root / target-arm / translate.c @ ea4571eb
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/*
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* ARM translation
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*
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* Copyright (c) 2003 Fabrice Bellard
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* Copyright (c) 2005-2007 CodeSourcery
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* Copyright (c) 2007 OpenedHand, Ltd.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdarg.h> |
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <string.h> |
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#include <inttypes.h> |
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#include "cpu.h" |
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#include "disas/disas.h" |
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#include "tcg-op.h" |
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#include "qemu/log.h" |
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#include "qemu/bitops.h" |
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#include "helper.h" |
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#define GEN_HELPER 1 |
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#include "helper.h" |
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#define ENABLE_ARCH_4T arm_feature(env, ARM_FEATURE_V4T)
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#define ENABLE_ARCH_5 arm_feature(env, ARM_FEATURE_V5)
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/* currently all emulated v5 cores are also v5TE, so don't bother */
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#define ENABLE_ARCH_5TE arm_feature(env, ARM_FEATURE_V5)
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#define ENABLE_ARCH_5J 0 |
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#define ENABLE_ARCH_6 arm_feature(env, ARM_FEATURE_V6)
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#define ENABLE_ARCH_6K arm_feature(env, ARM_FEATURE_V6K)
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#define ENABLE_ARCH_6T2 arm_feature(env, ARM_FEATURE_THUMB2)
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#define ENABLE_ARCH_7 arm_feature(env, ARM_FEATURE_V7)
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#define ENABLE_ARCH_8 arm_feature(env, ARM_FEATURE_V8)
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#define ARCH(x) do { if (!ENABLE_ARCH_##x) goto illegal_op; } while(0) |
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#include "translate.h" |
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static uint32_t gen_opc_condexec_bits[OPC_BUF_SIZE];
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#if defined(CONFIG_USER_ONLY)
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#define IS_USER(s) 1 |
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#else
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#define IS_USER(s) (s->user)
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#endif
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TCGv_ptr cpu_env; |
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/* We reuse the same 64-bit temporaries for efficiency. */
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static TCGv_i64 cpu_V0, cpu_V1, cpu_M0;
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static TCGv_i32 cpu_R[16]; |
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static TCGv_i32 cpu_CF, cpu_NF, cpu_VF, cpu_ZF;
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static TCGv_i64 cpu_exclusive_addr;
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static TCGv_i64 cpu_exclusive_val;
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#ifdef CONFIG_USER_ONLY
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static TCGv_i64 cpu_exclusive_test;
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static TCGv_i32 cpu_exclusive_info;
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#endif
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/* FIXME: These should be removed. */
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static TCGv_i32 cpu_F0s, cpu_F1s;
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static TCGv_i64 cpu_F0d, cpu_F1d;
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#include "exec/gen-icount.h" |
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static const char *regnames[] = |
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{ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
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"r8", "r9", "r10", "r11", "r12", "r13", "r14", "pc" }; |
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/* initialize TCG globals. */
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void arm_translate_init(void) |
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{
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int i;
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cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
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for (i = 0; i < 16; i++) { |
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cpu_R[i] = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUARMState, regs[i]), |
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regnames[i]); |
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} |
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cpu_CF = tcg_global_mem_new_i32(TCG_AREG0, offsetof(CPUARMState, CF), "CF");
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cpu_NF = tcg_global_mem_new_i32(TCG_AREG0, offsetof(CPUARMState, NF), "NF");
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cpu_VF = tcg_global_mem_new_i32(TCG_AREG0, offsetof(CPUARMState, VF), "VF");
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cpu_ZF = tcg_global_mem_new_i32(TCG_AREG0, offsetof(CPUARMState, ZF), "ZF");
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cpu_exclusive_addr = tcg_global_mem_new_i64(TCG_AREG0, |
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offsetof(CPUARMState, exclusive_addr), "exclusive_addr");
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cpu_exclusive_val = tcg_global_mem_new_i64(TCG_AREG0, |
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offsetof(CPUARMState, exclusive_val), "exclusive_val");
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#ifdef CONFIG_USER_ONLY
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cpu_exclusive_test = tcg_global_mem_new_i64(TCG_AREG0, |
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offsetof(CPUARMState, exclusive_test), "exclusive_test");
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cpu_exclusive_info = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUARMState, exclusive_info), "exclusive_info");
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#endif
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a64_translate_init(); |
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} |
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static inline TCGv_i32 load_cpu_offset(int offset) |
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{
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TCGv_i32 tmp = tcg_temp_new_i32(); |
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tcg_gen_ld_i32(tmp, cpu_env, offset); |
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return tmp;
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} |
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#define load_cpu_field(name) load_cpu_offset(offsetof(CPUARMState, name))
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static inline void store_cpu_offset(TCGv_i32 var, int offset) |
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{
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tcg_gen_st_i32(var, cpu_env, offset); |
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tcg_temp_free_i32(var); |
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} |
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#define store_cpu_field(var, name) \
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store_cpu_offset(var, offsetof(CPUARMState, name)) |
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/* Set a variable to the value of a CPU register. */
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static void load_reg_var(DisasContext *s, TCGv_i32 var, int reg) |
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{
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if (reg == 15) { |
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uint32_t addr; |
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/* normally, since we updated PC, we need only to add one insn */
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if (s->thumb)
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addr = (long)s->pc + 2; |
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else
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addr = (long)s->pc + 4; |
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tcg_gen_movi_i32(var, addr); |
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} else {
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tcg_gen_mov_i32(var, cpu_R[reg]); |
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} |
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} |
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/* Create a new temporary and set it to the value of a CPU register. */
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static inline TCGv_i32 load_reg(DisasContext *s, int reg) |
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{
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TCGv_i32 tmp = tcg_temp_new_i32(); |
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load_reg_var(s, tmp, reg); |
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return tmp;
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} |
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/* Set a CPU register. The source must be a temporary and will be
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marked as dead. */
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static void store_reg(DisasContext *s, int reg, TCGv_i32 var) |
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{
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if (reg == 15) { |
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tcg_gen_andi_i32(var, var, ~1);
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s->is_jmp = DISAS_JUMP; |
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} |
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tcg_gen_mov_i32(cpu_R[reg], var); |
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tcg_temp_free_i32(var); |
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} |
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/* Value extensions. */
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#define gen_uxtb(var) tcg_gen_ext8u_i32(var, var)
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#define gen_uxth(var) tcg_gen_ext16u_i32(var, var)
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#define gen_sxtb(var) tcg_gen_ext8s_i32(var, var)
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#define gen_sxth(var) tcg_gen_ext16s_i32(var, var)
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#define gen_sxtb16(var) gen_helper_sxtb16(var, var)
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#define gen_uxtb16(var) gen_helper_uxtb16(var, var)
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static inline void gen_set_cpsr(TCGv_i32 var, uint32_t mask) |
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{
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TCGv_i32 tmp_mask = tcg_const_i32(mask); |
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gen_helper_cpsr_write(cpu_env, var, tmp_mask); |
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tcg_temp_free_i32(tmp_mask); |
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} |
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/* Set NZCV flags from the high 4 bits of var. */
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#define gen_set_nzcv(var) gen_set_cpsr(var, CPSR_NZCV)
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static void gen_exception(int excp) |
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{
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TCGv_i32 tmp = tcg_temp_new_i32(); |
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tcg_gen_movi_i32(tmp, excp); |
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gen_helper_exception(cpu_env, tmp); |
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tcg_temp_free_i32(tmp); |
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} |
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static void gen_smul_dual(TCGv_i32 a, TCGv_i32 b) |
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{
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TCGv_i32 tmp1 = tcg_temp_new_i32(); |
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TCGv_i32 tmp2 = tcg_temp_new_i32(); |
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tcg_gen_ext16s_i32(tmp1, a); |
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tcg_gen_ext16s_i32(tmp2, b); |
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tcg_gen_mul_i32(tmp1, tmp1, tmp2); |
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tcg_temp_free_i32(tmp2); |
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tcg_gen_sari_i32(a, a, 16);
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tcg_gen_sari_i32(b, b, 16);
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tcg_gen_mul_i32(b, b, a); |
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tcg_gen_mov_i32(a, tmp1); |
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tcg_temp_free_i32(tmp1); |
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} |
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/* Byteswap each halfword. */
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static void gen_rev16(TCGv_i32 var) |
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{
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TCGv_i32 tmp = tcg_temp_new_i32(); |
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tcg_gen_shri_i32(tmp, var, 8);
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tcg_gen_andi_i32(tmp, tmp, 0x00ff00ff);
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tcg_gen_shli_i32(var, var, 8);
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tcg_gen_andi_i32(var, var, 0xff00ff00);
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tcg_gen_or_i32(var, var, tmp); |
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tcg_temp_free_i32(tmp); |
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} |
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/* Byteswap low halfword and sign extend. */
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static void gen_revsh(TCGv_i32 var) |
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{
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tcg_gen_ext16u_i32(var, var); |
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tcg_gen_bswap16_i32(var, var); |
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tcg_gen_ext16s_i32(var, var); |
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} |
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/* Unsigned bitfield extract. */
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static void gen_ubfx(TCGv_i32 var, int shift, uint32_t mask) |
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{
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if (shift)
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tcg_gen_shri_i32(var, var, shift); |
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tcg_gen_andi_i32(var, var, mask); |
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} |
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/* Signed bitfield extract. */
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static void gen_sbfx(TCGv_i32 var, int shift, int width) |
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{
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uint32_t signbit; |
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if (shift)
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tcg_gen_sari_i32(var, var, shift); |
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if (shift + width < 32) { |
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signbit = 1u << (width - 1); |
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tcg_gen_andi_i32(var, var, (1u << width) - 1); |
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tcg_gen_xori_i32(var, var, signbit); |
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tcg_gen_subi_i32(var, var, signbit); |
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} |
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} |
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|
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/* Return (b << 32) + a. Mark inputs as dead */
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static TCGv_i64 gen_addq_msw(TCGv_i64 a, TCGv_i32 b)
|
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{
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TCGv_i64 tmp64 = tcg_temp_new_i64(); |
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tcg_gen_extu_i32_i64(tmp64, b); |
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tcg_temp_free_i32(b); |
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tcg_gen_shli_i64(tmp64, tmp64, 32);
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tcg_gen_add_i64(a, tmp64, a); |
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tcg_temp_free_i64(tmp64); |
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return a;
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} |
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/* Return (b << 32) - a. Mark inputs as dead. */
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static TCGv_i64 gen_subq_msw(TCGv_i64 a, TCGv_i32 b)
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{
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TCGv_i64 tmp64 = tcg_temp_new_i64(); |
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tcg_gen_extu_i32_i64(tmp64, b); |
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tcg_temp_free_i32(b); |
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tcg_gen_shli_i64(tmp64, tmp64, 32);
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tcg_gen_sub_i64(a, tmp64, a); |
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tcg_temp_free_i64(tmp64); |
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return a;
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} |
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/* 32x32->64 multiply. Marks inputs as dead. */
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static TCGv_i64 gen_mulu_i64_i32(TCGv_i32 a, TCGv_i32 b)
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{
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TCGv_i32 lo = tcg_temp_new_i32(); |
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TCGv_i32 hi = tcg_temp_new_i32(); |
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TCGv_i64 ret; |
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tcg_gen_mulu2_i32(lo, hi, a, b); |
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tcg_temp_free_i32(a); |
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tcg_temp_free_i32(b); |
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ret = tcg_temp_new_i64(); |
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tcg_gen_concat_i32_i64(ret, lo, hi); |
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tcg_temp_free_i32(lo); |
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tcg_temp_free_i32(hi); |
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return ret;
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} |
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static TCGv_i64 gen_muls_i64_i32(TCGv_i32 a, TCGv_i32 b)
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{
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TCGv_i32 lo = tcg_temp_new_i32(); |
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TCGv_i32 hi = tcg_temp_new_i32(); |
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TCGv_i64 ret; |
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tcg_gen_muls2_i32(lo, hi, a, b); |
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tcg_temp_free_i32(a); |
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tcg_temp_free_i32(b); |
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|
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ret = tcg_temp_new_i64(); |
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tcg_gen_concat_i32_i64(ret, lo, hi); |
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tcg_temp_free_i32(lo); |
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tcg_temp_free_i32(hi); |
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return ret;
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} |
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|
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/* Swap low and high halfwords. */
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static void gen_swap_half(TCGv_i32 var) |
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{
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TCGv_i32 tmp = tcg_temp_new_i32(); |
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tcg_gen_shri_i32(tmp, var, 16);
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tcg_gen_shli_i32(var, var, 16);
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tcg_gen_or_i32(var, var, tmp); |
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tcg_temp_free_i32(tmp); |
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} |
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|
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/* Dual 16-bit add. Result placed in t0 and t1 is marked as dead.
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tmp = (t0 ^ t1) & 0x8000;
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t0 &= ~0x8000;
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t1 &= ~0x8000;
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t0 = (t0 + t1) ^ tmp;
|
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*/
|
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|
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static void gen_add16(TCGv_i32 t0, TCGv_i32 t1) |
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{
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TCGv_i32 tmp = tcg_temp_new_i32(); |
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tcg_gen_xor_i32(tmp, t0, t1); |
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tcg_gen_andi_i32(tmp, tmp, 0x8000);
|
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tcg_gen_andi_i32(t0, t0, ~0x8000);
|
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tcg_gen_andi_i32(t1, t1, ~0x8000);
|
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tcg_gen_add_i32(t0, t0, t1); |
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tcg_gen_xor_i32(t0, t0, tmp); |
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tcg_temp_free_i32(tmp); |
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tcg_temp_free_i32(t1); |
| 344 |
} |
| 345 |
|
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/* Set CF to the top bit of var. */
|
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static void gen_set_CF_bit31(TCGv_i32 var) |
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{
|
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tcg_gen_shri_i32(cpu_CF, var, 31);
|
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} |
| 351 |
|
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/* Set N and Z flags from var. */
|
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static inline void gen_logic_CC(TCGv_i32 var) |
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{
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tcg_gen_mov_i32(cpu_NF, var); |
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tcg_gen_mov_i32(cpu_ZF, var); |
| 357 |
} |
| 358 |
|
| 359 |
/* T0 += T1 + CF. */
|
| 360 |
static void gen_adc(TCGv_i32 t0, TCGv_i32 t1) |
| 361 |
{
|
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tcg_gen_add_i32(t0, t0, t1); |
| 363 |
tcg_gen_add_i32(t0, t0, cpu_CF); |
| 364 |
} |
| 365 |
|
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/* dest = T0 + T1 + CF. */
|
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static void gen_add_carry(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1) |
| 368 |
{
|
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tcg_gen_add_i32(dest, t0, t1); |
| 370 |
tcg_gen_add_i32(dest, dest, cpu_CF); |
| 371 |
} |
| 372 |
|
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/* dest = T0 - T1 + CF - 1. */
|
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static void gen_sub_carry(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1) |
| 375 |
{
|
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tcg_gen_sub_i32(dest, t0, t1); |
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tcg_gen_add_i32(dest, dest, cpu_CF); |
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tcg_gen_subi_i32(dest, dest, 1);
|
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} |
| 380 |
|
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/* dest = T0 + T1. Compute C, N, V and Z flags */
|
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static void gen_add_CC(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1) |
| 383 |
{
|
| 384 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 385 |
tcg_gen_movi_i32(tmp, 0);
|
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tcg_gen_add2_i32(cpu_NF, cpu_CF, t0, tmp, t1, tmp); |
| 387 |
tcg_gen_mov_i32(cpu_ZF, cpu_NF); |
| 388 |
tcg_gen_xor_i32(cpu_VF, cpu_NF, t0); |
| 389 |
tcg_gen_xor_i32(tmp, t0, t1); |
| 390 |
tcg_gen_andc_i32(cpu_VF, cpu_VF, tmp); |
| 391 |
tcg_temp_free_i32(tmp); |
| 392 |
tcg_gen_mov_i32(dest, cpu_NF); |
| 393 |
} |
| 394 |
|
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/* dest = T0 + T1 + CF. Compute C, N, V and Z flags */
|
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static void gen_adc_CC(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1) |
| 397 |
{
|
| 398 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 399 |
if (TCG_TARGET_HAS_add2_i32) {
|
| 400 |
tcg_gen_movi_i32(tmp, 0);
|
| 401 |
tcg_gen_add2_i32(cpu_NF, cpu_CF, t0, tmp, cpu_CF, tmp); |
| 402 |
tcg_gen_add2_i32(cpu_NF, cpu_CF, cpu_NF, cpu_CF, t1, tmp); |
| 403 |
} else {
|
| 404 |
TCGv_i64 q0 = tcg_temp_new_i64(); |
| 405 |
TCGv_i64 q1 = tcg_temp_new_i64(); |
| 406 |
tcg_gen_extu_i32_i64(q0, t0); |
| 407 |
tcg_gen_extu_i32_i64(q1, t1); |
| 408 |
tcg_gen_add_i64(q0, q0, q1); |
| 409 |
tcg_gen_extu_i32_i64(q1, cpu_CF); |
| 410 |
tcg_gen_add_i64(q0, q0, q1); |
| 411 |
tcg_gen_extr_i64_i32(cpu_NF, cpu_CF, q0); |
| 412 |
tcg_temp_free_i64(q0); |
| 413 |
tcg_temp_free_i64(q1); |
| 414 |
} |
| 415 |
tcg_gen_mov_i32(cpu_ZF, cpu_NF); |
| 416 |
tcg_gen_xor_i32(cpu_VF, cpu_NF, t0); |
| 417 |
tcg_gen_xor_i32(tmp, t0, t1); |
| 418 |
tcg_gen_andc_i32(cpu_VF, cpu_VF, tmp); |
| 419 |
tcg_temp_free_i32(tmp); |
| 420 |
tcg_gen_mov_i32(dest, cpu_NF); |
| 421 |
} |
| 422 |
|
| 423 |
/* dest = T0 - T1. Compute C, N, V and Z flags */
|
| 424 |
static void gen_sub_CC(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1) |
| 425 |
{
|
| 426 |
TCGv_i32 tmp; |
| 427 |
tcg_gen_sub_i32(cpu_NF, t0, t1); |
| 428 |
tcg_gen_mov_i32(cpu_ZF, cpu_NF); |
| 429 |
tcg_gen_setcond_i32(TCG_COND_GEU, cpu_CF, t0, t1); |
| 430 |
tcg_gen_xor_i32(cpu_VF, cpu_NF, t0); |
| 431 |
tmp = tcg_temp_new_i32(); |
| 432 |
tcg_gen_xor_i32(tmp, t0, t1); |
| 433 |
tcg_gen_and_i32(cpu_VF, cpu_VF, tmp); |
| 434 |
tcg_temp_free_i32(tmp); |
| 435 |
tcg_gen_mov_i32(dest, cpu_NF); |
| 436 |
} |
| 437 |
|
| 438 |
/* dest = T0 + ~T1 + CF. Compute C, N, V and Z flags */
|
| 439 |
static void gen_sbc_CC(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1) |
| 440 |
{
|
| 441 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 442 |
tcg_gen_not_i32(tmp, t1); |
| 443 |
gen_adc_CC(dest, t0, tmp); |
| 444 |
tcg_temp_free_i32(tmp); |
| 445 |
} |
| 446 |
|
| 447 |
#define GEN_SHIFT(name) \
|
| 448 |
static void gen_##name(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1) \ |
| 449 |
{ \
|
| 450 |
TCGv_i32 tmp1, tmp2, tmp3; \ |
| 451 |
tmp1 = tcg_temp_new_i32(); \ |
| 452 |
tcg_gen_andi_i32(tmp1, t1, 0xff); \
|
| 453 |
tmp2 = tcg_const_i32(0); \
|
| 454 |
tmp3 = tcg_const_i32(0x1f); \
|
| 455 |
tcg_gen_movcond_i32(TCG_COND_GTU, tmp2, tmp1, tmp3, tmp2, t0); \ |
| 456 |
tcg_temp_free_i32(tmp3); \ |
| 457 |
tcg_gen_andi_i32(tmp1, tmp1, 0x1f); \
|
| 458 |
tcg_gen_##name##_i32(dest, tmp2, tmp1); \ |
| 459 |
tcg_temp_free_i32(tmp2); \ |
| 460 |
tcg_temp_free_i32(tmp1); \ |
| 461 |
} |
| 462 |
GEN_SHIFT(shl) |
| 463 |
GEN_SHIFT(shr) |
| 464 |
#undef GEN_SHIFT
|
| 465 |
|
| 466 |
static void gen_sar(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1) |
| 467 |
{
|
| 468 |
TCGv_i32 tmp1, tmp2; |
| 469 |
tmp1 = tcg_temp_new_i32(); |
| 470 |
tcg_gen_andi_i32(tmp1, t1, 0xff);
|
| 471 |
tmp2 = tcg_const_i32(0x1f);
|
| 472 |
tcg_gen_movcond_i32(TCG_COND_GTU, tmp1, tmp1, tmp2, tmp2, tmp1); |
| 473 |
tcg_temp_free_i32(tmp2); |
| 474 |
tcg_gen_sar_i32(dest, t0, tmp1); |
| 475 |
tcg_temp_free_i32(tmp1); |
| 476 |
} |
| 477 |
|
| 478 |
static void tcg_gen_abs_i32(TCGv_i32 dest, TCGv_i32 src) |
| 479 |
{
|
| 480 |
TCGv_i32 c0 = tcg_const_i32(0);
|
| 481 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 482 |
tcg_gen_neg_i32(tmp, src); |
| 483 |
tcg_gen_movcond_i32(TCG_COND_GT, dest, src, c0, src, tmp); |
| 484 |
tcg_temp_free_i32(c0); |
| 485 |
tcg_temp_free_i32(tmp); |
| 486 |
} |
| 487 |
|
| 488 |
static void shifter_out_im(TCGv_i32 var, int shift) |
| 489 |
{
|
| 490 |
if (shift == 0) { |
| 491 |
tcg_gen_andi_i32(cpu_CF, var, 1);
|
| 492 |
} else {
|
| 493 |
tcg_gen_shri_i32(cpu_CF, var, shift); |
| 494 |
if (shift != 31) { |
| 495 |
tcg_gen_andi_i32(cpu_CF, cpu_CF, 1);
|
| 496 |
} |
| 497 |
} |
| 498 |
} |
| 499 |
|
| 500 |
/* Shift by immediate. Includes special handling for shift == 0. */
|
| 501 |
static inline void gen_arm_shift_im(TCGv_i32 var, int shiftop, |
| 502 |
int shift, int flags) |
| 503 |
{
|
| 504 |
switch (shiftop) {
|
| 505 |
case 0: /* LSL */ |
| 506 |
if (shift != 0) { |
| 507 |
if (flags)
|
| 508 |
shifter_out_im(var, 32 - shift);
|
| 509 |
tcg_gen_shli_i32(var, var, shift); |
| 510 |
} |
| 511 |
break;
|
| 512 |
case 1: /* LSR */ |
| 513 |
if (shift == 0) { |
| 514 |
if (flags) {
|
| 515 |
tcg_gen_shri_i32(cpu_CF, var, 31);
|
| 516 |
} |
| 517 |
tcg_gen_movi_i32(var, 0);
|
| 518 |
} else {
|
| 519 |
if (flags)
|
| 520 |
shifter_out_im(var, shift - 1);
|
| 521 |
tcg_gen_shri_i32(var, var, shift); |
| 522 |
} |
| 523 |
break;
|
| 524 |
case 2: /* ASR */ |
| 525 |
if (shift == 0) |
| 526 |
shift = 32;
|
| 527 |
if (flags)
|
| 528 |
shifter_out_im(var, shift - 1);
|
| 529 |
if (shift == 32) |
| 530 |
shift = 31;
|
| 531 |
tcg_gen_sari_i32(var, var, shift); |
| 532 |
break;
|
| 533 |
case 3: /* ROR/RRX */ |
| 534 |
if (shift != 0) { |
| 535 |
if (flags)
|
| 536 |
shifter_out_im(var, shift - 1);
|
| 537 |
tcg_gen_rotri_i32(var, var, shift); break;
|
| 538 |
} else {
|
| 539 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 540 |
tcg_gen_shli_i32(tmp, cpu_CF, 31);
|
| 541 |
if (flags)
|
| 542 |
shifter_out_im(var, 0);
|
| 543 |
tcg_gen_shri_i32(var, var, 1);
|
| 544 |
tcg_gen_or_i32(var, var, tmp); |
| 545 |
tcg_temp_free_i32(tmp); |
| 546 |
} |
| 547 |
} |
| 548 |
}; |
| 549 |
|
| 550 |
static inline void gen_arm_shift_reg(TCGv_i32 var, int shiftop, |
| 551 |
TCGv_i32 shift, int flags)
|
| 552 |
{
|
| 553 |
if (flags) {
|
| 554 |
switch (shiftop) {
|
| 555 |
case 0: gen_helper_shl_cc(var, cpu_env, var, shift); break; |
| 556 |
case 1: gen_helper_shr_cc(var, cpu_env, var, shift); break; |
| 557 |
case 2: gen_helper_sar_cc(var, cpu_env, var, shift); break; |
| 558 |
case 3: gen_helper_ror_cc(var, cpu_env, var, shift); break; |
| 559 |
} |
| 560 |
} else {
|
| 561 |
switch (shiftop) {
|
| 562 |
case 0: |
| 563 |
gen_shl(var, var, shift); |
| 564 |
break;
|
| 565 |
case 1: |
| 566 |
gen_shr(var, var, shift); |
| 567 |
break;
|
| 568 |
case 2: |
| 569 |
gen_sar(var, var, shift); |
| 570 |
break;
|
| 571 |
case 3: tcg_gen_andi_i32(shift, shift, 0x1f); |
| 572 |
tcg_gen_rotr_i32(var, var, shift); break;
|
| 573 |
} |
| 574 |
} |
| 575 |
tcg_temp_free_i32(shift); |
| 576 |
} |
| 577 |
|
| 578 |
#define PAS_OP(pfx) \
|
| 579 |
switch (op2) { \
|
| 580 |
case 0: gen_pas_helper(glue(pfx,add16)); break; \ |
| 581 |
case 1: gen_pas_helper(glue(pfx,addsubx)); break; \ |
| 582 |
case 2: gen_pas_helper(glue(pfx,subaddx)); break; \ |
| 583 |
case 3: gen_pas_helper(glue(pfx,sub16)); break; \ |
| 584 |
case 4: gen_pas_helper(glue(pfx,add8)); break; \ |
| 585 |
case 7: gen_pas_helper(glue(pfx,sub8)); break; \ |
| 586 |
} |
| 587 |
static void gen_arm_parallel_addsub(int op1, int op2, TCGv_i32 a, TCGv_i32 b) |
| 588 |
{
|
| 589 |
TCGv_ptr tmp; |
| 590 |
|
| 591 |
switch (op1) {
|
| 592 |
#define gen_pas_helper(name) glue(gen_helper_,name)(a, a, b, tmp)
|
| 593 |
case 1: |
| 594 |
tmp = tcg_temp_new_ptr(); |
| 595 |
tcg_gen_addi_ptr(tmp, cpu_env, offsetof(CPUARMState, GE)); |
| 596 |
PAS_OP(s) |
| 597 |
tcg_temp_free_ptr(tmp); |
| 598 |
break;
|
| 599 |
case 5: |
| 600 |
tmp = tcg_temp_new_ptr(); |
| 601 |
tcg_gen_addi_ptr(tmp, cpu_env, offsetof(CPUARMState, GE)); |
| 602 |
PAS_OP(u) |
| 603 |
tcg_temp_free_ptr(tmp); |
| 604 |
break;
|
| 605 |
#undef gen_pas_helper
|
| 606 |
#define gen_pas_helper(name) glue(gen_helper_,name)(a, a, b)
|
| 607 |
case 2: |
| 608 |
PAS_OP(q); |
| 609 |
break;
|
| 610 |
case 3: |
| 611 |
PAS_OP(sh); |
| 612 |
break;
|
| 613 |
case 6: |
| 614 |
PAS_OP(uq); |
| 615 |
break;
|
| 616 |
case 7: |
| 617 |
PAS_OP(uh); |
| 618 |
break;
|
| 619 |
#undef gen_pas_helper
|
| 620 |
} |
| 621 |
} |
| 622 |
#undef PAS_OP
|
| 623 |
|
| 624 |
/* For unknown reasons Arm and Thumb-2 use arbitrarily different encodings. */
|
| 625 |
#define PAS_OP(pfx) \
|
| 626 |
switch (op1) { \
|
| 627 |
case 0: gen_pas_helper(glue(pfx,add8)); break; \ |
| 628 |
case 1: gen_pas_helper(glue(pfx,add16)); break; \ |
| 629 |
case 2: gen_pas_helper(glue(pfx,addsubx)); break; \ |
| 630 |
case 4: gen_pas_helper(glue(pfx,sub8)); break; \ |
| 631 |
case 5: gen_pas_helper(glue(pfx,sub16)); break; \ |
| 632 |
case 6: gen_pas_helper(glue(pfx,subaddx)); break; \ |
| 633 |
} |
| 634 |
static void gen_thumb2_parallel_addsub(int op1, int op2, TCGv_i32 a, TCGv_i32 b) |
| 635 |
{
|
| 636 |
TCGv_ptr tmp; |
| 637 |
|
| 638 |
switch (op2) {
|
| 639 |
#define gen_pas_helper(name) glue(gen_helper_,name)(a, a, b, tmp)
|
| 640 |
case 0: |
| 641 |
tmp = tcg_temp_new_ptr(); |
| 642 |
tcg_gen_addi_ptr(tmp, cpu_env, offsetof(CPUARMState, GE)); |
| 643 |
PAS_OP(s) |
| 644 |
tcg_temp_free_ptr(tmp); |
| 645 |
break;
|
| 646 |
case 4: |
| 647 |
tmp = tcg_temp_new_ptr(); |
| 648 |
tcg_gen_addi_ptr(tmp, cpu_env, offsetof(CPUARMState, GE)); |
| 649 |
PAS_OP(u) |
| 650 |
tcg_temp_free_ptr(tmp); |
| 651 |
break;
|
| 652 |
#undef gen_pas_helper
|
| 653 |
#define gen_pas_helper(name) glue(gen_helper_,name)(a, a, b)
|
| 654 |
case 1: |
| 655 |
PAS_OP(q); |
| 656 |
break;
|
| 657 |
case 2: |
| 658 |
PAS_OP(sh); |
| 659 |
break;
|
| 660 |
case 5: |
| 661 |
PAS_OP(uq); |
| 662 |
break;
|
| 663 |
case 6: |
| 664 |
PAS_OP(uh); |
| 665 |
break;
|
| 666 |
#undef gen_pas_helper
|
| 667 |
} |
| 668 |
} |
| 669 |
#undef PAS_OP
|
| 670 |
|
| 671 |
/*
|
| 672 |
* generate a conditional branch based on ARM condition code cc.
|
| 673 |
* This is common between ARM and Aarch64 targets.
|
| 674 |
*/
|
| 675 |
void arm_gen_test_cc(int cc, int label) |
| 676 |
{
|
| 677 |
TCGv_i32 tmp; |
| 678 |
int inv;
|
| 679 |
|
| 680 |
switch (cc) {
|
| 681 |
case 0: /* eq: Z */ |
| 682 |
tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_ZF, 0, label);
|
| 683 |
break;
|
| 684 |
case 1: /* ne: !Z */ |
| 685 |
tcg_gen_brcondi_i32(TCG_COND_NE, cpu_ZF, 0, label);
|
| 686 |
break;
|
| 687 |
case 2: /* cs: C */ |
| 688 |
tcg_gen_brcondi_i32(TCG_COND_NE, cpu_CF, 0, label);
|
| 689 |
break;
|
| 690 |
case 3: /* cc: !C */ |
| 691 |
tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_CF, 0, label);
|
| 692 |
break;
|
| 693 |
case 4: /* mi: N */ |
| 694 |
tcg_gen_brcondi_i32(TCG_COND_LT, cpu_NF, 0, label);
|
| 695 |
break;
|
| 696 |
case 5: /* pl: !N */ |
| 697 |
tcg_gen_brcondi_i32(TCG_COND_GE, cpu_NF, 0, label);
|
| 698 |
break;
|
| 699 |
case 6: /* vs: V */ |
| 700 |
tcg_gen_brcondi_i32(TCG_COND_LT, cpu_VF, 0, label);
|
| 701 |
break;
|
| 702 |
case 7: /* vc: !V */ |
| 703 |
tcg_gen_brcondi_i32(TCG_COND_GE, cpu_VF, 0, label);
|
| 704 |
break;
|
| 705 |
case 8: /* hi: C && !Z */ |
| 706 |
inv = gen_new_label(); |
| 707 |
tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_CF, 0, inv);
|
| 708 |
tcg_gen_brcondi_i32(TCG_COND_NE, cpu_ZF, 0, label);
|
| 709 |
gen_set_label(inv); |
| 710 |
break;
|
| 711 |
case 9: /* ls: !C || Z */ |
| 712 |
tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_CF, 0, label);
|
| 713 |
tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_ZF, 0, label);
|
| 714 |
break;
|
| 715 |
case 10: /* ge: N == V -> N ^ V == 0 */ |
| 716 |
tmp = tcg_temp_new_i32(); |
| 717 |
tcg_gen_xor_i32(tmp, cpu_VF, cpu_NF); |
| 718 |
tcg_gen_brcondi_i32(TCG_COND_GE, tmp, 0, label);
|
| 719 |
tcg_temp_free_i32(tmp); |
| 720 |
break;
|
| 721 |
case 11: /* lt: N != V -> N ^ V != 0 */ |
| 722 |
tmp = tcg_temp_new_i32(); |
| 723 |
tcg_gen_xor_i32(tmp, cpu_VF, cpu_NF); |
| 724 |
tcg_gen_brcondi_i32(TCG_COND_LT, tmp, 0, label);
|
| 725 |
tcg_temp_free_i32(tmp); |
| 726 |
break;
|
| 727 |
case 12: /* gt: !Z && N == V */ |
| 728 |
inv = gen_new_label(); |
| 729 |
tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_ZF, 0, inv);
|
| 730 |
tmp = tcg_temp_new_i32(); |
| 731 |
tcg_gen_xor_i32(tmp, cpu_VF, cpu_NF); |
| 732 |
tcg_gen_brcondi_i32(TCG_COND_GE, tmp, 0, label);
|
| 733 |
tcg_temp_free_i32(tmp); |
| 734 |
gen_set_label(inv); |
| 735 |
break;
|
| 736 |
case 13: /* le: Z || N != V */ |
| 737 |
tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_ZF, 0, label);
|
| 738 |
tmp = tcg_temp_new_i32(); |
| 739 |
tcg_gen_xor_i32(tmp, cpu_VF, cpu_NF); |
| 740 |
tcg_gen_brcondi_i32(TCG_COND_LT, tmp, 0, label);
|
| 741 |
tcg_temp_free_i32(tmp); |
| 742 |
break;
|
| 743 |
default:
|
| 744 |
fprintf(stderr, "Bad condition code 0x%x\n", cc);
|
| 745 |
abort(); |
| 746 |
} |
| 747 |
} |
| 748 |
|
| 749 |
static const uint8_t table_logic_cc[16] = { |
| 750 |
1, /* and */ |
| 751 |
1, /* xor */ |
| 752 |
0, /* sub */ |
| 753 |
0, /* rsb */ |
| 754 |
0, /* add */ |
| 755 |
0, /* adc */ |
| 756 |
0, /* sbc */ |
| 757 |
0, /* rsc */ |
| 758 |
1, /* andl */ |
| 759 |
1, /* xorl */ |
| 760 |
0, /* cmp */ |
| 761 |
0, /* cmn */ |
| 762 |
1, /* orr */ |
| 763 |
1, /* mov */ |
| 764 |
1, /* bic */ |
| 765 |
1, /* mvn */ |
| 766 |
}; |
| 767 |
|
| 768 |
/* Set PC and Thumb state from an immediate address. */
|
| 769 |
static inline void gen_bx_im(DisasContext *s, uint32_t addr) |
| 770 |
{
|
| 771 |
TCGv_i32 tmp; |
| 772 |
|
| 773 |
s->is_jmp = DISAS_UPDATE; |
| 774 |
if (s->thumb != (addr & 1)) { |
| 775 |
tmp = tcg_temp_new_i32(); |
| 776 |
tcg_gen_movi_i32(tmp, addr & 1);
|
| 777 |
tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUARMState, thumb)); |
| 778 |
tcg_temp_free_i32(tmp); |
| 779 |
} |
| 780 |
tcg_gen_movi_i32(cpu_R[15], addr & ~1); |
| 781 |
} |
| 782 |
|
| 783 |
/* Set PC and Thumb state from var. var is marked as dead. */
|
| 784 |
static inline void gen_bx(DisasContext *s, TCGv_i32 var) |
| 785 |
{
|
| 786 |
s->is_jmp = DISAS_UPDATE; |
| 787 |
tcg_gen_andi_i32(cpu_R[15], var, ~1); |
| 788 |
tcg_gen_andi_i32(var, var, 1);
|
| 789 |
store_cpu_field(var, thumb); |
| 790 |
} |
| 791 |
|
| 792 |
/* Variant of store_reg which uses branch&exchange logic when storing
|
| 793 |
to r15 in ARM architecture v7 and above. The source must be a temporary
|
| 794 |
and will be marked as dead. */
|
| 795 |
static inline void store_reg_bx(CPUARMState *env, DisasContext *s, |
| 796 |
int reg, TCGv_i32 var)
|
| 797 |
{
|
| 798 |
if (reg == 15 && ENABLE_ARCH_7) { |
| 799 |
gen_bx(s, var); |
| 800 |
} else {
|
| 801 |
store_reg(s, reg, var); |
| 802 |
} |
| 803 |
} |
| 804 |
|
| 805 |
/* Variant of store_reg which uses branch&exchange logic when storing
|
| 806 |
* to r15 in ARM architecture v5T and above. This is used for storing
|
| 807 |
* the results of a LDR/LDM/POP into r15, and corresponds to the cases
|
| 808 |
* in the ARM ARM which use the LoadWritePC() pseudocode function. */
|
| 809 |
static inline void store_reg_from_load(CPUARMState *env, DisasContext *s, |
| 810 |
int reg, TCGv_i32 var)
|
| 811 |
{
|
| 812 |
if (reg == 15 && ENABLE_ARCH_5) { |
| 813 |
gen_bx(s, var); |
| 814 |
} else {
|
| 815 |
store_reg(s, reg, var); |
| 816 |
} |
| 817 |
} |
| 818 |
|
| 819 |
/* Abstractions of "generate code to do a guest load/store for
|
| 820 |
* AArch32", where a vaddr is always 32 bits (and is zero
|
| 821 |
* extended if we're a 64 bit core) and data is also
|
| 822 |
* 32 bits unless specifically doing a 64 bit access.
|
| 823 |
* These functions work like tcg_gen_qemu_{ld,st}* except
|
| 824 |
* that the address argument is TCGv_i32 rather than TCGv.
|
| 825 |
*/
|
| 826 |
#if TARGET_LONG_BITS == 32 |
| 827 |
|
| 828 |
#define DO_GEN_LD(SUFF, OPC) \
|
| 829 |
static inline void gen_aa32_ld##SUFF(TCGv_i32 val, TCGv_i32 addr, int index) \ |
| 830 |
{ \
|
| 831 |
tcg_gen_qemu_ld_i32(val, addr, index, OPC); \ |
| 832 |
} |
| 833 |
|
| 834 |
#define DO_GEN_ST(SUFF, OPC) \
|
| 835 |
static inline void gen_aa32_st##SUFF(TCGv_i32 val, TCGv_i32 addr, int index) \ |
| 836 |
{ \
|
| 837 |
tcg_gen_qemu_st_i32(val, addr, index, OPC); \ |
| 838 |
} |
| 839 |
|
| 840 |
static inline void gen_aa32_ld64(TCGv_i64 val, TCGv_i32 addr, int index) |
| 841 |
{
|
| 842 |
tcg_gen_qemu_ld_i64(val, addr, index, MO_TEQ); |
| 843 |
} |
| 844 |
|
| 845 |
static inline void gen_aa32_st64(TCGv_i64 val, TCGv_i32 addr, int index) |
| 846 |
{
|
| 847 |
tcg_gen_qemu_st_i64(val, addr, index, MO_TEQ); |
| 848 |
} |
| 849 |
|
| 850 |
#else
|
| 851 |
|
| 852 |
#define DO_GEN_LD(SUFF, OPC) \
|
| 853 |
static inline void gen_aa32_ld##SUFF(TCGv_i32 val, TCGv_i32 addr, int index) \ |
| 854 |
{ \
|
| 855 |
TCGv addr64 = tcg_temp_new(); \ |
| 856 |
tcg_gen_extu_i32_i64(addr64, addr); \ |
| 857 |
tcg_gen_qemu_ld_i32(val, addr64, index, OPC); \ |
| 858 |
tcg_temp_free(addr64); \ |
| 859 |
} |
| 860 |
|
| 861 |
#define DO_GEN_ST(SUFF, OPC) \
|
| 862 |
static inline void gen_aa32_st##SUFF(TCGv_i32 val, TCGv_i32 addr, int index) \ |
| 863 |
{ \
|
| 864 |
TCGv addr64 = tcg_temp_new(); \ |
| 865 |
tcg_gen_extu_i32_i64(addr64, addr); \ |
| 866 |
tcg_gen_qemu_st_i32(val, addr64, index, OPC); \ |
| 867 |
tcg_temp_free(addr64); \ |
| 868 |
} |
| 869 |
|
| 870 |
static inline void gen_aa32_ld64(TCGv_i64 val, TCGv_i32 addr, int index) |
| 871 |
{
|
| 872 |
TCGv addr64 = tcg_temp_new(); |
| 873 |
tcg_gen_extu_i32_i64(addr64, addr); |
| 874 |
tcg_gen_qemu_ld_i64(val, addr64, index, MO_TEQ); |
| 875 |
tcg_temp_free(addr64); |
| 876 |
} |
| 877 |
|
| 878 |
static inline void gen_aa32_st64(TCGv_i64 val, TCGv_i32 addr, int index) |
| 879 |
{
|
| 880 |
TCGv addr64 = tcg_temp_new(); |
| 881 |
tcg_gen_extu_i32_i64(addr64, addr); |
| 882 |
tcg_gen_qemu_st_i64(val, addr64, index, MO_TEQ); |
| 883 |
tcg_temp_free(addr64); |
| 884 |
} |
| 885 |
|
| 886 |
#endif
|
| 887 |
|
| 888 |
DO_GEN_LD(8s, MO_SB)
|
| 889 |
DO_GEN_LD(8u, MO_UB)
|
| 890 |
DO_GEN_LD(16s, MO_TESW)
|
| 891 |
DO_GEN_LD(16u, MO_TEUW)
|
| 892 |
DO_GEN_LD(32u, MO_TEUL)
|
| 893 |
DO_GEN_ST(8, MO_UB)
|
| 894 |
DO_GEN_ST(16, MO_TEUW)
|
| 895 |
DO_GEN_ST(32, MO_TEUL)
|
| 896 |
|
| 897 |
static inline void gen_set_pc_im(DisasContext *s, target_ulong val) |
| 898 |
{
|
| 899 |
tcg_gen_movi_i32(cpu_R[15], val);
|
| 900 |
} |
| 901 |
|
| 902 |
/* Force a TB lookup after an instruction that changes the CPU state. */
|
| 903 |
static inline void gen_lookup_tb(DisasContext *s) |
| 904 |
{
|
| 905 |
tcg_gen_movi_i32(cpu_R[15], s->pc & ~1); |
| 906 |
s->is_jmp = DISAS_UPDATE; |
| 907 |
} |
| 908 |
|
| 909 |
static inline void gen_add_data_offset(DisasContext *s, unsigned int insn, |
| 910 |
TCGv_i32 var) |
| 911 |
{
|
| 912 |
int val, rm, shift, shiftop;
|
| 913 |
TCGv_i32 offset; |
| 914 |
|
| 915 |
if (!(insn & (1 << 25))) { |
| 916 |
/* immediate */
|
| 917 |
val = insn & 0xfff;
|
| 918 |
if (!(insn & (1 << 23))) |
| 919 |
val = -val; |
| 920 |
if (val != 0) |
| 921 |
tcg_gen_addi_i32(var, var, val); |
| 922 |
} else {
|
| 923 |
/* shift/register */
|
| 924 |
rm = (insn) & 0xf;
|
| 925 |
shift = (insn >> 7) & 0x1f; |
| 926 |
shiftop = (insn >> 5) & 3; |
| 927 |
offset = load_reg(s, rm); |
| 928 |
gen_arm_shift_im(offset, shiftop, shift, 0);
|
| 929 |
if (!(insn & (1 << 23))) |
| 930 |
tcg_gen_sub_i32(var, var, offset); |
| 931 |
else
|
| 932 |
tcg_gen_add_i32(var, var, offset); |
| 933 |
tcg_temp_free_i32(offset); |
| 934 |
} |
| 935 |
} |
| 936 |
|
| 937 |
static inline void gen_add_datah_offset(DisasContext *s, unsigned int insn, |
| 938 |
int extra, TCGv_i32 var)
|
| 939 |
{
|
| 940 |
int val, rm;
|
| 941 |
TCGv_i32 offset; |
| 942 |
|
| 943 |
if (insn & (1 << 22)) { |
| 944 |
/* immediate */
|
| 945 |
val = (insn & 0xf) | ((insn >> 4) & 0xf0); |
| 946 |
if (!(insn & (1 << 23))) |
| 947 |
val = -val; |
| 948 |
val += extra; |
| 949 |
if (val != 0) |
| 950 |
tcg_gen_addi_i32(var, var, val); |
| 951 |
} else {
|
| 952 |
/* register */
|
| 953 |
if (extra)
|
| 954 |
tcg_gen_addi_i32(var, var, extra); |
| 955 |
rm = (insn) & 0xf;
|
| 956 |
offset = load_reg(s, rm); |
| 957 |
if (!(insn & (1 << 23))) |
| 958 |
tcg_gen_sub_i32(var, var, offset); |
| 959 |
else
|
| 960 |
tcg_gen_add_i32(var, var, offset); |
| 961 |
tcg_temp_free_i32(offset); |
| 962 |
} |
| 963 |
} |
| 964 |
|
| 965 |
static TCGv_ptr get_fpstatus_ptr(int neon) |
| 966 |
{
|
| 967 |
TCGv_ptr statusptr = tcg_temp_new_ptr(); |
| 968 |
int offset;
|
| 969 |
if (neon) {
|
| 970 |
offset = offsetof(CPUARMState, vfp.standard_fp_status); |
| 971 |
} else {
|
| 972 |
offset = offsetof(CPUARMState, vfp.fp_status); |
| 973 |
} |
| 974 |
tcg_gen_addi_ptr(statusptr, cpu_env, offset); |
| 975 |
return statusptr;
|
| 976 |
} |
| 977 |
|
| 978 |
#define VFP_OP2(name) \
|
| 979 |
static inline void gen_vfp_##name(int dp) \ |
| 980 |
{ \
|
| 981 |
TCGv_ptr fpst = get_fpstatus_ptr(0); \
|
| 982 |
if (dp) { \
|
| 983 |
gen_helper_vfp_##name##d(cpu_F0d, cpu_F0d, cpu_F1d, fpst); \ |
| 984 |
} else { \
|
| 985 |
gen_helper_vfp_##name##s(cpu_F0s, cpu_F0s, cpu_F1s, fpst); \ |
| 986 |
} \ |
| 987 |
tcg_temp_free_ptr(fpst); \ |
| 988 |
} |
| 989 |
|
| 990 |
VFP_OP2(add) |
| 991 |
VFP_OP2(sub) |
| 992 |
VFP_OP2(mul) |
| 993 |
VFP_OP2(div) |
| 994 |
|
| 995 |
#undef VFP_OP2
|
| 996 |
|
| 997 |
static inline void gen_vfp_F1_mul(int dp) |
| 998 |
{
|
| 999 |
/* Like gen_vfp_mul() but put result in F1 */
|
| 1000 |
TCGv_ptr fpst = get_fpstatus_ptr(0);
|
| 1001 |
if (dp) {
|
| 1002 |
gen_helper_vfp_muld(cpu_F1d, cpu_F0d, cpu_F1d, fpst); |
| 1003 |
} else {
|
| 1004 |
gen_helper_vfp_muls(cpu_F1s, cpu_F0s, cpu_F1s, fpst); |
| 1005 |
} |
| 1006 |
tcg_temp_free_ptr(fpst); |
| 1007 |
} |
| 1008 |
|
| 1009 |
static inline void gen_vfp_F1_neg(int dp) |
| 1010 |
{
|
| 1011 |
/* Like gen_vfp_neg() but put result in F1 */
|
| 1012 |
if (dp) {
|
| 1013 |
gen_helper_vfp_negd(cpu_F1d, cpu_F0d); |
| 1014 |
} else {
|
| 1015 |
gen_helper_vfp_negs(cpu_F1s, cpu_F0s); |
| 1016 |
} |
| 1017 |
} |
| 1018 |
|
| 1019 |
static inline void gen_vfp_abs(int dp) |
| 1020 |
{
|
| 1021 |
if (dp)
|
| 1022 |
gen_helper_vfp_absd(cpu_F0d, cpu_F0d); |
| 1023 |
else
|
| 1024 |
gen_helper_vfp_abss(cpu_F0s, cpu_F0s); |
| 1025 |
} |
| 1026 |
|
| 1027 |
static inline void gen_vfp_neg(int dp) |
| 1028 |
{
|
| 1029 |
if (dp)
|
| 1030 |
gen_helper_vfp_negd(cpu_F0d, cpu_F0d); |
| 1031 |
else
|
| 1032 |
gen_helper_vfp_negs(cpu_F0s, cpu_F0s); |
| 1033 |
} |
| 1034 |
|
| 1035 |
static inline void gen_vfp_sqrt(int dp) |
| 1036 |
{
|
| 1037 |
if (dp)
|
| 1038 |
gen_helper_vfp_sqrtd(cpu_F0d, cpu_F0d, cpu_env); |
| 1039 |
else
|
| 1040 |
gen_helper_vfp_sqrts(cpu_F0s, cpu_F0s, cpu_env); |
| 1041 |
} |
| 1042 |
|
| 1043 |
static inline void gen_vfp_cmp(int dp) |
| 1044 |
{
|
| 1045 |
if (dp)
|
| 1046 |
gen_helper_vfp_cmpd(cpu_F0d, cpu_F1d, cpu_env); |
| 1047 |
else
|
| 1048 |
gen_helper_vfp_cmps(cpu_F0s, cpu_F1s, cpu_env); |
| 1049 |
} |
| 1050 |
|
| 1051 |
static inline void gen_vfp_cmpe(int dp) |
| 1052 |
{
|
| 1053 |
if (dp)
|
| 1054 |
gen_helper_vfp_cmped(cpu_F0d, cpu_F1d, cpu_env); |
| 1055 |
else
|
| 1056 |
gen_helper_vfp_cmpes(cpu_F0s, cpu_F1s, cpu_env); |
| 1057 |
} |
| 1058 |
|
| 1059 |
static inline void gen_vfp_F1_ld0(int dp) |
| 1060 |
{
|
| 1061 |
if (dp)
|
| 1062 |
tcg_gen_movi_i64(cpu_F1d, 0);
|
| 1063 |
else
|
| 1064 |
tcg_gen_movi_i32(cpu_F1s, 0);
|
| 1065 |
} |
| 1066 |
|
| 1067 |
#define VFP_GEN_ITOF(name) \
|
| 1068 |
static inline void gen_vfp_##name(int dp, int neon) \ |
| 1069 |
{ \
|
| 1070 |
TCGv_ptr statusptr = get_fpstatus_ptr(neon); \ |
| 1071 |
if (dp) { \
|
| 1072 |
gen_helper_vfp_##name##d(cpu_F0d, cpu_F0s, statusptr); \ |
| 1073 |
} else { \
|
| 1074 |
gen_helper_vfp_##name##s(cpu_F0s, cpu_F0s, statusptr); \ |
| 1075 |
} \ |
| 1076 |
tcg_temp_free_ptr(statusptr); \ |
| 1077 |
} |
| 1078 |
|
| 1079 |
VFP_GEN_ITOF(uito) |
| 1080 |
VFP_GEN_ITOF(sito) |
| 1081 |
#undef VFP_GEN_ITOF
|
| 1082 |
|
| 1083 |
#define VFP_GEN_FTOI(name) \
|
| 1084 |
static inline void gen_vfp_##name(int dp, int neon) \ |
| 1085 |
{ \
|
| 1086 |
TCGv_ptr statusptr = get_fpstatus_ptr(neon); \ |
| 1087 |
if (dp) { \
|
| 1088 |
gen_helper_vfp_##name##d(cpu_F0s, cpu_F0d, statusptr); \ |
| 1089 |
} else { \
|
| 1090 |
gen_helper_vfp_##name##s(cpu_F0s, cpu_F0s, statusptr); \ |
| 1091 |
} \ |
| 1092 |
tcg_temp_free_ptr(statusptr); \ |
| 1093 |
} |
| 1094 |
|
| 1095 |
VFP_GEN_FTOI(toui) |
| 1096 |
VFP_GEN_FTOI(touiz) |
| 1097 |
VFP_GEN_FTOI(tosi) |
| 1098 |
VFP_GEN_FTOI(tosiz) |
| 1099 |
#undef VFP_GEN_FTOI
|
| 1100 |
|
| 1101 |
#define VFP_GEN_FIX(name, round) \
|
| 1102 |
static inline void gen_vfp_##name(int dp, int shift, int neon) \ |
| 1103 |
{ \
|
| 1104 |
TCGv_i32 tmp_shift = tcg_const_i32(shift); \ |
| 1105 |
TCGv_ptr statusptr = get_fpstatus_ptr(neon); \ |
| 1106 |
if (dp) { \
|
| 1107 |
gen_helper_vfp_##name##d##round(cpu_F0d, cpu_F0d, tmp_shift, \ |
| 1108 |
statusptr); \ |
| 1109 |
} else { \
|
| 1110 |
gen_helper_vfp_##name##s##round(cpu_F0s, cpu_F0s, tmp_shift, \ |
| 1111 |
statusptr); \ |
| 1112 |
} \ |
| 1113 |
tcg_temp_free_i32(tmp_shift); \ |
| 1114 |
tcg_temp_free_ptr(statusptr); \ |
| 1115 |
} |
| 1116 |
VFP_GEN_FIX(tosh, _round_to_zero) |
| 1117 |
VFP_GEN_FIX(tosl, _round_to_zero) |
| 1118 |
VFP_GEN_FIX(touh, _round_to_zero) |
| 1119 |
VFP_GEN_FIX(toul, _round_to_zero) |
| 1120 |
VFP_GEN_FIX(shto, ) |
| 1121 |
VFP_GEN_FIX(slto, ) |
| 1122 |
VFP_GEN_FIX(uhto, ) |
| 1123 |
VFP_GEN_FIX(ulto, ) |
| 1124 |
#undef VFP_GEN_FIX
|
| 1125 |
|
| 1126 |
static inline void gen_vfp_ld(DisasContext *s, int dp, TCGv_i32 addr) |
| 1127 |
{
|
| 1128 |
if (dp) {
|
| 1129 |
gen_aa32_ld64(cpu_F0d, addr, IS_USER(s)); |
| 1130 |
} else {
|
| 1131 |
gen_aa32_ld32u(cpu_F0s, addr, IS_USER(s)); |
| 1132 |
} |
| 1133 |
} |
| 1134 |
|
| 1135 |
static inline void gen_vfp_st(DisasContext *s, int dp, TCGv_i32 addr) |
| 1136 |
{
|
| 1137 |
if (dp) {
|
| 1138 |
gen_aa32_st64(cpu_F0d, addr, IS_USER(s)); |
| 1139 |
} else {
|
| 1140 |
gen_aa32_st32(cpu_F0s, addr, IS_USER(s)); |
| 1141 |
} |
| 1142 |
} |
| 1143 |
|
| 1144 |
static inline long |
| 1145 |
vfp_reg_offset (int dp, int reg) |
| 1146 |
{
|
| 1147 |
if (dp)
|
| 1148 |
return offsetof(CPUARMState, vfp.regs[reg]);
|
| 1149 |
else if (reg & 1) { |
| 1150 |
return offsetof(CPUARMState, vfp.regs[reg >> 1]) |
| 1151 |
+ offsetof(CPU_DoubleU, l.upper); |
| 1152 |
} else {
|
| 1153 |
return offsetof(CPUARMState, vfp.regs[reg >> 1]) |
| 1154 |
+ offsetof(CPU_DoubleU, l.lower); |
| 1155 |
} |
| 1156 |
} |
| 1157 |
|
| 1158 |
/* Return the offset of a 32-bit piece of a NEON register.
|
| 1159 |
zero is the least significant end of the register. */
|
| 1160 |
static inline long |
| 1161 |
neon_reg_offset (int reg, int n) |
| 1162 |
{
|
| 1163 |
int sreg;
|
| 1164 |
sreg = reg * 2 + n;
|
| 1165 |
return vfp_reg_offset(0, sreg); |
| 1166 |
} |
| 1167 |
|
| 1168 |
static TCGv_i32 neon_load_reg(int reg, int pass) |
| 1169 |
{
|
| 1170 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 1171 |
tcg_gen_ld_i32(tmp, cpu_env, neon_reg_offset(reg, pass)); |
| 1172 |
return tmp;
|
| 1173 |
} |
| 1174 |
|
| 1175 |
static void neon_store_reg(int reg, int pass, TCGv_i32 var) |
| 1176 |
{
|
| 1177 |
tcg_gen_st_i32(var, cpu_env, neon_reg_offset(reg, pass)); |
| 1178 |
tcg_temp_free_i32(var); |
| 1179 |
} |
| 1180 |
|
| 1181 |
static inline void neon_load_reg64(TCGv_i64 var, int reg) |
| 1182 |
{
|
| 1183 |
tcg_gen_ld_i64(var, cpu_env, vfp_reg_offset(1, reg));
|
| 1184 |
} |
| 1185 |
|
| 1186 |
static inline void neon_store_reg64(TCGv_i64 var, int reg) |
| 1187 |
{
|
| 1188 |
tcg_gen_st_i64(var, cpu_env, vfp_reg_offset(1, reg));
|
| 1189 |
} |
| 1190 |
|
| 1191 |
#define tcg_gen_ld_f32 tcg_gen_ld_i32
|
| 1192 |
#define tcg_gen_ld_f64 tcg_gen_ld_i64
|
| 1193 |
#define tcg_gen_st_f32 tcg_gen_st_i32
|
| 1194 |
#define tcg_gen_st_f64 tcg_gen_st_i64
|
| 1195 |
|
| 1196 |
static inline void gen_mov_F0_vreg(int dp, int reg) |
| 1197 |
{
|
| 1198 |
if (dp)
|
| 1199 |
tcg_gen_ld_f64(cpu_F0d, cpu_env, vfp_reg_offset(dp, reg)); |
| 1200 |
else
|
| 1201 |
tcg_gen_ld_f32(cpu_F0s, cpu_env, vfp_reg_offset(dp, reg)); |
| 1202 |
} |
| 1203 |
|
| 1204 |
static inline void gen_mov_F1_vreg(int dp, int reg) |
| 1205 |
{
|
| 1206 |
if (dp)
|
| 1207 |
tcg_gen_ld_f64(cpu_F1d, cpu_env, vfp_reg_offset(dp, reg)); |
| 1208 |
else
|
| 1209 |
tcg_gen_ld_f32(cpu_F1s, cpu_env, vfp_reg_offset(dp, reg)); |
| 1210 |
} |
| 1211 |
|
| 1212 |
static inline void gen_mov_vreg_F0(int dp, int reg) |
| 1213 |
{
|
| 1214 |
if (dp)
|
| 1215 |
tcg_gen_st_f64(cpu_F0d, cpu_env, vfp_reg_offset(dp, reg)); |
| 1216 |
else
|
| 1217 |
tcg_gen_st_f32(cpu_F0s, cpu_env, vfp_reg_offset(dp, reg)); |
| 1218 |
} |
| 1219 |
|
| 1220 |
#define ARM_CP_RW_BIT (1 << 20) |
| 1221 |
|
| 1222 |
static inline void iwmmxt_load_reg(TCGv_i64 var, int reg) |
| 1223 |
{
|
| 1224 |
tcg_gen_ld_i64(var, cpu_env, offsetof(CPUARMState, iwmmxt.regs[reg])); |
| 1225 |
} |
| 1226 |
|
| 1227 |
static inline void iwmmxt_store_reg(TCGv_i64 var, int reg) |
| 1228 |
{
|
| 1229 |
tcg_gen_st_i64(var, cpu_env, offsetof(CPUARMState, iwmmxt.regs[reg])); |
| 1230 |
} |
| 1231 |
|
| 1232 |
static inline TCGv_i32 iwmmxt_load_creg(int reg) |
| 1233 |
{
|
| 1234 |
TCGv_i32 var = tcg_temp_new_i32(); |
| 1235 |
tcg_gen_ld_i32(var, cpu_env, offsetof(CPUARMState, iwmmxt.cregs[reg])); |
| 1236 |
return var;
|
| 1237 |
} |
| 1238 |
|
| 1239 |
static inline void iwmmxt_store_creg(int reg, TCGv_i32 var) |
| 1240 |
{
|
| 1241 |
tcg_gen_st_i32(var, cpu_env, offsetof(CPUARMState, iwmmxt.cregs[reg])); |
| 1242 |
tcg_temp_free_i32(var); |
| 1243 |
} |
| 1244 |
|
| 1245 |
static inline void gen_op_iwmmxt_movq_wRn_M0(int rn) |
| 1246 |
{
|
| 1247 |
iwmmxt_store_reg(cpu_M0, rn); |
| 1248 |
} |
| 1249 |
|
| 1250 |
static inline void gen_op_iwmmxt_movq_M0_wRn(int rn) |
| 1251 |
{
|
| 1252 |
iwmmxt_load_reg(cpu_M0, rn); |
| 1253 |
} |
| 1254 |
|
| 1255 |
static inline void gen_op_iwmmxt_orq_M0_wRn(int rn) |
| 1256 |
{
|
| 1257 |
iwmmxt_load_reg(cpu_V1, rn); |
| 1258 |
tcg_gen_or_i64(cpu_M0, cpu_M0, cpu_V1); |
| 1259 |
} |
| 1260 |
|
| 1261 |
static inline void gen_op_iwmmxt_andq_M0_wRn(int rn) |
| 1262 |
{
|
| 1263 |
iwmmxt_load_reg(cpu_V1, rn); |
| 1264 |
tcg_gen_and_i64(cpu_M0, cpu_M0, cpu_V1); |
| 1265 |
} |
| 1266 |
|
| 1267 |
static inline void gen_op_iwmmxt_xorq_M0_wRn(int rn) |
| 1268 |
{
|
| 1269 |
iwmmxt_load_reg(cpu_V1, rn); |
| 1270 |
tcg_gen_xor_i64(cpu_M0, cpu_M0, cpu_V1); |
| 1271 |
} |
| 1272 |
|
| 1273 |
#define IWMMXT_OP(name) \
|
| 1274 |
static inline void gen_op_iwmmxt_##name##_M0_wRn(int rn) \ |
| 1275 |
{ \
|
| 1276 |
iwmmxt_load_reg(cpu_V1, rn); \ |
| 1277 |
gen_helper_iwmmxt_##name(cpu_M0, cpu_M0, cpu_V1); \ |
| 1278 |
} |
| 1279 |
|
| 1280 |
#define IWMMXT_OP_ENV(name) \
|
| 1281 |
static inline void gen_op_iwmmxt_##name##_M0_wRn(int rn) \ |
| 1282 |
{ \
|
| 1283 |
iwmmxt_load_reg(cpu_V1, rn); \ |
| 1284 |
gen_helper_iwmmxt_##name(cpu_M0, cpu_env, cpu_M0, cpu_V1); \ |
| 1285 |
} |
| 1286 |
|
| 1287 |
#define IWMMXT_OP_ENV_SIZE(name) \
|
| 1288 |
IWMMXT_OP_ENV(name##b) \ |
| 1289 |
IWMMXT_OP_ENV(name##w) \ |
| 1290 |
IWMMXT_OP_ENV(name##l) |
| 1291 |
|
| 1292 |
#define IWMMXT_OP_ENV1(name) \
|
| 1293 |
static inline void gen_op_iwmmxt_##name##_M0(void) \ |
| 1294 |
{ \
|
| 1295 |
gen_helper_iwmmxt_##name(cpu_M0, cpu_env, cpu_M0); \ |
| 1296 |
} |
| 1297 |
|
| 1298 |
IWMMXT_OP(maddsq) |
| 1299 |
IWMMXT_OP(madduq) |
| 1300 |
IWMMXT_OP(sadb) |
| 1301 |
IWMMXT_OP(sadw) |
| 1302 |
IWMMXT_OP(mulslw) |
| 1303 |
IWMMXT_OP(mulshw) |
| 1304 |
IWMMXT_OP(mululw) |
| 1305 |
IWMMXT_OP(muluhw) |
| 1306 |
IWMMXT_OP(macsw) |
| 1307 |
IWMMXT_OP(macuw) |
| 1308 |
|
| 1309 |
IWMMXT_OP_ENV_SIZE(unpackl) |
| 1310 |
IWMMXT_OP_ENV_SIZE(unpackh) |
| 1311 |
|
| 1312 |
IWMMXT_OP_ENV1(unpacklub) |
| 1313 |
IWMMXT_OP_ENV1(unpackluw) |
| 1314 |
IWMMXT_OP_ENV1(unpacklul) |
| 1315 |
IWMMXT_OP_ENV1(unpackhub) |
| 1316 |
IWMMXT_OP_ENV1(unpackhuw) |
| 1317 |
IWMMXT_OP_ENV1(unpackhul) |
| 1318 |
IWMMXT_OP_ENV1(unpacklsb) |
| 1319 |
IWMMXT_OP_ENV1(unpacklsw) |
| 1320 |
IWMMXT_OP_ENV1(unpacklsl) |
| 1321 |
IWMMXT_OP_ENV1(unpackhsb) |
| 1322 |
IWMMXT_OP_ENV1(unpackhsw) |
| 1323 |
IWMMXT_OP_ENV1(unpackhsl) |
| 1324 |
|
| 1325 |
IWMMXT_OP_ENV_SIZE(cmpeq) |
| 1326 |
IWMMXT_OP_ENV_SIZE(cmpgtu) |
| 1327 |
IWMMXT_OP_ENV_SIZE(cmpgts) |
| 1328 |
|
| 1329 |
IWMMXT_OP_ENV_SIZE(mins) |
| 1330 |
IWMMXT_OP_ENV_SIZE(minu) |
| 1331 |
IWMMXT_OP_ENV_SIZE(maxs) |
| 1332 |
IWMMXT_OP_ENV_SIZE(maxu) |
| 1333 |
|
| 1334 |
IWMMXT_OP_ENV_SIZE(subn) |
| 1335 |
IWMMXT_OP_ENV_SIZE(addn) |
| 1336 |
IWMMXT_OP_ENV_SIZE(subu) |
| 1337 |
IWMMXT_OP_ENV_SIZE(addu) |
| 1338 |
IWMMXT_OP_ENV_SIZE(subs) |
| 1339 |
IWMMXT_OP_ENV_SIZE(adds) |
| 1340 |
|
| 1341 |
IWMMXT_OP_ENV(avgb0) |
| 1342 |
IWMMXT_OP_ENV(avgb1) |
| 1343 |
IWMMXT_OP_ENV(avgw0) |
| 1344 |
IWMMXT_OP_ENV(avgw1) |
| 1345 |
|
| 1346 |
IWMMXT_OP(msadb) |
| 1347 |
|
| 1348 |
IWMMXT_OP_ENV(packuw) |
| 1349 |
IWMMXT_OP_ENV(packul) |
| 1350 |
IWMMXT_OP_ENV(packuq) |
| 1351 |
IWMMXT_OP_ENV(packsw) |
| 1352 |
IWMMXT_OP_ENV(packsl) |
| 1353 |
IWMMXT_OP_ENV(packsq) |
| 1354 |
|
| 1355 |
static void gen_op_iwmmxt_set_mup(void) |
| 1356 |
{
|
| 1357 |
TCGv_i32 tmp; |
| 1358 |
tmp = load_cpu_field(iwmmxt.cregs[ARM_IWMMXT_wCon]); |
| 1359 |
tcg_gen_ori_i32(tmp, tmp, 2);
|
| 1360 |
store_cpu_field(tmp, iwmmxt.cregs[ARM_IWMMXT_wCon]); |
| 1361 |
} |
| 1362 |
|
| 1363 |
static void gen_op_iwmmxt_set_cup(void) |
| 1364 |
{
|
| 1365 |
TCGv_i32 tmp; |
| 1366 |
tmp = load_cpu_field(iwmmxt.cregs[ARM_IWMMXT_wCon]); |
| 1367 |
tcg_gen_ori_i32(tmp, tmp, 1);
|
| 1368 |
store_cpu_field(tmp, iwmmxt.cregs[ARM_IWMMXT_wCon]); |
| 1369 |
} |
| 1370 |
|
| 1371 |
static void gen_op_iwmmxt_setpsr_nz(void) |
| 1372 |
{
|
| 1373 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 1374 |
gen_helper_iwmmxt_setpsr_nz(tmp, cpu_M0); |
| 1375 |
store_cpu_field(tmp, iwmmxt.cregs[ARM_IWMMXT_wCASF]); |
| 1376 |
} |
| 1377 |
|
| 1378 |
static inline void gen_op_iwmmxt_addl_M0_wRn(int rn) |
| 1379 |
{
|
| 1380 |
iwmmxt_load_reg(cpu_V1, rn); |
| 1381 |
tcg_gen_ext32u_i64(cpu_V1, cpu_V1); |
| 1382 |
tcg_gen_add_i64(cpu_M0, cpu_M0, cpu_V1); |
| 1383 |
} |
| 1384 |
|
| 1385 |
static inline int gen_iwmmxt_address(DisasContext *s, uint32_t insn, |
| 1386 |
TCGv_i32 dest) |
| 1387 |
{
|
| 1388 |
int rd;
|
| 1389 |
uint32_t offset; |
| 1390 |
TCGv_i32 tmp; |
| 1391 |
|
| 1392 |
rd = (insn >> 16) & 0xf; |
| 1393 |
tmp = load_reg(s, rd); |
| 1394 |
|
| 1395 |
offset = (insn & 0xff) << ((insn >> 7) & 2); |
| 1396 |
if (insn & (1 << 24)) { |
| 1397 |
/* Pre indexed */
|
| 1398 |
if (insn & (1 << 23)) |
| 1399 |
tcg_gen_addi_i32(tmp, tmp, offset); |
| 1400 |
else
|
| 1401 |
tcg_gen_addi_i32(tmp, tmp, -offset); |
| 1402 |
tcg_gen_mov_i32(dest, tmp); |
| 1403 |
if (insn & (1 << 21)) |
| 1404 |
store_reg(s, rd, tmp); |
| 1405 |
else
|
| 1406 |
tcg_temp_free_i32(tmp); |
| 1407 |
} else if (insn & (1 << 21)) { |
| 1408 |
/* Post indexed */
|
| 1409 |
tcg_gen_mov_i32(dest, tmp); |
| 1410 |
if (insn & (1 << 23)) |
| 1411 |
tcg_gen_addi_i32(tmp, tmp, offset); |
| 1412 |
else
|
| 1413 |
tcg_gen_addi_i32(tmp, tmp, -offset); |
| 1414 |
store_reg(s, rd, tmp); |
| 1415 |
} else if (!(insn & (1 << 23))) |
| 1416 |
return 1; |
| 1417 |
return 0; |
| 1418 |
} |
| 1419 |
|
| 1420 |
static inline int gen_iwmmxt_shift(uint32_t insn, uint32_t mask, TCGv_i32 dest) |
| 1421 |
{
|
| 1422 |
int rd = (insn >> 0) & 0xf; |
| 1423 |
TCGv_i32 tmp; |
| 1424 |
|
| 1425 |
if (insn & (1 << 8)) { |
| 1426 |
if (rd < ARM_IWMMXT_wCGR0 || rd > ARM_IWMMXT_wCGR3) {
|
| 1427 |
return 1; |
| 1428 |
} else {
|
| 1429 |
tmp = iwmmxt_load_creg(rd); |
| 1430 |
} |
| 1431 |
} else {
|
| 1432 |
tmp = tcg_temp_new_i32(); |
| 1433 |
iwmmxt_load_reg(cpu_V0, rd); |
| 1434 |
tcg_gen_trunc_i64_i32(tmp, cpu_V0); |
| 1435 |
} |
| 1436 |
tcg_gen_andi_i32(tmp, tmp, mask); |
| 1437 |
tcg_gen_mov_i32(dest, tmp); |
| 1438 |
tcg_temp_free_i32(tmp); |
| 1439 |
return 0; |
| 1440 |
} |
| 1441 |
|
| 1442 |
/* Disassemble an iwMMXt instruction. Returns nonzero if an error occurred
|
| 1443 |
(ie. an undefined instruction). */
|
| 1444 |
static int disas_iwmmxt_insn(CPUARMState *env, DisasContext *s, uint32_t insn) |
| 1445 |
{
|
| 1446 |
int rd, wrd;
|
| 1447 |
int rdhi, rdlo, rd0, rd1, i;
|
| 1448 |
TCGv_i32 addr; |
| 1449 |
TCGv_i32 tmp, tmp2, tmp3; |
| 1450 |
|
| 1451 |
if ((insn & 0x0e000e00) == 0x0c000000) { |
| 1452 |
if ((insn & 0x0fe00ff0) == 0x0c400000) { |
| 1453 |
wrd = insn & 0xf;
|
| 1454 |
rdlo = (insn >> 12) & 0xf; |
| 1455 |
rdhi = (insn >> 16) & 0xf; |
| 1456 |
if (insn & ARM_CP_RW_BIT) { /* TMRRC */ |
| 1457 |
iwmmxt_load_reg(cpu_V0, wrd); |
| 1458 |
tcg_gen_trunc_i64_i32(cpu_R[rdlo], cpu_V0); |
| 1459 |
tcg_gen_shri_i64(cpu_V0, cpu_V0, 32);
|
| 1460 |
tcg_gen_trunc_i64_i32(cpu_R[rdhi], cpu_V0); |
| 1461 |
} else { /* TMCRR */ |
| 1462 |
tcg_gen_concat_i32_i64(cpu_V0, cpu_R[rdlo], cpu_R[rdhi]); |
| 1463 |
iwmmxt_store_reg(cpu_V0, wrd); |
| 1464 |
gen_op_iwmmxt_set_mup(); |
| 1465 |
} |
| 1466 |
return 0; |
| 1467 |
} |
| 1468 |
|
| 1469 |
wrd = (insn >> 12) & 0xf; |
| 1470 |
addr = tcg_temp_new_i32(); |
| 1471 |
if (gen_iwmmxt_address(s, insn, addr)) {
|
| 1472 |
tcg_temp_free_i32(addr); |
| 1473 |
return 1; |
| 1474 |
} |
| 1475 |
if (insn & ARM_CP_RW_BIT) {
|
| 1476 |
if ((insn >> 28) == 0xf) { /* WLDRW wCx */ |
| 1477 |
tmp = tcg_temp_new_i32(); |
| 1478 |
gen_aa32_ld32u(tmp, addr, IS_USER(s)); |
| 1479 |
iwmmxt_store_creg(wrd, tmp); |
| 1480 |
} else {
|
| 1481 |
i = 1;
|
| 1482 |
if (insn & (1 << 8)) { |
| 1483 |
if (insn & (1 << 22)) { /* WLDRD */ |
| 1484 |
gen_aa32_ld64(cpu_M0, addr, IS_USER(s)); |
| 1485 |
i = 0;
|
| 1486 |
} else { /* WLDRW wRd */ |
| 1487 |
tmp = tcg_temp_new_i32(); |
| 1488 |
gen_aa32_ld32u(tmp, addr, IS_USER(s)); |
| 1489 |
} |
| 1490 |
} else {
|
| 1491 |
tmp = tcg_temp_new_i32(); |
| 1492 |
if (insn & (1 << 22)) { /* WLDRH */ |
| 1493 |
gen_aa32_ld16u(tmp, addr, IS_USER(s)); |
| 1494 |
} else { /* WLDRB */ |
| 1495 |
gen_aa32_ld8u(tmp, addr, IS_USER(s)); |
| 1496 |
} |
| 1497 |
} |
| 1498 |
if (i) {
|
| 1499 |
tcg_gen_extu_i32_i64(cpu_M0, tmp); |
| 1500 |
tcg_temp_free_i32(tmp); |
| 1501 |
} |
| 1502 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 1503 |
} |
| 1504 |
} else {
|
| 1505 |
if ((insn >> 28) == 0xf) { /* WSTRW wCx */ |
| 1506 |
tmp = iwmmxt_load_creg(wrd); |
| 1507 |
gen_aa32_st32(tmp, addr, IS_USER(s)); |
| 1508 |
} else {
|
| 1509 |
gen_op_iwmmxt_movq_M0_wRn(wrd); |
| 1510 |
tmp = tcg_temp_new_i32(); |
| 1511 |
if (insn & (1 << 8)) { |
| 1512 |
if (insn & (1 << 22)) { /* WSTRD */ |
| 1513 |
gen_aa32_st64(cpu_M0, addr, IS_USER(s)); |
| 1514 |
} else { /* WSTRW wRd */ |
| 1515 |
tcg_gen_trunc_i64_i32(tmp, cpu_M0); |
| 1516 |
gen_aa32_st32(tmp, addr, IS_USER(s)); |
| 1517 |
} |
| 1518 |
} else {
|
| 1519 |
if (insn & (1 << 22)) { /* WSTRH */ |
| 1520 |
tcg_gen_trunc_i64_i32(tmp, cpu_M0); |
| 1521 |
gen_aa32_st16(tmp, addr, IS_USER(s)); |
| 1522 |
} else { /* WSTRB */ |
| 1523 |
tcg_gen_trunc_i64_i32(tmp, cpu_M0); |
| 1524 |
gen_aa32_st8(tmp, addr, IS_USER(s)); |
| 1525 |
} |
| 1526 |
} |
| 1527 |
} |
| 1528 |
tcg_temp_free_i32(tmp); |
| 1529 |
} |
| 1530 |
tcg_temp_free_i32(addr); |
| 1531 |
return 0; |
| 1532 |
} |
| 1533 |
|
| 1534 |
if ((insn & 0x0f000000) != 0x0e000000) |
| 1535 |
return 1; |
| 1536 |
|
| 1537 |
switch (((insn >> 12) & 0xf00) | ((insn >> 4) & 0xff)) { |
| 1538 |
case 0x000: /* WOR */ |
| 1539 |
wrd = (insn >> 12) & 0xf; |
| 1540 |
rd0 = (insn >> 0) & 0xf; |
| 1541 |
rd1 = (insn >> 16) & 0xf; |
| 1542 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 1543 |
gen_op_iwmmxt_orq_M0_wRn(rd1); |
| 1544 |
gen_op_iwmmxt_setpsr_nz(); |
| 1545 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 1546 |
gen_op_iwmmxt_set_mup(); |
| 1547 |
gen_op_iwmmxt_set_cup(); |
| 1548 |
break;
|
| 1549 |
case 0x011: /* TMCR */ |
| 1550 |
if (insn & 0xf) |
| 1551 |
return 1; |
| 1552 |
rd = (insn >> 12) & 0xf; |
| 1553 |
wrd = (insn >> 16) & 0xf; |
| 1554 |
switch (wrd) {
|
| 1555 |
case ARM_IWMMXT_wCID:
|
| 1556 |
case ARM_IWMMXT_wCASF:
|
| 1557 |
break;
|
| 1558 |
case ARM_IWMMXT_wCon:
|
| 1559 |
gen_op_iwmmxt_set_cup(); |
| 1560 |
/* Fall through. */
|
| 1561 |
case ARM_IWMMXT_wCSSF:
|
| 1562 |
tmp = iwmmxt_load_creg(wrd); |
| 1563 |
tmp2 = load_reg(s, rd); |
| 1564 |
tcg_gen_andc_i32(tmp, tmp, tmp2); |
| 1565 |
tcg_temp_free_i32(tmp2); |
| 1566 |
iwmmxt_store_creg(wrd, tmp); |
| 1567 |
break;
|
| 1568 |
case ARM_IWMMXT_wCGR0:
|
| 1569 |
case ARM_IWMMXT_wCGR1:
|
| 1570 |
case ARM_IWMMXT_wCGR2:
|
| 1571 |
case ARM_IWMMXT_wCGR3:
|
| 1572 |
gen_op_iwmmxt_set_cup(); |
| 1573 |
tmp = load_reg(s, rd); |
| 1574 |
iwmmxt_store_creg(wrd, tmp); |
| 1575 |
break;
|
| 1576 |
default:
|
| 1577 |
return 1; |
| 1578 |
} |
| 1579 |
break;
|
| 1580 |
case 0x100: /* WXOR */ |
| 1581 |
wrd = (insn >> 12) & 0xf; |
| 1582 |
rd0 = (insn >> 0) & 0xf; |
| 1583 |
rd1 = (insn >> 16) & 0xf; |
| 1584 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 1585 |
gen_op_iwmmxt_xorq_M0_wRn(rd1); |
| 1586 |
gen_op_iwmmxt_setpsr_nz(); |
| 1587 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 1588 |
gen_op_iwmmxt_set_mup(); |
| 1589 |
gen_op_iwmmxt_set_cup(); |
| 1590 |
break;
|
| 1591 |
case 0x111: /* TMRC */ |
| 1592 |
if (insn & 0xf) |
| 1593 |
return 1; |
| 1594 |
rd = (insn >> 12) & 0xf; |
| 1595 |
wrd = (insn >> 16) & 0xf; |
| 1596 |
tmp = iwmmxt_load_creg(wrd); |
| 1597 |
store_reg(s, rd, tmp); |
| 1598 |
break;
|
| 1599 |
case 0x300: /* WANDN */ |
| 1600 |
wrd = (insn >> 12) & 0xf; |
| 1601 |
rd0 = (insn >> 0) & 0xf; |
| 1602 |
rd1 = (insn >> 16) & 0xf; |
| 1603 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 1604 |
tcg_gen_neg_i64(cpu_M0, cpu_M0); |
| 1605 |
gen_op_iwmmxt_andq_M0_wRn(rd1); |
| 1606 |
gen_op_iwmmxt_setpsr_nz(); |
| 1607 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 1608 |
gen_op_iwmmxt_set_mup(); |
| 1609 |
gen_op_iwmmxt_set_cup(); |
| 1610 |
break;
|
| 1611 |
case 0x200: /* WAND */ |
| 1612 |
wrd = (insn >> 12) & 0xf; |
| 1613 |
rd0 = (insn >> 0) & 0xf; |
| 1614 |
rd1 = (insn >> 16) & 0xf; |
| 1615 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 1616 |
gen_op_iwmmxt_andq_M0_wRn(rd1); |
| 1617 |
gen_op_iwmmxt_setpsr_nz(); |
| 1618 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 1619 |
gen_op_iwmmxt_set_mup(); |
| 1620 |
gen_op_iwmmxt_set_cup(); |
| 1621 |
break;
|
| 1622 |
case 0x810: case 0xa10: /* WMADD */ |
| 1623 |
wrd = (insn >> 12) & 0xf; |
| 1624 |
rd0 = (insn >> 0) & 0xf; |
| 1625 |
rd1 = (insn >> 16) & 0xf; |
| 1626 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 1627 |
if (insn & (1 << 21)) |
| 1628 |
gen_op_iwmmxt_maddsq_M0_wRn(rd1); |
| 1629 |
else
|
| 1630 |
gen_op_iwmmxt_madduq_M0_wRn(rd1); |
| 1631 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 1632 |
gen_op_iwmmxt_set_mup(); |
| 1633 |
break;
|
| 1634 |
case 0x10e: case 0x50e: case 0x90e: case 0xd0e: /* WUNPCKIL */ |
| 1635 |
wrd = (insn >> 12) & 0xf; |
| 1636 |
rd0 = (insn >> 16) & 0xf; |
| 1637 |
rd1 = (insn >> 0) & 0xf; |
| 1638 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 1639 |
switch ((insn >> 22) & 3) { |
| 1640 |
case 0: |
| 1641 |
gen_op_iwmmxt_unpacklb_M0_wRn(rd1); |
| 1642 |
break;
|
| 1643 |
case 1: |
| 1644 |
gen_op_iwmmxt_unpacklw_M0_wRn(rd1); |
| 1645 |
break;
|
| 1646 |
case 2: |
| 1647 |
gen_op_iwmmxt_unpackll_M0_wRn(rd1); |
| 1648 |
break;
|
| 1649 |
case 3: |
| 1650 |
return 1; |
| 1651 |
} |
| 1652 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 1653 |
gen_op_iwmmxt_set_mup(); |
| 1654 |
gen_op_iwmmxt_set_cup(); |
| 1655 |
break;
|
| 1656 |
case 0x10c: case 0x50c: case 0x90c: case 0xd0c: /* WUNPCKIH */ |
| 1657 |
wrd = (insn >> 12) & 0xf; |
| 1658 |
rd0 = (insn >> 16) & 0xf; |
| 1659 |
rd1 = (insn >> 0) & 0xf; |
| 1660 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 1661 |
switch ((insn >> 22) & 3) { |
| 1662 |
case 0: |
| 1663 |
gen_op_iwmmxt_unpackhb_M0_wRn(rd1); |
| 1664 |
break;
|
| 1665 |
case 1: |
| 1666 |
gen_op_iwmmxt_unpackhw_M0_wRn(rd1); |
| 1667 |
break;
|
| 1668 |
case 2: |
| 1669 |
gen_op_iwmmxt_unpackhl_M0_wRn(rd1); |
| 1670 |
break;
|
| 1671 |
case 3: |
| 1672 |
return 1; |
| 1673 |
} |
| 1674 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 1675 |
gen_op_iwmmxt_set_mup(); |
| 1676 |
gen_op_iwmmxt_set_cup(); |
| 1677 |
break;
|
| 1678 |
case 0x012: case 0x112: case 0x412: case 0x512: /* WSAD */ |
| 1679 |
wrd = (insn >> 12) & 0xf; |
| 1680 |
rd0 = (insn >> 16) & 0xf; |
| 1681 |
rd1 = (insn >> 0) & 0xf; |
| 1682 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 1683 |
if (insn & (1 << 22)) |
| 1684 |
gen_op_iwmmxt_sadw_M0_wRn(rd1); |
| 1685 |
else
|
| 1686 |
gen_op_iwmmxt_sadb_M0_wRn(rd1); |
| 1687 |
if (!(insn & (1 << 20))) |
| 1688 |
gen_op_iwmmxt_addl_M0_wRn(wrd); |
| 1689 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 1690 |
gen_op_iwmmxt_set_mup(); |
| 1691 |
break;
|
| 1692 |
case 0x010: case 0x110: case 0x210: case 0x310: /* WMUL */ |
| 1693 |
wrd = (insn >> 12) & 0xf; |
| 1694 |
rd0 = (insn >> 16) & 0xf; |
| 1695 |
rd1 = (insn >> 0) & 0xf; |
| 1696 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 1697 |
if (insn & (1 << 21)) { |
| 1698 |
if (insn & (1 << 20)) |
| 1699 |
gen_op_iwmmxt_mulshw_M0_wRn(rd1); |
| 1700 |
else
|
| 1701 |
gen_op_iwmmxt_mulslw_M0_wRn(rd1); |
| 1702 |
} else {
|
| 1703 |
if (insn & (1 << 20)) |
| 1704 |
gen_op_iwmmxt_muluhw_M0_wRn(rd1); |
| 1705 |
else
|
| 1706 |
gen_op_iwmmxt_mululw_M0_wRn(rd1); |
| 1707 |
} |
| 1708 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 1709 |
gen_op_iwmmxt_set_mup(); |
| 1710 |
break;
|
| 1711 |
case 0x410: case 0x510: case 0x610: case 0x710: /* WMAC */ |
| 1712 |
wrd = (insn >> 12) & 0xf; |
| 1713 |
rd0 = (insn >> 16) & 0xf; |
| 1714 |
rd1 = (insn >> 0) & 0xf; |
| 1715 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 1716 |
if (insn & (1 << 21)) |
| 1717 |
gen_op_iwmmxt_macsw_M0_wRn(rd1); |
| 1718 |
else
|
| 1719 |
gen_op_iwmmxt_macuw_M0_wRn(rd1); |
| 1720 |
if (!(insn & (1 << 20))) { |
| 1721 |
iwmmxt_load_reg(cpu_V1, wrd); |
| 1722 |
tcg_gen_add_i64(cpu_M0, cpu_M0, cpu_V1); |
| 1723 |
} |
| 1724 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 1725 |
gen_op_iwmmxt_set_mup(); |
| 1726 |
break;
|
| 1727 |
case 0x006: case 0x406: case 0x806: case 0xc06: /* WCMPEQ */ |
| 1728 |
wrd = (insn >> 12) & 0xf; |
| 1729 |
rd0 = (insn >> 16) & 0xf; |
| 1730 |
rd1 = (insn >> 0) & 0xf; |
| 1731 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 1732 |
switch ((insn >> 22) & 3) { |
| 1733 |
case 0: |
| 1734 |
gen_op_iwmmxt_cmpeqb_M0_wRn(rd1); |
| 1735 |
break;
|
| 1736 |
case 1: |
| 1737 |
gen_op_iwmmxt_cmpeqw_M0_wRn(rd1); |
| 1738 |
break;
|
| 1739 |
case 2: |
| 1740 |
gen_op_iwmmxt_cmpeql_M0_wRn(rd1); |
| 1741 |
break;
|
| 1742 |
case 3: |
| 1743 |
return 1; |
| 1744 |
} |
| 1745 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 1746 |
gen_op_iwmmxt_set_mup(); |
| 1747 |
gen_op_iwmmxt_set_cup(); |
| 1748 |
break;
|
| 1749 |
case 0x800: case 0x900: case 0xc00: case 0xd00: /* WAVG2 */ |
| 1750 |
wrd = (insn >> 12) & 0xf; |
| 1751 |
rd0 = (insn >> 16) & 0xf; |
| 1752 |
rd1 = (insn >> 0) & 0xf; |
| 1753 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 1754 |
if (insn & (1 << 22)) { |
| 1755 |
if (insn & (1 << 20)) |
| 1756 |
gen_op_iwmmxt_avgw1_M0_wRn(rd1); |
| 1757 |
else
|
| 1758 |
gen_op_iwmmxt_avgw0_M0_wRn(rd1); |
| 1759 |
} else {
|
| 1760 |
if (insn & (1 << 20)) |
| 1761 |
gen_op_iwmmxt_avgb1_M0_wRn(rd1); |
| 1762 |
else
|
| 1763 |
gen_op_iwmmxt_avgb0_M0_wRn(rd1); |
| 1764 |
} |
| 1765 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 1766 |
gen_op_iwmmxt_set_mup(); |
| 1767 |
gen_op_iwmmxt_set_cup(); |
| 1768 |
break;
|
| 1769 |
case 0x802: case 0x902: case 0xa02: case 0xb02: /* WALIGNR */ |
| 1770 |
wrd = (insn >> 12) & 0xf; |
| 1771 |
rd0 = (insn >> 16) & 0xf; |
| 1772 |
rd1 = (insn >> 0) & 0xf; |
| 1773 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 1774 |
tmp = iwmmxt_load_creg(ARM_IWMMXT_wCGR0 + ((insn >> 20) & 3)); |
| 1775 |
tcg_gen_andi_i32(tmp, tmp, 7);
|
| 1776 |
iwmmxt_load_reg(cpu_V1, rd1); |
| 1777 |
gen_helper_iwmmxt_align(cpu_M0, cpu_M0, cpu_V1, tmp); |
| 1778 |
tcg_temp_free_i32(tmp); |
| 1779 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 1780 |
gen_op_iwmmxt_set_mup(); |
| 1781 |
break;
|
| 1782 |
case 0x601: case 0x605: case 0x609: case 0x60d: /* TINSR */ |
| 1783 |
if (((insn >> 6) & 3) == 3) |
| 1784 |
return 1; |
| 1785 |
rd = (insn >> 12) & 0xf; |
| 1786 |
wrd = (insn >> 16) & 0xf; |
| 1787 |
tmp = load_reg(s, rd); |
| 1788 |
gen_op_iwmmxt_movq_M0_wRn(wrd); |
| 1789 |
switch ((insn >> 6) & 3) { |
| 1790 |
case 0: |
| 1791 |
tmp2 = tcg_const_i32(0xff);
|
| 1792 |
tmp3 = tcg_const_i32((insn & 7) << 3); |
| 1793 |
break;
|
| 1794 |
case 1: |
| 1795 |
tmp2 = tcg_const_i32(0xffff);
|
| 1796 |
tmp3 = tcg_const_i32((insn & 3) << 4); |
| 1797 |
break;
|
| 1798 |
case 2: |
| 1799 |
tmp2 = tcg_const_i32(0xffffffff);
|
| 1800 |
tmp3 = tcg_const_i32((insn & 1) << 5); |
| 1801 |
break;
|
| 1802 |
default:
|
| 1803 |
TCGV_UNUSED_I32(tmp2); |
| 1804 |
TCGV_UNUSED_I32(tmp3); |
| 1805 |
} |
| 1806 |
gen_helper_iwmmxt_insr(cpu_M0, cpu_M0, tmp, tmp2, tmp3); |
| 1807 |
tcg_temp_free_i32(tmp3); |
| 1808 |
tcg_temp_free_i32(tmp2); |
| 1809 |
tcg_temp_free_i32(tmp); |
| 1810 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 1811 |
gen_op_iwmmxt_set_mup(); |
| 1812 |
break;
|
| 1813 |
case 0x107: case 0x507: case 0x907: case 0xd07: /* TEXTRM */ |
| 1814 |
rd = (insn >> 12) & 0xf; |
| 1815 |
wrd = (insn >> 16) & 0xf; |
| 1816 |
if (rd == 15 || ((insn >> 22) & 3) == 3) |
| 1817 |
return 1; |
| 1818 |
gen_op_iwmmxt_movq_M0_wRn(wrd); |
| 1819 |
tmp = tcg_temp_new_i32(); |
| 1820 |
switch ((insn >> 22) & 3) { |
| 1821 |
case 0: |
| 1822 |
tcg_gen_shri_i64(cpu_M0, cpu_M0, (insn & 7) << 3); |
| 1823 |
tcg_gen_trunc_i64_i32(tmp, cpu_M0); |
| 1824 |
if (insn & 8) { |
| 1825 |
tcg_gen_ext8s_i32(tmp, tmp); |
| 1826 |
} else {
|
| 1827 |
tcg_gen_andi_i32(tmp, tmp, 0xff);
|
| 1828 |
} |
| 1829 |
break;
|
| 1830 |
case 1: |
| 1831 |
tcg_gen_shri_i64(cpu_M0, cpu_M0, (insn & 3) << 4); |
| 1832 |
tcg_gen_trunc_i64_i32(tmp, cpu_M0); |
| 1833 |
if (insn & 8) { |
| 1834 |
tcg_gen_ext16s_i32(tmp, tmp); |
| 1835 |
} else {
|
| 1836 |
tcg_gen_andi_i32(tmp, tmp, 0xffff);
|
| 1837 |
} |
| 1838 |
break;
|
| 1839 |
case 2: |
| 1840 |
tcg_gen_shri_i64(cpu_M0, cpu_M0, (insn & 1) << 5); |
| 1841 |
tcg_gen_trunc_i64_i32(tmp, cpu_M0); |
| 1842 |
break;
|
| 1843 |
} |
| 1844 |
store_reg(s, rd, tmp); |
| 1845 |
break;
|
| 1846 |
case 0x117: case 0x517: case 0x917: case 0xd17: /* TEXTRC */ |
| 1847 |
if ((insn & 0x000ff008) != 0x0003f000 || ((insn >> 22) & 3) == 3) |
| 1848 |
return 1; |
| 1849 |
tmp = iwmmxt_load_creg(ARM_IWMMXT_wCASF); |
| 1850 |
switch ((insn >> 22) & 3) { |
| 1851 |
case 0: |
| 1852 |
tcg_gen_shri_i32(tmp, tmp, ((insn & 7) << 2) + 0); |
| 1853 |
break;
|
| 1854 |
case 1: |
| 1855 |
tcg_gen_shri_i32(tmp, tmp, ((insn & 3) << 3) + 4); |
| 1856 |
break;
|
| 1857 |
case 2: |
| 1858 |
tcg_gen_shri_i32(tmp, tmp, ((insn & 1) << 4) + 12); |
| 1859 |
break;
|
| 1860 |
} |
| 1861 |
tcg_gen_shli_i32(tmp, tmp, 28);
|
| 1862 |
gen_set_nzcv(tmp); |
| 1863 |
tcg_temp_free_i32(tmp); |
| 1864 |
break;
|
| 1865 |
case 0x401: case 0x405: case 0x409: case 0x40d: /* TBCST */ |
| 1866 |
if (((insn >> 6) & 3) == 3) |
| 1867 |
return 1; |
| 1868 |
rd = (insn >> 12) & 0xf; |
| 1869 |
wrd = (insn >> 16) & 0xf; |
| 1870 |
tmp = load_reg(s, rd); |
| 1871 |
switch ((insn >> 6) & 3) { |
| 1872 |
case 0: |
| 1873 |
gen_helper_iwmmxt_bcstb(cpu_M0, tmp); |
| 1874 |
break;
|
| 1875 |
case 1: |
| 1876 |
gen_helper_iwmmxt_bcstw(cpu_M0, tmp); |
| 1877 |
break;
|
| 1878 |
case 2: |
| 1879 |
gen_helper_iwmmxt_bcstl(cpu_M0, tmp); |
| 1880 |
break;
|
| 1881 |
} |
| 1882 |
tcg_temp_free_i32(tmp); |
| 1883 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 1884 |
gen_op_iwmmxt_set_mup(); |
| 1885 |
break;
|
| 1886 |
case 0x113: case 0x513: case 0x913: case 0xd13: /* TANDC */ |
| 1887 |
if ((insn & 0x000ff00f) != 0x0003f000 || ((insn >> 22) & 3) == 3) |
| 1888 |
return 1; |
| 1889 |
tmp = iwmmxt_load_creg(ARM_IWMMXT_wCASF); |
| 1890 |
tmp2 = tcg_temp_new_i32(); |
| 1891 |
tcg_gen_mov_i32(tmp2, tmp); |
| 1892 |
switch ((insn >> 22) & 3) { |
| 1893 |
case 0: |
| 1894 |
for (i = 0; i < 7; i ++) { |
| 1895 |
tcg_gen_shli_i32(tmp2, tmp2, 4);
|
| 1896 |
tcg_gen_and_i32(tmp, tmp, tmp2); |
| 1897 |
} |
| 1898 |
break;
|
| 1899 |
case 1: |
| 1900 |
for (i = 0; i < 3; i ++) { |
| 1901 |
tcg_gen_shli_i32(tmp2, tmp2, 8);
|
| 1902 |
tcg_gen_and_i32(tmp, tmp, tmp2); |
| 1903 |
} |
| 1904 |
break;
|
| 1905 |
case 2: |
| 1906 |
tcg_gen_shli_i32(tmp2, tmp2, 16);
|
| 1907 |
tcg_gen_and_i32(tmp, tmp, tmp2); |
| 1908 |
break;
|
| 1909 |
} |
| 1910 |
gen_set_nzcv(tmp); |
| 1911 |
tcg_temp_free_i32(tmp2); |
| 1912 |
tcg_temp_free_i32(tmp); |
| 1913 |
break;
|
| 1914 |
case 0x01c: case 0x41c: case 0x81c: case 0xc1c: /* WACC */ |
| 1915 |
wrd = (insn >> 12) & 0xf; |
| 1916 |
rd0 = (insn >> 16) & 0xf; |
| 1917 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 1918 |
switch ((insn >> 22) & 3) { |
| 1919 |
case 0: |
| 1920 |
gen_helper_iwmmxt_addcb(cpu_M0, cpu_M0); |
| 1921 |
break;
|
| 1922 |
case 1: |
| 1923 |
gen_helper_iwmmxt_addcw(cpu_M0, cpu_M0); |
| 1924 |
break;
|
| 1925 |
case 2: |
| 1926 |
gen_helper_iwmmxt_addcl(cpu_M0, cpu_M0); |
| 1927 |
break;
|
| 1928 |
case 3: |
| 1929 |
return 1; |
| 1930 |
} |
| 1931 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 1932 |
gen_op_iwmmxt_set_mup(); |
| 1933 |
break;
|
| 1934 |
case 0x115: case 0x515: case 0x915: case 0xd15: /* TORC */ |
| 1935 |
if ((insn & 0x000ff00f) != 0x0003f000 || ((insn >> 22) & 3) == 3) |
| 1936 |
return 1; |
| 1937 |
tmp = iwmmxt_load_creg(ARM_IWMMXT_wCASF); |
| 1938 |
tmp2 = tcg_temp_new_i32(); |
| 1939 |
tcg_gen_mov_i32(tmp2, tmp); |
| 1940 |
switch ((insn >> 22) & 3) { |
| 1941 |
case 0: |
| 1942 |
for (i = 0; i < 7; i ++) { |
| 1943 |
tcg_gen_shli_i32(tmp2, tmp2, 4);
|
| 1944 |
tcg_gen_or_i32(tmp, tmp, tmp2); |
| 1945 |
} |
| 1946 |
break;
|
| 1947 |
case 1: |
| 1948 |
for (i = 0; i < 3; i ++) { |
| 1949 |
tcg_gen_shli_i32(tmp2, tmp2, 8);
|
| 1950 |
tcg_gen_or_i32(tmp, tmp, tmp2); |
| 1951 |
} |
| 1952 |
break;
|
| 1953 |
case 2: |
| 1954 |
tcg_gen_shli_i32(tmp2, tmp2, 16);
|
| 1955 |
tcg_gen_or_i32(tmp, tmp, tmp2); |
| 1956 |
break;
|
| 1957 |
} |
| 1958 |
gen_set_nzcv(tmp); |
| 1959 |
tcg_temp_free_i32(tmp2); |
| 1960 |
tcg_temp_free_i32(tmp); |
| 1961 |
break;
|
| 1962 |
case 0x103: case 0x503: case 0x903: case 0xd03: /* TMOVMSK */ |
| 1963 |
rd = (insn >> 12) & 0xf; |
| 1964 |
rd0 = (insn >> 16) & 0xf; |
| 1965 |
if ((insn & 0xf) != 0 || ((insn >> 22) & 3) == 3) |
| 1966 |
return 1; |
| 1967 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 1968 |
tmp = tcg_temp_new_i32(); |
| 1969 |
switch ((insn >> 22) & 3) { |
| 1970 |
case 0: |
| 1971 |
gen_helper_iwmmxt_msbb(tmp, cpu_M0); |
| 1972 |
break;
|
| 1973 |
case 1: |
| 1974 |
gen_helper_iwmmxt_msbw(tmp, cpu_M0); |
| 1975 |
break;
|
| 1976 |
case 2: |
| 1977 |
gen_helper_iwmmxt_msbl(tmp, cpu_M0); |
| 1978 |
break;
|
| 1979 |
} |
| 1980 |
store_reg(s, rd, tmp); |
| 1981 |
break;
|
| 1982 |
case 0x106: case 0x306: case 0x506: case 0x706: /* WCMPGT */ |
| 1983 |
case 0x906: case 0xb06: case 0xd06: case 0xf06: |
| 1984 |
wrd = (insn >> 12) & 0xf; |
| 1985 |
rd0 = (insn >> 16) & 0xf; |
| 1986 |
rd1 = (insn >> 0) & 0xf; |
| 1987 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 1988 |
switch ((insn >> 22) & 3) { |
| 1989 |
case 0: |
| 1990 |
if (insn & (1 << 21)) |
| 1991 |
gen_op_iwmmxt_cmpgtsb_M0_wRn(rd1); |
| 1992 |
else
|
| 1993 |
gen_op_iwmmxt_cmpgtub_M0_wRn(rd1); |
| 1994 |
break;
|
| 1995 |
case 1: |
| 1996 |
if (insn & (1 << 21)) |
| 1997 |
gen_op_iwmmxt_cmpgtsw_M0_wRn(rd1); |
| 1998 |
else
|
| 1999 |
gen_op_iwmmxt_cmpgtuw_M0_wRn(rd1); |
| 2000 |
break;
|
| 2001 |
case 2: |
| 2002 |
if (insn & (1 << 21)) |
| 2003 |
gen_op_iwmmxt_cmpgtsl_M0_wRn(rd1); |
| 2004 |
else
|
| 2005 |
gen_op_iwmmxt_cmpgtul_M0_wRn(rd1); |
| 2006 |
break;
|
| 2007 |
case 3: |
| 2008 |
return 1; |
| 2009 |
} |
| 2010 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 2011 |
gen_op_iwmmxt_set_mup(); |
| 2012 |
gen_op_iwmmxt_set_cup(); |
| 2013 |
break;
|
| 2014 |
case 0x00e: case 0x20e: case 0x40e: case 0x60e: /* WUNPCKEL */ |
| 2015 |
case 0x80e: case 0xa0e: case 0xc0e: case 0xe0e: |
| 2016 |
wrd = (insn >> 12) & 0xf; |
| 2017 |
rd0 = (insn >> 16) & 0xf; |
| 2018 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 2019 |
switch ((insn >> 22) & 3) { |
| 2020 |
case 0: |
| 2021 |
if (insn & (1 << 21)) |
| 2022 |
gen_op_iwmmxt_unpacklsb_M0(); |
| 2023 |
else
|
| 2024 |
gen_op_iwmmxt_unpacklub_M0(); |
| 2025 |
break;
|
| 2026 |
case 1: |
| 2027 |
if (insn & (1 << 21)) |
| 2028 |
gen_op_iwmmxt_unpacklsw_M0(); |
| 2029 |
else
|
| 2030 |
gen_op_iwmmxt_unpackluw_M0(); |
| 2031 |
break;
|
| 2032 |
case 2: |
| 2033 |
if (insn & (1 << 21)) |
| 2034 |
gen_op_iwmmxt_unpacklsl_M0(); |
| 2035 |
else
|
| 2036 |
gen_op_iwmmxt_unpacklul_M0(); |
| 2037 |
break;
|
| 2038 |
case 3: |
| 2039 |
return 1; |
| 2040 |
} |
| 2041 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 2042 |
gen_op_iwmmxt_set_mup(); |
| 2043 |
gen_op_iwmmxt_set_cup(); |
| 2044 |
break;
|
| 2045 |
case 0x00c: case 0x20c: case 0x40c: case 0x60c: /* WUNPCKEH */ |
| 2046 |
case 0x80c: case 0xa0c: case 0xc0c: case 0xe0c: |
| 2047 |
wrd = (insn >> 12) & 0xf; |
| 2048 |
rd0 = (insn >> 16) & 0xf; |
| 2049 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 2050 |
switch ((insn >> 22) & 3) { |
| 2051 |
case 0: |
| 2052 |
if (insn & (1 << 21)) |
| 2053 |
gen_op_iwmmxt_unpackhsb_M0(); |
| 2054 |
else
|
| 2055 |
gen_op_iwmmxt_unpackhub_M0(); |
| 2056 |
break;
|
| 2057 |
case 1: |
| 2058 |
if (insn & (1 << 21)) |
| 2059 |
gen_op_iwmmxt_unpackhsw_M0(); |
| 2060 |
else
|
| 2061 |
gen_op_iwmmxt_unpackhuw_M0(); |
| 2062 |
break;
|
| 2063 |
case 2: |
| 2064 |
if (insn & (1 << 21)) |
| 2065 |
gen_op_iwmmxt_unpackhsl_M0(); |
| 2066 |
else
|
| 2067 |
gen_op_iwmmxt_unpackhul_M0(); |
| 2068 |
break;
|
| 2069 |
case 3: |
| 2070 |
return 1; |
| 2071 |
} |
| 2072 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 2073 |
gen_op_iwmmxt_set_mup(); |
| 2074 |
gen_op_iwmmxt_set_cup(); |
| 2075 |
break;
|
| 2076 |
case 0x204: case 0x604: case 0xa04: case 0xe04: /* WSRL */ |
| 2077 |
case 0x214: case 0x614: case 0xa14: case 0xe14: |
| 2078 |
if (((insn >> 22) & 3) == 0) |
| 2079 |
return 1; |
| 2080 |
wrd = (insn >> 12) & 0xf; |
| 2081 |
rd0 = (insn >> 16) & 0xf; |
| 2082 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 2083 |
tmp = tcg_temp_new_i32(); |
| 2084 |
if (gen_iwmmxt_shift(insn, 0xff, tmp)) { |
| 2085 |
tcg_temp_free_i32(tmp); |
| 2086 |
return 1; |
| 2087 |
} |
| 2088 |
switch ((insn >> 22) & 3) { |
| 2089 |
case 1: |
| 2090 |
gen_helper_iwmmxt_srlw(cpu_M0, cpu_env, cpu_M0, tmp); |
| 2091 |
break;
|
| 2092 |
case 2: |
| 2093 |
gen_helper_iwmmxt_srll(cpu_M0, cpu_env, cpu_M0, tmp); |
| 2094 |
break;
|
| 2095 |
case 3: |
| 2096 |
gen_helper_iwmmxt_srlq(cpu_M0, cpu_env, cpu_M0, tmp); |
| 2097 |
break;
|
| 2098 |
} |
| 2099 |
tcg_temp_free_i32(tmp); |
| 2100 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 2101 |
gen_op_iwmmxt_set_mup(); |
| 2102 |
gen_op_iwmmxt_set_cup(); |
| 2103 |
break;
|
| 2104 |
case 0x004: case 0x404: case 0x804: case 0xc04: /* WSRA */ |
| 2105 |
case 0x014: case 0x414: case 0x814: case 0xc14: |
| 2106 |
if (((insn >> 22) & 3) == 0) |
| 2107 |
return 1; |
| 2108 |
wrd = (insn >> 12) & 0xf; |
| 2109 |
rd0 = (insn >> 16) & 0xf; |
| 2110 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 2111 |
tmp = tcg_temp_new_i32(); |
| 2112 |
if (gen_iwmmxt_shift(insn, 0xff, tmp)) { |
| 2113 |
tcg_temp_free_i32(tmp); |
| 2114 |
return 1; |
| 2115 |
} |
| 2116 |
switch ((insn >> 22) & 3) { |
| 2117 |
case 1: |
| 2118 |
gen_helper_iwmmxt_sraw(cpu_M0, cpu_env, cpu_M0, tmp); |
| 2119 |
break;
|
| 2120 |
case 2: |
| 2121 |
gen_helper_iwmmxt_sral(cpu_M0, cpu_env, cpu_M0, tmp); |
| 2122 |
break;
|
| 2123 |
case 3: |
| 2124 |
gen_helper_iwmmxt_sraq(cpu_M0, cpu_env, cpu_M0, tmp); |
| 2125 |
break;
|
| 2126 |
} |
| 2127 |
tcg_temp_free_i32(tmp); |
| 2128 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 2129 |
gen_op_iwmmxt_set_mup(); |
| 2130 |
gen_op_iwmmxt_set_cup(); |
| 2131 |
break;
|
| 2132 |
case 0x104: case 0x504: case 0x904: case 0xd04: /* WSLL */ |
| 2133 |
case 0x114: case 0x514: case 0x914: case 0xd14: |
| 2134 |
if (((insn >> 22) & 3) == 0) |
| 2135 |
return 1; |
| 2136 |
wrd = (insn >> 12) & 0xf; |
| 2137 |
rd0 = (insn >> 16) & 0xf; |
| 2138 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 2139 |
tmp = tcg_temp_new_i32(); |
| 2140 |
if (gen_iwmmxt_shift(insn, 0xff, tmp)) { |
| 2141 |
tcg_temp_free_i32(tmp); |
| 2142 |
return 1; |
| 2143 |
} |
| 2144 |
switch ((insn >> 22) & 3) { |
| 2145 |
case 1: |
| 2146 |
gen_helper_iwmmxt_sllw(cpu_M0, cpu_env, cpu_M0, tmp); |
| 2147 |
break;
|
| 2148 |
case 2: |
| 2149 |
gen_helper_iwmmxt_slll(cpu_M0, cpu_env, cpu_M0, tmp); |
| 2150 |
break;
|
| 2151 |
case 3: |
| 2152 |
gen_helper_iwmmxt_sllq(cpu_M0, cpu_env, cpu_M0, tmp); |
| 2153 |
break;
|
| 2154 |
} |
| 2155 |
tcg_temp_free_i32(tmp); |
| 2156 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 2157 |
gen_op_iwmmxt_set_mup(); |
| 2158 |
gen_op_iwmmxt_set_cup(); |
| 2159 |
break;
|
| 2160 |
case 0x304: case 0x704: case 0xb04: case 0xf04: /* WROR */ |
| 2161 |
case 0x314: case 0x714: case 0xb14: case 0xf14: |
| 2162 |
if (((insn >> 22) & 3) == 0) |
| 2163 |
return 1; |
| 2164 |
wrd = (insn >> 12) & 0xf; |
| 2165 |
rd0 = (insn >> 16) & 0xf; |
| 2166 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 2167 |
tmp = tcg_temp_new_i32(); |
| 2168 |
switch ((insn >> 22) & 3) { |
| 2169 |
case 1: |
| 2170 |
if (gen_iwmmxt_shift(insn, 0xf, tmp)) { |
| 2171 |
tcg_temp_free_i32(tmp); |
| 2172 |
return 1; |
| 2173 |
} |
| 2174 |
gen_helper_iwmmxt_rorw(cpu_M0, cpu_env, cpu_M0, tmp); |
| 2175 |
break;
|
| 2176 |
case 2: |
| 2177 |
if (gen_iwmmxt_shift(insn, 0x1f, tmp)) { |
| 2178 |
tcg_temp_free_i32(tmp); |
| 2179 |
return 1; |
| 2180 |
} |
| 2181 |
gen_helper_iwmmxt_rorl(cpu_M0, cpu_env, cpu_M0, tmp); |
| 2182 |
break;
|
| 2183 |
case 3: |
| 2184 |
if (gen_iwmmxt_shift(insn, 0x3f, tmp)) { |
| 2185 |
tcg_temp_free_i32(tmp); |
| 2186 |
return 1; |
| 2187 |
} |
| 2188 |
gen_helper_iwmmxt_rorq(cpu_M0, cpu_env, cpu_M0, tmp); |
| 2189 |
break;
|
| 2190 |
} |
| 2191 |
tcg_temp_free_i32(tmp); |
| 2192 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 2193 |
gen_op_iwmmxt_set_mup(); |
| 2194 |
gen_op_iwmmxt_set_cup(); |
| 2195 |
break;
|
| 2196 |
case 0x116: case 0x316: case 0x516: case 0x716: /* WMIN */ |
| 2197 |
case 0x916: case 0xb16: case 0xd16: case 0xf16: |
| 2198 |
wrd = (insn >> 12) & 0xf; |
| 2199 |
rd0 = (insn >> 16) & 0xf; |
| 2200 |
rd1 = (insn >> 0) & 0xf; |
| 2201 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 2202 |
switch ((insn >> 22) & 3) { |
| 2203 |
case 0: |
| 2204 |
if (insn & (1 << 21)) |
| 2205 |
gen_op_iwmmxt_minsb_M0_wRn(rd1); |
| 2206 |
else
|
| 2207 |
gen_op_iwmmxt_minub_M0_wRn(rd1); |
| 2208 |
break;
|
| 2209 |
case 1: |
| 2210 |
if (insn & (1 << 21)) |
| 2211 |
gen_op_iwmmxt_minsw_M0_wRn(rd1); |
| 2212 |
else
|
| 2213 |
gen_op_iwmmxt_minuw_M0_wRn(rd1); |
| 2214 |
break;
|
| 2215 |
case 2: |
| 2216 |
if (insn & (1 << 21)) |
| 2217 |
gen_op_iwmmxt_minsl_M0_wRn(rd1); |
| 2218 |
else
|
| 2219 |
gen_op_iwmmxt_minul_M0_wRn(rd1); |
| 2220 |
break;
|
| 2221 |
case 3: |
| 2222 |
return 1; |
| 2223 |
} |
| 2224 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 2225 |
gen_op_iwmmxt_set_mup(); |
| 2226 |
break;
|
| 2227 |
case 0x016: case 0x216: case 0x416: case 0x616: /* WMAX */ |
| 2228 |
case 0x816: case 0xa16: case 0xc16: case 0xe16: |
| 2229 |
wrd = (insn >> 12) & 0xf; |
| 2230 |
rd0 = (insn >> 16) & 0xf; |
| 2231 |
rd1 = (insn >> 0) & 0xf; |
| 2232 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 2233 |
switch ((insn >> 22) & 3) { |
| 2234 |
case 0: |
| 2235 |
if (insn & (1 << 21)) |
| 2236 |
gen_op_iwmmxt_maxsb_M0_wRn(rd1); |
| 2237 |
else
|
| 2238 |
gen_op_iwmmxt_maxub_M0_wRn(rd1); |
| 2239 |
break;
|
| 2240 |
case 1: |
| 2241 |
if (insn & (1 << 21)) |
| 2242 |
gen_op_iwmmxt_maxsw_M0_wRn(rd1); |
| 2243 |
else
|
| 2244 |
gen_op_iwmmxt_maxuw_M0_wRn(rd1); |
| 2245 |
break;
|
| 2246 |
case 2: |
| 2247 |
if (insn & (1 << 21)) |
| 2248 |
gen_op_iwmmxt_maxsl_M0_wRn(rd1); |
| 2249 |
else
|
| 2250 |
gen_op_iwmmxt_maxul_M0_wRn(rd1); |
| 2251 |
break;
|
| 2252 |
case 3: |
| 2253 |
return 1; |
| 2254 |
} |
| 2255 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 2256 |
gen_op_iwmmxt_set_mup(); |
| 2257 |
break;
|
| 2258 |
case 0x002: case 0x102: case 0x202: case 0x302: /* WALIGNI */ |
| 2259 |
case 0x402: case 0x502: case 0x602: case 0x702: |
| 2260 |
wrd = (insn >> 12) & 0xf; |
| 2261 |
rd0 = (insn >> 16) & 0xf; |
| 2262 |
rd1 = (insn >> 0) & 0xf; |
| 2263 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 2264 |
tmp = tcg_const_i32((insn >> 20) & 3); |
| 2265 |
iwmmxt_load_reg(cpu_V1, rd1); |
| 2266 |
gen_helper_iwmmxt_align(cpu_M0, cpu_M0, cpu_V1, tmp); |
| 2267 |
tcg_temp_free_i32(tmp); |
| 2268 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 2269 |
gen_op_iwmmxt_set_mup(); |
| 2270 |
break;
|
| 2271 |
case 0x01a: case 0x11a: case 0x21a: case 0x31a: /* WSUB */ |
| 2272 |
case 0x41a: case 0x51a: case 0x61a: case 0x71a: |
| 2273 |
case 0x81a: case 0x91a: case 0xa1a: case 0xb1a: |
| 2274 |
case 0xc1a: case 0xd1a: case 0xe1a: case 0xf1a: |
| 2275 |
wrd = (insn >> 12) & 0xf; |
| 2276 |
rd0 = (insn >> 16) & 0xf; |
| 2277 |
rd1 = (insn >> 0) & 0xf; |
| 2278 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 2279 |
switch ((insn >> 20) & 0xf) { |
| 2280 |
case 0x0: |
| 2281 |
gen_op_iwmmxt_subnb_M0_wRn(rd1); |
| 2282 |
break;
|
| 2283 |
case 0x1: |
| 2284 |
gen_op_iwmmxt_subub_M0_wRn(rd1); |
| 2285 |
break;
|
| 2286 |
case 0x3: |
| 2287 |
gen_op_iwmmxt_subsb_M0_wRn(rd1); |
| 2288 |
break;
|
| 2289 |
case 0x4: |
| 2290 |
gen_op_iwmmxt_subnw_M0_wRn(rd1); |
| 2291 |
break;
|
| 2292 |
case 0x5: |
| 2293 |
gen_op_iwmmxt_subuw_M0_wRn(rd1); |
| 2294 |
break;
|
| 2295 |
case 0x7: |
| 2296 |
gen_op_iwmmxt_subsw_M0_wRn(rd1); |
| 2297 |
break;
|
| 2298 |
case 0x8: |
| 2299 |
gen_op_iwmmxt_subnl_M0_wRn(rd1); |
| 2300 |
break;
|
| 2301 |
case 0x9: |
| 2302 |
gen_op_iwmmxt_subul_M0_wRn(rd1); |
| 2303 |
break;
|
| 2304 |
case 0xb: |
| 2305 |
gen_op_iwmmxt_subsl_M0_wRn(rd1); |
| 2306 |
break;
|
| 2307 |
default:
|
| 2308 |
return 1; |
| 2309 |
} |
| 2310 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 2311 |
gen_op_iwmmxt_set_mup(); |
| 2312 |
gen_op_iwmmxt_set_cup(); |
| 2313 |
break;
|
| 2314 |
case 0x01e: case 0x11e: case 0x21e: case 0x31e: /* WSHUFH */ |
| 2315 |
case 0x41e: case 0x51e: case 0x61e: case 0x71e: |
| 2316 |
case 0x81e: case 0x91e: case 0xa1e: case 0xb1e: |
| 2317 |
case 0xc1e: case 0xd1e: case 0xe1e: case 0xf1e: |
| 2318 |
wrd = (insn >> 12) & 0xf; |
| 2319 |
rd0 = (insn >> 16) & 0xf; |
| 2320 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 2321 |
tmp = tcg_const_i32(((insn >> 16) & 0xf0) | (insn & 0x0f)); |
| 2322 |
gen_helper_iwmmxt_shufh(cpu_M0, cpu_env, cpu_M0, tmp); |
| 2323 |
tcg_temp_free_i32(tmp); |
| 2324 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 2325 |
gen_op_iwmmxt_set_mup(); |
| 2326 |
gen_op_iwmmxt_set_cup(); |
| 2327 |
break;
|
| 2328 |
case 0x018: case 0x118: case 0x218: case 0x318: /* WADD */ |
| 2329 |
case 0x418: case 0x518: case 0x618: case 0x718: |
| 2330 |
case 0x818: case 0x918: case 0xa18: case 0xb18: |
| 2331 |
case 0xc18: case 0xd18: case 0xe18: case 0xf18: |
| 2332 |
wrd = (insn >> 12) & 0xf; |
| 2333 |
rd0 = (insn >> 16) & 0xf; |
| 2334 |
rd1 = (insn >> 0) & 0xf; |
| 2335 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 2336 |
switch ((insn >> 20) & 0xf) { |
| 2337 |
case 0x0: |
| 2338 |
gen_op_iwmmxt_addnb_M0_wRn(rd1); |
| 2339 |
break;
|
| 2340 |
case 0x1: |
| 2341 |
gen_op_iwmmxt_addub_M0_wRn(rd1); |
| 2342 |
break;
|
| 2343 |
case 0x3: |
| 2344 |
gen_op_iwmmxt_addsb_M0_wRn(rd1); |
| 2345 |
break;
|
| 2346 |
case 0x4: |
| 2347 |
gen_op_iwmmxt_addnw_M0_wRn(rd1); |
| 2348 |
break;
|
| 2349 |
case 0x5: |
| 2350 |
gen_op_iwmmxt_adduw_M0_wRn(rd1); |
| 2351 |
break;
|
| 2352 |
case 0x7: |
| 2353 |
gen_op_iwmmxt_addsw_M0_wRn(rd1); |
| 2354 |
break;
|
| 2355 |
case 0x8: |
| 2356 |
gen_op_iwmmxt_addnl_M0_wRn(rd1); |
| 2357 |
break;
|
| 2358 |
case 0x9: |
| 2359 |
gen_op_iwmmxt_addul_M0_wRn(rd1); |
| 2360 |
break;
|
| 2361 |
case 0xb: |
| 2362 |
gen_op_iwmmxt_addsl_M0_wRn(rd1); |
| 2363 |
break;
|
| 2364 |
default:
|
| 2365 |
return 1; |
| 2366 |
} |
| 2367 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 2368 |
gen_op_iwmmxt_set_mup(); |
| 2369 |
gen_op_iwmmxt_set_cup(); |
| 2370 |
break;
|
| 2371 |
case 0x008: case 0x108: case 0x208: case 0x308: /* WPACK */ |
| 2372 |
case 0x408: case 0x508: case 0x608: case 0x708: |
| 2373 |
case 0x808: case 0x908: case 0xa08: case 0xb08: |
| 2374 |
case 0xc08: case 0xd08: case 0xe08: case 0xf08: |
| 2375 |
if (!(insn & (1 << 20)) || ((insn >> 22) & 3) == 0) |
| 2376 |
return 1; |
| 2377 |
wrd = (insn >> 12) & 0xf; |
| 2378 |
rd0 = (insn >> 16) & 0xf; |
| 2379 |
rd1 = (insn >> 0) & 0xf; |
| 2380 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
| 2381 |
switch ((insn >> 22) & 3) { |
| 2382 |
case 1: |
| 2383 |
if (insn & (1 << 21)) |
| 2384 |
gen_op_iwmmxt_packsw_M0_wRn(rd1); |
| 2385 |
else
|
| 2386 |
gen_op_iwmmxt_packuw_M0_wRn(rd1); |
| 2387 |
break;
|
| 2388 |
case 2: |
| 2389 |
if (insn & (1 << 21)) |
| 2390 |
gen_op_iwmmxt_packsl_M0_wRn(rd1); |
| 2391 |
else
|
| 2392 |
gen_op_iwmmxt_packul_M0_wRn(rd1); |
| 2393 |
break;
|
| 2394 |
case 3: |
| 2395 |
if (insn & (1 << 21)) |
| 2396 |
gen_op_iwmmxt_packsq_M0_wRn(rd1); |
| 2397 |
else
|
| 2398 |
gen_op_iwmmxt_packuq_M0_wRn(rd1); |
| 2399 |
break;
|
| 2400 |
} |
| 2401 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 2402 |
gen_op_iwmmxt_set_mup(); |
| 2403 |
gen_op_iwmmxt_set_cup(); |
| 2404 |
break;
|
| 2405 |
case 0x201: case 0x203: case 0x205: case 0x207: |
| 2406 |
case 0x209: case 0x20b: case 0x20d: case 0x20f: |
| 2407 |
case 0x211: case 0x213: case 0x215: case 0x217: |
| 2408 |
case 0x219: case 0x21b: case 0x21d: case 0x21f: |
| 2409 |
wrd = (insn >> 5) & 0xf; |
| 2410 |
rd0 = (insn >> 12) & 0xf; |
| 2411 |
rd1 = (insn >> 0) & 0xf; |
| 2412 |
if (rd0 == 0xf || rd1 == 0xf) |
| 2413 |
return 1; |
| 2414 |
gen_op_iwmmxt_movq_M0_wRn(wrd); |
| 2415 |
tmp = load_reg(s, rd0); |
| 2416 |
tmp2 = load_reg(s, rd1); |
| 2417 |
switch ((insn >> 16) & 0xf) { |
| 2418 |
case 0x0: /* TMIA */ |
| 2419 |
gen_helper_iwmmxt_muladdsl(cpu_M0, cpu_M0, tmp, tmp2); |
| 2420 |
break;
|
| 2421 |
case 0x8: /* TMIAPH */ |
| 2422 |
gen_helper_iwmmxt_muladdsw(cpu_M0, cpu_M0, tmp, tmp2); |
| 2423 |
break;
|
| 2424 |
case 0xc: case 0xd: case 0xe: case 0xf: /* TMIAxy */ |
| 2425 |
if (insn & (1 << 16)) |
| 2426 |
tcg_gen_shri_i32(tmp, tmp, 16);
|
| 2427 |
if (insn & (1 << 17)) |
| 2428 |
tcg_gen_shri_i32(tmp2, tmp2, 16);
|
| 2429 |
gen_helper_iwmmxt_muladdswl(cpu_M0, cpu_M0, tmp, tmp2); |
| 2430 |
break;
|
| 2431 |
default:
|
| 2432 |
tcg_temp_free_i32(tmp2); |
| 2433 |
tcg_temp_free_i32(tmp); |
| 2434 |
return 1; |
| 2435 |
} |
| 2436 |
tcg_temp_free_i32(tmp2); |
| 2437 |
tcg_temp_free_i32(tmp); |
| 2438 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
| 2439 |
gen_op_iwmmxt_set_mup(); |
| 2440 |
break;
|
| 2441 |
default:
|
| 2442 |
return 1; |
| 2443 |
} |
| 2444 |
|
| 2445 |
return 0; |
| 2446 |
} |
| 2447 |
|
| 2448 |
/* Disassemble an XScale DSP instruction. Returns nonzero if an error occurred
|
| 2449 |
(ie. an undefined instruction). */
|
| 2450 |
static int disas_dsp_insn(CPUARMState *env, DisasContext *s, uint32_t insn) |
| 2451 |
{
|
| 2452 |
int acc, rd0, rd1, rdhi, rdlo;
|
| 2453 |
TCGv_i32 tmp, tmp2; |
| 2454 |
|
| 2455 |
if ((insn & 0x0ff00f10) == 0x0e200010) { |
| 2456 |
/* Multiply with Internal Accumulate Format */
|
| 2457 |
rd0 = (insn >> 12) & 0xf; |
| 2458 |
rd1 = insn & 0xf;
|
| 2459 |
acc = (insn >> 5) & 7; |
| 2460 |
|
| 2461 |
if (acc != 0) |
| 2462 |
return 1; |
| 2463 |
|
| 2464 |
tmp = load_reg(s, rd0); |
| 2465 |
tmp2 = load_reg(s, rd1); |
| 2466 |
switch ((insn >> 16) & 0xf) { |
| 2467 |
case 0x0: /* MIA */ |
| 2468 |
gen_helper_iwmmxt_muladdsl(cpu_M0, cpu_M0, tmp, tmp2); |
| 2469 |
break;
|
| 2470 |
case 0x8: /* MIAPH */ |
| 2471 |
gen_helper_iwmmxt_muladdsw(cpu_M0, cpu_M0, tmp, tmp2); |
| 2472 |
break;
|
| 2473 |
case 0xc: /* MIABB */ |
| 2474 |
case 0xd: /* MIABT */ |
| 2475 |
case 0xe: /* MIATB */ |
| 2476 |
case 0xf: /* MIATT */ |
| 2477 |
if (insn & (1 << 16)) |
| 2478 |
tcg_gen_shri_i32(tmp, tmp, 16);
|
| 2479 |
if (insn & (1 << 17)) |
| 2480 |
tcg_gen_shri_i32(tmp2, tmp2, 16);
|
| 2481 |
gen_helper_iwmmxt_muladdswl(cpu_M0, cpu_M0, tmp, tmp2); |
| 2482 |
break;
|
| 2483 |
default:
|
| 2484 |
return 1; |
| 2485 |
} |
| 2486 |
tcg_temp_free_i32(tmp2); |
| 2487 |
tcg_temp_free_i32(tmp); |
| 2488 |
|
| 2489 |
gen_op_iwmmxt_movq_wRn_M0(acc); |
| 2490 |
return 0; |
| 2491 |
} |
| 2492 |
|
| 2493 |
if ((insn & 0x0fe00ff8) == 0x0c400000) { |
| 2494 |
/* Internal Accumulator Access Format */
|
| 2495 |
rdhi = (insn >> 16) & 0xf; |
| 2496 |
rdlo = (insn >> 12) & 0xf; |
| 2497 |
acc = insn & 7;
|
| 2498 |
|
| 2499 |
if (acc != 0) |
| 2500 |
return 1; |
| 2501 |
|
| 2502 |
if (insn & ARM_CP_RW_BIT) { /* MRA */ |
| 2503 |
iwmmxt_load_reg(cpu_V0, acc); |
| 2504 |
tcg_gen_trunc_i64_i32(cpu_R[rdlo], cpu_V0); |
| 2505 |
tcg_gen_shri_i64(cpu_V0, cpu_V0, 32);
|
| 2506 |
tcg_gen_trunc_i64_i32(cpu_R[rdhi], cpu_V0); |
| 2507 |
tcg_gen_andi_i32(cpu_R[rdhi], cpu_R[rdhi], (1 << (40 - 32)) - 1); |
| 2508 |
} else { /* MAR */ |
| 2509 |
tcg_gen_concat_i32_i64(cpu_V0, cpu_R[rdlo], cpu_R[rdhi]); |
| 2510 |
iwmmxt_store_reg(cpu_V0, acc); |
| 2511 |
} |
| 2512 |
return 0; |
| 2513 |
} |
| 2514 |
|
| 2515 |
return 1; |
| 2516 |
} |
| 2517 |
|
| 2518 |
#define VFP_REG_SHR(x, n) (((n) > 0) ? (x) >> (n) : (x) << -(n)) |
| 2519 |
#define VFP_SREG(insn, bigbit, smallbit) \
|
| 2520 |
((VFP_REG_SHR(insn, bigbit - 1) & 0x1e) | (((insn) >> (smallbit)) & 1)) |
| 2521 |
#define VFP_DREG(reg, insn, bigbit, smallbit) do { \ |
| 2522 |
if (arm_feature(env, ARM_FEATURE_VFP3)) { \
|
| 2523 |
reg = (((insn) >> (bigbit)) & 0x0f) \
|
| 2524 |
| (((insn) >> ((smallbit) - 4)) & 0x10); \ |
| 2525 |
} else { \
|
| 2526 |
if (insn & (1 << (smallbit))) \ |
| 2527 |
return 1; \ |
| 2528 |
reg = ((insn) >> (bigbit)) & 0x0f; \
|
| 2529 |
}} while (0) |
| 2530 |
|
| 2531 |
#define VFP_SREG_D(insn) VFP_SREG(insn, 12, 22) |
| 2532 |
#define VFP_DREG_D(reg, insn) VFP_DREG(reg, insn, 12, 22) |
| 2533 |
#define VFP_SREG_N(insn) VFP_SREG(insn, 16, 7) |
| 2534 |
#define VFP_DREG_N(reg, insn) VFP_DREG(reg, insn, 16, 7) |
| 2535 |
#define VFP_SREG_M(insn) VFP_SREG(insn, 0, 5) |
| 2536 |
#define VFP_DREG_M(reg, insn) VFP_DREG(reg, insn, 0, 5) |
| 2537 |
|
| 2538 |
/* Move between integer and VFP cores. */
|
| 2539 |
static TCGv_i32 gen_vfp_mrs(void) |
| 2540 |
{
|
| 2541 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 2542 |
tcg_gen_mov_i32(tmp, cpu_F0s); |
| 2543 |
return tmp;
|
| 2544 |
} |
| 2545 |
|
| 2546 |
static void gen_vfp_msr(TCGv_i32 tmp) |
| 2547 |
{
|
| 2548 |
tcg_gen_mov_i32(cpu_F0s, tmp); |
| 2549 |
tcg_temp_free_i32(tmp); |
| 2550 |
} |
| 2551 |
|
| 2552 |
static void gen_neon_dup_u8(TCGv_i32 var, int shift) |
| 2553 |
{
|
| 2554 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 2555 |
if (shift)
|
| 2556 |
tcg_gen_shri_i32(var, var, shift); |
| 2557 |
tcg_gen_ext8u_i32(var, var); |
| 2558 |
tcg_gen_shli_i32(tmp, var, 8);
|
| 2559 |
tcg_gen_or_i32(var, var, tmp); |
| 2560 |
tcg_gen_shli_i32(tmp, var, 16);
|
| 2561 |
tcg_gen_or_i32(var, var, tmp); |
| 2562 |
tcg_temp_free_i32(tmp); |
| 2563 |
} |
| 2564 |
|
| 2565 |
static void gen_neon_dup_low16(TCGv_i32 var) |
| 2566 |
{
|
| 2567 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 2568 |
tcg_gen_ext16u_i32(var, var); |
| 2569 |
tcg_gen_shli_i32(tmp, var, 16);
|
| 2570 |
tcg_gen_or_i32(var, var, tmp); |
| 2571 |
tcg_temp_free_i32(tmp); |
| 2572 |
} |
| 2573 |
|
| 2574 |
static void gen_neon_dup_high16(TCGv_i32 var) |
| 2575 |
{
|
| 2576 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 2577 |
tcg_gen_andi_i32(var, var, 0xffff0000);
|
| 2578 |
tcg_gen_shri_i32(tmp, var, 16);
|
| 2579 |
tcg_gen_or_i32(var, var, tmp); |
| 2580 |
tcg_temp_free_i32(tmp); |
| 2581 |
} |
| 2582 |
|
| 2583 |
static TCGv_i32 gen_load_and_replicate(DisasContext *s, TCGv_i32 addr, int size) |
| 2584 |
{
|
| 2585 |
/* Load a single Neon element and replicate into a 32 bit TCG reg */
|
| 2586 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 2587 |
switch (size) {
|
| 2588 |
case 0: |
| 2589 |
gen_aa32_ld8u(tmp, addr, IS_USER(s)); |
| 2590 |
gen_neon_dup_u8(tmp, 0);
|
| 2591 |
break;
|
| 2592 |
case 1: |
| 2593 |
gen_aa32_ld16u(tmp, addr, IS_USER(s)); |
| 2594 |
gen_neon_dup_low16(tmp); |
| 2595 |
break;
|
| 2596 |
case 2: |
| 2597 |
gen_aa32_ld32u(tmp, addr, IS_USER(s)); |
| 2598 |
break;
|
| 2599 |
default: /* Avoid compiler warnings. */ |
| 2600 |
abort(); |
| 2601 |
} |
| 2602 |
return tmp;
|
| 2603 |
} |
| 2604 |
|
| 2605 |
static int handle_vsel(uint32_t insn, uint32_t rd, uint32_t rn, uint32_t rm, |
| 2606 |
uint32_t dp) |
| 2607 |
{
|
| 2608 |
uint32_t cc = extract32(insn, 20, 2); |
| 2609 |
|
| 2610 |
if (dp) {
|
| 2611 |
TCGv_i64 frn, frm, dest; |
| 2612 |
TCGv_i64 tmp, zero, zf, nf, vf; |
| 2613 |
|
| 2614 |
zero = tcg_const_i64(0);
|
| 2615 |
|
| 2616 |
frn = tcg_temp_new_i64(); |
| 2617 |
frm = tcg_temp_new_i64(); |
| 2618 |
dest = tcg_temp_new_i64(); |
| 2619 |
|
| 2620 |
zf = tcg_temp_new_i64(); |
| 2621 |
nf = tcg_temp_new_i64(); |
| 2622 |
vf = tcg_temp_new_i64(); |
| 2623 |
|
| 2624 |
tcg_gen_extu_i32_i64(zf, cpu_ZF); |
| 2625 |
tcg_gen_ext_i32_i64(nf, cpu_NF); |
| 2626 |
tcg_gen_ext_i32_i64(vf, cpu_VF); |
| 2627 |
|
| 2628 |
tcg_gen_ld_f64(frn, cpu_env, vfp_reg_offset(dp, rn)); |
| 2629 |
tcg_gen_ld_f64(frm, cpu_env, vfp_reg_offset(dp, rm)); |
| 2630 |
switch (cc) {
|
| 2631 |
case 0: /* eq: Z */ |
| 2632 |
tcg_gen_movcond_i64(TCG_COND_EQ, dest, zf, zero, |
| 2633 |
frn, frm); |
| 2634 |
break;
|
| 2635 |
case 1: /* vs: V */ |
| 2636 |
tcg_gen_movcond_i64(TCG_COND_LT, dest, vf, zero, |
| 2637 |
frn, frm); |
| 2638 |
break;
|
| 2639 |
case 2: /* ge: N == V -> N ^ V == 0 */ |
| 2640 |
tmp = tcg_temp_new_i64(); |
| 2641 |
tcg_gen_xor_i64(tmp, vf, nf); |
| 2642 |
tcg_gen_movcond_i64(TCG_COND_GE, dest, tmp, zero, |
| 2643 |
frn, frm); |
| 2644 |
tcg_temp_free_i64(tmp); |
| 2645 |
break;
|
| 2646 |
case 3: /* gt: !Z && N == V */ |
| 2647 |
tcg_gen_movcond_i64(TCG_COND_NE, dest, zf, zero, |
| 2648 |
frn, frm); |
| 2649 |
tmp = tcg_temp_new_i64(); |
| 2650 |
tcg_gen_xor_i64(tmp, vf, nf); |
| 2651 |
tcg_gen_movcond_i64(TCG_COND_GE, dest, tmp, zero, |
| 2652 |
dest, frm); |
| 2653 |
tcg_temp_free_i64(tmp); |
| 2654 |
break;
|
| 2655 |
} |
| 2656 |
tcg_gen_st_f64(dest, cpu_env, vfp_reg_offset(dp, rd)); |
| 2657 |
tcg_temp_free_i64(frn); |
| 2658 |
tcg_temp_free_i64(frm); |
| 2659 |
tcg_temp_free_i64(dest); |
| 2660 |
|
| 2661 |
tcg_temp_free_i64(zf); |
| 2662 |
tcg_temp_free_i64(nf); |
| 2663 |
tcg_temp_free_i64(vf); |
| 2664 |
|
| 2665 |
tcg_temp_free_i64(zero); |
| 2666 |
} else {
|
| 2667 |
TCGv_i32 frn, frm, dest; |
| 2668 |
TCGv_i32 tmp, zero; |
| 2669 |
|
| 2670 |
zero = tcg_const_i32(0);
|
| 2671 |
|
| 2672 |
frn = tcg_temp_new_i32(); |
| 2673 |
frm = tcg_temp_new_i32(); |
| 2674 |
dest = tcg_temp_new_i32(); |
| 2675 |
tcg_gen_ld_f32(frn, cpu_env, vfp_reg_offset(dp, rn)); |
| 2676 |
tcg_gen_ld_f32(frm, cpu_env, vfp_reg_offset(dp, rm)); |
| 2677 |
switch (cc) {
|
| 2678 |
case 0: /* eq: Z */ |
| 2679 |
tcg_gen_movcond_i32(TCG_COND_EQ, dest, cpu_ZF, zero, |
| 2680 |
frn, frm); |
| 2681 |
break;
|
| 2682 |
case 1: /* vs: V */ |
| 2683 |
tcg_gen_movcond_i32(TCG_COND_LT, dest, cpu_VF, zero, |
| 2684 |
frn, frm); |
| 2685 |
break;
|
| 2686 |
case 2: /* ge: N == V -> N ^ V == 0 */ |
| 2687 |
tmp = tcg_temp_new_i32(); |
| 2688 |
tcg_gen_xor_i32(tmp, cpu_VF, cpu_NF); |
| 2689 |
tcg_gen_movcond_i32(TCG_COND_GE, dest, tmp, zero, |
| 2690 |
frn, frm); |
| 2691 |
tcg_temp_free_i32(tmp); |
| 2692 |
break;
|
| 2693 |
case 3: /* gt: !Z && N == V */ |
| 2694 |
tcg_gen_movcond_i32(TCG_COND_NE, dest, cpu_ZF, zero, |
| 2695 |
frn, frm); |
| 2696 |
tmp = tcg_temp_new_i32(); |
| 2697 |
tcg_gen_xor_i32(tmp, cpu_VF, cpu_NF); |
| 2698 |
tcg_gen_movcond_i32(TCG_COND_GE, dest, tmp, zero, |
| 2699 |
dest, frm); |
| 2700 |
tcg_temp_free_i32(tmp); |
| 2701 |
break;
|
| 2702 |
} |
| 2703 |
tcg_gen_st_f32(dest, cpu_env, vfp_reg_offset(dp, rd)); |
| 2704 |
tcg_temp_free_i32(frn); |
| 2705 |
tcg_temp_free_i32(frm); |
| 2706 |
tcg_temp_free_i32(dest); |
| 2707 |
|
| 2708 |
tcg_temp_free_i32(zero); |
| 2709 |
} |
| 2710 |
|
| 2711 |
return 0; |
| 2712 |
} |
| 2713 |
|
| 2714 |
static int handle_vminmaxnm(uint32_t insn, uint32_t rd, uint32_t rn, |
| 2715 |
uint32_t rm, uint32_t dp) |
| 2716 |
{
|
| 2717 |
uint32_t vmin = extract32(insn, 6, 1); |
| 2718 |
TCGv_ptr fpst = get_fpstatus_ptr(0);
|
| 2719 |
|
| 2720 |
if (dp) {
|
| 2721 |
TCGv_i64 frn, frm, dest; |
| 2722 |
|
| 2723 |
frn = tcg_temp_new_i64(); |
| 2724 |
frm = tcg_temp_new_i64(); |
| 2725 |
dest = tcg_temp_new_i64(); |
| 2726 |
|
| 2727 |
tcg_gen_ld_f64(frn, cpu_env, vfp_reg_offset(dp, rn)); |
| 2728 |
tcg_gen_ld_f64(frm, cpu_env, vfp_reg_offset(dp, rm)); |
| 2729 |
if (vmin) {
|
| 2730 |
gen_helper_vfp_minnumd(dest, frn, frm, fpst); |
| 2731 |
} else {
|
| 2732 |
gen_helper_vfp_maxnumd(dest, frn, frm, fpst); |
| 2733 |
} |
| 2734 |
tcg_gen_st_f64(dest, cpu_env, vfp_reg_offset(dp, rd)); |
| 2735 |
tcg_temp_free_i64(frn); |
| 2736 |
tcg_temp_free_i64(frm); |
| 2737 |
tcg_temp_free_i64(dest); |
| 2738 |
} else {
|
| 2739 |
TCGv_i32 frn, frm, dest; |
| 2740 |
|
| 2741 |
frn = tcg_temp_new_i32(); |
| 2742 |
frm = tcg_temp_new_i32(); |
| 2743 |
dest = tcg_temp_new_i32(); |
| 2744 |
|
| 2745 |
tcg_gen_ld_f32(frn, cpu_env, vfp_reg_offset(dp, rn)); |
| 2746 |
tcg_gen_ld_f32(frm, cpu_env, vfp_reg_offset(dp, rm)); |
| 2747 |
if (vmin) {
|
| 2748 |
gen_helper_vfp_minnums(dest, frn, frm, fpst); |
| 2749 |
} else {
|
| 2750 |
gen_helper_vfp_maxnums(dest, frn, frm, fpst); |
| 2751 |
} |
| 2752 |
tcg_gen_st_f32(dest, cpu_env, vfp_reg_offset(dp, rd)); |
| 2753 |
tcg_temp_free_i32(frn); |
| 2754 |
tcg_temp_free_i32(frm); |
| 2755 |
tcg_temp_free_i32(dest); |
| 2756 |
} |
| 2757 |
|
| 2758 |
tcg_temp_free_ptr(fpst); |
| 2759 |
return 0; |
| 2760 |
} |
| 2761 |
|
| 2762 |
static int handle_vrint(uint32_t insn, uint32_t rd, uint32_t rm, uint32_t dp, |
| 2763 |
int rounding)
|
| 2764 |
{
|
| 2765 |
TCGv_ptr fpst = get_fpstatus_ptr(0);
|
| 2766 |
TCGv_i32 tcg_rmode; |
| 2767 |
|
| 2768 |
tcg_rmode = tcg_const_i32(arm_rmode_to_sf(rounding)); |
| 2769 |
gen_helper_set_rmode(tcg_rmode, tcg_rmode, cpu_env); |
| 2770 |
|
| 2771 |
if (dp) {
|
| 2772 |
TCGv_i64 tcg_op; |
| 2773 |
TCGv_i64 tcg_res; |
| 2774 |
tcg_op = tcg_temp_new_i64(); |
| 2775 |
tcg_res = tcg_temp_new_i64(); |
| 2776 |
tcg_gen_ld_f64(tcg_op, cpu_env, vfp_reg_offset(dp, rm)); |
| 2777 |
gen_helper_rintd(tcg_res, tcg_op, fpst); |
| 2778 |
tcg_gen_st_f64(tcg_res, cpu_env, vfp_reg_offset(dp, rd)); |
| 2779 |
tcg_temp_free_i64(tcg_op); |
| 2780 |
tcg_temp_free_i64(tcg_res); |
| 2781 |
} else {
|
| 2782 |
TCGv_i32 tcg_op; |
| 2783 |
TCGv_i32 tcg_res; |
| 2784 |
tcg_op = tcg_temp_new_i32(); |
| 2785 |
tcg_res = tcg_temp_new_i32(); |
| 2786 |
tcg_gen_ld_f32(tcg_op, cpu_env, vfp_reg_offset(dp, rm)); |
| 2787 |
gen_helper_rints(tcg_res, tcg_op, fpst); |
| 2788 |
tcg_gen_st_f32(tcg_res, cpu_env, vfp_reg_offset(dp, rd)); |
| 2789 |
tcg_temp_free_i32(tcg_op); |
| 2790 |
tcg_temp_free_i32(tcg_res); |
| 2791 |
} |
| 2792 |
|
| 2793 |
gen_helper_set_rmode(tcg_rmode, tcg_rmode, cpu_env); |
| 2794 |
tcg_temp_free_i32(tcg_rmode); |
| 2795 |
|
| 2796 |
tcg_temp_free_ptr(fpst); |
| 2797 |
return 0; |
| 2798 |
} |
| 2799 |
|
| 2800 |
static int handle_vcvt(uint32_t insn, uint32_t rd, uint32_t rm, uint32_t dp, |
| 2801 |
int rounding)
|
| 2802 |
{
|
| 2803 |
bool is_signed = extract32(insn, 7, 1); |
| 2804 |
TCGv_ptr fpst = get_fpstatus_ptr(0);
|
| 2805 |
TCGv_i32 tcg_rmode, tcg_shift; |
| 2806 |
|
| 2807 |
tcg_shift = tcg_const_i32(0);
|
| 2808 |
|
| 2809 |
tcg_rmode = tcg_const_i32(arm_rmode_to_sf(rounding)); |
| 2810 |
gen_helper_set_rmode(tcg_rmode, tcg_rmode, cpu_env); |
| 2811 |
|
| 2812 |
if (dp) {
|
| 2813 |
TCGv_i64 tcg_double, tcg_res; |
| 2814 |
TCGv_i32 tcg_tmp; |
| 2815 |
/* Rd is encoded as a single precision register even when the source
|
| 2816 |
* is double precision.
|
| 2817 |
*/
|
| 2818 |
rd = ((rd << 1) & 0x1e) | ((rd >> 4) & 0x1); |
| 2819 |
tcg_double = tcg_temp_new_i64(); |
| 2820 |
tcg_res = tcg_temp_new_i64(); |
| 2821 |
tcg_tmp = tcg_temp_new_i32(); |
| 2822 |
tcg_gen_ld_f64(tcg_double, cpu_env, vfp_reg_offset(1, rm));
|
| 2823 |
if (is_signed) {
|
| 2824 |
gen_helper_vfp_tosld(tcg_res, tcg_double, tcg_shift, fpst); |
| 2825 |
} else {
|
| 2826 |
gen_helper_vfp_tould(tcg_res, tcg_double, tcg_shift, fpst); |
| 2827 |
} |
| 2828 |
tcg_gen_trunc_i64_i32(tcg_tmp, tcg_res); |
| 2829 |
tcg_gen_st_f32(tcg_tmp, cpu_env, vfp_reg_offset(0, rd));
|
| 2830 |
tcg_temp_free_i32(tcg_tmp); |
| 2831 |
tcg_temp_free_i64(tcg_res); |
| 2832 |
tcg_temp_free_i64(tcg_double); |
| 2833 |
} else {
|
| 2834 |
TCGv_i32 tcg_single, tcg_res; |
| 2835 |
tcg_single = tcg_temp_new_i32(); |
| 2836 |
tcg_res = tcg_temp_new_i32(); |
| 2837 |
tcg_gen_ld_f32(tcg_single, cpu_env, vfp_reg_offset(0, rm));
|
| 2838 |
if (is_signed) {
|
| 2839 |
gen_helper_vfp_tosls(tcg_res, tcg_single, tcg_shift, fpst); |
| 2840 |
} else {
|
| 2841 |
gen_helper_vfp_touls(tcg_res, tcg_single, tcg_shift, fpst); |
| 2842 |
} |
| 2843 |
tcg_gen_st_f32(tcg_res, cpu_env, vfp_reg_offset(0, rd));
|
| 2844 |
tcg_temp_free_i32(tcg_res); |
| 2845 |
tcg_temp_free_i32(tcg_single); |
| 2846 |
} |
| 2847 |
|
| 2848 |
gen_helper_set_rmode(tcg_rmode, tcg_rmode, cpu_env); |
| 2849 |
tcg_temp_free_i32(tcg_rmode); |
| 2850 |
|
| 2851 |
tcg_temp_free_i32(tcg_shift); |
| 2852 |
|
| 2853 |
tcg_temp_free_ptr(fpst); |
| 2854 |
|
| 2855 |
return 0; |
| 2856 |
} |
| 2857 |
|
| 2858 |
/* Table for converting the most common AArch32 encoding of
|
| 2859 |
* rounding mode to arm_fprounding order (which matches the
|
| 2860 |
* common AArch64 order); see ARM ARM pseudocode FPDecodeRM().
|
| 2861 |
*/
|
| 2862 |
static const uint8_t fp_decode_rm[] = { |
| 2863 |
FPROUNDING_TIEAWAY, |
| 2864 |
FPROUNDING_TIEEVEN, |
| 2865 |
FPROUNDING_POSINF, |
| 2866 |
FPROUNDING_NEGINF, |
| 2867 |
}; |
| 2868 |
|
| 2869 |
static int disas_vfp_v8_insn(CPUARMState *env, DisasContext *s, uint32_t insn) |
| 2870 |
{
|
| 2871 |
uint32_t rd, rn, rm, dp = extract32(insn, 8, 1); |
| 2872 |
|
| 2873 |
if (!arm_feature(env, ARM_FEATURE_V8)) {
|
| 2874 |
return 1; |
| 2875 |
} |
| 2876 |
|
| 2877 |
if (dp) {
|
| 2878 |
VFP_DREG_D(rd, insn); |
| 2879 |
VFP_DREG_N(rn, insn); |
| 2880 |
VFP_DREG_M(rm, insn); |
| 2881 |
} else {
|
| 2882 |
rd = VFP_SREG_D(insn); |
| 2883 |
rn = VFP_SREG_N(insn); |
| 2884 |
rm = VFP_SREG_M(insn); |
| 2885 |
} |
| 2886 |
|
| 2887 |
if ((insn & 0x0f800e50) == 0x0e000a00) { |
| 2888 |
return handle_vsel(insn, rd, rn, rm, dp);
|
| 2889 |
} else if ((insn & 0x0fb00e10) == 0x0e800a00) { |
| 2890 |
return handle_vminmaxnm(insn, rd, rn, rm, dp);
|
| 2891 |
} else if ((insn & 0x0fbc0ed0) == 0x0eb80a40) { |
| 2892 |
/* VRINTA, VRINTN, VRINTP, VRINTM */
|
| 2893 |
int rounding = fp_decode_rm[extract32(insn, 16, 2)]; |
| 2894 |
return handle_vrint(insn, rd, rm, dp, rounding);
|
| 2895 |
} else if ((insn & 0x0fbc0e50) == 0x0ebc0a40) { |
| 2896 |
/* VCVTA, VCVTN, VCVTP, VCVTM */
|
| 2897 |
int rounding = fp_decode_rm[extract32(insn, 16, 2)]; |
| 2898 |
return handle_vcvt(insn, rd, rm, dp, rounding);
|
| 2899 |
} |
| 2900 |
return 1; |
| 2901 |
} |
| 2902 |
|
| 2903 |
/* Disassemble a VFP instruction. Returns nonzero if an error occurred
|
| 2904 |
(ie. an undefined instruction). */
|
| 2905 |
static int disas_vfp_insn(CPUARMState * env, DisasContext *s, uint32_t insn) |
| 2906 |
{
|
| 2907 |
uint32_t rd, rn, rm, op, i, n, offset, delta_d, delta_m, bank_mask; |
| 2908 |
int dp, veclen;
|
| 2909 |
TCGv_i32 addr; |
| 2910 |
TCGv_i32 tmp; |
| 2911 |
TCGv_i32 tmp2; |
| 2912 |
|
| 2913 |
if (!arm_feature(env, ARM_FEATURE_VFP))
|
| 2914 |
return 1; |
| 2915 |
|
| 2916 |
if (!s->vfp_enabled) {
|
| 2917 |
/* VFP disabled. Only allow fmxr/fmrx to/from some control regs. */
|
| 2918 |
if ((insn & 0x0fe00fff) != 0x0ee00a10) |
| 2919 |
return 1; |
| 2920 |
rn = (insn >> 16) & 0xf; |
| 2921 |
if (rn != ARM_VFP_FPSID && rn != ARM_VFP_FPEXC
|
| 2922 |
&& rn != ARM_VFP_MVFR1 && rn != ARM_VFP_MVFR0) |
| 2923 |
return 1; |
| 2924 |
} |
| 2925 |
|
| 2926 |
if (extract32(insn, 28, 4) == 0xf) { |
| 2927 |
/* Encodings with T=1 (Thumb) or unconditional (ARM):
|
| 2928 |
* only used in v8 and above.
|
| 2929 |
*/
|
| 2930 |
return disas_vfp_v8_insn(env, s, insn);
|
| 2931 |
} |
| 2932 |
|
| 2933 |
dp = ((insn & 0xf00) == 0xb00); |
| 2934 |
switch ((insn >> 24) & 0xf) { |
| 2935 |
case 0xe: |
| 2936 |
if (insn & (1 << 4)) { |
| 2937 |
/* single register transfer */
|
| 2938 |
rd = (insn >> 12) & 0xf; |
| 2939 |
if (dp) {
|
| 2940 |
int size;
|
| 2941 |
int pass;
|
| 2942 |
|
| 2943 |
VFP_DREG_N(rn, insn); |
| 2944 |
if (insn & 0xf) |
| 2945 |
return 1; |
| 2946 |
if (insn & 0x00c00060 |
| 2947 |
&& !arm_feature(env, ARM_FEATURE_NEON)) |
| 2948 |
return 1; |
| 2949 |
|
| 2950 |
pass = (insn >> 21) & 1; |
| 2951 |
if (insn & (1 << 22)) { |
| 2952 |
size = 0;
|
| 2953 |
offset = ((insn >> 5) & 3) * 8; |
| 2954 |
} else if (insn & (1 << 5)) { |
| 2955 |
size = 1;
|
| 2956 |
offset = (insn & (1 << 6)) ? 16 : 0; |
| 2957 |
} else {
|
| 2958 |
size = 2;
|
| 2959 |
offset = 0;
|
| 2960 |
} |
| 2961 |
if (insn & ARM_CP_RW_BIT) {
|
| 2962 |
/* vfp->arm */
|
| 2963 |
tmp = neon_load_reg(rn, pass); |
| 2964 |
switch (size) {
|
| 2965 |
case 0: |
| 2966 |
if (offset)
|
| 2967 |
tcg_gen_shri_i32(tmp, tmp, offset); |
| 2968 |
if (insn & (1 << 23)) |
| 2969 |
gen_uxtb(tmp); |
| 2970 |
else
|
| 2971 |
gen_sxtb(tmp); |
| 2972 |
break;
|
| 2973 |
case 1: |
| 2974 |
if (insn & (1 << 23)) { |
| 2975 |
if (offset) {
|
| 2976 |
tcg_gen_shri_i32(tmp, tmp, 16);
|
| 2977 |
} else {
|
| 2978 |
gen_uxth(tmp); |
| 2979 |
} |
| 2980 |
} else {
|
| 2981 |
if (offset) {
|
| 2982 |
tcg_gen_sari_i32(tmp, tmp, 16);
|
| 2983 |
} else {
|
| 2984 |
gen_sxth(tmp); |
| 2985 |
} |
| 2986 |
} |
| 2987 |
break;
|
| 2988 |
case 2: |
| 2989 |
break;
|
| 2990 |
} |
| 2991 |
store_reg(s, rd, tmp); |
| 2992 |
} else {
|
| 2993 |
/* arm->vfp */
|
| 2994 |
tmp = load_reg(s, rd); |
| 2995 |
if (insn & (1 << 23)) { |
| 2996 |
/* VDUP */
|
| 2997 |
if (size == 0) { |
| 2998 |
gen_neon_dup_u8(tmp, 0);
|
| 2999 |
} else if (size == 1) { |
| 3000 |
gen_neon_dup_low16(tmp); |
| 3001 |
} |
| 3002 |
for (n = 0; n <= pass * 2; n++) { |
| 3003 |
tmp2 = tcg_temp_new_i32(); |
| 3004 |
tcg_gen_mov_i32(tmp2, tmp); |
| 3005 |
neon_store_reg(rn, n, tmp2); |
| 3006 |
} |
| 3007 |
neon_store_reg(rn, n, tmp); |
| 3008 |
} else {
|
| 3009 |
/* VMOV */
|
| 3010 |
switch (size) {
|
| 3011 |
case 0: |
| 3012 |
tmp2 = neon_load_reg(rn, pass); |
| 3013 |
tcg_gen_deposit_i32(tmp, tmp2, tmp, offset, 8);
|
| 3014 |
tcg_temp_free_i32(tmp2); |
| 3015 |
break;
|
| 3016 |
case 1: |
| 3017 |
tmp2 = neon_load_reg(rn, pass); |
| 3018 |
tcg_gen_deposit_i32(tmp, tmp2, tmp, offset, 16);
|
| 3019 |
tcg_temp_free_i32(tmp2); |
| 3020 |
break;
|
| 3021 |
case 2: |
| 3022 |
break;
|
| 3023 |
} |
| 3024 |
neon_store_reg(rn, pass, tmp); |
| 3025 |
} |
| 3026 |
} |
| 3027 |
} else { /* !dp */ |
| 3028 |
if ((insn & 0x6f) != 0x00) |
| 3029 |
return 1; |
| 3030 |
rn = VFP_SREG_N(insn); |
| 3031 |
if (insn & ARM_CP_RW_BIT) {
|
| 3032 |
/* vfp->arm */
|
| 3033 |
if (insn & (1 << 21)) { |
| 3034 |
/* system register */
|
| 3035 |
rn >>= 1;
|
| 3036 |
|
| 3037 |
switch (rn) {
|
| 3038 |
case ARM_VFP_FPSID:
|
| 3039 |
/* VFP2 allows access to FSID from userspace.
|
| 3040 |
VFP3 restricts all id registers to privileged
|
| 3041 |
accesses. */
|
| 3042 |
if (IS_USER(s)
|
| 3043 |
&& arm_feature(env, ARM_FEATURE_VFP3)) |
| 3044 |
return 1; |
| 3045 |
tmp = load_cpu_field(vfp.xregs[rn]); |
| 3046 |
break;
|
| 3047 |
case ARM_VFP_FPEXC:
|
| 3048 |
if (IS_USER(s))
|
| 3049 |
return 1; |
| 3050 |
tmp = load_cpu_field(vfp.xregs[rn]); |
| 3051 |
break;
|
| 3052 |
case ARM_VFP_FPINST:
|
| 3053 |
case ARM_VFP_FPINST2:
|
| 3054 |
/* Not present in VFP3. */
|
| 3055 |
if (IS_USER(s)
|
| 3056 |
|| arm_feature(env, ARM_FEATURE_VFP3)) |
| 3057 |
return 1; |
| 3058 |
tmp = load_cpu_field(vfp.xregs[rn]); |
| 3059 |
break;
|
| 3060 |
case ARM_VFP_FPSCR:
|
| 3061 |
if (rd == 15) { |
| 3062 |
tmp = load_cpu_field(vfp.xregs[ARM_VFP_FPSCR]); |
| 3063 |
tcg_gen_andi_i32(tmp, tmp, 0xf0000000);
|
| 3064 |
} else {
|
| 3065 |
tmp = tcg_temp_new_i32(); |
| 3066 |
gen_helper_vfp_get_fpscr(tmp, cpu_env); |
| 3067 |
} |
| 3068 |
break;
|
| 3069 |
case ARM_VFP_MVFR0:
|
| 3070 |
case ARM_VFP_MVFR1:
|
| 3071 |
if (IS_USER(s)
|
| 3072 |
|| !arm_feature(env, ARM_FEATURE_MVFR)) |
| 3073 |
return 1; |
| 3074 |
tmp = load_cpu_field(vfp.xregs[rn]); |
| 3075 |
break;
|
| 3076 |
default:
|
| 3077 |
return 1; |
| 3078 |
} |
| 3079 |
} else {
|
| 3080 |
gen_mov_F0_vreg(0, rn);
|
| 3081 |
tmp = gen_vfp_mrs(); |
| 3082 |
} |
| 3083 |
if (rd == 15) { |
| 3084 |
/* Set the 4 flag bits in the CPSR. */
|
| 3085 |
gen_set_nzcv(tmp); |
| 3086 |
tcg_temp_free_i32(tmp); |
| 3087 |
} else {
|
| 3088 |
store_reg(s, rd, tmp); |
| 3089 |
} |
| 3090 |
} else {
|
| 3091 |
/* arm->vfp */
|
| 3092 |
if (insn & (1 << 21)) { |
| 3093 |
rn >>= 1;
|
| 3094 |
/* system register */
|
| 3095 |
switch (rn) {
|
| 3096 |
case ARM_VFP_FPSID:
|
| 3097 |
case ARM_VFP_MVFR0:
|
| 3098 |
case ARM_VFP_MVFR1:
|
| 3099 |
/* Writes are ignored. */
|
| 3100 |
break;
|
| 3101 |
case ARM_VFP_FPSCR:
|
| 3102 |
tmp = load_reg(s, rd); |
| 3103 |
gen_helper_vfp_set_fpscr(cpu_env, tmp); |
| 3104 |
tcg_temp_free_i32(tmp); |
| 3105 |
gen_lookup_tb(s); |
| 3106 |
break;
|
| 3107 |
case ARM_VFP_FPEXC:
|
| 3108 |
if (IS_USER(s))
|
| 3109 |
return 1; |
| 3110 |
/* TODO: VFP subarchitecture support.
|
| 3111 |
* For now, keep the EN bit only */
|
| 3112 |
tmp = load_reg(s, rd); |
| 3113 |
tcg_gen_andi_i32(tmp, tmp, 1 << 30); |
| 3114 |
store_cpu_field(tmp, vfp.xregs[rn]); |
| 3115 |
gen_lookup_tb(s); |
| 3116 |
break;
|
| 3117 |
case ARM_VFP_FPINST:
|
| 3118 |
case ARM_VFP_FPINST2:
|
| 3119 |
tmp = load_reg(s, rd); |
| 3120 |
store_cpu_field(tmp, vfp.xregs[rn]); |
| 3121 |
break;
|
| 3122 |
default:
|
| 3123 |
return 1; |
| 3124 |
} |
| 3125 |
} else {
|
| 3126 |
tmp = load_reg(s, rd); |
| 3127 |
gen_vfp_msr(tmp); |
| 3128 |
gen_mov_vreg_F0(0, rn);
|
| 3129 |
} |
| 3130 |
} |
| 3131 |
} |
| 3132 |
} else {
|
| 3133 |
/* data processing */
|
| 3134 |
/* The opcode is in bits 23, 21, 20 and 6. */
|
| 3135 |
op = ((insn >> 20) & 8) | ((insn >> 19) & 6) | ((insn >> 6) & 1); |
| 3136 |
if (dp) {
|
| 3137 |
if (op == 15) { |
| 3138 |
/* rn is opcode */
|
| 3139 |
rn = ((insn >> 15) & 0x1e) | ((insn >> 7) & 1); |
| 3140 |
} else {
|
| 3141 |
/* rn is register number */
|
| 3142 |
VFP_DREG_N(rn, insn); |
| 3143 |
} |
| 3144 |
|
| 3145 |
if (op == 15 && (rn == 15 || ((rn & 0x1c) == 0x18) || |
| 3146 |
((rn & 0x1e) == 0x6))) { |
| 3147 |
/* Integer or single/half precision destination. */
|
| 3148 |
rd = VFP_SREG_D(insn); |
| 3149 |
} else {
|
| 3150 |
VFP_DREG_D(rd, insn); |
| 3151 |
} |
| 3152 |
if (op == 15 && |
| 3153 |
(((rn & 0x1c) == 0x10) || ((rn & 0x14) == 0x14) || |
| 3154 |
((rn & 0x1e) == 0x4))) { |
| 3155 |
/* VCVT from int or half precision is always from S reg
|
| 3156 |
* regardless of dp bit. VCVT with immediate frac_bits
|
| 3157 |
* has same format as SREG_M.
|
| 3158 |
*/
|
| 3159 |
rm = VFP_SREG_M(insn); |
| 3160 |
} else {
|
| 3161 |
VFP_DREG_M(rm, insn); |
| 3162 |
} |
| 3163 |
} else {
|
| 3164 |
rn = VFP_SREG_N(insn); |
| 3165 |
if (op == 15 && rn == 15) { |
| 3166 |
/* Double precision destination. */
|
| 3167 |
VFP_DREG_D(rd, insn); |
| 3168 |
} else {
|
| 3169 |
rd = VFP_SREG_D(insn); |
| 3170 |
} |
| 3171 |
/* NB that we implicitly rely on the encoding for the frac_bits
|
| 3172 |
* in VCVT of fixed to float being the same as that of an SREG_M
|
| 3173 |
*/
|
| 3174 |
rm = VFP_SREG_M(insn); |
| 3175 |
} |
| 3176 |
|
| 3177 |
veclen = s->vec_len; |
| 3178 |
if (op == 15 && rn > 3) |
| 3179 |
veclen = 0;
|
| 3180 |
|
| 3181 |
/* Shut up compiler warnings. */
|
| 3182 |
delta_m = 0;
|
| 3183 |
delta_d = 0;
|
| 3184 |
bank_mask = 0;
|
| 3185 |
|
| 3186 |
if (veclen > 0) { |
| 3187 |
if (dp)
|
| 3188 |
bank_mask = 0xc;
|
| 3189 |
else
|
| 3190 |
bank_mask = 0x18;
|
| 3191 |
|
| 3192 |
/* Figure out what type of vector operation this is. */
|
| 3193 |
if ((rd & bank_mask) == 0) { |
| 3194 |
/* scalar */
|
| 3195 |
veclen = 0;
|
| 3196 |
} else {
|
| 3197 |
if (dp)
|
| 3198 |
delta_d = (s->vec_stride >> 1) + 1; |
| 3199 |
else
|
| 3200 |
delta_d = s->vec_stride + 1;
|
| 3201 |
|
| 3202 |
if ((rm & bank_mask) == 0) { |
| 3203 |
/* mixed scalar/vector */
|
| 3204 |
delta_m = 0;
|
| 3205 |
} else {
|
| 3206 |
/* vector */
|
| 3207 |
delta_m = delta_d; |
| 3208 |
} |
| 3209 |
} |
| 3210 |
} |
| 3211 |
|
| 3212 |
/* Load the initial operands. */
|
| 3213 |
if (op == 15) { |
| 3214 |
switch (rn) {
|
| 3215 |
case 16: |
| 3216 |
case 17: |
| 3217 |
/* Integer source */
|
| 3218 |
gen_mov_F0_vreg(0, rm);
|
| 3219 |
break;
|
| 3220 |
case 8: |
| 3221 |
case 9: |
| 3222 |
/* Compare */
|
| 3223 |
gen_mov_F0_vreg(dp, rd); |
| 3224 |
gen_mov_F1_vreg(dp, rm); |
| 3225 |
break;
|
| 3226 |
case 10: |
| 3227 |
case 11: |
| 3228 |
/* Compare with zero */
|
| 3229 |
gen_mov_F0_vreg(dp, rd); |
| 3230 |
gen_vfp_F1_ld0(dp); |
| 3231 |
break;
|
| 3232 |
case 20: |
| 3233 |
case 21: |
| 3234 |
case 22: |
| 3235 |
case 23: |
| 3236 |
case 28: |
| 3237 |
case 29: |
| 3238 |
case 30: |
| 3239 |
case 31: |
| 3240 |
/* Source and destination the same. */
|
| 3241 |
gen_mov_F0_vreg(dp, rd); |
| 3242 |
break;
|
| 3243 |
case 4: |
| 3244 |
case 5: |
| 3245 |
case 6: |
| 3246 |
case 7: |
| 3247 |
/* VCVTB, VCVTT: only present with the halfprec extension
|
| 3248 |
* UNPREDICTABLE if bit 8 is set prior to ARMv8
|
| 3249 |
* (we choose to UNDEF)
|
| 3250 |
*/
|
| 3251 |
if ((dp && !arm_feature(env, ARM_FEATURE_V8)) ||
|
| 3252 |
!arm_feature(env, ARM_FEATURE_VFP_FP16)) {
|
| 3253 |
return 1; |
| 3254 |
} |
| 3255 |
if (!extract32(rn, 1, 1)) { |
| 3256 |
/* Half precision source. */
|
| 3257 |
gen_mov_F0_vreg(0, rm);
|
| 3258 |
break;
|
| 3259 |
} |
| 3260 |
/* Otherwise fall through */
|
| 3261 |
default:
|
| 3262 |
/* One source operand. */
|
| 3263 |
gen_mov_F0_vreg(dp, rm); |
| 3264 |
break;
|
| 3265 |
} |
| 3266 |
} else {
|
| 3267 |
/* Two source operands. */
|
| 3268 |
gen_mov_F0_vreg(dp, rn); |
| 3269 |
gen_mov_F1_vreg(dp, rm); |
| 3270 |
} |
| 3271 |
|
| 3272 |
for (;;) {
|
| 3273 |
/* Perform the calculation. */
|
| 3274 |
switch (op) {
|
| 3275 |
case 0: /* VMLA: fd + (fn * fm) */ |
| 3276 |
/* Note that order of inputs to the add matters for NaNs */
|
| 3277 |
gen_vfp_F1_mul(dp); |
| 3278 |
gen_mov_F0_vreg(dp, rd); |
| 3279 |
gen_vfp_add(dp); |
| 3280 |
break;
|
| 3281 |
case 1: /* VMLS: fd + -(fn * fm) */ |
| 3282 |
gen_vfp_mul(dp); |
| 3283 |
gen_vfp_F1_neg(dp); |
| 3284 |
gen_mov_F0_vreg(dp, rd); |
| 3285 |
gen_vfp_add(dp); |
| 3286 |
break;
|
| 3287 |
case 2: /* VNMLS: -fd + (fn * fm) */ |
| 3288 |
/* Note that it isn't valid to replace (-A + B) with (B - A)
|
| 3289 |
* or similar plausible looking simplifications
|
| 3290 |
* because this will give wrong results for NaNs.
|
| 3291 |
*/
|
| 3292 |
gen_vfp_F1_mul(dp); |
| 3293 |
gen_mov_F0_vreg(dp, rd); |
| 3294 |
gen_vfp_neg(dp); |
| 3295 |
gen_vfp_add(dp); |
| 3296 |
break;
|
| 3297 |
case 3: /* VNMLA: -fd + -(fn * fm) */ |
| 3298 |
gen_vfp_mul(dp); |
| 3299 |
gen_vfp_F1_neg(dp); |
| 3300 |
gen_mov_F0_vreg(dp, rd); |
| 3301 |
gen_vfp_neg(dp); |
| 3302 |
gen_vfp_add(dp); |
| 3303 |
break;
|
| 3304 |
case 4: /* mul: fn * fm */ |
| 3305 |
gen_vfp_mul(dp); |
| 3306 |
break;
|
| 3307 |
case 5: /* nmul: -(fn * fm) */ |
| 3308 |
gen_vfp_mul(dp); |
| 3309 |
gen_vfp_neg(dp); |
| 3310 |
break;
|
| 3311 |
case 6: /* add: fn + fm */ |
| 3312 |
gen_vfp_add(dp); |
| 3313 |
break;
|
| 3314 |
case 7: /* sub: fn - fm */ |
| 3315 |
gen_vfp_sub(dp); |
| 3316 |
break;
|
| 3317 |
case 8: /* div: fn / fm */ |
| 3318 |
gen_vfp_div(dp); |
| 3319 |
break;
|
| 3320 |
case 10: /* VFNMA : fd = muladd(-fd, fn, fm) */ |
| 3321 |
case 11: /* VFNMS : fd = muladd(-fd, -fn, fm) */ |
| 3322 |
case 12: /* VFMA : fd = muladd( fd, fn, fm) */ |
| 3323 |
case 13: /* VFMS : fd = muladd( fd, -fn, fm) */ |
| 3324 |
/* These are fused multiply-add, and must be done as one
|
| 3325 |
* floating point operation with no rounding between the
|
| 3326 |
* multiplication and addition steps.
|
| 3327 |
* NB that doing the negations here as separate steps is
|
| 3328 |
* correct : an input NaN should come out with its sign bit
|
| 3329 |
* flipped if it is a negated-input.
|
| 3330 |
*/
|
| 3331 |
if (!arm_feature(env, ARM_FEATURE_VFP4)) {
|
| 3332 |
return 1; |
| 3333 |
} |
| 3334 |
if (dp) {
|
| 3335 |
TCGv_ptr fpst; |
| 3336 |
TCGv_i64 frd; |
| 3337 |
if (op & 1) { |
| 3338 |
/* VFNMS, VFMS */
|
| 3339 |
gen_helper_vfp_negd(cpu_F0d, cpu_F0d); |
| 3340 |
} |
| 3341 |
frd = tcg_temp_new_i64(); |
| 3342 |
tcg_gen_ld_f64(frd, cpu_env, vfp_reg_offset(dp, rd)); |
| 3343 |
if (op & 2) { |
| 3344 |
/* VFNMA, VFNMS */
|
| 3345 |
gen_helper_vfp_negd(frd, frd); |
| 3346 |
} |
| 3347 |
fpst = get_fpstatus_ptr(0);
|
| 3348 |
gen_helper_vfp_muladdd(cpu_F0d, cpu_F0d, |
| 3349 |
cpu_F1d, frd, fpst); |
| 3350 |
tcg_temp_free_ptr(fpst); |
| 3351 |
tcg_temp_free_i64(frd); |
| 3352 |
} else {
|
| 3353 |
TCGv_ptr fpst; |
| 3354 |
TCGv_i32 frd; |
| 3355 |
if (op & 1) { |
| 3356 |
/* VFNMS, VFMS */
|
| 3357 |
gen_helper_vfp_negs(cpu_F0s, cpu_F0s); |
| 3358 |
} |
| 3359 |
frd = tcg_temp_new_i32(); |
| 3360 |
tcg_gen_ld_f32(frd, cpu_env, vfp_reg_offset(dp, rd)); |
| 3361 |
if (op & 2) { |
| 3362 |
gen_helper_vfp_negs(frd, frd); |
| 3363 |
} |
| 3364 |
fpst = get_fpstatus_ptr(0);
|
| 3365 |
gen_helper_vfp_muladds(cpu_F0s, cpu_F0s, |
| 3366 |
cpu_F1s, frd, fpst); |
| 3367 |
tcg_temp_free_ptr(fpst); |
| 3368 |
tcg_temp_free_i32(frd); |
| 3369 |
} |
| 3370 |
break;
|
| 3371 |
case 14: /* fconst */ |
| 3372 |
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
| 3373 |
return 1; |
| 3374 |
|
| 3375 |
n = (insn << 12) & 0x80000000; |
| 3376 |
i = ((insn >> 12) & 0x70) | (insn & 0xf); |
| 3377 |
if (dp) {
|
| 3378 |
if (i & 0x40) |
| 3379 |
i |= 0x3f80;
|
| 3380 |
else
|
| 3381 |
i |= 0x4000;
|
| 3382 |
n |= i << 16;
|
| 3383 |
tcg_gen_movi_i64(cpu_F0d, ((uint64_t)n) << 32);
|
| 3384 |
} else {
|
| 3385 |
if (i & 0x40) |
| 3386 |
i |= 0x780;
|
| 3387 |
else
|
| 3388 |
i |= 0x800;
|
| 3389 |
n |= i << 19;
|
| 3390 |
tcg_gen_movi_i32(cpu_F0s, n); |
| 3391 |
} |
| 3392 |
break;
|
| 3393 |
case 15: /* extension space */ |
| 3394 |
switch (rn) {
|
| 3395 |
case 0: /* cpy */ |
| 3396 |
/* no-op */
|
| 3397 |
break;
|
| 3398 |
case 1: /* abs */ |
| 3399 |
gen_vfp_abs(dp); |
| 3400 |
break;
|
| 3401 |
case 2: /* neg */ |
| 3402 |
gen_vfp_neg(dp); |
| 3403 |
break;
|
| 3404 |
case 3: /* sqrt */ |
| 3405 |
gen_vfp_sqrt(dp); |
| 3406 |
break;
|
| 3407 |
case 4: /* vcvtb.f32.f16, vcvtb.f64.f16 */ |
| 3408 |
tmp = gen_vfp_mrs(); |
| 3409 |
tcg_gen_ext16u_i32(tmp, tmp); |
| 3410 |
if (dp) {
|
| 3411 |
gen_helper_vfp_fcvt_f16_to_f64(cpu_F0d, tmp, |
| 3412 |
cpu_env); |
| 3413 |
} else {
|
| 3414 |
gen_helper_vfp_fcvt_f16_to_f32(cpu_F0s, tmp, |
| 3415 |
cpu_env); |
| 3416 |
} |
| 3417 |
tcg_temp_free_i32(tmp); |
| 3418 |
break;
|
| 3419 |
case 5: /* vcvtt.f32.f16, vcvtt.f64.f16 */ |
| 3420 |
tmp = gen_vfp_mrs(); |
| 3421 |
tcg_gen_shri_i32(tmp, tmp, 16);
|
| 3422 |
if (dp) {
|
| 3423 |
gen_helper_vfp_fcvt_f16_to_f64(cpu_F0d, tmp, |
| 3424 |
cpu_env); |
| 3425 |
} else {
|
| 3426 |
gen_helper_vfp_fcvt_f16_to_f32(cpu_F0s, tmp, |
| 3427 |
cpu_env); |
| 3428 |
} |
| 3429 |
tcg_temp_free_i32(tmp); |
| 3430 |
break;
|
| 3431 |
case 6: /* vcvtb.f16.f32, vcvtb.f16.f64 */ |
| 3432 |
tmp = tcg_temp_new_i32(); |
| 3433 |
if (dp) {
|
| 3434 |
gen_helper_vfp_fcvt_f64_to_f16(tmp, cpu_F0d, |
| 3435 |
cpu_env); |
| 3436 |
} else {
|
| 3437 |
gen_helper_vfp_fcvt_f32_to_f16(tmp, cpu_F0s, |
| 3438 |
cpu_env); |
| 3439 |
} |
| 3440 |
gen_mov_F0_vreg(0, rd);
|
| 3441 |
tmp2 = gen_vfp_mrs(); |
| 3442 |
tcg_gen_andi_i32(tmp2, tmp2, 0xffff0000);
|
| 3443 |
tcg_gen_or_i32(tmp, tmp, tmp2); |
| 3444 |
tcg_temp_free_i32(tmp2); |
| 3445 |
gen_vfp_msr(tmp); |
| 3446 |
break;
|
| 3447 |
case 7: /* vcvtt.f16.f32, vcvtt.f16.f64 */ |
| 3448 |
tmp = tcg_temp_new_i32(); |
| 3449 |
if (dp) {
|
| 3450 |
gen_helper_vfp_fcvt_f64_to_f16(tmp, cpu_F0d, |
| 3451 |
cpu_env); |
| 3452 |
} else {
|
| 3453 |
gen_helper_vfp_fcvt_f32_to_f16(tmp, cpu_F0s, |
| 3454 |
cpu_env); |
| 3455 |
} |
| 3456 |
tcg_gen_shli_i32(tmp, tmp, 16);
|
| 3457 |
gen_mov_F0_vreg(0, rd);
|
| 3458 |
tmp2 = gen_vfp_mrs(); |
| 3459 |
tcg_gen_ext16u_i32(tmp2, tmp2); |
| 3460 |
tcg_gen_or_i32(tmp, tmp, tmp2); |
| 3461 |
tcg_temp_free_i32(tmp2); |
| 3462 |
gen_vfp_msr(tmp); |
| 3463 |
break;
|
| 3464 |
case 8: /* cmp */ |
| 3465 |
gen_vfp_cmp(dp); |
| 3466 |
break;
|
| 3467 |
case 9: /* cmpe */ |
| 3468 |
gen_vfp_cmpe(dp); |
| 3469 |
break;
|
| 3470 |
case 10: /* cmpz */ |
| 3471 |
gen_vfp_cmp(dp); |
| 3472 |
break;
|
| 3473 |
case 11: /* cmpez */ |
| 3474 |
gen_vfp_F1_ld0(dp); |
| 3475 |
gen_vfp_cmpe(dp); |
| 3476 |
break;
|
| 3477 |
case 12: /* vrintr */ |
| 3478 |
{
|
| 3479 |
TCGv_ptr fpst = get_fpstatus_ptr(0);
|
| 3480 |
if (dp) {
|
| 3481 |
gen_helper_rintd(cpu_F0d, cpu_F0d, fpst); |
| 3482 |
} else {
|
| 3483 |
gen_helper_rints(cpu_F0s, cpu_F0s, fpst); |
| 3484 |
} |
| 3485 |
tcg_temp_free_ptr(fpst); |
| 3486 |
break;
|
| 3487 |
} |
| 3488 |
case 13: /* vrintz */ |
| 3489 |
{
|
| 3490 |
TCGv_ptr fpst = get_fpstatus_ptr(0);
|
| 3491 |
TCGv_i32 tcg_rmode; |
| 3492 |
tcg_rmode = tcg_const_i32(float_round_to_zero); |
| 3493 |
gen_helper_set_rmode(tcg_rmode, tcg_rmode, cpu_env); |
| 3494 |
if (dp) {
|
| 3495 |
gen_helper_rintd(cpu_F0d, cpu_F0d, fpst); |
| 3496 |
} else {
|
| 3497 |
gen_helper_rints(cpu_F0s, cpu_F0s, fpst); |
| 3498 |
} |
| 3499 |
gen_helper_set_rmode(tcg_rmode, tcg_rmode, cpu_env); |
| 3500 |
tcg_temp_free_i32(tcg_rmode); |
| 3501 |
tcg_temp_free_ptr(fpst); |
| 3502 |
break;
|
| 3503 |
} |
| 3504 |
case 14: /* vrintx */ |
| 3505 |
{
|
| 3506 |
TCGv_ptr fpst = get_fpstatus_ptr(0);
|
| 3507 |
if (dp) {
|
| 3508 |
gen_helper_rintd_exact(cpu_F0d, cpu_F0d, fpst); |
| 3509 |
} else {
|
| 3510 |
gen_helper_rints_exact(cpu_F0s, cpu_F0s, fpst); |
| 3511 |
} |
| 3512 |
tcg_temp_free_ptr(fpst); |
| 3513 |
break;
|
| 3514 |
} |
| 3515 |
case 15: /* single<->double conversion */ |
| 3516 |
if (dp)
|
| 3517 |
gen_helper_vfp_fcvtsd(cpu_F0s, cpu_F0d, cpu_env); |
| 3518 |
else
|
| 3519 |
gen_helper_vfp_fcvtds(cpu_F0d, cpu_F0s, cpu_env); |
| 3520 |
break;
|
| 3521 |
case 16: /* fuito */ |
| 3522 |
gen_vfp_uito(dp, 0);
|
| 3523 |
break;
|
| 3524 |
case 17: /* fsito */ |
| 3525 |
gen_vfp_sito(dp, 0);
|
| 3526 |
break;
|
| 3527 |
case 20: /* fshto */ |
| 3528 |
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
| 3529 |
return 1; |
| 3530 |
gen_vfp_shto(dp, 16 - rm, 0); |
| 3531 |
break;
|
| 3532 |
case 21: /* fslto */ |
| 3533 |
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
| 3534 |
return 1; |
| 3535 |
gen_vfp_slto(dp, 32 - rm, 0); |
| 3536 |
break;
|
| 3537 |
case 22: /* fuhto */ |
| 3538 |
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
| 3539 |
return 1; |
| 3540 |
gen_vfp_uhto(dp, 16 - rm, 0); |
| 3541 |
break;
|
| 3542 |
case 23: /* fulto */ |
| 3543 |
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
| 3544 |
return 1; |
| 3545 |
gen_vfp_ulto(dp, 32 - rm, 0); |
| 3546 |
break;
|
| 3547 |
case 24: /* ftoui */ |
| 3548 |
gen_vfp_toui(dp, 0);
|
| 3549 |
break;
|
| 3550 |
case 25: /* ftouiz */ |
| 3551 |
gen_vfp_touiz(dp, 0);
|
| 3552 |
break;
|
| 3553 |
case 26: /* ftosi */ |
| 3554 |
gen_vfp_tosi(dp, 0);
|
| 3555 |
break;
|
| 3556 |
case 27: /* ftosiz */ |
| 3557 |
gen_vfp_tosiz(dp, 0);
|
| 3558 |
break;
|
| 3559 |
case 28: /* ftosh */ |
| 3560 |
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
| 3561 |
return 1; |
| 3562 |
gen_vfp_tosh(dp, 16 - rm, 0); |
| 3563 |
break;
|
| 3564 |
case 29: /* ftosl */ |
| 3565 |
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
| 3566 |
return 1; |
| 3567 |
gen_vfp_tosl(dp, 32 - rm, 0); |
| 3568 |
break;
|
| 3569 |
case 30: /* ftouh */ |
| 3570 |
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
| 3571 |
return 1; |
| 3572 |
gen_vfp_touh(dp, 16 - rm, 0); |
| 3573 |
break;
|
| 3574 |
case 31: /* ftoul */ |
| 3575 |
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
| 3576 |
return 1; |
| 3577 |
gen_vfp_toul(dp, 32 - rm, 0); |
| 3578 |
break;
|
| 3579 |
default: /* undefined */ |
| 3580 |
return 1; |
| 3581 |
} |
| 3582 |
break;
|
| 3583 |
default: /* undefined */ |
| 3584 |
return 1; |
| 3585 |
} |
| 3586 |
|
| 3587 |
/* Write back the result. */
|
| 3588 |
if (op == 15 && (rn >= 8 && rn <= 11)) { |
| 3589 |
/* Comparison, do nothing. */
|
| 3590 |
} else if (op == 15 && dp && ((rn & 0x1c) == 0x18 || |
| 3591 |
(rn & 0x1e) == 0x6)) { |
| 3592 |
/* VCVT double to int: always integer result.
|
| 3593 |
* VCVT double to half precision is always a single
|
| 3594 |
* precision result.
|
| 3595 |
*/
|
| 3596 |
gen_mov_vreg_F0(0, rd);
|
| 3597 |
} else if (op == 15 && rn == 15) { |
| 3598 |
/* conversion */
|
| 3599 |
gen_mov_vreg_F0(!dp, rd); |
| 3600 |
} else {
|
| 3601 |
gen_mov_vreg_F0(dp, rd); |
| 3602 |
} |
| 3603 |
|
| 3604 |
/* break out of the loop if we have finished */
|
| 3605 |
if (veclen == 0) |
| 3606 |
break;
|
| 3607 |
|
| 3608 |
if (op == 15 && delta_m == 0) { |
| 3609 |
/* single source one-many */
|
| 3610 |
while (veclen--) {
|
| 3611 |
rd = ((rd + delta_d) & (bank_mask - 1))
|
| 3612 |
| (rd & bank_mask); |
| 3613 |
gen_mov_vreg_F0(dp, rd); |
| 3614 |
} |
| 3615 |
break;
|
| 3616 |
} |
| 3617 |
/* Setup the next operands. */
|
| 3618 |
veclen--; |
| 3619 |
rd = ((rd + delta_d) & (bank_mask - 1))
|
| 3620 |
| (rd & bank_mask); |
| 3621 |
|
| 3622 |
if (op == 15) { |
| 3623 |
/* One source operand. */
|
| 3624 |
rm = ((rm + delta_m) & (bank_mask - 1))
|
| 3625 |
| (rm & bank_mask); |
| 3626 |
gen_mov_F0_vreg(dp, rm); |
| 3627 |
} else {
|
| 3628 |
/* Two source operands. */
|
| 3629 |
rn = ((rn + delta_d) & (bank_mask - 1))
|
| 3630 |
| (rn & bank_mask); |
| 3631 |
gen_mov_F0_vreg(dp, rn); |
| 3632 |
if (delta_m) {
|
| 3633 |
rm = ((rm + delta_m) & (bank_mask - 1))
|
| 3634 |
| (rm & bank_mask); |
| 3635 |
gen_mov_F1_vreg(dp, rm); |
| 3636 |
} |
| 3637 |
} |
| 3638 |
} |
| 3639 |
} |
| 3640 |
break;
|
| 3641 |
case 0xc: |
| 3642 |
case 0xd: |
| 3643 |
if ((insn & 0x03e00000) == 0x00400000) { |
| 3644 |
/* two-register transfer */
|
| 3645 |
rn = (insn >> 16) & 0xf; |
| 3646 |
rd = (insn >> 12) & 0xf; |
| 3647 |
if (dp) {
|
| 3648 |
VFP_DREG_M(rm, insn); |
| 3649 |
} else {
|
| 3650 |
rm = VFP_SREG_M(insn); |
| 3651 |
} |
| 3652 |
|
| 3653 |
if (insn & ARM_CP_RW_BIT) {
|
| 3654 |
/* vfp->arm */
|
| 3655 |
if (dp) {
|
| 3656 |
gen_mov_F0_vreg(0, rm * 2); |
| 3657 |
tmp = gen_vfp_mrs(); |
| 3658 |
store_reg(s, rd, tmp); |
| 3659 |
gen_mov_F0_vreg(0, rm * 2 + 1); |
| 3660 |
tmp = gen_vfp_mrs(); |
| 3661 |
store_reg(s, rn, tmp); |
| 3662 |
} else {
|
| 3663 |
gen_mov_F0_vreg(0, rm);
|
| 3664 |
tmp = gen_vfp_mrs(); |
| 3665 |
store_reg(s, rd, tmp); |
| 3666 |
gen_mov_F0_vreg(0, rm + 1); |
| 3667 |
tmp = gen_vfp_mrs(); |
| 3668 |
store_reg(s, rn, tmp); |
| 3669 |
} |
| 3670 |
} else {
|
| 3671 |
/* arm->vfp */
|
| 3672 |
if (dp) {
|
| 3673 |
tmp = load_reg(s, rd); |
| 3674 |
gen_vfp_msr(tmp); |
| 3675 |
gen_mov_vreg_F0(0, rm * 2); |
| 3676 |
tmp = load_reg(s, rn); |
| 3677 |
gen_vfp_msr(tmp); |
| 3678 |
gen_mov_vreg_F0(0, rm * 2 + 1); |
| 3679 |
} else {
|
| 3680 |
tmp = load_reg(s, rd); |
| 3681 |
gen_vfp_msr(tmp); |
| 3682 |
gen_mov_vreg_F0(0, rm);
|
| 3683 |
tmp = load_reg(s, rn); |
| 3684 |
gen_vfp_msr(tmp); |
| 3685 |
gen_mov_vreg_F0(0, rm + 1); |
| 3686 |
} |
| 3687 |
} |
| 3688 |
} else {
|
| 3689 |
/* Load/store */
|
| 3690 |
rn = (insn >> 16) & 0xf; |
| 3691 |
if (dp)
|
| 3692 |
VFP_DREG_D(rd, insn); |
| 3693 |
else
|
| 3694 |
rd = VFP_SREG_D(insn); |
| 3695 |
if ((insn & 0x01200000) == 0x01000000) { |
| 3696 |
/* Single load/store */
|
| 3697 |
offset = (insn & 0xff) << 2; |
| 3698 |
if ((insn & (1 << 23)) == 0) |
| 3699 |
offset = -offset; |
| 3700 |
if (s->thumb && rn == 15) { |
| 3701 |
/* This is actually UNPREDICTABLE */
|
| 3702 |
addr = tcg_temp_new_i32(); |
| 3703 |
tcg_gen_movi_i32(addr, s->pc & ~2);
|
| 3704 |
} else {
|
| 3705 |
addr = load_reg(s, rn); |
| 3706 |
} |
| 3707 |
tcg_gen_addi_i32(addr, addr, offset); |
| 3708 |
if (insn & (1 << 20)) { |
| 3709 |
gen_vfp_ld(s, dp, addr); |
| 3710 |
gen_mov_vreg_F0(dp, rd); |
| 3711 |
} else {
|
| 3712 |
gen_mov_F0_vreg(dp, rd); |
| 3713 |
gen_vfp_st(s, dp, addr); |
| 3714 |
} |
| 3715 |
tcg_temp_free_i32(addr); |
| 3716 |
} else {
|
| 3717 |
/* load/store multiple */
|
| 3718 |
int w = insn & (1 << 21); |
| 3719 |
if (dp)
|
| 3720 |
n = (insn >> 1) & 0x7f; |
| 3721 |
else
|
| 3722 |
n = insn & 0xff;
|
| 3723 |
|
| 3724 |
if (w && !(((insn >> 23) ^ (insn >> 24)) & 1)) { |
| 3725 |
/* P == U , W == 1 => UNDEF */
|
| 3726 |
return 1; |
| 3727 |
} |
| 3728 |
if (n == 0 || (rd + n) > 32 || (dp && n > 16)) { |
| 3729 |
/* UNPREDICTABLE cases for bad immediates: we choose to
|
| 3730 |
* UNDEF to avoid generating huge numbers of TCG ops
|
| 3731 |
*/
|
| 3732 |
return 1; |
| 3733 |
} |
| 3734 |
if (rn == 15 && w) { |
| 3735 |
/* writeback to PC is UNPREDICTABLE, we choose to UNDEF */
|
| 3736 |
return 1; |
| 3737 |
} |
| 3738 |
|
| 3739 |
if (s->thumb && rn == 15) { |
| 3740 |
/* This is actually UNPREDICTABLE */
|
| 3741 |
addr = tcg_temp_new_i32(); |
| 3742 |
tcg_gen_movi_i32(addr, s->pc & ~2);
|
| 3743 |
} else {
|
| 3744 |
addr = load_reg(s, rn); |
| 3745 |
} |
| 3746 |
if (insn & (1 << 24)) /* pre-decrement */ |
| 3747 |
tcg_gen_addi_i32(addr, addr, -((insn & 0xff) << 2)); |
| 3748 |
|
| 3749 |
if (dp)
|
| 3750 |
offset = 8;
|
| 3751 |
else
|
| 3752 |
offset = 4;
|
| 3753 |
for (i = 0; i < n; i++) { |
| 3754 |
if (insn & ARM_CP_RW_BIT) {
|
| 3755 |
/* load */
|
| 3756 |
gen_vfp_ld(s, dp, addr); |
| 3757 |
gen_mov_vreg_F0(dp, rd + i); |
| 3758 |
} else {
|
| 3759 |
/* store */
|
| 3760 |
gen_mov_F0_vreg(dp, rd + i); |
| 3761 |
gen_vfp_st(s, dp, addr); |
| 3762 |
} |
| 3763 |
tcg_gen_addi_i32(addr, addr, offset); |
| 3764 |
} |
| 3765 |
if (w) {
|
| 3766 |
/* writeback */
|
| 3767 |
if (insn & (1 << 24)) |
| 3768 |
offset = -offset * n; |
| 3769 |
else if (dp && (insn & 1)) |
| 3770 |
offset = 4;
|
| 3771 |
else
|
| 3772 |
offset = 0;
|
| 3773 |
|
| 3774 |
if (offset != 0) |
| 3775 |
tcg_gen_addi_i32(addr, addr, offset); |
| 3776 |
store_reg(s, rn, addr); |
| 3777 |
} else {
|
| 3778 |
tcg_temp_free_i32(addr); |
| 3779 |
} |
| 3780 |
} |
| 3781 |
} |
| 3782 |
break;
|
| 3783 |
default:
|
| 3784 |
/* Should never happen. */
|
| 3785 |
return 1; |
| 3786 |
} |
| 3787 |
return 0; |
| 3788 |
} |
| 3789 |
|
| 3790 |
static inline void gen_goto_tb(DisasContext *s, int n, target_ulong dest) |
| 3791 |
{
|
| 3792 |
TranslationBlock *tb; |
| 3793 |
|
| 3794 |
tb = s->tb; |
| 3795 |
if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK)) {
|
| 3796 |
tcg_gen_goto_tb(n); |
| 3797 |
gen_set_pc_im(s, dest); |
| 3798 |
tcg_gen_exit_tb((uintptr_t)tb + n); |
| 3799 |
} else {
|
| 3800 |
gen_set_pc_im(s, dest); |
| 3801 |
tcg_gen_exit_tb(0);
|
| 3802 |
} |
| 3803 |
} |
| 3804 |
|
| 3805 |
static inline void gen_jmp (DisasContext *s, uint32_t dest) |
| 3806 |
{
|
| 3807 |
if (unlikely(s->singlestep_enabled)) {
|
| 3808 |
/* An indirect jump so that we still trigger the debug exception. */
|
| 3809 |
if (s->thumb)
|
| 3810 |
dest |= 1;
|
| 3811 |
gen_bx_im(s, dest); |
| 3812 |
} else {
|
| 3813 |
gen_goto_tb(s, 0, dest);
|
| 3814 |
s->is_jmp = DISAS_TB_JUMP; |
| 3815 |
} |
| 3816 |
} |
| 3817 |
|
| 3818 |
static inline void gen_mulxy(TCGv_i32 t0, TCGv_i32 t1, int x, int y) |
| 3819 |
{
|
| 3820 |
if (x)
|
| 3821 |
tcg_gen_sari_i32(t0, t0, 16);
|
| 3822 |
else
|
| 3823 |
gen_sxth(t0); |
| 3824 |
if (y)
|
| 3825 |
tcg_gen_sari_i32(t1, t1, 16);
|
| 3826 |
else
|
| 3827 |
gen_sxth(t1); |
| 3828 |
tcg_gen_mul_i32(t0, t0, t1); |
| 3829 |
} |
| 3830 |
|
| 3831 |
/* Return the mask of PSR bits set by a MSR instruction. */
|
| 3832 |
static uint32_t msr_mask(CPUARMState *env, DisasContext *s, int flags, int spsr) { |
| 3833 |
uint32_t mask; |
| 3834 |
|
| 3835 |
mask = 0;
|
| 3836 |
if (flags & (1 << 0)) |
| 3837 |
mask |= 0xff;
|
| 3838 |
if (flags & (1 << 1)) |
| 3839 |
mask |= 0xff00;
|
| 3840 |
if (flags & (1 << 2)) |
| 3841 |
mask |= 0xff0000;
|
| 3842 |
if (flags & (1 << 3)) |
| 3843 |
mask |= 0xff000000;
|
| 3844 |
|
| 3845 |
/* Mask out undefined bits. */
|
| 3846 |
mask &= ~CPSR_RESERVED; |
| 3847 |
if (!arm_feature(env, ARM_FEATURE_V4T))
|
| 3848 |
mask &= ~CPSR_T; |
| 3849 |
if (!arm_feature(env, ARM_FEATURE_V5))
|
| 3850 |
mask &= ~CPSR_Q; /* V5TE in reality*/
|
| 3851 |
if (!arm_feature(env, ARM_FEATURE_V6))
|
| 3852 |
mask &= ~(CPSR_E | CPSR_GE); |
| 3853 |
if (!arm_feature(env, ARM_FEATURE_THUMB2))
|
| 3854 |
mask &= ~CPSR_IT; |
| 3855 |
/* Mask out execution state bits. */
|
| 3856 |
if (!spsr)
|
| 3857 |
mask &= ~CPSR_EXEC; |
| 3858 |
/* Mask out privileged bits. */
|
| 3859 |
if (IS_USER(s))
|
| 3860 |
mask &= CPSR_USER; |
| 3861 |
return mask;
|
| 3862 |
} |
| 3863 |
|
| 3864 |
/* Returns nonzero if access to the PSR is not permitted. Marks t0 as dead. */
|
| 3865 |
static int gen_set_psr(DisasContext *s, uint32_t mask, int spsr, TCGv_i32 t0) |
| 3866 |
{
|
| 3867 |
TCGv_i32 tmp; |
| 3868 |
if (spsr) {
|
| 3869 |
/* ??? This is also undefined in system mode. */
|
| 3870 |
if (IS_USER(s))
|
| 3871 |
return 1; |
| 3872 |
|
| 3873 |
tmp = load_cpu_field(spsr); |
| 3874 |
tcg_gen_andi_i32(tmp, tmp, ~mask); |
| 3875 |
tcg_gen_andi_i32(t0, t0, mask); |
| 3876 |
tcg_gen_or_i32(tmp, tmp, t0); |
| 3877 |
store_cpu_field(tmp, spsr); |
| 3878 |
} else {
|
| 3879 |
gen_set_cpsr(t0, mask); |
| 3880 |
} |
| 3881 |
tcg_temp_free_i32(t0); |
| 3882 |
gen_lookup_tb(s); |
| 3883 |
return 0; |
| 3884 |
} |
| 3885 |
|
| 3886 |
/* Returns nonzero if access to the PSR is not permitted. */
|
| 3887 |
static int gen_set_psr_im(DisasContext *s, uint32_t mask, int spsr, uint32_t val) |
| 3888 |
{
|
| 3889 |
TCGv_i32 tmp; |
| 3890 |
tmp = tcg_temp_new_i32(); |
| 3891 |
tcg_gen_movi_i32(tmp, val); |
| 3892 |
return gen_set_psr(s, mask, spsr, tmp);
|
| 3893 |
} |
| 3894 |
|
| 3895 |
/* Generate an old-style exception return. Marks pc as dead. */
|
| 3896 |
static void gen_exception_return(DisasContext *s, TCGv_i32 pc) |
| 3897 |
{
|
| 3898 |
TCGv_i32 tmp; |
| 3899 |
store_reg(s, 15, pc);
|
| 3900 |
tmp = load_cpu_field(spsr); |
| 3901 |
gen_set_cpsr(tmp, 0xffffffff);
|
| 3902 |
tcg_temp_free_i32(tmp); |
| 3903 |
s->is_jmp = DISAS_UPDATE; |
| 3904 |
} |
| 3905 |
|
| 3906 |
/* Generate a v6 exception return. Marks both values as dead. */
|
| 3907 |
static void gen_rfe(DisasContext *s, TCGv_i32 pc, TCGv_i32 cpsr) |
| 3908 |
{
|
| 3909 |
gen_set_cpsr(cpsr, 0xffffffff);
|
| 3910 |
tcg_temp_free_i32(cpsr); |
| 3911 |
store_reg(s, 15, pc);
|
| 3912 |
s->is_jmp = DISAS_UPDATE; |
| 3913 |
} |
| 3914 |
|
| 3915 |
static inline void |
| 3916 |
gen_set_condexec (DisasContext *s) |
| 3917 |
{
|
| 3918 |
if (s->condexec_mask) {
|
| 3919 |
uint32_t val = (s->condexec_cond << 4) | (s->condexec_mask >> 1); |
| 3920 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 3921 |
tcg_gen_movi_i32(tmp, val); |
| 3922 |
store_cpu_field(tmp, condexec_bits); |
| 3923 |
} |
| 3924 |
} |
| 3925 |
|
| 3926 |
static void gen_exception_insn(DisasContext *s, int offset, int excp) |
| 3927 |
{
|
| 3928 |
gen_set_condexec(s); |
| 3929 |
gen_set_pc_im(s, s->pc - offset); |
| 3930 |
gen_exception(excp); |
| 3931 |
s->is_jmp = DISAS_JUMP; |
| 3932 |
} |
| 3933 |
|
| 3934 |
static void gen_nop_hint(DisasContext *s, int val) |
| 3935 |
{
|
| 3936 |
switch (val) {
|
| 3937 |
case 3: /* wfi */ |
| 3938 |
gen_set_pc_im(s, s->pc); |
| 3939 |
s->is_jmp = DISAS_WFI; |
| 3940 |
break;
|
| 3941 |
case 2: /* wfe */ |
| 3942 |
case 4: /* sev */ |
| 3943 |
case 5: /* sevl */ |
| 3944 |
/* TODO: Implement SEV, SEVL and WFE. May help SMP performance. */
|
| 3945 |
default: /* nop */ |
| 3946 |
break;
|
| 3947 |
} |
| 3948 |
} |
| 3949 |
|
| 3950 |
#define CPU_V001 cpu_V0, cpu_V0, cpu_V1
|
| 3951 |
|
| 3952 |
static inline void gen_neon_add(int size, TCGv_i32 t0, TCGv_i32 t1) |
| 3953 |
{
|
| 3954 |
switch (size) {
|
| 3955 |
case 0: gen_helper_neon_add_u8(t0, t0, t1); break; |
| 3956 |
case 1: gen_helper_neon_add_u16(t0, t0, t1); break; |
| 3957 |
case 2: tcg_gen_add_i32(t0, t0, t1); break; |
| 3958 |
default: abort();
|
| 3959 |
} |
| 3960 |
} |
| 3961 |
|
| 3962 |
static inline void gen_neon_rsb(int size, TCGv_i32 t0, TCGv_i32 t1) |
| 3963 |
{
|
| 3964 |
switch (size) {
|
| 3965 |
case 0: gen_helper_neon_sub_u8(t0, t1, t0); break; |
| 3966 |
case 1: gen_helper_neon_sub_u16(t0, t1, t0); break; |
| 3967 |
case 2: tcg_gen_sub_i32(t0, t1, t0); break; |
| 3968 |
default: return; |
| 3969 |
} |
| 3970 |
} |
| 3971 |
|
| 3972 |
/* 32-bit pairwise ops end up the same as the elementwise versions. */
|
| 3973 |
#define gen_helper_neon_pmax_s32 gen_helper_neon_max_s32
|
| 3974 |
#define gen_helper_neon_pmax_u32 gen_helper_neon_max_u32
|
| 3975 |
#define gen_helper_neon_pmin_s32 gen_helper_neon_min_s32
|
| 3976 |
#define gen_helper_neon_pmin_u32 gen_helper_neon_min_u32
|
| 3977 |
|
| 3978 |
#define GEN_NEON_INTEGER_OP_ENV(name) do { \ |
| 3979 |
switch ((size << 1) | u) { \ |
| 3980 |
case 0: \ |
| 3981 |
gen_helper_neon_##name##_s8(tmp, cpu_env, tmp, tmp2); \ |
| 3982 |
break; \
|
| 3983 |
case 1: \ |
| 3984 |
gen_helper_neon_##name##_u8(tmp, cpu_env, tmp, tmp2); \ |
| 3985 |
break; \
|
| 3986 |
case 2: \ |
| 3987 |
gen_helper_neon_##name##_s16(tmp, cpu_env, tmp, tmp2); \ |
| 3988 |
break; \
|
| 3989 |
case 3: \ |
| 3990 |
gen_helper_neon_##name##_u16(tmp, cpu_env, tmp, tmp2); \ |
| 3991 |
break; \
|
| 3992 |
case 4: \ |
| 3993 |
gen_helper_neon_##name##_s32(tmp, cpu_env, tmp, tmp2); \ |
| 3994 |
break; \
|
| 3995 |
case 5: \ |
| 3996 |
gen_helper_neon_##name##_u32(tmp, cpu_env, tmp, tmp2); \ |
| 3997 |
break; \
|
| 3998 |
default: return 1; \ |
| 3999 |
}} while (0) |
| 4000 |
|
| 4001 |
#define GEN_NEON_INTEGER_OP(name) do { \ |
| 4002 |
switch ((size << 1) | u) { \ |
| 4003 |
case 0: \ |
| 4004 |
gen_helper_neon_##name##_s8(tmp, tmp, tmp2); \ |
| 4005 |
break; \
|
| 4006 |
case 1: \ |
| 4007 |
gen_helper_neon_##name##_u8(tmp, tmp, tmp2); \ |
| 4008 |
break; \
|
| 4009 |
case 2: \ |
| 4010 |
gen_helper_neon_##name##_s16(tmp, tmp, tmp2); \ |
| 4011 |
break; \
|
| 4012 |
case 3: \ |
| 4013 |
gen_helper_neon_##name##_u16(tmp, tmp, tmp2); \ |
| 4014 |
break; \
|
| 4015 |
case 4: \ |
| 4016 |
gen_helper_neon_##name##_s32(tmp, tmp, tmp2); \ |
| 4017 |
break; \
|
| 4018 |
case 5: \ |
| 4019 |
gen_helper_neon_##name##_u32(tmp, tmp, tmp2); \ |
| 4020 |
break; \
|
| 4021 |
default: return 1; \ |
| 4022 |
}} while (0) |
| 4023 |
|
| 4024 |
static TCGv_i32 neon_load_scratch(int scratch) |
| 4025 |
{
|
| 4026 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 4027 |
tcg_gen_ld_i32(tmp, cpu_env, offsetof(CPUARMState, vfp.scratch[scratch])); |
| 4028 |
return tmp;
|
| 4029 |
} |
| 4030 |
|
| 4031 |
static void neon_store_scratch(int scratch, TCGv_i32 var) |
| 4032 |
{
|
| 4033 |
tcg_gen_st_i32(var, cpu_env, offsetof(CPUARMState, vfp.scratch[scratch])); |
| 4034 |
tcg_temp_free_i32(var); |
| 4035 |
} |
| 4036 |
|
| 4037 |
static inline TCGv_i32 neon_get_scalar(int size, int reg) |
| 4038 |
{
|
| 4039 |
TCGv_i32 tmp; |
| 4040 |
if (size == 1) { |
| 4041 |
tmp = neon_load_reg(reg & 7, reg >> 4); |
| 4042 |
if (reg & 8) { |
| 4043 |
gen_neon_dup_high16(tmp); |
| 4044 |
} else {
|
| 4045 |
gen_neon_dup_low16(tmp); |
| 4046 |
} |
| 4047 |
} else {
|
| 4048 |
tmp = neon_load_reg(reg & 15, reg >> 4); |
| 4049 |
} |
| 4050 |
return tmp;
|
| 4051 |
} |
| 4052 |
|
| 4053 |
static int gen_neon_unzip(int rd, int rm, int size, int q) |
| 4054 |
{
|
| 4055 |
TCGv_i32 tmp, tmp2; |
| 4056 |
if (!q && size == 2) { |
| 4057 |
return 1; |
| 4058 |
} |
| 4059 |
tmp = tcg_const_i32(rd); |
| 4060 |
tmp2 = tcg_const_i32(rm); |
| 4061 |
if (q) {
|
| 4062 |
switch (size) {
|
| 4063 |
case 0: |
| 4064 |
gen_helper_neon_qunzip8(cpu_env, tmp, tmp2); |
| 4065 |
break;
|
| 4066 |
case 1: |
| 4067 |
gen_helper_neon_qunzip16(cpu_env, tmp, tmp2); |
| 4068 |
break;
|
| 4069 |
case 2: |
| 4070 |
gen_helper_neon_qunzip32(cpu_env, tmp, tmp2); |
| 4071 |
break;
|
| 4072 |
default:
|
| 4073 |
abort(); |
| 4074 |
} |
| 4075 |
} else {
|
| 4076 |
switch (size) {
|
| 4077 |
case 0: |
| 4078 |
gen_helper_neon_unzip8(cpu_env, tmp, tmp2); |
| 4079 |
break;
|
| 4080 |
case 1: |
| 4081 |
gen_helper_neon_unzip16(cpu_env, tmp, tmp2); |
| 4082 |
break;
|
| 4083 |
default:
|
| 4084 |
abort(); |
| 4085 |
} |
| 4086 |
} |
| 4087 |
tcg_temp_free_i32(tmp); |
| 4088 |
tcg_temp_free_i32(tmp2); |
| 4089 |
return 0; |
| 4090 |
} |
| 4091 |
|
| 4092 |
static int gen_neon_zip(int rd, int rm, int size, int q) |
| 4093 |
{
|
| 4094 |
TCGv_i32 tmp, tmp2; |
| 4095 |
if (!q && size == 2) { |
| 4096 |
return 1; |
| 4097 |
} |
| 4098 |
tmp = tcg_const_i32(rd); |
| 4099 |
tmp2 = tcg_const_i32(rm); |
| 4100 |
if (q) {
|
| 4101 |
switch (size) {
|
| 4102 |
case 0: |
| 4103 |
gen_helper_neon_qzip8(cpu_env, tmp, tmp2); |
| 4104 |
break;
|
| 4105 |
case 1: |
| 4106 |
gen_helper_neon_qzip16(cpu_env, tmp, tmp2); |
| 4107 |
break;
|
| 4108 |
case 2: |
| 4109 |
gen_helper_neon_qzip32(cpu_env, tmp, tmp2); |
| 4110 |
break;
|
| 4111 |
default:
|
| 4112 |
abort(); |
| 4113 |
} |
| 4114 |
} else {
|
| 4115 |
switch (size) {
|
| 4116 |
case 0: |
| 4117 |
gen_helper_neon_zip8(cpu_env, tmp, tmp2); |
| 4118 |
break;
|
| 4119 |
case 1: |
| 4120 |
gen_helper_neon_zip16(cpu_env, tmp, tmp2); |
| 4121 |
break;
|
| 4122 |
default:
|
| 4123 |
abort(); |
| 4124 |
} |
| 4125 |
} |
| 4126 |
tcg_temp_free_i32(tmp); |
| 4127 |
tcg_temp_free_i32(tmp2); |
| 4128 |
return 0; |
| 4129 |
} |
| 4130 |
|
| 4131 |
static void gen_neon_trn_u8(TCGv_i32 t0, TCGv_i32 t1) |
| 4132 |
{
|
| 4133 |
TCGv_i32 rd, tmp; |
| 4134 |
|
| 4135 |
rd = tcg_temp_new_i32(); |
| 4136 |
tmp = tcg_temp_new_i32(); |
| 4137 |
|
| 4138 |
tcg_gen_shli_i32(rd, t0, 8);
|
| 4139 |
tcg_gen_andi_i32(rd, rd, 0xff00ff00);
|
| 4140 |
tcg_gen_andi_i32(tmp, t1, 0x00ff00ff);
|
| 4141 |
tcg_gen_or_i32(rd, rd, tmp); |
| 4142 |
|
| 4143 |
tcg_gen_shri_i32(t1, t1, 8);
|
| 4144 |
tcg_gen_andi_i32(t1, t1, 0x00ff00ff);
|
| 4145 |
tcg_gen_andi_i32(tmp, t0, 0xff00ff00);
|
| 4146 |
tcg_gen_or_i32(t1, t1, tmp); |
| 4147 |
tcg_gen_mov_i32(t0, rd); |
| 4148 |
|
| 4149 |
tcg_temp_free_i32(tmp); |
| 4150 |
tcg_temp_free_i32(rd); |
| 4151 |
} |
| 4152 |
|
| 4153 |
static void gen_neon_trn_u16(TCGv_i32 t0, TCGv_i32 t1) |
| 4154 |
{
|
| 4155 |
TCGv_i32 rd, tmp; |
| 4156 |
|
| 4157 |
rd = tcg_temp_new_i32(); |
| 4158 |
tmp = tcg_temp_new_i32(); |
| 4159 |
|
| 4160 |
tcg_gen_shli_i32(rd, t0, 16);
|
| 4161 |
tcg_gen_andi_i32(tmp, t1, 0xffff);
|
| 4162 |
tcg_gen_or_i32(rd, rd, tmp); |
| 4163 |
tcg_gen_shri_i32(t1, t1, 16);
|
| 4164 |
tcg_gen_andi_i32(tmp, t0, 0xffff0000);
|
| 4165 |
tcg_gen_or_i32(t1, t1, tmp); |
| 4166 |
tcg_gen_mov_i32(t0, rd); |
| 4167 |
|
| 4168 |
tcg_temp_free_i32(tmp); |
| 4169 |
tcg_temp_free_i32(rd); |
| 4170 |
} |
| 4171 |
|
| 4172 |
|
| 4173 |
static struct { |
| 4174 |
int nregs;
|
| 4175 |
int interleave;
|
| 4176 |
int spacing;
|
| 4177 |
} neon_ls_element_type[11] = {
|
| 4178 |
{4, 4, 1},
|
| 4179 |
{4, 4, 2},
|
| 4180 |
{4, 1, 1},
|
| 4181 |
{4, 2, 1},
|
| 4182 |
{3, 3, 1},
|
| 4183 |
{3, 3, 2},
|
| 4184 |
{3, 1, 1},
|
| 4185 |
{1, 1, 1},
|
| 4186 |
{2, 2, 1},
|
| 4187 |
{2, 2, 2},
|
| 4188 |
{2, 1, 1}
|
| 4189 |
}; |
| 4190 |
|
| 4191 |
/* Translate a NEON load/store element instruction. Return nonzero if the
|
| 4192 |
instruction is invalid. */
|
| 4193 |
static int disas_neon_ls_insn(CPUARMState * env, DisasContext *s, uint32_t insn) |
| 4194 |
{
|
| 4195 |
int rd, rn, rm;
|
| 4196 |
int op;
|
| 4197 |
int nregs;
|
| 4198 |
int interleave;
|
| 4199 |
int spacing;
|
| 4200 |
int stride;
|
| 4201 |
int size;
|
| 4202 |
int reg;
|
| 4203 |
int pass;
|
| 4204 |
int load;
|
| 4205 |
int shift;
|
| 4206 |
int n;
|
| 4207 |
TCGv_i32 addr; |
| 4208 |
TCGv_i32 tmp; |
| 4209 |
TCGv_i32 tmp2; |
| 4210 |
TCGv_i64 tmp64; |
| 4211 |
|
| 4212 |
if (!s->vfp_enabled)
|
| 4213 |
return 1; |
| 4214 |
VFP_DREG_D(rd, insn); |
| 4215 |
rn = (insn >> 16) & 0xf; |
| 4216 |
rm = insn & 0xf;
|
| 4217 |
load = (insn & (1 << 21)) != 0; |
| 4218 |
if ((insn & (1 << 23)) == 0) { |
| 4219 |
/* Load store all elements. */
|
| 4220 |
op = (insn >> 8) & 0xf; |
| 4221 |
size = (insn >> 6) & 3; |
| 4222 |
if (op > 10) |
| 4223 |
return 1; |
| 4224 |
/* Catch UNDEF cases for bad values of align field */
|
| 4225 |
switch (op & 0xc) { |
| 4226 |
case 4: |
| 4227 |
if (((insn >> 5) & 1) == 1) { |
| 4228 |
return 1; |
| 4229 |
} |
| 4230 |
break;
|
| 4231 |
case 8: |
| 4232 |
if (((insn >> 4) & 3) == 3) { |
| 4233 |
return 1; |
| 4234 |
} |
| 4235 |
break;
|
| 4236 |
default:
|
| 4237 |
break;
|
| 4238 |
} |
| 4239 |
nregs = neon_ls_element_type[op].nregs; |
| 4240 |
interleave = neon_ls_element_type[op].interleave; |
| 4241 |
spacing = neon_ls_element_type[op].spacing; |
| 4242 |
if (size == 3 && (interleave | spacing) != 1) |
| 4243 |
return 1; |
| 4244 |
addr = tcg_temp_new_i32(); |
| 4245 |
load_reg_var(s, addr, rn); |
| 4246 |
stride = (1 << size) * interleave;
|
| 4247 |
for (reg = 0; reg < nregs; reg++) { |
| 4248 |
if (interleave > 2 || (interleave == 2 && nregs == 2)) { |
| 4249 |
load_reg_var(s, addr, rn); |
| 4250 |
tcg_gen_addi_i32(addr, addr, (1 << size) * reg);
|
| 4251 |
} else if (interleave == 2 && nregs == 4 && reg == 2) { |
| 4252 |
load_reg_var(s, addr, rn); |
| 4253 |
tcg_gen_addi_i32(addr, addr, 1 << size);
|
| 4254 |
} |
| 4255 |
if (size == 3) { |
| 4256 |
tmp64 = tcg_temp_new_i64(); |
| 4257 |
if (load) {
|
| 4258 |
gen_aa32_ld64(tmp64, addr, IS_USER(s)); |
| 4259 |
neon_store_reg64(tmp64, rd); |
| 4260 |
} else {
|
| 4261 |
neon_load_reg64(tmp64, rd); |
| 4262 |
gen_aa32_st64(tmp64, addr, IS_USER(s)); |
| 4263 |
} |
| 4264 |
tcg_temp_free_i64(tmp64); |
| 4265 |
tcg_gen_addi_i32(addr, addr, stride); |
| 4266 |
} else {
|
| 4267 |
for (pass = 0; pass < 2; pass++) { |
| 4268 |
if (size == 2) { |
| 4269 |
if (load) {
|
| 4270 |
tmp = tcg_temp_new_i32(); |
| 4271 |
gen_aa32_ld32u(tmp, addr, IS_USER(s)); |
| 4272 |
neon_store_reg(rd, pass, tmp); |
| 4273 |
} else {
|
| 4274 |
tmp = neon_load_reg(rd, pass); |
| 4275 |
gen_aa32_st32(tmp, addr, IS_USER(s)); |
| 4276 |
tcg_temp_free_i32(tmp); |
| 4277 |
} |
| 4278 |
tcg_gen_addi_i32(addr, addr, stride); |
| 4279 |
} else if (size == 1) { |
| 4280 |
if (load) {
|
| 4281 |
tmp = tcg_temp_new_i32(); |
| 4282 |
gen_aa32_ld16u(tmp, addr, IS_USER(s)); |
| 4283 |
tcg_gen_addi_i32(addr, addr, stride); |
| 4284 |
tmp2 = tcg_temp_new_i32(); |
| 4285 |
gen_aa32_ld16u(tmp2, addr, IS_USER(s)); |
| 4286 |
tcg_gen_addi_i32(addr, addr, stride); |
| 4287 |
tcg_gen_shli_i32(tmp2, tmp2, 16);
|
| 4288 |
tcg_gen_or_i32(tmp, tmp, tmp2); |
| 4289 |
tcg_temp_free_i32(tmp2); |
| 4290 |
neon_store_reg(rd, pass, tmp); |
| 4291 |
} else {
|
| 4292 |
tmp = neon_load_reg(rd, pass); |
| 4293 |
tmp2 = tcg_temp_new_i32(); |
| 4294 |
tcg_gen_shri_i32(tmp2, tmp, 16);
|
| 4295 |
gen_aa32_st16(tmp, addr, IS_USER(s)); |
| 4296 |
tcg_temp_free_i32(tmp); |
| 4297 |
tcg_gen_addi_i32(addr, addr, stride); |
| 4298 |
gen_aa32_st16(tmp2, addr, IS_USER(s)); |
| 4299 |
tcg_temp_free_i32(tmp2); |
| 4300 |
tcg_gen_addi_i32(addr, addr, stride); |
| 4301 |
} |
| 4302 |
} else /* size == 0 */ { |
| 4303 |
if (load) {
|
| 4304 |
TCGV_UNUSED_I32(tmp2); |
| 4305 |
for (n = 0; n < 4; n++) { |
| 4306 |
tmp = tcg_temp_new_i32(); |
| 4307 |
gen_aa32_ld8u(tmp, addr, IS_USER(s)); |
| 4308 |
tcg_gen_addi_i32(addr, addr, stride); |
| 4309 |
if (n == 0) { |
| 4310 |
tmp2 = tmp; |
| 4311 |
} else {
|
| 4312 |
tcg_gen_shli_i32(tmp, tmp, n * 8);
|
| 4313 |
tcg_gen_or_i32(tmp2, tmp2, tmp); |
| 4314 |
tcg_temp_free_i32(tmp); |
| 4315 |
} |
| 4316 |
} |
| 4317 |
neon_store_reg(rd, pass, tmp2); |
| 4318 |
} else {
|
| 4319 |
tmp2 = neon_load_reg(rd, pass); |
| 4320 |
for (n = 0; n < 4; n++) { |
| 4321 |
tmp = tcg_temp_new_i32(); |
| 4322 |
if (n == 0) { |
| 4323 |
tcg_gen_mov_i32(tmp, tmp2); |
| 4324 |
} else {
|
| 4325 |
tcg_gen_shri_i32(tmp, tmp2, n * 8);
|
| 4326 |
} |
| 4327 |
gen_aa32_st8(tmp, addr, IS_USER(s)); |
| 4328 |
tcg_temp_free_i32(tmp); |
| 4329 |
tcg_gen_addi_i32(addr, addr, stride); |
| 4330 |
} |
| 4331 |
tcg_temp_free_i32(tmp2); |
| 4332 |
} |
| 4333 |
} |
| 4334 |
} |
| 4335 |
} |
| 4336 |
rd += spacing; |
| 4337 |
} |
| 4338 |
tcg_temp_free_i32(addr); |
| 4339 |
stride = nregs * 8;
|
| 4340 |
} else {
|
| 4341 |
size = (insn >> 10) & 3; |
| 4342 |
if (size == 3) { |
| 4343 |
/* Load single element to all lanes. */
|
| 4344 |
int a = (insn >> 4) & 1; |
| 4345 |
if (!load) {
|
| 4346 |
return 1; |
| 4347 |
} |
| 4348 |
size = (insn >> 6) & 3; |
| 4349 |
nregs = ((insn >> 8) & 3) + 1; |
| 4350 |
|
| 4351 |
if (size == 3) { |
| 4352 |
if (nregs != 4 || a == 0) { |
| 4353 |
return 1; |
| 4354 |
} |
| 4355 |
/* For VLD4 size==3 a == 1 means 32 bits at 16 byte alignment */
|
| 4356 |
size = 2;
|
| 4357 |
} |
| 4358 |
if (nregs == 1 && a == 1 && size == 0) { |
| 4359 |
return 1; |
| 4360 |
} |
| 4361 |
if (nregs == 3 && a == 1) { |
| 4362 |
return 1; |
| 4363 |
} |
| 4364 |
addr = tcg_temp_new_i32(); |
| 4365 |
load_reg_var(s, addr, rn); |
| 4366 |
if (nregs == 1) { |
| 4367 |
/* VLD1 to all lanes: bit 5 indicates how many Dregs to write */
|
| 4368 |
tmp = gen_load_and_replicate(s, addr, size); |
| 4369 |
tcg_gen_st_i32(tmp, cpu_env, neon_reg_offset(rd, 0));
|
| 4370 |
tcg_gen_st_i32(tmp, cpu_env, neon_reg_offset(rd, 1));
|
| 4371 |
if (insn & (1 << 5)) { |
| 4372 |
tcg_gen_st_i32(tmp, cpu_env, neon_reg_offset(rd + 1, 0)); |
| 4373 |
tcg_gen_st_i32(tmp, cpu_env, neon_reg_offset(rd + 1, 1)); |
| 4374 |
} |
| 4375 |
tcg_temp_free_i32(tmp); |
| 4376 |
} else {
|
| 4377 |
/* VLD2/3/4 to all lanes: bit 5 indicates register stride */
|
| 4378 |
stride = (insn & (1 << 5)) ? 2 : 1; |
| 4379 |
for (reg = 0; reg < nregs; reg++) { |
| 4380 |
tmp = gen_load_and_replicate(s, addr, size); |
| 4381 |
tcg_gen_st_i32(tmp, cpu_env, neon_reg_offset(rd, 0));
|
| 4382 |
tcg_gen_st_i32(tmp, cpu_env, neon_reg_offset(rd, 1));
|
| 4383 |
tcg_temp_free_i32(tmp); |
| 4384 |
tcg_gen_addi_i32(addr, addr, 1 << size);
|
| 4385 |
rd += stride; |
| 4386 |
} |
| 4387 |
} |
| 4388 |
tcg_temp_free_i32(addr); |
| 4389 |
stride = (1 << size) * nregs;
|
| 4390 |
} else {
|
| 4391 |
/* Single element. */
|
| 4392 |
int idx = (insn >> 4) & 0xf; |
| 4393 |
pass = (insn >> 7) & 1; |
| 4394 |
switch (size) {
|
| 4395 |
case 0: |
| 4396 |
shift = ((insn >> 5) & 3) * 8; |
| 4397 |
stride = 1;
|
| 4398 |
break;
|
| 4399 |
case 1: |
| 4400 |
shift = ((insn >> 6) & 1) * 16; |
| 4401 |
stride = (insn & (1 << 5)) ? 2 : 1; |
| 4402 |
break;
|
| 4403 |
case 2: |
| 4404 |
shift = 0;
|
| 4405 |
stride = (insn & (1 << 6)) ? 2 : 1; |
| 4406 |
break;
|
| 4407 |
default:
|
| 4408 |
abort(); |
| 4409 |
} |
| 4410 |
nregs = ((insn >> 8) & 3) + 1; |
| 4411 |
/* Catch the UNDEF cases. This is unavoidably a bit messy. */
|
| 4412 |
switch (nregs) {
|
| 4413 |
case 1: |
| 4414 |
if (((idx & (1 << size)) != 0) || |
| 4415 |
(size == 2 && ((idx & 3) == 1 || (idx & 3) == 2))) { |
| 4416 |
return 1; |
| 4417 |
} |
| 4418 |
break;
|
| 4419 |
case 3: |
| 4420 |
if ((idx & 1) != 0) { |
| 4421 |
return 1; |
| 4422 |
} |
| 4423 |
/* fall through */
|
| 4424 |
case 2: |
| 4425 |
if (size == 2 && (idx & 2) != 0) { |
| 4426 |
return 1; |
| 4427 |
} |
| 4428 |
break;
|
| 4429 |
case 4: |
| 4430 |
if ((size == 2) && ((idx & 3) == 3)) { |
| 4431 |
return 1; |
| 4432 |
} |
| 4433 |
break;
|
| 4434 |
default:
|
| 4435 |
abort(); |
| 4436 |
} |
| 4437 |
if ((rd + stride * (nregs - 1)) > 31) { |
| 4438 |
/* Attempts to write off the end of the register file
|
| 4439 |
* are UNPREDICTABLE; we choose to UNDEF because otherwise
|
| 4440 |
* the neon_load_reg() would write off the end of the array.
|
| 4441 |
*/
|
| 4442 |
return 1; |
| 4443 |
} |
| 4444 |
addr = tcg_temp_new_i32(); |
| 4445 |
load_reg_var(s, addr, rn); |
| 4446 |
for (reg = 0; reg < nregs; reg++) { |
| 4447 |
if (load) {
|
| 4448 |
tmp = tcg_temp_new_i32(); |
| 4449 |
switch (size) {
|
| 4450 |
case 0: |
| 4451 |
gen_aa32_ld8u(tmp, addr, IS_USER(s)); |
| 4452 |
break;
|
| 4453 |
case 1: |
| 4454 |
gen_aa32_ld16u(tmp, addr, IS_USER(s)); |
| 4455 |
break;
|
| 4456 |
case 2: |
| 4457 |
gen_aa32_ld32u(tmp, addr, IS_USER(s)); |
| 4458 |
break;
|
| 4459 |
default: /* Avoid compiler warnings. */ |
| 4460 |
abort(); |
| 4461 |
} |
| 4462 |
if (size != 2) { |
| 4463 |
tmp2 = neon_load_reg(rd, pass); |
| 4464 |
tcg_gen_deposit_i32(tmp, tmp2, tmp, |
| 4465 |
shift, size ? 16 : 8); |
| 4466 |
tcg_temp_free_i32(tmp2); |
| 4467 |
} |
| 4468 |
neon_store_reg(rd, pass, tmp); |
| 4469 |
} else { /* Store */ |
| 4470 |
tmp = neon_load_reg(rd, pass); |
| 4471 |
if (shift)
|
| 4472 |
tcg_gen_shri_i32(tmp, tmp, shift); |
| 4473 |
switch (size) {
|
| 4474 |
case 0: |
| 4475 |
gen_aa32_st8(tmp, addr, IS_USER(s)); |
| 4476 |
break;
|
| 4477 |
case 1: |
| 4478 |
gen_aa32_st16(tmp, addr, IS_USER(s)); |
| 4479 |
break;
|
| 4480 |
case 2: |
| 4481 |
gen_aa32_st32(tmp, addr, IS_USER(s)); |
| 4482 |
break;
|
| 4483 |
} |
| 4484 |
tcg_temp_free_i32(tmp); |
| 4485 |
} |
| 4486 |
rd += stride; |
| 4487 |
tcg_gen_addi_i32(addr, addr, 1 << size);
|
| 4488 |
} |
| 4489 |
tcg_temp_free_i32(addr); |
| 4490 |
stride = nregs * (1 << size);
|
| 4491 |
} |
| 4492 |
} |
| 4493 |
if (rm != 15) { |
| 4494 |
TCGv_i32 base; |
| 4495 |
|
| 4496 |
base = load_reg(s, rn); |
| 4497 |
if (rm == 13) { |
| 4498 |
tcg_gen_addi_i32(base, base, stride); |
| 4499 |
} else {
|
| 4500 |
TCGv_i32 index; |
| 4501 |
index = load_reg(s, rm); |
| 4502 |
tcg_gen_add_i32(base, base, index); |
| 4503 |
tcg_temp_free_i32(index); |
| 4504 |
} |
| 4505 |
store_reg(s, rn, base); |
| 4506 |
} |
| 4507 |
return 0; |
| 4508 |
} |
| 4509 |
|
| 4510 |
/* Bitwise select. dest = c ? t : f. Clobbers T and F. */
|
| 4511 |
static void gen_neon_bsl(TCGv_i32 dest, TCGv_i32 t, TCGv_i32 f, TCGv_i32 c) |
| 4512 |
{
|
| 4513 |
tcg_gen_and_i32(t, t, c); |
| 4514 |
tcg_gen_andc_i32(f, f, c); |
| 4515 |
tcg_gen_or_i32(dest, t, f); |
| 4516 |
} |
| 4517 |
|
| 4518 |
static inline void gen_neon_narrow(int size, TCGv_i32 dest, TCGv_i64 src) |
| 4519 |
{
|
| 4520 |
switch (size) {
|
| 4521 |
case 0: gen_helper_neon_narrow_u8(dest, src); break; |
| 4522 |
case 1: gen_helper_neon_narrow_u16(dest, src); break; |
| 4523 |
case 2: tcg_gen_trunc_i64_i32(dest, src); break; |
| 4524 |
default: abort();
|
| 4525 |
} |
| 4526 |
} |
| 4527 |
|
| 4528 |
static inline void gen_neon_narrow_sats(int size, TCGv_i32 dest, TCGv_i64 src) |
| 4529 |
{
|
| 4530 |
switch (size) {
|
| 4531 |
case 0: gen_helper_neon_narrow_sat_s8(dest, cpu_env, src); break; |
| 4532 |
case 1: gen_helper_neon_narrow_sat_s16(dest, cpu_env, src); break; |
| 4533 |
case 2: gen_helper_neon_narrow_sat_s32(dest, cpu_env, src); break; |
| 4534 |
default: abort();
|
| 4535 |
} |
| 4536 |
} |
| 4537 |
|
| 4538 |
static inline void gen_neon_narrow_satu(int size, TCGv_i32 dest, TCGv_i64 src) |
| 4539 |
{
|
| 4540 |
switch (size) {
|
| 4541 |
case 0: gen_helper_neon_narrow_sat_u8(dest, cpu_env, src); break; |
| 4542 |
case 1: gen_helper_neon_narrow_sat_u16(dest, cpu_env, src); break; |
| 4543 |
case 2: gen_helper_neon_narrow_sat_u32(dest, cpu_env, src); break; |
| 4544 |
default: abort();
|
| 4545 |
} |
| 4546 |
} |
| 4547 |
|
| 4548 |
static inline void gen_neon_unarrow_sats(int size, TCGv_i32 dest, TCGv_i64 src) |
| 4549 |
{
|
| 4550 |
switch (size) {
|
| 4551 |
case 0: gen_helper_neon_unarrow_sat8(dest, cpu_env, src); break; |
| 4552 |
case 1: gen_helper_neon_unarrow_sat16(dest, cpu_env, src); break; |
| 4553 |
case 2: gen_helper_neon_unarrow_sat32(dest, cpu_env, src); break; |
| 4554 |
default: abort();
|
| 4555 |
} |
| 4556 |
} |
| 4557 |
|
| 4558 |
static inline void gen_neon_shift_narrow(int size, TCGv_i32 var, TCGv_i32 shift, |
| 4559 |
int q, int u) |
| 4560 |
{
|
| 4561 |
if (q) {
|
| 4562 |
if (u) {
|
| 4563 |
switch (size) {
|
| 4564 |
case 1: gen_helper_neon_rshl_u16(var, var, shift); break; |
| 4565 |
case 2: gen_helper_neon_rshl_u32(var, var, shift); break; |
| 4566 |
default: abort();
|
| 4567 |
} |
| 4568 |
} else {
|
| 4569 |
switch (size) {
|
| 4570 |
case 1: gen_helper_neon_rshl_s16(var, var, shift); break; |
| 4571 |
case 2: gen_helper_neon_rshl_s32(var, var, shift); break; |
| 4572 |
default: abort();
|
| 4573 |
} |
| 4574 |
} |
| 4575 |
} else {
|
| 4576 |
if (u) {
|
| 4577 |
switch (size) {
|
| 4578 |
case 1: gen_helper_neon_shl_u16(var, var, shift); break; |
| 4579 |
case 2: gen_helper_neon_shl_u32(var, var, shift); break; |
| 4580 |
default: abort();
|
| 4581 |
} |
| 4582 |
} else {
|
| 4583 |
switch (size) {
|
| 4584 |
case 1: gen_helper_neon_shl_s16(var, var, shift); break; |
| 4585 |
case 2: gen_helper_neon_shl_s32(var, var, shift); break; |
| 4586 |
default: abort();
|
| 4587 |
} |
| 4588 |
} |
| 4589 |
} |
| 4590 |
} |
| 4591 |
|
| 4592 |
static inline void gen_neon_widen(TCGv_i64 dest, TCGv_i32 src, int size, int u) |
| 4593 |
{
|
| 4594 |
if (u) {
|
| 4595 |
switch (size) {
|
| 4596 |
case 0: gen_helper_neon_widen_u8(dest, src); break; |
| 4597 |
case 1: gen_helper_neon_widen_u16(dest, src); break; |
| 4598 |
case 2: tcg_gen_extu_i32_i64(dest, src); break; |
| 4599 |
default: abort();
|
| 4600 |
} |
| 4601 |
} else {
|
| 4602 |
switch (size) {
|
| 4603 |
case 0: gen_helper_neon_widen_s8(dest, src); break; |
| 4604 |
case 1: gen_helper_neon_widen_s16(dest, src); break; |
| 4605 |
case 2: tcg_gen_ext_i32_i64(dest, src); break; |
| 4606 |
default: abort();
|
| 4607 |
} |
| 4608 |
} |
| 4609 |
tcg_temp_free_i32(src); |
| 4610 |
} |
| 4611 |
|
| 4612 |
static inline void gen_neon_addl(int size) |
| 4613 |
{
|
| 4614 |
switch (size) {
|
| 4615 |
case 0: gen_helper_neon_addl_u16(CPU_V001); break; |
| 4616 |
case 1: gen_helper_neon_addl_u32(CPU_V001); break; |
| 4617 |
case 2: tcg_gen_add_i64(CPU_V001); break; |
| 4618 |
default: abort();
|
| 4619 |
} |
| 4620 |
} |
| 4621 |
|
| 4622 |
static inline void gen_neon_subl(int size) |
| 4623 |
{
|
| 4624 |
switch (size) {
|
| 4625 |
case 0: gen_helper_neon_subl_u16(CPU_V001); break; |
| 4626 |
case 1: gen_helper_neon_subl_u32(CPU_V001); break; |
| 4627 |
case 2: tcg_gen_sub_i64(CPU_V001); break; |
| 4628 |
default: abort();
|
| 4629 |
} |
| 4630 |
} |
| 4631 |
|
| 4632 |
static inline void gen_neon_negl(TCGv_i64 var, int size) |
| 4633 |
{
|
| 4634 |
switch (size) {
|
| 4635 |
case 0: gen_helper_neon_negl_u16(var, var); break; |
| 4636 |
case 1: gen_helper_neon_negl_u32(var, var); break; |
| 4637 |
case 2: |
| 4638 |
tcg_gen_neg_i64(var, var); |
| 4639 |
break;
|
| 4640 |
default: abort();
|
| 4641 |
} |
| 4642 |
} |
| 4643 |
|
| 4644 |
static inline void gen_neon_addl_saturate(TCGv_i64 op0, TCGv_i64 op1, int size) |
| 4645 |
{
|
| 4646 |
switch (size) {
|
| 4647 |
case 1: gen_helper_neon_addl_saturate_s32(op0, cpu_env, op0, op1); break; |
| 4648 |
case 2: gen_helper_neon_addl_saturate_s64(op0, cpu_env, op0, op1); break; |
| 4649 |
default: abort();
|
| 4650 |
} |
| 4651 |
} |
| 4652 |
|
| 4653 |
static inline void gen_neon_mull(TCGv_i64 dest, TCGv_i32 a, TCGv_i32 b, |
| 4654 |
int size, int u) |
| 4655 |
{
|
| 4656 |
TCGv_i64 tmp; |
| 4657 |
|
| 4658 |
switch ((size << 1) | u) { |
| 4659 |
case 0: gen_helper_neon_mull_s8(dest, a, b); break; |
| 4660 |
case 1: gen_helper_neon_mull_u8(dest, a, b); break; |
| 4661 |
case 2: gen_helper_neon_mull_s16(dest, a, b); break; |
| 4662 |
case 3: gen_helper_neon_mull_u16(dest, a, b); break; |
| 4663 |
case 4: |
| 4664 |
tmp = gen_muls_i64_i32(a, b); |
| 4665 |
tcg_gen_mov_i64(dest, tmp); |
| 4666 |
tcg_temp_free_i64(tmp); |
| 4667 |
break;
|
| 4668 |
case 5: |
| 4669 |
tmp = gen_mulu_i64_i32(a, b); |
| 4670 |
tcg_gen_mov_i64(dest, tmp); |
| 4671 |
tcg_temp_free_i64(tmp); |
| 4672 |
break;
|
| 4673 |
default: abort();
|
| 4674 |
} |
| 4675 |
|
| 4676 |
/* gen_helper_neon_mull_[su]{8|16} do not free their parameters.
|
| 4677 |
Don't forget to clean them now. */
|
| 4678 |
if (size < 2) { |
| 4679 |
tcg_temp_free_i32(a); |
| 4680 |
tcg_temp_free_i32(b); |
| 4681 |
} |
| 4682 |
} |
| 4683 |
|
| 4684 |
static void gen_neon_narrow_op(int op, int u, int size, |
| 4685 |
TCGv_i32 dest, TCGv_i64 src) |
| 4686 |
{
|
| 4687 |
if (op) {
|
| 4688 |
if (u) {
|
| 4689 |
gen_neon_unarrow_sats(size, dest, src); |
| 4690 |
} else {
|
| 4691 |
gen_neon_narrow(size, dest, src); |
| 4692 |
} |
| 4693 |
} else {
|
| 4694 |
if (u) {
|
| 4695 |
gen_neon_narrow_satu(size, dest, src); |
| 4696 |
} else {
|
| 4697 |
gen_neon_narrow_sats(size, dest, src); |
| 4698 |
} |
| 4699 |
} |
| 4700 |
} |
| 4701 |
|
| 4702 |
/* Symbolic constants for op fields for Neon 3-register same-length.
|
| 4703 |
* The values correspond to bits [11:8,4]; see the ARM ARM DDI0406B
|
| 4704 |
* table A7-9.
|
| 4705 |
*/
|
| 4706 |
#define NEON_3R_VHADD 0 |
| 4707 |
#define NEON_3R_VQADD 1 |
| 4708 |
#define NEON_3R_VRHADD 2 |
| 4709 |
#define NEON_3R_LOGIC 3 /* VAND,VBIC,VORR,VMOV,VORN,VEOR,VBIF,VBIT,VBSL */ |
| 4710 |
#define NEON_3R_VHSUB 4 |
| 4711 |
#define NEON_3R_VQSUB 5 |
| 4712 |
#define NEON_3R_VCGT 6 |
| 4713 |
#define NEON_3R_VCGE 7 |
| 4714 |
#define NEON_3R_VSHL 8 |
| 4715 |
#define NEON_3R_VQSHL 9 |
| 4716 |
#define NEON_3R_VRSHL 10 |
| 4717 |
#define NEON_3R_VQRSHL 11 |
| 4718 |
#define NEON_3R_VMAX 12 |
| 4719 |
#define NEON_3R_VMIN 13 |
| 4720 |
#define NEON_3R_VABD 14 |
| 4721 |
#define NEON_3R_VABA 15 |
| 4722 |
#define NEON_3R_VADD_VSUB 16 |
| 4723 |
#define NEON_3R_VTST_VCEQ 17 |
| 4724 |
#define NEON_3R_VML 18 /* VMLA, VMLAL, VMLS, VMLSL */ |
| 4725 |
#define NEON_3R_VMUL 19 |
| 4726 |
#define NEON_3R_VPMAX 20 |
| 4727 |
#define NEON_3R_VPMIN 21 |
| 4728 |
#define NEON_3R_VQDMULH_VQRDMULH 22 |
| 4729 |
#define NEON_3R_VPADD 23 |
| 4730 |
#define NEON_3R_VFM 25 /* VFMA, VFMS : float fused multiply-add */ |
| 4731 |
#define NEON_3R_FLOAT_ARITH 26 /* float VADD, VSUB, VPADD, VABD */ |
| 4732 |
#define NEON_3R_FLOAT_MULTIPLY 27 /* float VMLA, VMLS, VMUL */ |
| 4733 |
#define NEON_3R_FLOAT_CMP 28 /* float VCEQ, VCGE, VCGT */ |
| 4734 |
#define NEON_3R_FLOAT_ACMP 29 /* float VACGE, VACGT, VACLE, VACLT */ |
| 4735 |
#define NEON_3R_FLOAT_MINMAX 30 /* float VMIN, VMAX */ |
| 4736 |
#define NEON_3R_FLOAT_MISC 31 /* float VRECPS, VRSQRTS, VMAXNM/MINNM */ |
| 4737 |
|
| 4738 |
static const uint8_t neon_3r_sizes[] = { |
| 4739 |
[NEON_3R_VHADD] = 0x7,
|
| 4740 |
[NEON_3R_VQADD] = 0xf,
|
| 4741 |
[NEON_3R_VRHADD] = 0x7,
|
| 4742 |
[NEON_3R_LOGIC] = 0xf, /* size field encodes op type */ |
| 4743 |
[NEON_3R_VHSUB] = 0x7,
|
| 4744 |
[NEON_3R_VQSUB] = 0xf,
|
| 4745 |
[NEON_3R_VCGT] = 0x7,
|
| 4746 |
[NEON_3R_VCGE] = 0x7,
|
| 4747 |
[NEON_3R_VSHL] = 0xf,
|
| 4748 |
[NEON_3R_VQSHL] = 0xf,
|
| 4749 |
[NEON_3R_VRSHL] = 0xf,
|
| 4750 |
[NEON_3R_VQRSHL] = 0xf,
|
| 4751 |
[NEON_3R_VMAX] = 0x7,
|
| 4752 |
[NEON_3R_VMIN] = 0x7,
|
| 4753 |
[NEON_3R_VABD] = 0x7,
|
| 4754 |
[NEON_3R_VABA] = 0x7,
|
| 4755 |
[NEON_3R_VADD_VSUB] = 0xf,
|
| 4756 |
[NEON_3R_VTST_VCEQ] = 0x7,
|
| 4757 |
[NEON_3R_VML] = 0x7,
|
| 4758 |
[NEON_3R_VMUL] = 0x7,
|
| 4759 |
[NEON_3R_VPMAX] = 0x7,
|
| 4760 |
[NEON_3R_VPMIN] = 0x7,
|
| 4761 |
[NEON_3R_VQDMULH_VQRDMULH] = 0x6,
|
| 4762 |
[NEON_3R_VPADD] = 0x7,
|
| 4763 |
[NEON_3R_VFM] = 0x5, /* size bit 1 encodes op */ |
| 4764 |
[NEON_3R_FLOAT_ARITH] = 0x5, /* size bit 1 encodes op */ |
| 4765 |
[NEON_3R_FLOAT_MULTIPLY] = 0x5, /* size bit 1 encodes op */ |
| 4766 |
[NEON_3R_FLOAT_CMP] = 0x5, /* size bit 1 encodes op */ |
| 4767 |
[NEON_3R_FLOAT_ACMP] = 0x5, /* size bit 1 encodes op */ |
| 4768 |
[NEON_3R_FLOAT_MINMAX] = 0x5, /* size bit 1 encodes op */ |
| 4769 |
[NEON_3R_FLOAT_MISC] = 0x5, /* size bit 1 encodes op */ |
| 4770 |
}; |
| 4771 |
|
| 4772 |
/* Symbolic constants for op fields for Neon 2-register miscellaneous.
|
| 4773 |
* The values correspond to bits [17:16,10:7]; see the ARM ARM DDI0406B
|
| 4774 |
* table A7-13.
|
| 4775 |
*/
|
| 4776 |
#define NEON_2RM_VREV64 0 |
| 4777 |
#define NEON_2RM_VREV32 1 |
| 4778 |
#define NEON_2RM_VREV16 2 |
| 4779 |
#define NEON_2RM_VPADDL 4 |
| 4780 |
#define NEON_2RM_VPADDL_U 5 |
| 4781 |
#define NEON_2RM_AESE 6 /* Includes AESD */ |
| 4782 |
#define NEON_2RM_AESMC 7 /* Includes AESIMC */ |
| 4783 |
#define NEON_2RM_VCLS 8 |
| 4784 |
#define NEON_2RM_VCLZ 9 |
| 4785 |
#define NEON_2RM_VCNT 10 |
| 4786 |
#define NEON_2RM_VMVN 11 |
| 4787 |
#define NEON_2RM_VPADAL 12 |
| 4788 |
#define NEON_2RM_VPADAL_U 13 |
| 4789 |
#define NEON_2RM_VQABS 14 |
| 4790 |
#define NEON_2RM_VQNEG 15 |
| 4791 |
#define NEON_2RM_VCGT0 16 |
| 4792 |
#define NEON_2RM_VCGE0 17 |
| 4793 |
#define NEON_2RM_VCEQ0 18 |
| 4794 |
#define NEON_2RM_VCLE0 19 |
| 4795 |
#define NEON_2RM_VCLT0 20 |
| 4796 |
#define NEON_2RM_VABS 22 |
| 4797 |
#define NEON_2RM_VNEG 23 |
| 4798 |
#define NEON_2RM_VCGT0_F 24 |
| 4799 |
#define NEON_2RM_VCGE0_F 25 |
| 4800 |
#define NEON_2RM_VCEQ0_F 26 |
| 4801 |
#define NEON_2RM_VCLE0_F 27 |
| 4802 |
#define NEON_2RM_VCLT0_F 28 |
| 4803 |
#define NEON_2RM_VABS_F 30 |
| 4804 |
#define NEON_2RM_VNEG_F 31 |
| 4805 |
#define NEON_2RM_VSWP 32 |
| 4806 |
#define NEON_2RM_VTRN 33 |
| 4807 |
#define NEON_2RM_VUZP 34 |
| 4808 |
#define NEON_2RM_VZIP 35 |
| 4809 |
#define NEON_2RM_VMOVN 36 /* Includes VQMOVN, VQMOVUN */ |
| 4810 |
#define NEON_2RM_VQMOVN 37 /* Includes VQMOVUN */ |
| 4811 |
#define NEON_2RM_VSHLL 38 |
| 4812 |
#define NEON_2RM_VRINTN 40 |
| 4813 |
#define NEON_2RM_VRINTX 41 |
| 4814 |
#define NEON_2RM_VRINTA 42 |
| 4815 |
#define NEON_2RM_VRINTZ 43 |
| 4816 |
#define NEON_2RM_VCVT_F16_F32 44 |
| 4817 |
#define NEON_2RM_VRINTM 45 |
| 4818 |
#define NEON_2RM_VCVT_F32_F16 46 |
| 4819 |
#define NEON_2RM_VRINTP 47 |
| 4820 |
#define NEON_2RM_VCVTAU 48 |
| 4821 |
#define NEON_2RM_VCVTAS 49 |
| 4822 |
#define NEON_2RM_VCVTNU 50 |
| 4823 |
#define NEON_2RM_VCVTNS 51 |
| 4824 |
#define NEON_2RM_VCVTPU 52 |
| 4825 |
#define NEON_2RM_VCVTPS 53 |
| 4826 |
#define NEON_2RM_VCVTMU 54 |
| 4827 |
#define NEON_2RM_VCVTMS 55 |
| 4828 |
#define NEON_2RM_VRECPE 56 |
| 4829 |
#define NEON_2RM_VRSQRTE 57 |
| 4830 |
#define NEON_2RM_VRECPE_F 58 |
| 4831 |
#define NEON_2RM_VRSQRTE_F 59 |
| 4832 |
#define NEON_2RM_VCVT_FS 60 |
| 4833 |
#define NEON_2RM_VCVT_FU 61 |
| 4834 |
#define NEON_2RM_VCVT_SF 62 |
| 4835 |
#define NEON_2RM_VCVT_UF 63 |
| 4836 |
|
| 4837 |
static int neon_2rm_is_float_op(int op) |
| 4838 |
{
|
| 4839 |
/* Return true if this neon 2reg-misc op is float-to-float */
|
| 4840 |
return (op == NEON_2RM_VABS_F || op == NEON_2RM_VNEG_F ||
|
| 4841 |
(op >= NEON_2RM_VRINTN && op <= NEON_2RM_VRINTZ) || |
| 4842 |
op == NEON_2RM_VRINTM || |
| 4843 |
(op >= NEON_2RM_VRINTP && op <= NEON_2RM_VCVTMS) || |
| 4844 |
op >= NEON_2RM_VRECPE_F); |
| 4845 |
} |
| 4846 |
|
| 4847 |
/* Each entry in this array has bit n set if the insn allows
|
| 4848 |
* size value n (otherwise it will UNDEF). Since unallocated
|
| 4849 |
* op values will have no bits set they always UNDEF.
|
| 4850 |
*/
|
| 4851 |
static const uint8_t neon_2rm_sizes[] = { |
| 4852 |
[NEON_2RM_VREV64] = 0x7,
|
| 4853 |
[NEON_2RM_VREV32] = 0x3,
|
| 4854 |
[NEON_2RM_VREV16] = 0x1,
|
| 4855 |
[NEON_2RM_VPADDL] = 0x7,
|
| 4856 |
[NEON_2RM_VPADDL_U] = 0x7,
|
| 4857 |
[NEON_2RM_AESE] = 0x1,
|
| 4858 |
[NEON_2RM_AESMC] = 0x1,
|
| 4859 |
[NEON_2RM_VCLS] = 0x7,
|
| 4860 |
[NEON_2RM_VCLZ] = 0x7,
|
| 4861 |
[NEON_2RM_VCNT] = 0x1,
|
| 4862 |
[NEON_2RM_VMVN] = 0x1,
|
| 4863 |
[NEON_2RM_VPADAL] = 0x7,
|
| 4864 |
[NEON_2RM_VPADAL_U] = 0x7,
|
| 4865 |
[NEON_2RM_VQABS] = 0x7,
|
| 4866 |
[NEON_2RM_VQNEG] = 0x7,
|
| 4867 |
[NEON_2RM_VCGT0] = 0x7,
|
| 4868 |
[NEON_2RM_VCGE0] = 0x7,
|
| 4869 |
[NEON_2RM_VCEQ0] = 0x7,
|
| 4870 |
[NEON_2RM_VCLE0] = 0x7,
|
| 4871 |
[NEON_2RM_VCLT0] = 0x7,
|
| 4872 |
[NEON_2RM_VABS] = 0x7,
|
| 4873 |
[NEON_2RM_VNEG] = 0x7,
|
| 4874 |
[NEON_2RM_VCGT0_F] = 0x4,
|
| 4875 |
[NEON_2RM_VCGE0_F] = 0x4,
|
| 4876 |
[NEON_2RM_VCEQ0_F] = 0x4,
|
| 4877 |
[NEON_2RM_VCLE0_F] = 0x4,
|
| 4878 |
[NEON_2RM_VCLT0_F] = 0x4,
|
| 4879 |
[NEON_2RM_VABS_F] = 0x4,
|
| 4880 |
[NEON_2RM_VNEG_F] = 0x4,
|
| 4881 |
[NEON_2RM_VSWP] = 0x1,
|
| 4882 |
[NEON_2RM_VTRN] = 0x7,
|
| 4883 |
[NEON_2RM_VUZP] = 0x7,
|
| 4884 |
[NEON_2RM_VZIP] = 0x7,
|
| 4885 |
[NEON_2RM_VMOVN] = 0x7,
|
| 4886 |
[NEON_2RM_VQMOVN] = 0x7,
|
| 4887 |
[NEON_2RM_VSHLL] = 0x7,
|
| 4888 |
[NEON_2RM_VRINTN] = 0x4,
|
| 4889 |
[NEON_2RM_VRINTX] = 0x4,
|
| 4890 |
[NEON_2RM_VRINTA] = 0x4,
|
| 4891 |
[NEON_2RM_VRINTZ] = 0x4,
|
| 4892 |
[NEON_2RM_VCVT_F16_F32] = 0x2,
|
| 4893 |
[NEON_2RM_VRINTM] = 0x4,
|
| 4894 |
[NEON_2RM_VCVT_F32_F16] = 0x2,
|
| 4895 |
[NEON_2RM_VRINTP] = 0x4,
|
| 4896 |
[NEON_2RM_VCVTAU] = 0x4,
|
| 4897 |
[NEON_2RM_VCVTAS] = 0x4,
|
| 4898 |
[NEON_2RM_VCVTNU] = 0x4,
|
| 4899 |
[NEON_2RM_VCVTNS] = 0x4,
|
| 4900 |
[NEON_2RM_VCVTPU] = 0x4,
|
| 4901 |
[NEON_2RM_VCVTPS] = 0x4,
|
| 4902 |
[NEON_2RM_VCVTMU] = 0x4,
|
| 4903 |
[NEON_2RM_VCVTMS] = 0x4,
|
| 4904 |
[NEON_2RM_VRECPE] = 0x4,
|
| 4905 |
[NEON_2RM_VRSQRTE] = 0x4,
|
| 4906 |
[NEON_2RM_VRECPE_F] = 0x4,
|
| 4907 |
[NEON_2RM_VRSQRTE_F] = 0x4,
|
| 4908 |
[NEON_2RM_VCVT_FS] = 0x4,
|
| 4909 |
[NEON_2RM_VCVT_FU] = 0x4,
|
| 4910 |
[NEON_2RM_VCVT_SF] = 0x4,
|
| 4911 |
[NEON_2RM_VCVT_UF] = 0x4,
|
| 4912 |
}; |
| 4913 |
|
| 4914 |
/* Translate a NEON data processing instruction. Return nonzero if the
|
| 4915 |
instruction is invalid.
|
| 4916 |
We process data in a mixture of 32-bit and 64-bit chunks.
|
| 4917 |
Mostly we use 32-bit chunks so we can use normal scalar instructions. */
|
| 4918 |
|
| 4919 |
static int disas_neon_data_insn(CPUARMState * env, DisasContext *s, uint32_t insn) |
| 4920 |
{
|
| 4921 |
int op;
|
| 4922 |
int q;
|
| 4923 |
int rd, rn, rm;
|
| 4924 |
int size;
|
| 4925 |
int shift;
|
| 4926 |
int pass;
|
| 4927 |
int count;
|
| 4928 |
int pairwise;
|
| 4929 |
int u;
|
| 4930 |
uint32_t imm, mask; |
| 4931 |
TCGv_i32 tmp, tmp2, tmp3, tmp4, tmp5; |
| 4932 |
TCGv_i64 tmp64; |
| 4933 |
|
| 4934 |
if (!s->vfp_enabled)
|
| 4935 |
return 1; |
| 4936 |
q = (insn & (1 << 6)) != 0; |
| 4937 |
u = (insn >> 24) & 1; |
| 4938 |
VFP_DREG_D(rd, insn); |
| 4939 |
VFP_DREG_N(rn, insn); |
| 4940 |
VFP_DREG_M(rm, insn); |
| 4941 |
size = (insn >> 20) & 3; |
| 4942 |
if ((insn & (1 << 23)) == 0) { |
| 4943 |
/* Three register same length. */
|
| 4944 |
op = ((insn >> 7) & 0x1e) | ((insn >> 4) & 1); |
| 4945 |
/* Catch invalid op and bad size combinations: UNDEF */
|
| 4946 |
if ((neon_3r_sizes[op] & (1 << size)) == 0) { |
| 4947 |
return 1; |
| 4948 |
} |
| 4949 |
/* All insns of this form UNDEF for either this condition or the
|
| 4950 |
* superset of cases "Q==1"; we catch the latter later.
|
| 4951 |
*/
|
| 4952 |
if (q && ((rd | rn | rm) & 1)) { |
| 4953 |
return 1; |
| 4954 |
} |
| 4955 |
if (size == 3 && op != NEON_3R_LOGIC) { |
| 4956 |
/* 64-bit element instructions. */
|
| 4957 |
for (pass = 0; pass < (q ? 2 : 1); pass++) { |
| 4958 |
neon_load_reg64(cpu_V0, rn + pass); |
| 4959 |
neon_load_reg64(cpu_V1, rm + pass); |
| 4960 |
switch (op) {
|
| 4961 |
case NEON_3R_VQADD:
|
| 4962 |
if (u) {
|
| 4963 |
gen_helper_neon_qadd_u64(cpu_V0, cpu_env, |
| 4964 |
cpu_V0, cpu_V1); |
| 4965 |
} else {
|
| 4966 |
gen_helper_neon_qadd_s64(cpu_V0, cpu_env, |
| 4967 |
cpu_V0, cpu_V1); |
| 4968 |
} |
| 4969 |
break;
|
| 4970 |
case NEON_3R_VQSUB:
|
| 4971 |
if (u) {
|
| 4972 |
gen_helper_neon_qsub_u64(cpu_V0, cpu_env, |
| 4973 |
cpu_V0, cpu_V1); |
| 4974 |
} else {
|
| 4975 |
gen_helper_neon_qsub_s64(cpu_V0, cpu_env, |
| 4976 |
cpu_V0, cpu_V1); |
| 4977 |
} |
| 4978 |
break;
|
| 4979 |
case NEON_3R_VSHL:
|
| 4980 |
if (u) {
|
| 4981 |
gen_helper_neon_shl_u64(cpu_V0, cpu_V1, cpu_V0); |
| 4982 |
} else {
|
| 4983 |
gen_helper_neon_shl_s64(cpu_V0, cpu_V1, cpu_V0); |
| 4984 |
} |
| 4985 |
break;
|
| 4986 |
case NEON_3R_VQSHL:
|
| 4987 |
if (u) {
|
| 4988 |
gen_helper_neon_qshl_u64(cpu_V0, cpu_env, |
| 4989 |
cpu_V1, cpu_V0); |
| 4990 |
} else {
|
| 4991 |
gen_helper_neon_qshl_s64(cpu_V0, cpu_env, |
| 4992 |
cpu_V1, cpu_V0); |
| 4993 |
} |
| 4994 |
break;
|
| 4995 |
case NEON_3R_VRSHL:
|
| 4996 |
if (u) {
|
| 4997 |
gen_helper_neon_rshl_u64(cpu_V0, cpu_V1, cpu_V0); |
| 4998 |
} else {
|
| 4999 |
gen_helper_neon_rshl_s64(cpu_V0, cpu_V1, cpu_V0); |
| 5000 |
} |
| 5001 |
break;
|
| 5002 |
case NEON_3R_VQRSHL:
|
| 5003 |
if (u) {
|
| 5004 |
gen_helper_neon_qrshl_u64(cpu_V0, cpu_env, |
| 5005 |
cpu_V1, cpu_V0); |
| 5006 |
} else {
|
| 5007 |
gen_helper_neon_qrshl_s64(cpu_V0, cpu_env, |
| 5008 |
cpu_V1, cpu_V0); |
| 5009 |
} |
| 5010 |
break;
|
| 5011 |
case NEON_3R_VADD_VSUB:
|
| 5012 |
if (u) {
|
| 5013 |
tcg_gen_sub_i64(CPU_V001); |
| 5014 |
} else {
|
| 5015 |
tcg_gen_add_i64(CPU_V001); |
| 5016 |
} |
| 5017 |
break;
|
| 5018 |
default:
|
| 5019 |
abort(); |
| 5020 |
} |
| 5021 |
neon_store_reg64(cpu_V0, rd + pass); |
| 5022 |
} |
| 5023 |
return 0; |
| 5024 |
} |
| 5025 |
pairwise = 0;
|
| 5026 |
switch (op) {
|
| 5027 |
case NEON_3R_VSHL:
|
| 5028 |
case NEON_3R_VQSHL:
|
| 5029 |
case NEON_3R_VRSHL:
|
| 5030 |
case NEON_3R_VQRSHL:
|
| 5031 |
{
|
| 5032 |
int rtmp;
|
| 5033 |
/* Shift instruction operands are reversed. */
|
| 5034 |
rtmp = rn; |
| 5035 |
rn = rm; |
| 5036 |
rm = rtmp; |
| 5037 |
} |
| 5038 |
break;
|
| 5039 |
case NEON_3R_VPADD:
|
| 5040 |
if (u) {
|
| 5041 |
return 1; |
| 5042 |
} |
| 5043 |
/* Fall through */
|
| 5044 |
case NEON_3R_VPMAX:
|
| 5045 |
case NEON_3R_VPMIN:
|
| 5046 |
pairwise = 1;
|
| 5047 |
break;
|
| 5048 |
case NEON_3R_FLOAT_ARITH:
|
| 5049 |
pairwise = (u && size < 2); /* if VPADD (float) */ |
| 5050 |
break;
|
| 5051 |
case NEON_3R_FLOAT_MINMAX:
|
| 5052 |
pairwise = u; /* if VPMIN/VPMAX (float) */
|
| 5053 |
break;
|
| 5054 |
case NEON_3R_FLOAT_CMP:
|
| 5055 |
if (!u && size) {
|
| 5056 |
/* no encoding for U=0 C=1x */
|
| 5057 |
return 1; |
| 5058 |
} |
| 5059 |
break;
|
| 5060 |
case NEON_3R_FLOAT_ACMP:
|
| 5061 |
if (!u) {
|
| 5062 |
return 1; |
| 5063 |
} |
| 5064 |
break;
|
| 5065 |
case NEON_3R_FLOAT_MISC:
|
| 5066 |
/* VMAXNM/VMINNM in ARMv8 */
|
| 5067 |
if (u && !arm_feature(env, ARM_FEATURE_V8)) {
|
| 5068 |
return 1; |
| 5069 |
} |
| 5070 |
break;
|
| 5071 |
case NEON_3R_VMUL:
|
| 5072 |
if (u && (size != 0)) { |
| 5073 |
/* UNDEF on invalid size for polynomial subcase */
|
| 5074 |
return 1; |
| 5075 |
} |
| 5076 |
break;
|
| 5077 |
case NEON_3R_VFM:
|
| 5078 |
if (!arm_feature(env, ARM_FEATURE_VFP4) || u) {
|
| 5079 |
return 1; |
| 5080 |
} |
| 5081 |
break;
|
| 5082 |
default:
|
| 5083 |
break;
|
| 5084 |
} |
| 5085 |
|
| 5086 |
if (pairwise && q) {
|
| 5087 |
/* All the pairwise insns UNDEF if Q is set */
|
| 5088 |
return 1; |
| 5089 |
} |
| 5090 |
|
| 5091 |
for (pass = 0; pass < (q ? 4 : 2); pass++) { |
| 5092 |
|
| 5093 |
if (pairwise) {
|
| 5094 |
/* Pairwise. */
|
| 5095 |
if (pass < 1) { |
| 5096 |
tmp = neon_load_reg(rn, 0);
|
| 5097 |
tmp2 = neon_load_reg(rn, 1);
|
| 5098 |
} else {
|
| 5099 |
tmp = neon_load_reg(rm, 0);
|
| 5100 |
tmp2 = neon_load_reg(rm, 1);
|
| 5101 |
} |
| 5102 |
} else {
|
| 5103 |
/* Elementwise. */
|
| 5104 |
tmp = neon_load_reg(rn, pass); |
| 5105 |
tmp2 = neon_load_reg(rm, pass); |
| 5106 |
} |
| 5107 |
switch (op) {
|
| 5108 |
case NEON_3R_VHADD:
|
| 5109 |
GEN_NEON_INTEGER_OP(hadd); |
| 5110 |
break;
|
| 5111 |
case NEON_3R_VQADD:
|
| 5112 |
GEN_NEON_INTEGER_OP_ENV(qadd); |
| 5113 |
break;
|
| 5114 |
case NEON_3R_VRHADD:
|
| 5115 |
GEN_NEON_INTEGER_OP(rhadd); |
| 5116 |
break;
|
| 5117 |
case NEON_3R_LOGIC: /* Logic ops. */ |
| 5118 |
switch ((u << 2) | size) { |
| 5119 |
case 0: /* VAND */ |
| 5120 |
tcg_gen_and_i32(tmp, tmp, tmp2); |
| 5121 |
break;
|
| 5122 |
case 1: /* BIC */ |
| 5123 |
tcg_gen_andc_i32(tmp, tmp, tmp2); |
| 5124 |
break;
|
| 5125 |
case 2: /* VORR */ |
| 5126 |
tcg_gen_or_i32(tmp, tmp, tmp2); |
| 5127 |
break;
|
| 5128 |
case 3: /* VORN */ |
| 5129 |
tcg_gen_orc_i32(tmp, tmp, tmp2); |
| 5130 |
break;
|
| 5131 |
case 4: /* VEOR */ |
| 5132 |
tcg_gen_xor_i32(tmp, tmp, tmp2); |
| 5133 |
break;
|
| 5134 |
case 5: /* VBSL */ |
| 5135 |
tmp3 = neon_load_reg(rd, pass); |
| 5136 |
gen_neon_bsl(tmp, tmp, tmp2, tmp3); |
| 5137 |
tcg_temp_free_i32(tmp3); |
| 5138 |
break;
|
| 5139 |
case 6: /* VBIT */ |
| 5140 |
tmp3 = neon_load_reg(rd, pass); |
| 5141 |
gen_neon_bsl(tmp, tmp, tmp3, tmp2); |
| 5142 |
tcg_temp_free_i32(tmp3); |
| 5143 |
break;
|
| 5144 |
case 7: /* VBIF */ |
| 5145 |
tmp3 = neon_load_reg(rd, pass); |
| 5146 |
gen_neon_bsl(tmp, tmp3, tmp, tmp2); |
| 5147 |
tcg_temp_free_i32(tmp3); |
| 5148 |
break;
|
| 5149 |
} |
| 5150 |
break;
|
| 5151 |
case NEON_3R_VHSUB:
|
| 5152 |
GEN_NEON_INTEGER_OP(hsub); |
| 5153 |
break;
|
| 5154 |
case NEON_3R_VQSUB:
|
| 5155 |
GEN_NEON_INTEGER_OP_ENV(qsub); |
| 5156 |
break;
|
| 5157 |
case NEON_3R_VCGT:
|
| 5158 |
GEN_NEON_INTEGER_OP(cgt); |
| 5159 |
break;
|
| 5160 |
case NEON_3R_VCGE:
|
| 5161 |
GEN_NEON_INTEGER_OP(cge); |
| 5162 |
break;
|
| 5163 |
case NEON_3R_VSHL:
|
| 5164 |
GEN_NEON_INTEGER_OP(shl); |
| 5165 |
break;
|
| 5166 |
case NEON_3R_VQSHL:
|
| 5167 |
GEN_NEON_INTEGER_OP_ENV(qshl); |
| 5168 |
break;
|
| 5169 |
case NEON_3R_VRSHL:
|
| 5170 |
GEN_NEON_INTEGER_OP(rshl); |
| 5171 |
break;
|
| 5172 |
case NEON_3R_VQRSHL:
|
| 5173 |
GEN_NEON_INTEGER_OP_ENV(qrshl); |
| 5174 |
break;
|
| 5175 |
case NEON_3R_VMAX:
|
| 5176 |
GEN_NEON_INTEGER_OP(max); |
| 5177 |
break;
|
| 5178 |
case NEON_3R_VMIN:
|
| 5179 |
GEN_NEON_INTEGER_OP(min); |
| 5180 |
break;
|
| 5181 |
case NEON_3R_VABD:
|
| 5182 |
GEN_NEON_INTEGER_OP(abd); |
| 5183 |
break;
|
| 5184 |
case NEON_3R_VABA:
|
| 5185 |
GEN_NEON_INTEGER_OP(abd); |
| 5186 |
tcg_temp_free_i32(tmp2); |
| 5187 |
tmp2 = neon_load_reg(rd, pass); |
| 5188 |
gen_neon_add(size, tmp, tmp2); |
| 5189 |
break;
|
| 5190 |
case NEON_3R_VADD_VSUB:
|
| 5191 |
if (!u) { /* VADD */ |
| 5192 |
gen_neon_add(size, tmp, tmp2); |
| 5193 |
} else { /* VSUB */ |
| 5194 |
switch (size) {
|
| 5195 |
case 0: gen_helper_neon_sub_u8(tmp, tmp, tmp2); break; |
| 5196 |
case 1: gen_helper_neon_sub_u16(tmp, tmp, tmp2); break; |
| 5197 |
case 2: tcg_gen_sub_i32(tmp, tmp, tmp2); break; |
| 5198 |
default: abort();
|
| 5199 |
} |
| 5200 |
} |
| 5201 |
break;
|
| 5202 |
case NEON_3R_VTST_VCEQ:
|
| 5203 |
if (!u) { /* VTST */ |
| 5204 |
switch (size) {
|
| 5205 |
case 0: gen_helper_neon_tst_u8(tmp, tmp, tmp2); break; |
| 5206 |
case 1: gen_helper_neon_tst_u16(tmp, tmp, tmp2); break; |
| 5207 |
case 2: gen_helper_neon_tst_u32(tmp, tmp, tmp2); break; |
| 5208 |
default: abort();
|
| 5209 |
} |
| 5210 |
} else { /* VCEQ */ |
| 5211 |
switch (size) {
|
| 5212 |
case 0: gen_helper_neon_ceq_u8(tmp, tmp, tmp2); break; |
| 5213 |
case 1: gen_helper_neon_ceq_u16(tmp, tmp, tmp2); break; |
| 5214 |
case 2: gen_helper_neon_ceq_u32(tmp, tmp, tmp2); break; |
| 5215 |
default: abort();
|
| 5216 |
} |
| 5217 |
} |
| 5218 |
break;
|
| 5219 |
case NEON_3R_VML: /* VMLA, VMLAL, VMLS,VMLSL */ |
| 5220 |
switch (size) {
|
| 5221 |
case 0: gen_helper_neon_mul_u8(tmp, tmp, tmp2); break; |
| 5222 |
case 1: gen_helper_neon_mul_u16(tmp, tmp, tmp2); break; |
| 5223 |
case 2: tcg_gen_mul_i32(tmp, tmp, tmp2); break; |
| 5224 |
default: abort();
|
| 5225 |
} |
| 5226 |
tcg_temp_free_i32(tmp2); |
| 5227 |
tmp2 = neon_load_reg(rd, pass); |
| 5228 |
if (u) { /* VMLS */ |
| 5229 |
gen_neon_rsb(size, tmp, tmp2); |
| 5230 |
} else { /* VMLA */ |
| 5231 |
gen_neon_add(size, tmp, tmp2); |
| 5232 |
} |
| 5233 |
break;
|
| 5234 |
case NEON_3R_VMUL:
|
| 5235 |
if (u) { /* polynomial */ |
| 5236 |
gen_helper_neon_mul_p8(tmp, tmp, tmp2); |
| 5237 |
} else { /* Integer */ |
| 5238 |
switch (size) {
|
| 5239 |
case 0: gen_helper_neon_mul_u8(tmp, tmp, tmp2); break; |
| 5240 |
case 1: gen_helper_neon_mul_u16(tmp, tmp, tmp2); break; |
| 5241 |
case 2: tcg_gen_mul_i32(tmp, tmp, tmp2); break; |
| 5242 |
default: abort();
|
| 5243 |
} |
| 5244 |
} |
| 5245 |
break;
|
| 5246 |
case NEON_3R_VPMAX:
|
| 5247 |
GEN_NEON_INTEGER_OP(pmax); |
| 5248 |
break;
|
| 5249 |
case NEON_3R_VPMIN:
|
| 5250 |
GEN_NEON_INTEGER_OP(pmin); |
| 5251 |
break;
|
| 5252 |
case NEON_3R_VQDMULH_VQRDMULH: /* Multiply high. */ |
| 5253 |
if (!u) { /* VQDMULH */ |
| 5254 |
switch (size) {
|
| 5255 |
case 1: |
| 5256 |
gen_helper_neon_qdmulh_s16(tmp, cpu_env, tmp, tmp2); |
| 5257 |
break;
|
| 5258 |
case 2: |
| 5259 |
gen_helper_neon_qdmulh_s32(tmp, cpu_env, tmp, tmp2); |
| 5260 |
break;
|
| 5261 |
default: abort();
|
| 5262 |
} |
| 5263 |
} else { /* VQRDMULH */ |
| 5264 |
switch (size) {
|
| 5265 |
case 1: |
| 5266 |
gen_helper_neon_qrdmulh_s16(tmp, cpu_env, tmp, tmp2); |
| 5267 |
break;
|
| 5268 |
case 2: |
| 5269 |
gen_helper_neon_qrdmulh_s32(tmp, cpu_env, tmp, tmp2); |
| 5270 |
break;
|
| 5271 |
default: abort();
|
| 5272 |
} |
| 5273 |
} |
| 5274 |
break;
|
| 5275 |
case NEON_3R_VPADD:
|
| 5276 |
switch (size) {
|
| 5277 |
case 0: gen_helper_neon_padd_u8(tmp, tmp, tmp2); break; |
| 5278 |
case 1: gen_helper_neon_padd_u16(tmp, tmp, tmp2); break; |
| 5279 |
case 2: tcg_gen_add_i32(tmp, tmp, tmp2); break; |
| 5280 |
default: abort();
|
| 5281 |
} |
| 5282 |
break;
|
| 5283 |
case NEON_3R_FLOAT_ARITH: /* Floating point arithmetic. */ |
| 5284 |
{
|
| 5285 |
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
|
| 5286 |
switch ((u << 2) | size) { |
| 5287 |
case 0: /* VADD */ |
| 5288 |
case 4: /* VPADD */ |
| 5289 |
gen_helper_vfp_adds(tmp, tmp, tmp2, fpstatus); |
| 5290 |
break;
|
| 5291 |
case 2: /* VSUB */ |
| 5292 |
gen_helper_vfp_subs(tmp, tmp, tmp2, fpstatus); |
| 5293 |
break;
|
| 5294 |
case 6: /* VABD */ |
| 5295 |
gen_helper_neon_abd_f32(tmp, tmp, tmp2, fpstatus); |
| 5296 |
break;
|
| 5297 |
default:
|
| 5298 |
abort(); |
| 5299 |
} |
| 5300 |
tcg_temp_free_ptr(fpstatus); |
| 5301 |
break;
|
| 5302 |
} |
| 5303 |
case NEON_3R_FLOAT_MULTIPLY:
|
| 5304 |
{
|
| 5305 |
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
|
| 5306 |
gen_helper_vfp_muls(tmp, tmp, tmp2, fpstatus); |
| 5307 |
if (!u) {
|
| 5308 |
tcg_temp_free_i32(tmp2); |
| 5309 |
tmp2 = neon_load_reg(rd, pass); |
| 5310 |
if (size == 0) { |
| 5311 |
gen_helper_vfp_adds(tmp, tmp, tmp2, fpstatus); |
| 5312 |
} else {
|
| 5313 |
gen_helper_vfp_subs(tmp, tmp2, tmp, fpstatus); |
| 5314 |
} |
| 5315 |
} |
| 5316 |
tcg_temp_free_ptr(fpstatus); |
| 5317 |
break;
|
| 5318 |
} |
| 5319 |
case NEON_3R_FLOAT_CMP:
|
| 5320 |
{
|
| 5321 |
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
|
| 5322 |
if (!u) {
|
| 5323 |
gen_helper_neon_ceq_f32(tmp, tmp, tmp2, fpstatus); |
| 5324 |
} else {
|
| 5325 |
if (size == 0) { |
| 5326 |
gen_helper_neon_cge_f32(tmp, tmp, tmp2, fpstatus); |
| 5327 |
} else {
|
| 5328 |
gen_helper_neon_cgt_f32(tmp, tmp, tmp2, fpstatus); |
| 5329 |
} |
| 5330 |
} |
| 5331 |
tcg_temp_free_ptr(fpstatus); |
| 5332 |
break;
|
| 5333 |
} |
| 5334 |
case NEON_3R_FLOAT_ACMP:
|
| 5335 |
{
|
| 5336 |
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
|
| 5337 |
if (size == 0) { |
| 5338 |
gen_helper_neon_acge_f32(tmp, tmp, tmp2, fpstatus); |
| 5339 |
} else {
|
| 5340 |
gen_helper_neon_acgt_f32(tmp, tmp, tmp2, fpstatus); |
| 5341 |
} |
| 5342 |
tcg_temp_free_ptr(fpstatus); |
| 5343 |
break;
|
| 5344 |
} |
| 5345 |
case NEON_3R_FLOAT_MINMAX:
|
| 5346 |
{
|
| 5347 |
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
|
| 5348 |
if (size == 0) { |
| 5349 |
gen_helper_vfp_maxs(tmp, tmp, tmp2, fpstatus); |
| 5350 |
} else {
|
| 5351 |
gen_helper_vfp_mins(tmp, tmp, tmp2, fpstatus); |
| 5352 |
} |
| 5353 |
tcg_temp_free_ptr(fpstatus); |
| 5354 |
break;
|
| 5355 |
} |
| 5356 |
case NEON_3R_FLOAT_MISC:
|
| 5357 |
if (u) {
|
| 5358 |
/* VMAXNM/VMINNM */
|
| 5359 |
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
|
| 5360 |
if (size == 0) { |
| 5361 |
gen_helper_vfp_maxnums(tmp, tmp, tmp2, fpstatus); |
| 5362 |
} else {
|
| 5363 |
gen_helper_vfp_minnums(tmp, tmp, tmp2, fpstatus); |
| 5364 |
} |
| 5365 |
tcg_temp_free_ptr(fpstatus); |
| 5366 |
} else {
|
| 5367 |
if (size == 0) { |
| 5368 |
gen_helper_recps_f32(tmp, tmp, tmp2, cpu_env); |
| 5369 |
} else {
|
| 5370 |
gen_helper_rsqrts_f32(tmp, tmp, tmp2, cpu_env); |
| 5371 |
} |
| 5372 |
} |
| 5373 |
break;
|
| 5374 |
case NEON_3R_VFM:
|
| 5375 |
{
|
| 5376 |
/* VFMA, VFMS: fused multiply-add */
|
| 5377 |
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
|
| 5378 |
TCGv_i32 tmp3 = neon_load_reg(rd, pass); |
| 5379 |
if (size) {
|
| 5380 |
/* VFMS */
|
| 5381 |
gen_helper_vfp_negs(tmp, tmp); |
| 5382 |
} |
| 5383 |
gen_helper_vfp_muladds(tmp, tmp, tmp2, tmp3, fpstatus); |
| 5384 |
tcg_temp_free_i32(tmp3); |
| 5385 |
tcg_temp_free_ptr(fpstatus); |
| 5386 |
break;
|
| 5387 |
} |
| 5388 |
default:
|
| 5389 |
abort(); |
| 5390 |
} |
| 5391 |
tcg_temp_free_i32(tmp2); |
| 5392 |
|
| 5393 |
/* Save the result. For elementwise operations we can put it
|
| 5394 |
straight into the destination register. For pairwise operations
|
| 5395 |
we have to be careful to avoid clobbering the source operands. */
|
| 5396 |
if (pairwise && rd == rm) {
|
| 5397 |
neon_store_scratch(pass, tmp); |
| 5398 |
} else {
|
| 5399 |
neon_store_reg(rd, pass, tmp); |
| 5400 |
} |
| 5401 |
|
| 5402 |
} /* for pass */
|
| 5403 |
if (pairwise && rd == rm) {
|
| 5404 |
for (pass = 0; pass < (q ? 4 : 2); pass++) { |
| 5405 |
tmp = neon_load_scratch(pass); |
| 5406 |
neon_store_reg(rd, pass, tmp); |
| 5407 |
} |
| 5408 |
} |
| 5409 |
/* End of 3 register same size operations. */
|
| 5410 |
} else if (insn & (1 << 4)) { |
| 5411 |
if ((insn & 0x00380080) != 0) { |
| 5412 |
/* Two registers and shift. */
|
| 5413 |
op = (insn >> 8) & 0xf; |
| 5414 |
if (insn & (1 << 7)) { |
| 5415 |
/* 64-bit shift. */
|
| 5416 |
if (op > 7) { |
| 5417 |
return 1; |
| 5418 |
} |
| 5419 |
size = 3;
|
| 5420 |
} else {
|
| 5421 |
size = 2;
|
| 5422 |
while ((insn & (1 << (size + 19))) == 0) |
| 5423 |
size--; |
| 5424 |
} |
| 5425 |
shift = (insn >> 16) & ((1 << (3 + size)) - 1); |
| 5426 |
/* To avoid excessive duplication of ops we implement shift
|
| 5427 |
by immediate using the variable shift operations. */
|
| 5428 |
if (op < 8) { |
| 5429 |
/* Shift by immediate:
|
| 5430 |
VSHR, VSRA, VRSHR, VRSRA, VSRI, VSHL, VQSHL, VQSHLU. */
|
| 5431 |
if (q && ((rd | rm) & 1)) { |
| 5432 |
return 1; |
| 5433 |
} |
| 5434 |
if (!u && (op == 4 || op == 6)) { |
| 5435 |
return 1; |
| 5436 |
} |
| 5437 |
/* Right shifts are encoded as N - shift, where N is the
|
| 5438 |
element size in bits. */
|
| 5439 |
if (op <= 4) |
| 5440 |
shift = shift - (1 << (size + 3)); |
| 5441 |
if (size == 3) { |
| 5442 |
count = q + 1;
|
| 5443 |
} else {
|
| 5444 |
count = q ? 4: 2; |
| 5445 |
} |
| 5446 |
switch (size) {
|
| 5447 |
case 0: |
| 5448 |
imm = (uint8_t) shift; |
| 5449 |
imm |= imm << 8;
|
| 5450 |
imm |= imm << 16;
|
| 5451 |
break;
|
| 5452 |
case 1: |
| 5453 |
imm = (uint16_t) shift; |
| 5454 |
imm |= imm << 16;
|
| 5455 |
break;
|
| 5456 |
case 2: |
| 5457 |
case 3: |
| 5458 |
imm = shift; |
| 5459 |
break;
|
| 5460 |
default:
|
| 5461 |
abort(); |
| 5462 |
} |
| 5463 |
|
| 5464 |
for (pass = 0; pass < count; pass++) { |
| 5465 |
if (size == 3) { |
| 5466 |
neon_load_reg64(cpu_V0, rm + pass); |
| 5467 |
tcg_gen_movi_i64(cpu_V1, imm); |
| 5468 |
switch (op) {
|
| 5469 |
case 0: /* VSHR */ |
| 5470 |
case 1: /* VSRA */ |
| 5471 |
if (u)
|
| 5472 |
gen_helper_neon_shl_u64(cpu_V0, cpu_V0, cpu_V1); |
| 5473 |
else
|
| 5474 |
gen_helper_neon_shl_s64(cpu_V0, cpu_V0, cpu_V1); |
| 5475 |
break;
|
| 5476 |
case 2: /* VRSHR */ |
| 5477 |
case 3: /* VRSRA */ |
| 5478 |
if (u)
|
| 5479 |
gen_helper_neon_rshl_u64(cpu_V0, cpu_V0, cpu_V1); |
| 5480 |
else
|
| 5481 |
gen_helper_neon_rshl_s64(cpu_V0, cpu_V0, cpu_V1); |
| 5482 |
break;
|
| 5483 |
case 4: /* VSRI */ |
| 5484 |
case 5: /* VSHL, VSLI */ |
| 5485 |
gen_helper_neon_shl_u64(cpu_V0, cpu_V0, cpu_V1); |
| 5486 |
break;
|
| 5487 |
case 6: /* VQSHLU */ |
| 5488 |
gen_helper_neon_qshlu_s64(cpu_V0, cpu_env, |
| 5489 |
cpu_V0, cpu_V1); |
| 5490 |
break;
|
| 5491 |
case 7: /* VQSHL */ |
| 5492 |
if (u) {
|
| 5493 |
gen_helper_neon_qshl_u64(cpu_V0, cpu_env, |
| 5494 |
cpu_V0, cpu_V1); |
| 5495 |
} else {
|
| 5496 |
gen_helper_neon_qshl_s64(cpu_V0, cpu_env, |
| 5497 |
cpu_V0, cpu_V1); |
| 5498 |
} |
| 5499 |
break;
|
| 5500 |
} |
| 5501 |
if (op == 1 || op == 3) { |
| 5502 |
/* Accumulate. */
|
| 5503 |
neon_load_reg64(cpu_V1, rd + pass); |
| 5504 |
tcg_gen_add_i64(cpu_V0, cpu_V0, cpu_V1); |
| 5505 |
} else if (op == 4 || (op == 5 && u)) { |
| 5506 |
/* Insert */
|
| 5507 |
neon_load_reg64(cpu_V1, rd + pass); |
| 5508 |
uint64_t mask; |
| 5509 |
if (shift < -63 || shift > 63) { |
| 5510 |
mask = 0;
|
| 5511 |
} else {
|
| 5512 |
if (op == 4) { |
| 5513 |
mask = 0xffffffffffffffffull >> -shift;
|
| 5514 |
} else {
|
| 5515 |
mask = 0xffffffffffffffffull << shift;
|
| 5516 |
} |
| 5517 |
} |
| 5518 |
tcg_gen_andi_i64(cpu_V1, cpu_V1, ~mask); |
| 5519 |
tcg_gen_or_i64(cpu_V0, cpu_V0, cpu_V1); |
| 5520 |
} |
| 5521 |
neon_store_reg64(cpu_V0, rd + pass); |
| 5522 |
} else { /* size < 3 */ |
| 5523 |
/* Operands in T0 and T1. */
|
| 5524 |
tmp = neon_load_reg(rm, pass); |
| 5525 |
tmp2 = tcg_temp_new_i32(); |
| 5526 |
tcg_gen_movi_i32(tmp2, imm); |
| 5527 |
switch (op) {
|
| 5528 |
case 0: /* VSHR */ |
| 5529 |
case 1: /* VSRA */ |
| 5530 |
GEN_NEON_INTEGER_OP(shl); |
| 5531 |
break;
|
| 5532 |
case 2: /* VRSHR */ |
| 5533 |
case 3: /* VRSRA */ |
| 5534 |
GEN_NEON_INTEGER_OP(rshl); |
| 5535 |
break;
|
| 5536 |
case 4: /* VSRI */ |
| 5537 |
case 5: /* VSHL, VSLI */ |
| 5538 |
switch (size) {
|
| 5539 |
case 0: gen_helper_neon_shl_u8(tmp, tmp, tmp2); break; |
| 5540 |
case 1: gen_helper_neon_shl_u16(tmp, tmp, tmp2); break; |
| 5541 |
case 2: gen_helper_neon_shl_u32(tmp, tmp, tmp2); break; |
| 5542 |
default: abort();
|
| 5543 |
} |
| 5544 |
break;
|
| 5545 |
case 6: /* VQSHLU */ |
| 5546 |
switch (size) {
|
| 5547 |
case 0: |
| 5548 |
gen_helper_neon_qshlu_s8(tmp, cpu_env, |
| 5549 |
tmp, tmp2); |
| 5550 |
break;
|
| 5551 |
case 1: |
| 5552 |
gen_helper_neon_qshlu_s16(tmp, cpu_env, |
| 5553 |
tmp, tmp2); |
| 5554 |
break;
|
| 5555 |
case 2: |
| 5556 |
gen_helper_neon_qshlu_s32(tmp, cpu_env, |
| 5557 |
tmp, tmp2); |
| 5558 |
break;
|
| 5559 |
default:
|
| 5560 |
abort(); |
| 5561 |
} |
| 5562 |
break;
|
| 5563 |
case 7: /* VQSHL */ |
| 5564 |
GEN_NEON_INTEGER_OP_ENV(qshl); |
| 5565 |
break;
|
| 5566 |
} |
| 5567 |
tcg_temp_free_i32(tmp2); |
| 5568 |
|
| 5569 |
if (op == 1 || op == 3) { |
| 5570 |
/* Accumulate. */
|
| 5571 |
tmp2 = neon_load_reg(rd, pass); |
| 5572 |
gen_neon_add(size, tmp, tmp2); |
| 5573 |
tcg_temp_free_i32(tmp2); |
| 5574 |
} else if (op == 4 || (op == 5 && u)) { |
| 5575 |
/* Insert */
|
| 5576 |
switch (size) {
|
| 5577 |
case 0: |
| 5578 |
if (op == 4) |
| 5579 |
mask = 0xff >> -shift;
|
| 5580 |
else
|
| 5581 |
mask = (uint8_t)(0xff << shift);
|
| 5582 |
mask |= mask << 8;
|
| 5583 |
mask |= mask << 16;
|
| 5584 |
break;
|
| 5585 |
case 1: |
| 5586 |
if (op == 4) |
| 5587 |
mask = 0xffff >> -shift;
|
| 5588 |
else
|
| 5589 |
mask = (uint16_t)(0xffff << shift);
|
| 5590 |
mask |= mask << 16;
|
| 5591 |
break;
|
| 5592 |
case 2: |
| 5593 |
if (shift < -31 || shift > 31) { |
| 5594 |
mask = 0;
|
| 5595 |
} else {
|
| 5596 |
if (op == 4) |
| 5597 |
mask = 0xffffffffu >> -shift;
|
| 5598 |
else
|
| 5599 |
mask = 0xffffffffu << shift;
|
| 5600 |
} |
| 5601 |
break;
|
| 5602 |
default:
|
| 5603 |
abort(); |
| 5604 |
} |
| 5605 |
tmp2 = neon_load_reg(rd, pass); |
| 5606 |
tcg_gen_andi_i32(tmp, tmp, mask); |
| 5607 |
tcg_gen_andi_i32(tmp2, tmp2, ~mask); |
| 5608 |
tcg_gen_or_i32(tmp, tmp, tmp2); |
| 5609 |
tcg_temp_free_i32(tmp2); |
| 5610 |
} |
| 5611 |
neon_store_reg(rd, pass, tmp); |
| 5612 |
} |
| 5613 |
} /* for pass */
|
| 5614 |
} else if (op < 10) { |
| 5615 |
/* Shift by immediate and narrow:
|
| 5616 |
VSHRN, VRSHRN, VQSHRN, VQRSHRN. */
|
| 5617 |
int input_unsigned = (op == 8) ? !u : u; |
| 5618 |
if (rm & 1) { |
| 5619 |
return 1; |
| 5620 |
} |
| 5621 |
shift = shift - (1 << (size + 3)); |
| 5622 |
size++; |
| 5623 |
if (size == 3) { |
| 5624 |
tmp64 = tcg_const_i64(shift); |
| 5625 |
neon_load_reg64(cpu_V0, rm); |
| 5626 |
neon_load_reg64(cpu_V1, rm + 1);
|
| 5627 |
for (pass = 0; pass < 2; pass++) { |
| 5628 |
TCGv_i64 in; |
| 5629 |
if (pass == 0) { |
| 5630 |
in = cpu_V0; |
| 5631 |
} else {
|
| 5632 |
in = cpu_V1; |
| 5633 |
} |
| 5634 |
if (q) {
|
| 5635 |
if (input_unsigned) {
|
| 5636 |
gen_helper_neon_rshl_u64(cpu_V0, in, tmp64); |
| 5637 |
} else {
|
| 5638 |
gen_helper_neon_rshl_s64(cpu_V0, in, tmp64); |
| 5639 |
} |
| 5640 |
} else {
|
| 5641 |
if (input_unsigned) {
|
| 5642 |
gen_helper_neon_shl_u64(cpu_V0, in, tmp64); |
| 5643 |
} else {
|
| 5644 |
gen_helper_neon_shl_s64(cpu_V0, in, tmp64); |
| 5645 |
} |
| 5646 |
} |
| 5647 |
tmp = tcg_temp_new_i32(); |
| 5648 |
gen_neon_narrow_op(op == 8, u, size - 1, tmp, cpu_V0); |
| 5649 |
neon_store_reg(rd, pass, tmp); |
| 5650 |
} /* for pass */
|
| 5651 |
tcg_temp_free_i64(tmp64); |
| 5652 |
} else {
|
| 5653 |
if (size == 1) { |
| 5654 |
imm = (uint16_t)shift; |
| 5655 |
imm |= imm << 16;
|
| 5656 |
} else {
|
| 5657 |
/* size == 2 */
|
| 5658 |
imm = (uint32_t)shift; |
| 5659 |
} |
| 5660 |
tmp2 = tcg_const_i32(imm); |
| 5661 |
tmp4 = neon_load_reg(rm + 1, 0); |
| 5662 |
tmp5 = neon_load_reg(rm + 1, 1); |
| 5663 |
for (pass = 0; pass < 2; pass++) { |
| 5664 |
if (pass == 0) { |
| 5665 |
tmp = neon_load_reg(rm, 0);
|
| 5666 |
} else {
|
| 5667 |
tmp = tmp4; |
| 5668 |
} |
| 5669 |
gen_neon_shift_narrow(size, tmp, tmp2, q, |
| 5670 |
input_unsigned); |
| 5671 |
if (pass == 0) { |
| 5672 |
tmp3 = neon_load_reg(rm, 1);
|
| 5673 |
} else {
|
| 5674 |
tmp3 = tmp5; |
| 5675 |
} |
| 5676 |
gen_neon_shift_narrow(size, tmp3, tmp2, q, |
| 5677 |
input_unsigned); |
| 5678 |
tcg_gen_concat_i32_i64(cpu_V0, tmp, tmp3); |
| 5679 |
tcg_temp_free_i32(tmp); |
| 5680 |
tcg_temp_free_i32(tmp3); |
| 5681 |
tmp = tcg_temp_new_i32(); |
| 5682 |
gen_neon_narrow_op(op == 8, u, size - 1, tmp, cpu_V0); |
| 5683 |
neon_store_reg(rd, pass, tmp); |
| 5684 |
} /* for pass */
|
| 5685 |
tcg_temp_free_i32(tmp2); |
| 5686 |
} |
| 5687 |
} else if (op == 10) { |
| 5688 |
/* VSHLL, VMOVL */
|
| 5689 |
if (q || (rd & 1)) { |
| 5690 |
return 1; |
| 5691 |
} |
| 5692 |
tmp = neon_load_reg(rm, 0);
|
| 5693 |
tmp2 = neon_load_reg(rm, 1);
|
| 5694 |
for (pass = 0; pass < 2; pass++) { |
| 5695 |
if (pass == 1) |
| 5696 |
tmp = tmp2; |
| 5697 |
|
| 5698 |
gen_neon_widen(cpu_V0, tmp, size, u); |
| 5699 |
|
| 5700 |
if (shift != 0) { |
| 5701 |
/* The shift is less than the width of the source
|
| 5702 |
type, so we can just shift the whole register. */
|
| 5703 |
tcg_gen_shli_i64(cpu_V0, cpu_V0, shift); |
| 5704 |
/* Widen the result of shift: we need to clear
|
| 5705 |
* the potential overflow bits resulting from
|
| 5706 |
* left bits of the narrow input appearing as
|
| 5707 |
* right bits of left the neighbour narrow
|
| 5708 |
* input. */
|
| 5709 |
if (size < 2 || !u) { |
| 5710 |
uint64_t imm64; |
| 5711 |
if (size == 0) { |
| 5712 |
imm = (0xffu >> (8 - shift)); |
| 5713 |
imm |= imm << 16;
|
| 5714 |
} else if (size == 1) { |
| 5715 |
imm = 0xffff >> (16 - shift); |
| 5716 |
} else {
|
| 5717 |
/* size == 2 */
|
| 5718 |
imm = 0xffffffff >> (32 - shift); |
| 5719 |
} |
| 5720 |
if (size < 2) { |
| 5721 |
imm64 = imm | (((uint64_t)imm) << 32);
|
| 5722 |
} else {
|
| 5723 |
imm64 = imm; |
| 5724 |
} |
| 5725 |
tcg_gen_andi_i64(cpu_V0, cpu_V0, ~imm64); |
| 5726 |
} |
| 5727 |
} |
| 5728 |
neon_store_reg64(cpu_V0, rd + pass); |
| 5729 |
} |
| 5730 |
} else if (op >= 14) { |
| 5731 |
/* VCVT fixed-point. */
|
| 5732 |
if (!(insn & (1 << 21)) || (q && ((rd | rm) & 1))) { |
| 5733 |
return 1; |
| 5734 |
} |
| 5735 |
/* We have already masked out the must-be-1 top bit of imm6,
|
| 5736 |
* hence this 32-shift where the ARM ARM has 64-imm6.
|
| 5737 |
*/
|
| 5738 |
shift = 32 - shift;
|
| 5739 |
for (pass = 0; pass < (q ? 4 : 2); pass++) { |
| 5740 |
tcg_gen_ld_f32(cpu_F0s, cpu_env, neon_reg_offset(rm, pass)); |
| 5741 |
if (!(op & 1)) { |
| 5742 |
if (u)
|
| 5743 |
gen_vfp_ulto(0, shift, 1); |
| 5744 |
else
|
| 5745 |
gen_vfp_slto(0, shift, 1); |
| 5746 |
} else {
|
| 5747 |
if (u)
|
| 5748 |
gen_vfp_toul(0, shift, 1); |
| 5749 |
else
|
| 5750 |
gen_vfp_tosl(0, shift, 1); |
| 5751 |
} |
| 5752 |
tcg_gen_st_f32(cpu_F0s, cpu_env, neon_reg_offset(rd, pass)); |
| 5753 |
} |
| 5754 |
} else {
|
| 5755 |
return 1; |
| 5756 |
} |
| 5757 |
} else { /* (insn & 0x00380080) == 0 */ |
| 5758 |
int invert;
|
| 5759 |
if (q && (rd & 1)) { |
| 5760 |
return 1; |
| 5761 |
} |
| 5762 |
|
| 5763 |
op = (insn >> 8) & 0xf; |
| 5764 |
/* One register and immediate. */
|
| 5765 |
imm = (u << 7) | ((insn >> 12) & 0x70) | (insn & 0xf); |
| 5766 |
invert = (insn & (1 << 5)) != 0; |
| 5767 |
/* Note that op = 2,3,4,5,6,7,10,11,12,13 imm=0 is UNPREDICTABLE.
|
| 5768 |
* We choose to not special-case this and will behave as if a
|
| 5769 |
* valid constant encoding of 0 had been given.
|
| 5770 |
*/
|
| 5771 |
switch (op) {
|
| 5772 |
case 0: case 1: |
| 5773 |
/* no-op */
|
| 5774 |
break;
|
| 5775 |
case 2: case 3: |
| 5776 |
imm <<= 8;
|
| 5777 |
break;
|
| 5778 |
case 4: case 5: |
| 5779 |
imm <<= 16;
|
| 5780 |
break;
|
| 5781 |
case 6: case 7: |
| 5782 |
imm <<= 24;
|
| 5783 |
break;
|
| 5784 |
case 8: case 9: |
| 5785 |
imm |= imm << 16;
|
| 5786 |
break;
|
| 5787 |
case 10: case 11: |
| 5788 |
imm = (imm << 8) | (imm << 24); |
| 5789 |
break;
|
| 5790 |
case 12: |
| 5791 |
imm = (imm << 8) | 0xff; |
| 5792 |
break;
|
| 5793 |
case 13: |
| 5794 |
imm = (imm << 16) | 0xffff; |
| 5795 |
break;
|
| 5796 |
case 14: |
| 5797 |
imm |= (imm << 8) | (imm << 16) | (imm << 24); |
| 5798 |
if (invert)
|
| 5799 |
imm = ~imm; |
| 5800 |
break;
|
| 5801 |
case 15: |
| 5802 |
if (invert) {
|
| 5803 |
return 1; |
| 5804 |
} |
| 5805 |
imm = ((imm & 0x80) << 24) | ((imm & 0x3f) << 19) |
| 5806 |
| ((imm & 0x40) ? (0x1f << 25) : (1 << 30)); |
| 5807 |
break;
|
| 5808 |
} |
| 5809 |
if (invert)
|
| 5810 |
imm = ~imm; |
| 5811 |
|
| 5812 |
for (pass = 0; pass < (q ? 4 : 2); pass++) { |
| 5813 |
if (op & 1 && op < 12) { |
| 5814 |
tmp = neon_load_reg(rd, pass); |
| 5815 |
if (invert) {
|
| 5816 |
/* The immediate value has already been inverted, so
|
| 5817 |
BIC becomes AND. */
|
| 5818 |
tcg_gen_andi_i32(tmp, tmp, imm); |
| 5819 |
} else {
|
| 5820 |
tcg_gen_ori_i32(tmp, tmp, imm); |
| 5821 |
} |
| 5822 |
} else {
|
| 5823 |
/* VMOV, VMVN. */
|
| 5824 |
tmp = tcg_temp_new_i32(); |
| 5825 |
if (op == 14 && invert) { |
| 5826 |
int n;
|
| 5827 |
uint32_t val; |
| 5828 |
val = 0;
|
| 5829 |
for (n = 0; n < 4; n++) { |
| 5830 |
if (imm & (1 << (n + (pass & 1) * 4))) |
| 5831 |
val |= 0xff << (n * 8); |
| 5832 |
} |
| 5833 |
tcg_gen_movi_i32(tmp, val); |
| 5834 |
} else {
|
| 5835 |
tcg_gen_movi_i32(tmp, imm); |
| 5836 |
} |
| 5837 |
} |
| 5838 |
neon_store_reg(rd, pass, tmp); |
| 5839 |
} |
| 5840 |
} |
| 5841 |
} else { /* (insn & 0x00800010 == 0x00800000) */ |
| 5842 |
if (size != 3) { |
| 5843 |
op = (insn >> 8) & 0xf; |
| 5844 |
if ((insn & (1 << 6)) == 0) { |
| 5845 |
/* Three registers of different lengths. */
|
| 5846 |
int src1_wide;
|
| 5847 |
int src2_wide;
|
| 5848 |
int prewiden;
|
| 5849 |
/* undefreq: bit 0 : UNDEF if size != 0
|
| 5850 |
* bit 1 : UNDEF if size == 0
|
| 5851 |
* bit 2 : UNDEF if U == 1
|
| 5852 |
* Note that [1:0] set implies 'always UNDEF'
|
| 5853 |
*/
|
| 5854 |
int undefreq;
|
| 5855 |
/* prewiden, src1_wide, src2_wide, undefreq */
|
| 5856 |
static const int neon_3reg_wide[16][4] = { |
| 5857 |
{1, 0, 0, 0}, /* VADDL */
|
| 5858 |
{1, 1, 0, 0}, /* VADDW */
|
| 5859 |
{1, 0, 0, 0}, /* VSUBL */
|
| 5860 |
{1, 1, 0, 0}, /* VSUBW */
|
| 5861 |
{0, 1, 1, 0}, /* VADDHN */
|
| 5862 |
{0, 0, 0, 0}, /* VABAL */
|
| 5863 |
{0, 1, 1, 0}, /* VSUBHN */
|
| 5864 |
{0, 0, 0, 0}, /* VABDL */
|
| 5865 |
{0, 0, 0, 0}, /* VMLAL */
|
| 5866 |
{0, 0, 0, 6}, /* VQDMLAL */
|
| 5867 |
{0, 0, 0, 0}, /* VMLSL */
|
| 5868 |
{0, 0, 0, 6}, /* VQDMLSL */
|
| 5869 |
{0, 0, 0, 0}, /* Integer VMULL */
|
| 5870 |
{0, 0, 0, 2}, /* VQDMULL */
|
| 5871 |
{0, 0, 0, 5}, /* Polynomial VMULL */
|
| 5872 |
{0, 0, 0, 3}, /* Reserved: always UNDEF */
|
| 5873 |
}; |
| 5874 |
|
| 5875 |
prewiden = neon_3reg_wide[op][0];
|
| 5876 |
src1_wide = neon_3reg_wide[op][1];
|
| 5877 |
src2_wide = neon_3reg_wide[op][2];
|
| 5878 |
undefreq = neon_3reg_wide[op][3];
|
| 5879 |
|
| 5880 |
if (((undefreq & 1) && (size != 0)) || |
| 5881 |
((undefreq & 2) && (size == 0)) || |
| 5882 |
((undefreq & 4) && u)) {
|
| 5883 |
return 1; |
| 5884 |
} |
| 5885 |
if ((src1_wide && (rn & 1)) || |
| 5886 |
(src2_wide && (rm & 1)) ||
|
| 5887 |
(!src2_wide && (rd & 1))) {
|
| 5888 |
return 1; |
| 5889 |
} |
| 5890 |
|
| 5891 |
/* Avoid overlapping operands. Wide source operands are
|
| 5892 |
always aligned so will never overlap with wide
|
| 5893 |
destinations in problematic ways. */
|
| 5894 |
if (rd == rm && !src2_wide) {
|
| 5895 |
tmp = neon_load_reg(rm, 1);
|
| 5896 |
neon_store_scratch(2, tmp);
|
| 5897 |
} else if (rd == rn && !src1_wide) { |
| 5898 |
tmp = neon_load_reg(rn, 1);
|
| 5899 |
neon_store_scratch(2, tmp);
|
| 5900 |
} |
| 5901 |
TCGV_UNUSED_I32(tmp3); |
| 5902 |
for (pass = 0; pass < 2; pass++) { |
| 5903 |
if (src1_wide) {
|
| 5904 |
neon_load_reg64(cpu_V0, rn + pass); |
| 5905 |
TCGV_UNUSED_I32(tmp); |
| 5906 |
} else {
|
| 5907 |
if (pass == 1 && rd == rn) { |
| 5908 |
tmp = neon_load_scratch(2);
|
| 5909 |
} else {
|
| 5910 |
tmp = neon_load_reg(rn, pass); |
| 5911 |
} |
| 5912 |
if (prewiden) {
|
| 5913 |
gen_neon_widen(cpu_V0, tmp, size, u); |
| 5914 |
} |
| 5915 |
} |
| 5916 |
if (src2_wide) {
|
| 5917 |
neon_load_reg64(cpu_V1, rm + pass); |
| 5918 |
TCGV_UNUSED_I32(tmp2); |
| 5919 |
} else {
|
| 5920 |
if (pass == 1 && rd == rm) { |
| 5921 |
tmp2 = neon_load_scratch(2);
|
| 5922 |
} else {
|
| 5923 |
tmp2 = neon_load_reg(rm, pass); |
| 5924 |
} |
| 5925 |
if (prewiden) {
|
| 5926 |
gen_neon_widen(cpu_V1, tmp2, size, u); |
| 5927 |
} |
| 5928 |
} |
| 5929 |
switch (op) {
|
| 5930 |
case 0: case 1: case 4: /* VADDL, VADDW, VADDHN, VRADDHN */ |
| 5931 |
gen_neon_addl(size); |
| 5932 |
break;
|
| 5933 |
case 2: case 3: case 6: /* VSUBL, VSUBW, VSUBHN, VRSUBHN */ |
| 5934 |
gen_neon_subl(size); |
| 5935 |
break;
|
| 5936 |
case 5: case 7: /* VABAL, VABDL */ |
| 5937 |
switch ((size << 1) | u) { |
| 5938 |
case 0: |
| 5939 |
gen_helper_neon_abdl_s16(cpu_V0, tmp, tmp2); |
| 5940 |
break;
|
| 5941 |
case 1: |
| 5942 |
gen_helper_neon_abdl_u16(cpu_V0, tmp, tmp2); |
| 5943 |
break;
|
| 5944 |
case 2: |
| 5945 |
gen_helper_neon_abdl_s32(cpu_V0, tmp, tmp2); |
| 5946 |
break;
|
| 5947 |
case 3: |
| 5948 |
gen_helper_neon_abdl_u32(cpu_V0, tmp, tmp2); |
| 5949 |
break;
|
| 5950 |
case 4: |
| 5951 |
gen_helper_neon_abdl_s64(cpu_V0, tmp, tmp2); |
| 5952 |
break;
|
| 5953 |
case 5: |
| 5954 |
gen_helper_neon_abdl_u64(cpu_V0, tmp, tmp2); |
| 5955 |
break;
|
| 5956 |
default: abort();
|
| 5957 |
} |
| 5958 |
tcg_temp_free_i32(tmp2); |
| 5959 |
tcg_temp_free_i32(tmp); |
| 5960 |
break;
|
| 5961 |
case 8: case 9: case 10: case 11: case 12: case 13: |
| 5962 |
/* VMLAL, VQDMLAL, VMLSL, VQDMLSL, VMULL, VQDMULL */
|
| 5963 |
gen_neon_mull(cpu_V0, tmp, tmp2, size, u); |
| 5964 |
break;
|
| 5965 |
case 14: /* Polynomial VMULL */ |
| 5966 |
gen_helper_neon_mull_p8(cpu_V0, tmp, tmp2); |
| 5967 |
tcg_temp_free_i32(tmp2); |
| 5968 |
tcg_temp_free_i32(tmp); |
| 5969 |
break;
|
| 5970 |
default: /* 15 is RESERVED: caught earlier */ |
| 5971 |
abort(); |
| 5972 |
} |
| 5973 |
if (op == 13) { |
| 5974 |
/* VQDMULL */
|
| 5975 |
gen_neon_addl_saturate(cpu_V0, cpu_V0, size); |
| 5976 |
neon_store_reg64(cpu_V0, rd + pass); |
| 5977 |
} else if (op == 5 || (op >= 8 && op <= 11)) { |
| 5978 |
/* Accumulate. */
|
| 5979 |
neon_load_reg64(cpu_V1, rd + pass); |
| 5980 |
switch (op) {
|
| 5981 |
case 10: /* VMLSL */ |
| 5982 |
gen_neon_negl(cpu_V0, size); |
| 5983 |
/* Fall through */
|
| 5984 |
case 5: case 8: /* VABAL, VMLAL */ |
| 5985 |
gen_neon_addl(size); |
| 5986 |
break;
|
| 5987 |
case 9: case 11: /* VQDMLAL, VQDMLSL */ |
| 5988 |
gen_neon_addl_saturate(cpu_V0, cpu_V0, size); |
| 5989 |
if (op == 11) { |
| 5990 |
gen_neon_negl(cpu_V0, size); |
| 5991 |
} |
| 5992 |
gen_neon_addl_saturate(cpu_V0, cpu_V1, size); |
| 5993 |
break;
|
| 5994 |
default:
|
| 5995 |
abort(); |
| 5996 |
} |
| 5997 |
neon_store_reg64(cpu_V0, rd + pass); |
| 5998 |
} else if (op == 4 || op == 6) { |
| 5999 |
/* Narrowing operation. */
|
| 6000 |
tmp = tcg_temp_new_i32(); |
| 6001 |
if (!u) {
|
| 6002 |
switch (size) {
|
| 6003 |
case 0: |
| 6004 |
gen_helper_neon_narrow_high_u8(tmp, cpu_V0); |
| 6005 |
break;
|
| 6006 |
case 1: |
| 6007 |
gen_helper_neon_narrow_high_u16(tmp, cpu_V0); |
| 6008 |
break;
|
| 6009 |
case 2: |
| 6010 |
tcg_gen_shri_i64(cpu_V0, cpu_V0, 32);
|
| 6011 |
tcg_gen_trunc_i64_i32(tmp, cpu_V0); |
| 6012 |
break;
|
| 6013 |
default: abort();
|
| 6014 |
} |
| 6015 |
} else {
|
| 6016 |
switch (size) {
|
| 6017 |
case 0: |
| 6018 |
gen_helper_neon_narrow_round_high_u8(tmp, cpu_V0); |
| 6019 |
break;
|
| 6020 |
case 1: |
| 6021 |
gen_helper_neon_narrow_round_high_u16(tmp, cpu_V0); |
| 6022 |
break;
|
| 6023 |
case 2: |
| 6024 |
tcg_gen_addi_i64(cpu_V0, cpu_V0, 1u << 31); |
| 6025 |
tcg_gen_shri_i64(cpu_V0, cpu_V0, 32);
|
| 6026 |
tcg_gen_trunc_i64_i32(tmp, cpu_V0); |
| 6027 |
break;
|
| 6028 |
default: abort();
|
| 6029 |
} |
| 6030 |
} |
| 6031 |
if (pass == 0) { |
| 6032 |
tmp3 = tmp; |
| 6033 |
} else {
|
| 6034 |
neon_store_reg(rd, 0, tmp3);
|
| 6035 |
neon_store_reg(rd, 1, tmp);
|
| 6036 |
} |
| 6037 |
} else {
|
| 6038 |
/* Write back the result. */
|
| 6039 |
neon_store_reg64(cpu_V0, rd + pass); |
| 6040 |
} |
| 6041 |
} |
| 6042 |
} else {
|
| 6043 |
/* Two registers and a scalar. NB that for ops of this form
|
| 6044 |
* the ARM ARM labels bit 24 as Q, but it is in our variable
|
| 6045 |
* 'u', not 'q'.
|
| 6046 |
*/
|
| 6047 |
if (size == 0) { |
| 6048 |
return 1; |
| 6049 |
} |
| 6050 |
switch (op) {
|
| 6051 |
case 1: /* Float VMLA scalar */ |
| 6052 |
case 5: /* Floating point VMLS scalar */ |
| 6053 |
case 9: /* Floating point VMUL scalar */ |
| 6054 |
if (size == 1) { |
| 6055 |
return 1; |
| 6056 |
} |
| 6057 |
/* fall through */
|
| 6058 |
case 0: /* Integer VMLA scalar */ |
| 6059 |
case 4: /* Integer VMLS scalar */ |
| 6060 |
case 8: /* Integer VMUL scalar */ |
| 6061 |
case 12: /* VQDMULH scalar */ |
| 6062 |
case 13: /* VQRDMULH scalar */ |
| 6063 |
if (u && ((rd | rn) & 1)) { |
| 6064 |
return 1; |
| 6065 |
} |
| 6066 |
tmp = neon_get_scalar(size, rm); |
| 6067 |
neon_store_scratch(0, tmp);
|
| 6068 |
for (pass = 0; pass < (u ? 4 : 2); pass++) { |
| 6069 |
tmp = neon_load_scratch(0);
|
| 6070 |
tmp2 = neon_load_reg(rn, pass); |
| 6071 |
if (op == 12) { |
| 6072 |
if (size == 1) { |
| 6073 |
gen_helper_neon_qdmulh_s16(tmp, cpu_env, tmp, tmp2); |
| 6074 |
} else {
|
| 6075 |
gen_helper_neon_qdmulh_s32(tmp, cpu_env, tmp, tmp2); |
| 6076 |
} |
| 6077 |
} else if (op == 13) { |
| 6078 |
if (size == 1) { |
| 6079 |
gen_helper_neon_qrdmulh_s16(tmp, cpu_env, tmp, tmp2); |
| 6080 |
} else {
|
| 6081 |
gen_helper_neon_qrdmulh_s32(tmp, cpu_env, tmp, tmp2); |
| 6082 |
} |
| 6083 |
} else if (op & 1) { |
| 6084 |
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
|
| 6085 |
gen_helper_vfp_muls(tmp, tmp, tmp2, fpstatus); |
| 6086 |
tcg_temp_free_ptr(fpstatus); |
| 6087 |
} else {
|
| 6088 |
switch (size) {
|
| 6089 |
case 0: gen_helper_neon_mul_u8(tmp, tmp, tmp2); break; |
| 6090 |
case 1: gen_helper_neon_mul_u16(tmp, tmp, tmp2); break; |
| 6091 |
case 2: tcg_gen_mul_i32(tmp, tmp, tmp2); break; |
| 6092 |
default: abort();
|
| 6093 |
} |
| 6094 |
} |
| 6095 |
tcg_temp_free_i32(tmp2); |
| 6096 |
if (op < 8) { |
| 6097 |
/* Accumulate. */
|
| 6098 |
tmp2 = neon_load_reg(rd, pass); |
| 6099 |
switch (op) {
|
| 6100 |
case 0: |
| 6101 |
gen_neon_add(size, tmp, tmp2); |
| 6102 |
break;
|
| 6103 |
case 1: |
| 6104 |
{
|
| 6105 |
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
|
| 6106 |
gen_helper_vfp_adds(tmp, tmp, tmp2, fpstatus); |
| 6107 |
tcg_temp_free_ptr(fpstatus); |
| 6108 |
break;
|
| 6109 |
} |
| 6110 |
case 4: |
| 6111 |
gen_neon_rsb(size, tmp, tmp2); |
| 6112 |
break;
|
| 6113 |
case 5: |
| 6114 |
{
|
| 6115 |
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
|
| 6116 |
gen_helper_vfp_subs(tmp, tmp2, tmp, fpstatus); |
| 6117 |
tcg_temp_free_ptr(fpstatus); |
| 6118 |
break;
|
| 6119 |
} |
| 6120 |
default:
|
| 6121 |
abort(); |
| 6122 |
} |
| 6123 |
tcg_temp_free_i32(tmp2); |
| 6124 |
} |
| 6125 |
neon_store_reg(rd, pass, tmp); |
| 6126 |
} |
| 6127 |
break;
|
| 6128 |
case 3: /* VQDMLAL scalar */ |
| 6129 |
case 7: /* VQDMLSL scalar */ |
| 6130 |
case 11: /* VQDMULL scalar */ |
| 6131 |
if (u == 1) { |
| 6132 |
return 1; |
| 6133 |
} |
| 6134 |
/* fall through */
|
| 6135 |
case 2: /* VMLAL sclar */ |
| 6136 |
case 6: /* VMLSL scalar */ |
| 6137 |
case 10: /* VMULL scalar */ |
| 6138 |
if (rd & 1) { |
| 6139 |
return 1; |
| 6140 |
} |
| 6141 |
tmp2 = neon_get_scalar(size, rm); |
| 6142 |
/* We need a copy of tmp2 because gen_neon_mull
|
| 6143 |
* deletes it during pass 0. */
|
| 6144 |
tmp4 = tcg_temp_new_i32(); |
| 6145 |
tcg_gen_mov_i32(tmp4, tmp2); |
| 6146 |
tmp3 = neon_load_reg(rn, 1);
|
| 6147 |
|
| 6148 |
for (pass = 0; pass < 2; pass++) { |
| 6149 |
if (pass == 0) { |
| 6150 |
tmp = neon_load_reg(rn, 0);
|
| 6151 |
} else {
|
| 6152 |
tmp = tmp3; |
| 6153 |
tmp2 = tmp4; |
| 6154 |
} |
| 6155 |
gen_neon_mull(cpu_V0, tmp, tmp2, size, u); |
| 6156 |
if (op != 11) { |
| 6157 |
neon_load_reg64(cpu_V1, rd + pass); |
| 6158 |
} |
| 6159 |
switch (op) {
|
| 6160 |
case 6: |
| 6161 |
gen_neon_negl(cpu_V0, size); |
| 6162 |
/* Fall through */
|
| 6163 |
case 2: |
| 6164 |
gen_neon_addl(size); |
| 6165 |
break;
|
| 6166 |
case 3: case 7: |
| 6167 |
gen_neon_addl_saturate(cpu_V0, cpu_V0, size); |
| 6168 |
if (op == 7) { |
| 6169 |
gen_neon_negl(cpu_V0, size); |
| 6170 |
} |
| 6171 |
gen_neon_addl_saturate(cpu_V0, cpu_V1, size); |
| 6172 |
break;
|
| 6173 |
case 10: |
| 6174 |
/* no-op */
|
| 6175 |
break;
|
| 6176 |
case 11: |
| 6177 |
gen_neon_addl_saturate(cpu_V0, cpu_V0, size); |
| 6178 |
break;
|
| 6179 |
default:
|
| 6180 |
abort(); |
| 6181 |
} |
| 6182 |
neon_store_reg64(cpu_V0, rd + pass); |
| 6183 |
} |
| 6184 |
|
| 6185 |
|
| 6186 |
break;
|
| 6187 |
default: /* 14 and 15 are RESERVED */ |
| 6188 |
return 1; |
| 6189 |
} |
| 6190 |
} |
| 6191 |
} else { /* size == 3 */ |
| 6192 |
if (!u) {
|
| 6193 |
/* Extract. */
|
| 6194 |
imm = (insn >> 8) & 0xf; |
| 6195 |
|
| 6196 |
if (imm > 7 && !q) |
| 6197 |
return 1; |
| 6198 |
|
| 6199 |
if (q && ((rd | rn | rm) & 1)) { |
| 6200 |
return 1; |
| 6201 |
} |
| 6202 |
|
| 6203 |
if (imm == 0) { |
| 6204 |
neon_load_reg64(cpu_V0, rn); |
| 6205 |
if (q) {
|
| 6206 |
neon_load_reg64(cpu_V1, rn + 1);
|
| 6207 |
} |
| 6208 |
} else if (imm == 8) { |
| 6209 |
neon_load_reg64(cpu_V0, rn + 1);
|
| 6210 |
if (q) {
|
| 6211 |
neon_load_reg64(cpu_V1, rm); |
| 6212 |
} |
| 6213 |
} else if (q) { |
| 6214 |
tmp64 = tcg_temp_new_i64(); |
| 6215 |
if (imm < 8) { |
| 6216 |
neon_load_reg64(cpu_V0, rn); |
| 6217 |
neon_load_reg64(tmp64, rn + 1);
|
| 6218 |
} else {
|
| 6219 |
neon_load_reg64(cpu_V0, rn + 1);
|
| 6220 |
neon_load_reg64(tmp64, rm); |
| 6221 |
} |
| 6222 |
tcg_gen_shri_i64(cpu_V0, cpu_V0, (imm & 7) * 8); |
| 6223 |
tcg_gen_shli_i64(cpu_V1, tmp64, 64 - ((imm & 7) * 8)); |
| 6224 |
tcg_gen_or_i64(cpu_V0, cpu_V0, cpu_V1); |
| 6225 |
if (imm < 8) { |
| 6226 |
neon_load_reg64(cpu_V1, rm); |
| 6227 |
} else {
|
| 6228 |
neon_load_reg64(cpu_V1, rm + 1);
|
| 6229 |
imm -= 8;
|
| 6230 |
} |
| 6231 |
tcg_gen_shli_i64(cpu_V1, cpu_V1, 64 - (imm * 8)); |
| 6232 |
tcg_gen_shri_i64(tmp64, tmp64, imm * 8);
|
| 6233 |
tcg_gen_or_i64(cpu_V1, cpu_V1, tmp64); |
| 6234 |
tcg_temp_free_i64(tmp64); |
| 6235 |
} else {
|
| 6236 |
/* BUGFIX */
|
| 6237 |
neon_load_reg64(cpu_V0, rn); |
| 6238 |
tcg_gen_shri_i64(cpu_V0, cpu_V0, imm * 8);
|
| 6239 |
neon_load_reg64(cpu_V1, rm); |
| 6240 |
tcg_gen_shli_i64(cpu_V1, cpu_V1, 64 - (imm * 8)); |
| 6241 |
tcg_gen_or_i64(cpu_V0, cpu_V0, cpu_V1); |
| 6242 |
} |
| 6243 |
neon_store_reg64(cpu_V0, rd); |
| 6244 |
if (q) {
|
| 6245 |
neon_store_reg64(cpu_V1, rd + 1);
|
| 6246 |
} |
| 6247 |
} else if ((insn & (1 << 11)) == 0) { |
| 6248 |
/* Two register misc. */
|
| 6249 |
op = ((insn >> 12) & 0x30) | ((insn >> 7) & 0xf); |
| 6250 |
size = (insn >> 18) & 3; |
| 6251 |
/* UNDEF for unknown op values and bad op-size combinations */
|
| 6252 |
if ((neon_2rm_sizes[op] & (1 << size)) == 0) { |
| 6253 |
return 1; |
| 6254 |
} |
| 6255 |
if ((op != NEON_2RM_VMOVN && op != NEON_2RM_VQMOVN) &&
|
| 6256 |
q && ((rm | rd) & 1)) {
|
| 6257 |
return 1; |
| 6258 |
} |
| 6259 |
switch (op) {
|
| 6260 |
case NEON_2RM_VREV64:
|
| 6261 |
for (pass = 0; pass < (q ? 2 : 1); pass++) { |
| 6262 |
tmp = neon_load_reg(rm, pass * 2);
|
| 6263 |
tmp2 = neon_load_reg(rm, pass * 2 + 1); |
| 6264 |
switch (size) {
|
| 6265 |
case 0: tcg_gen_bswap32_i32(tmp, tmp); break; |
| 6266 |
case 1: gen_swap_half(tmp); break; |
| 6267 |
case 2: /* no-op */ break; |
| 6268 |
default: abort();
|
| 6269 |
} |
| 6270 |
neon_store_reg(rd, pass * 2 + 1, tmp); |
| 6271 |
if (size == 2) { |
| 6272 |
neon_store_reg(rd, pass * 2, tmp2);
|
| 6273 |
} else {
|
| 6274 |
switch (size) {
|
| 6275 |
case 0: tcg_gen_bswap32_i32(tmp2, tmp2); break; |
| 6276 |
case 1: gen_swap_half(tmp2); break; |
| 6277 |
default: abort();
|
| 6278 |
} |
| 6279 |
neon_store_reg(rd, pass * 2, tmp2);
|
| 6280 |
} |
| 6281 |
} |
| 6282 |
break;
|
| 6283 |
case NEON_2RM_VPADDL: case NEON_2RM_VPADDL_U: |
| 6284 |
case NEON_2RM_VPADAL: case NEON_2RM_VPADAL_U: |
| 6285 |
for (pass = 0; pass < q + 1; pass++) { |
| 6286 |
tmp = neon_load_reg(rm, pass * 2);
|
| 6287 |
gen_neon_widen(cpu_V0, tmp, size, op & 1);
|
| 6288 |
tmp = neon_load_reg(rm, pass * 2 + 1); |
| 6289 |
gen_neon_widen(cpu_V1, tmp, size, op & 1);
|
| 6290 |
switch (size) {
|
| 6291 |
case 0: gen_helper_neon_paddl_u16(CPU_V001); break; |
| 6292 |
case 1: gen_helper_neon_paddl_u32(CPU_V001); break; |
| 6293 |
case 2: tcg_gen_add_i64(CPU_V001); break; |
| 6294 |
default: abort();
|
| 6295 |
} |
| 6296 |
if (op >= NEON_2RM_VPADAL) {
|
| 6297 |
/* Accumulate. */
|
| 6298 |
neon_load_reg64(cpu_V1, rd + pass); |
| 6299 |
gen_neon_addl(size); |
| 6300 |
} |
| 6301 |
neon_store_reg64(cpu_V0, rd + pass); |
| 6302 |
} |
| 6303 |
break;
|
| 6304 |
case NEON_2RM_VTRN:
|
| 6305 |
if (size == 2) { |
| 6306 |
int n;
|
| 6307 |
for (n = 0; n < (q ? 4 : 2); n += 2) { |
| 6308 |
tmp = neon_load_reg(rm, n); |
| 6309 |
tmp2 = neon_load_reg(rd, n + 1);
|
| 6310 |
neon_store_reg(rm, n, tmp2); |
| 6311 |
neon_store_reg(rd, n + 1, tmp);
|
| 6312 |
} |
| 6313 |
} else {
|
| 6314 |
goto elementwise;
|
| 6315 |
} |
| 6316 |
break;
|
| 6317 |
case NEON_2RM_VUZP:
|
| 6318 |
if (gen_neon_unzip(rd, rm, size, q)) {
|
| 6319 |
return 1; |
| 6320 |
} |
| 6321 |
break;
|
| 6322 |
case NEON_2RM_VZIP:
|
| 6323 |
if (gen_neon_zip(rd, rm, size, q)) {
|
| 6324 |
return 1; |
| 6325 |
} |
| 6326 |
break;
|
| 6327 |
case NEON_2RM_VMOVN: case NEON_2RM_VQMOVN: |
| 6328 |
/* also VQMOVUN; op field and mnemonics don't line up */
|
| 6329 |
if (rm & 1) { |
| 6330 |
return 1; |
| 6331 |
} |
| 6332 |
TCGV_UNUSED_I32(tmp2); |
| 6333 |
for (pass = 0; pass < 2; pass++) { |
| 6334 |
neon_load_reg64(cpu_V0, rm + pass); |
| 6335 |
tmp = tcg_temp_new_i32(); |
| 6336 |
gen_neon_narrow_op(op == NEON_2RM_VMOVN, q, size, |
| 6337 |
tmp, cpu_V0); |
| 6338 |
if (pass == 0) { |
| 6339 |
tmp2 = tmp; |
| 6340 |
} else {
|
| 6341 |
neon_store_reg(rd, 0, tmp2);
|
| 6342 |
neon_store_reg(rd, 1, tmp);
|
| 6343 |
} |
| 6344 |
} |
| 6345 |
break;
|
| 6346 |
case NEON_2RM_VSHLL:
|
| 6347 |
if (q || (rd & 1)) { |
| 6348 |
return 1; |
| 6349 |
} |
| 6350 |
tmp = neon_load_reg(rm, 0);
|
| 6351 |
tmp2 = neon_load_reg(rm, 1);
|
| 6352 |
for (pass = 0; pass < 2; pass++) { |
| 6353 |
if (pass == 1) |
| 6354 |
tmp = tmp2; |
| 6355 |
gen_neon_widen(cpu_V0, tmp, size, 1);
|
| 6356 |
tcg_gen_shli_i64(cpu_V0, cpu_V0, 8 << size);
|
| 6357 |
neon_store_reg64(cpu_V0, rd + pass); |
| 6358 |
} |
| 6359 |
break;
|
| 6360 |
case NEON_2RM_VCVT_F16_F32:
|
| 6361 |
if (!arm_feature(env, ARM_FEATURE_VFP_FP16) ||
|
| 6362 |
q || (rm & 1)) {
|
| 6363 |
return 1; |
| 6364 |
} |
| 6365 |
tmp = tcg_temp_new_i32(); |
| 6366 |
tmp2 = tcg_temp_new_i32(); |
| 6367 |
tcg_gen_ld_f32(cpu_F0s, cpu_env, neon_reg_offset(rm, 0));
|
| 6368 |
gen_helper_neon_fcvt_f32_to_f16(tmp, cpu_F0s, cpu_env); |
| 6369 |
tcg_gen_ld_f32(cpu_F0s, cpu_env, neon_reg_offset(rm, 1));
|
| 6370 |
gen_helper_neon_fcvt_f32_to_f16(tmp2, cpu_F0s, cpu_env); |
| 6371 |
tcg_gen_shli_i32(tmp2, tmp2, 16);
|
| 6372 |
tcg_gen_or_i32(tmp2, tmp2, tmp); |
| 6373 |
tcg_gen_ld_f32(cpu_F0s, cpu_env, neon_reg_offset(rm, 2));
|
| 6374 |
gen_helper_neon_fcvt_f32_to_f16(tmp, cpu_F0s, cpu_env); |
| 6375 |
tcg_gen_ld_f32(cpu_F0s, cpu_env, neon_reg_offset(rm, 3));
|
| 6376 |
neon_store_reg(rd, 0, tmp2);
|
| 6377 |
tmp2 = tcg_temp_new_i32(); |
| 6378 |
gen_helper_neon_fcvt_f32_to_f16(tmp2, cpu_F0s, cpu_env); |
| 6379 |
tcg_gen_shli_i32(tmp2, tmp2, 16);
|
| 6380 |
tcg_gen_or_i32(tmp2, tmp2, tmp); |
| 6381 |
neon_store_reg(rd, 1, tmp2);
|
| 6382 |
tcg_temp_free_i32(tmp); |
| 6383 |
break;
|
| 6384 |
case NEON_2RM_VCVT_F32_F16:
|
| 6385 |
if (!arm_feature(env, ARM_FEATURE_VFP_FP16) ||
|
| 6386 |
q || (rd & 1)) {
|
| 6387 |
return 1; |
| 6388 |
} |
| 6389 |
tmp3 = tcg_temp_new_i32(); |
| 6390 |
tmp = neon_load_reg(rm, 0);
|
| 6391 |
tmp2 = neon_load_reg(rm, 1);
|
| 6392 |
tcg_gen_ext16u_i32(tmp3, tmp); |
| 6393 |
gen_helper_neon_fcvt_f16_to_f32(cpu_F0s, tmp3, cpu_env); |
| 6394 |
tcg_gen_st_f32(cpu_F0s, cpu_env, neon_reg_offset(rd, 0));
|
| 6395 |
tcg_gen_shri_i32(tmp3, tmp, 16);
|
| 6396 |
gen_helper_neon_fcvt_f16_to_f32(cpu_F0s, tmp3, cpu_env); |
| 6397 |
tcg_gen_st_f32(cpu_F0s, cpu_env, neon_reg_offset(rd, 1));
|
| 6398 |
tcg_temp_free_i32(tmp); |
| 6399 |
tcg_gen_ext16u_i32(tmp3, tmp2); |
| 6400 |
gen_helper_neon_fcvt_f16_to_f32(cpu_F0s, tmp3, cpu_env); |
| 6401 |
tcg_gen_st_f32(cpu_F0s, cpu_env, neon_reg_offset(rd, 2));
|
| 6402 |
tcg_gen_shri_i32(tmp3, tmp2, 16);
|
| 6403 |
gen_helper_neon_fcvt_f16_to_f32(cpu_F0s, tmp3, cpu_env); |
| 6404 |
tcg_gen_st_f32(cpu_F0s, cpu_env, neon_reg_offset(rd, 3));
|
| 6405 |
tcg_temp_free_i32(tmp2); |
| 6406 |
tcg_temp_free_i32(tmp3); |
| 6407 |
break;
|
| 6408 |
case NEON_2RM_AESE: case NEON_2RM_AESMC: |
| 6409 |
if (!arm_feature(env, ARM_FEATURE_V8_AES)
|
| 6410 |
|| ((rm | rd) & 1)) {
|
| 6411 |
return 1; |
| 6412 |
} |
| 6413 |
tmp = tcg_const_i32(rd); |
| 6414 |
tmp2 = tcg_const_i32(rm); |
| 6415 |
|
| 6416 |
/* Bit 6 is the lowest opcode bit; it distinguishes between
|
| 6417 |
* encryption (AESE/AESMC) and decryption (AESD/AESIMC)
|
| 6418 |
*/
|
| 6419 |
tmp3 = tcg_const_i32(extract32(insn, 6, 1)); |
| 6420 |
|
| 6421 |
if (op == NEON_2RM_AESE) {
|
| 6422 |
gen_helper_crypto_aese(cpu_env, tmp, tmp2, tmp3); |
| 6423 |
} else {
|
| 6424 |
gen_helper_crypto_aesmc(cpu_env, tmp, tmp2, tmp3); |
| 6425 |
} |
| 6426 |
tcg_temp_free_i32(tmp); |
| 6427 |
tcg_temp_free_i32(tmp2); |
| 6428 |
tcg_temp_free_i32(tmp3); |
| 6429 |
break;
|
| 6430 |
default:
|
| 6431 |
elementwise:
|
| 6432 |
for (pass = 0; pass < (q ? 4 : 2); pass++) { |
| 6433 |
if (neon_2rm_is_float_op(op)) {
|
| 6434 |
tcg_gen_ld_f32(cpu_F0s, cpu_env, |
| 6435 |
neon_reg_offset(rm, pass)); |
| 6436 |
TCGV_UNUSED_I32(tmp); |
| 6437 |
} else {
|
| 6438 |
tmp = neon_load_reg(rm, pass); |
| 6439 |
} |
| 6440 |
switch (op) {
|
| 6441 |
case NEON_2RM_VREV32:
|
| 6442 |
switch (size) {
|
| 6443 |
case 0: tcg_gen_bswap32_i32(tmp, tmp); break; |
| 6444 |
case 1: gen_swap_half(tmp); break; |
| 6445 |
default: abort();
|
| 6446 |
} |
| 6447 |
break;
|
| 6448 |
case NEON_2RM_VREV16:
|
| 6449 |
gen_rev16(tmp); |
| 6450 |
break;
|
| 6451 |
case NEON_2RM_VCLS:
|
| 6452 |
switch (size) {
|
| 6453 |
case 0: gen_helper_neon_cls_s8(tmp, tmp); break; |
| 6454 |
case 1: gen_helper_neon_cls_s16(tmp, tmp); break; |
| 6455 |
case 2: gen_helper_neon_cls_s32(tmp, tmp); break; |
| 6456 |
default: abort();
|
| 6457 |
} |
| 6458 |
break;
|
| 6459 |
case NEON_2RM_VCLZ:
|
| 6460 |
switch (size) {
|
| 6461 |
case 0: gen_helper_neon_clz_u8(tmp, tmp); break; |
| 6462 |
case 1: gen_helper_neon_clz_u16(tmp, tmp); break; |
| 6463 |
case 2: gen_helper_clz(tmp, tmp); break; |
| 6464 |
default: abort();
|
| 6465 |
} |
| 6466 |
break;
|
| 6467 |
case NEON_2RM_VCNT:
|
| 6468 |
gen_helper_neon_cnt_u8(tmp, tmp); |
| 6469 |
break;
|
| 6470 |
case NEON_2RM_VMVN:
|
| 6471 |
tcg_gen_not_i32(tmp, tmp); |
| 6472 |
break;
|
| 6473 |
case NEON_2RM_VQABS:
|
| 6474 |
switch (size) {
|
| 6475 |
case 0: |
| 6476 |
gen_helper_neon_qabs_s8(tmp, cpu_env, tmp); |
| 6477 |
break;
|
| 6478 |
case 1: |
| 6479 |
gen_helper_neon_qabs_s16(tmp, cpu_env, tmp); |
| 6480 |
break;
|
| 6481 |
case 2: |
| 6482 |
gen_helper_neon_qabs_s32(tmp, cpu_env, tmp); |
| 6483 |
break;
|
| 6484 |
default: abort();
|
| 6485 |
} |
| 6486 |
break;
|
| 6487 |
case NEON_2RM_VQNEG:
|
| 6488 |
switch (size) {
|
| 6489 |
case 0: |
| 6490 |
gen_helper_neon_qneg_s8(tmp, cpu_env, tmp); |
| 6491 |
break;
|
| 6492 |
case 1: |
| 6493 |
gen_helper_neon_qneg_s16(tmp, cpu_env, tmp); |
| 6494 |
break;
|
| 6495 |
case 2: |
| 6496 |
gen_helper_neon_qneg_s32(tmp, cpu_env, tmp); |
| 6497 |
break;
|
| 6498 |
default: abort();
|
| 6499 |
} |
| 6500 |
break;
|
| 6501 |
case NEON_2RM_VCGT0: case NEON_2RM_VCLE0: |
| 6502 |
tmp2 = tcg_const_i32(0);
|
| 6503 |
switch(size) {
|
| 6504 |
case 0: gen_helper_neon_cgt_s8(tmp, tmp, tmp2); break; |
| 6505 |
case 1: gen_helper_neon_cgt_s16(tmp, tmp, tmp2); break; |
| 6506 |
case 2: gen_helper_neon_cgt_s32(tmp, tmp, tmp2); break; |
| 6507 |
default: abort();
|
| 6508 |
} |
| 6509 |
tcg_temp_free_i32(tmp2); |
| 6510 |
if (op == NEON_2RM_VCLE0) {
|
| 6511 |
tcg_gen_not_i32(tmp, tmp); |
| 6512 |
} |
| 6513 |
break;
|
| 6514 |
case NEON_2RM_VCGE0: case NEON_2RM_VCLT0: |
| 6515 |
tmp2 = tcg_const_i32(0);
|
| 6516 |
switch(size) {
|
| 6517 |
case 0: gen_helper_neon_cge_s8(tmp, tmp, tmp2); break; |
| 6518 |
case 1: gen_helper_neon_cge_s16(tmp, tmp, tmp2); break; |
| 6519 |
case 2: gen_helper_neon_cge_s32(tmp, tmp, tmp2); break; |
| 6520 |
default: abort();
|
| 6521 |
} |
| 6522 |
tcg_temp_free_i32(tmp2); |
| 6523 |
if (op == NEON_2RM_VCLT0) {
|
| 6524 |
tcg_gen_not_i32(tmp, tmp); |
| 6525 |
} |
| 6526 |
break;
|
| 6527 |
case NEON_2RM_VCEQ0:
|
| 6528 |
tmp2 = tcg_const_i32(0);
|
| 6529 |
switch(size) {
|
| 6530 |
case 0: gen_helper_neon_ceq_u8(tmp, tmp, tmp2); break; |
| 6531 |
case 1: gen_helper_neon_ceq_u16(tmp, tmp, tmp2); break; |
| 6532 |
case 2: gen_helper_neon_ceq_u32(tmp, tmp, tmp2); break; |
| 6533 |
default: abort();
|
| 6534 |
} |
| 6535 |
tcg_temp_free_i32(tmp2); |
| 6536 |
break;
|
| 6537 |
case NEON_2RM_VABS:
|
| 6538 |
switch(size) {
|
| 6539 |
case 0: gen_helper_neon_abs_s8(tmp, tmp); break; |
| 6540 |
case 1: gen_helper_neon_abs_s16(tmp, tmp); break; |
| 6541 |
case 2: tcg_gen_abs_i32(tmp, tmp); break; |
| 6542 |
default: abort();
|
| 6543 |
} |
| 6544 |
break;
|
| 6545 |
case NEON_2RM_VNEG:
|
| 6546 |
tmp2 = tcg_const_i32(0);
|
| 6547 |
gen_neon_rsb(size, tmp, tmp2); |
| 6548 |
tcg_temp_free_i32(tmp2); |
| 6549 |
break;
|
| 6550 |
case NEON_2RM_VCGT0_F:
|
| 6551 |
{
|
| 6552 |
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
|
| 6553 |
tmp2 = tcg_const_i32(0);
|
| 6554 |
gen_helper_neon_cgt_f32(tmp, tmp, tmp2, fpstatus); |
| 6555 |
tcg_temp_free_i32(tmp2); |
| 6556 |
tcg_temp_free_ptr(fpstatus); |
| 6557 |
break;
|
| 6558 |
} |
| 6559 |
case NEON_2RM_VCGE0_F:
|
| 6560 |
{
|
| 6561 |
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
|
| 6562 |
tmp2 = tcg_const_i32(0);
|
| 6563 |
gen_helper_neon_cge_f32(tmp, tmp, tmp2, fpstatus); |
| 6564 |
tcg_temp_free_i32(tmp2); |
| 6565 |
tcg_temp_free_ptr(fpstatus); |
| 6566 |
break;
|
| 6567 |
} |
| 6568 |
case NEON_2RM_VCEQ0_F:
|
| 6569 |
{
|
| 6570 |
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
|
| 6571 |
tmp2 = tcg_const_i32(0);
|
| 6572 |
gen_helper_neon_ceq_f32(tmp, tmp, tmp2, fpstatus); |
| 6573 |
tcg_temp_free_i32(tmp2); |
| 6574 |
tcg_temp_free_ptr(fpstatus); |
| 6575 |
break;
|
| 6576 |
} |
| 6577 |
case NEON_2RM_VCLE0_F:
|
| 6578 |
{
|
| 6579 |
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
|
| 6580 |
tmp2 = tcg_const_i32(0);
|
| 6581 |
gen_helper_neon_cge_f32(tmp, tmp2, tmp, fpstatus); |
| 6582 |
tcg_temp_free_i32(tmp2); |
| 6583 |
tcg_temp_free_ptr(fpstatus); |
| 6584 |
break;
|
| 6585 |
} |
| 6586 |
case NEON_2RM_VCLT0_F:
|
| 6587 |
{
|
| 6588 |
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
|
| 6589 |
tmp2 = tcg_const_i32(0);
|
| 6590 |
gen_helper_neon_cgt_f32(tmp, tmp2, tmp, fpstatus); |
| 6591 |
tcg_temp_free_i32(tmp2); |
| 6592 |
tcg_temp_free_ptr(fpstatus); |
| 6593 |
break;
|
| 6594 |
} |
| 6595 |
case NEON_2RM_VABS_F:
|
| 6596 |
gen_vfp_abs(0);
|
| 6597 |
break;
|
| 6598 |
case NEON_2RM_VNEG_F:
|
| 6599 |
gen_vfp_neg(0);
|
| 6600 |
break;
|
| 6601 |
case NEON_2RM_VSWP:
|
| 6602 |
tmp2 = neon_load_reg(rd, pass); |
| 6603 |
neon_store_reg(rm, pass, tmp2); |
| 6604 |
break;
|
| 6605 |
case NEON_2RM_VTRN:
|
| 6606 |
tmp2 = neon_load_reg(rd, pass); |
| 6607 |
switch (size) {
|
| 6608 |
case 0: gen_neon_trn_u8(tmp, tmp2); break; |
| 6609 |
case 1: gen_neon_trn_u16(tmp, tmp2); break; |
| 6610 |
default: abort();
|
| 6611 |
} |
| 6612 |
neon_store_reg(rm, pass, tmp2); |
| 6613 |
break;
|
| 6614 |
case NEON_2RM_VRINTN:
|
| 6615 |
case NEON_2RM_VRINTA:
|
| 6616 |
case NEON_2RM_VRINTM:
|
| 6617 |
case NEON_2RM_VRINTP:
|
| 6618 |
case NEON_2RM_VRINTZ:
|
| 6619 |
{
|
| 6620 |
TCGv_i32 tcg_rmode; |
| 6621 |
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
|
| 6622 |
int rmode;
|
| 6623 |
|
| 6624 |
if (op == NEON_2RM_VRINTZ) {
|
| 6625 |
rmode = FPROUNDING_ZERO; |
| 6626 |
} else {
|
| 6627 |
rmode = fp_decode_rm[((op & 0x6) >> 1) ^ 1]; |
| 6628 |
} |
| 6629 |
|
| 6630 |
tcg_rmode = tcg_const_i32(arm_rmode_to_sf(rmode)); |
| 6631 |
gen_helper_set_neon_rmode(tcg_rmode, tcg_rmode, |
| 6632 |
cpu_env); |
| 6633 |
gen_helper_rints(cpu_F0s, cpu_F0s, fpstatus); |
| 6634 |
gen_helper_set_neon_rmode(tcg_rmode, tcg_rmode, |
| 6635 |
cpu_env); |
| 6636 |
tcg_temp_free_ptr(fpstatus); |
| 6637 |
tcg_temp_free_i32(tcg_rmode); |
| 6638 |
break;
|
| 6639 |
} |
| 6640 |
case NEON_2RM_VRINTX:
|
| 6641 |
{
|
| 6642 |
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
|
| 6643 |
gen_helper_rints_exact(cpu_F0s, cpu_F0s, fpstatus); |
| 6644 |
tcg_temp_free_ptr(fpstatus); |
| 6645 |
break;
|
| 6646 |
} |
| 6647 |
case NEON_2RM_VCVTAU:
|
| 6648 |
case NEON_2RM_VCVTAS:
|
| 6649 |
case NEON_2RM_VCVTNU:
|
| 6650 |
case NEON_2RM_VCVTNS:
|
| 6651 |
case NEON_2RM_VCVTPU:
|
| 6652 |
case NEON_2RM_VCVTPS:
|
| 6653 |
case NEON_2RM_VCVTMU:
|
| 6654 |
case NEON_2RM_VCVTMS:
|
| 6655 |
{
|
| 6656 |
bool is_signed = !extract32(insn, 7, 1); |
| 6657 |
TCGv_ptr fpst = get_fpstatus_ptr(1);
|
| 6658 |
TCGv_i32 tcg_rmode, tcg_shift; |
| 6659 |
int rmode = fp_decode_rm[extract32(insn, 8, 2)]; |
| 6660 |
|
| 6661 |
tcg_shift = tcg_const_i32(0);
|
| 6662 |
tcg_rmode = tcg_const_i32(arm_rmode_to_sf(rmode)); |
| 6663 |
gen_helper_set_neon_rmode(tcg_rmode, tcg_rmode, |
| 6664 |
cpu_env); |
| 6665 |
|
| 6666 |
if (is_signed) {
|
| 6667 |
gen_helper_vfp_tosls(cpu_F0s, cpu_F0s, |
| 6668 |
tcg_shift, fpst); |
| 6669 |
} else {
|
| 6670 |
gen_helper_vfp_touls(cpu_F0s, cpu_F0s, |
| 6671 |
tcg_shift, fpst); |
| 6672 |
} |
| 6673 |
|
| 6674 |
gen_helper_set_neon_rmode(tcg_rmode, tcg_rmode, |
| 6675 |
cpu_env); |
| 6676 |
tcg_temp_free_i32(tcg_rmode); |
| 6677 |
tcg_temp_free_i32(tcg_shift); |
| 6678 |
tcg_temp_free_ptr(fpst); |
| 6679 |
break;
|
| 6680 |
} |
| 6681 |
case NEON_2RM_VRECPE:
|
| 6682 |
gen_helper_recpe_u32(tmp, tmp, cpu_env); |
| 6683 |
break;
|
| 6684 |
case NEON_2RM_VRSQRTE:
|
| 6685 |
gen_helper_rsqrte_u32(tmp, tmp, cpu_env); |
| 6686 |
break;
|
| 6687 |
case NEON_2RM_VRECPE_F:
|
| 6688 |
gen_helper_recpe_f32(cpu_F0s, cpu_F0s, cpu_env); |
| 6689 |
break;
|
| 6690 |
case NEON_2RM_VRSQRTE_F:
|
| 6691 |
gen_helper_rsqrte_f32(cpu_F0s, cpu_F0s, cpu_env); |
| 6692 |
break;
|
| 6693 |
case NEON_2RM_VCVT_FS: /* VCVT.F32.S32 */ |
| 6694 |
gen_vfp_sito(0, 1); |
| 6695 |
break;
|
| 6696 |
case NEON_2RM_VCVT_FU: /* VCVT.F32.U32 */ |
| 6697 |
gen_vfp_uito(0, 1); |
| 6698 |
break;
|
| 6699 |
case NEON_2RM_VCVT_SF: /* VCVT.S32.F32 */ |
| 6700 |
gen_vfp_tosiz(0, 1); |
| 6701 |
break;
|
| 6702 |
case NEON_2RM_VCVT_UF: /* VCVT.U32.F32 */ |
| 6703 |
gen_vfp_touiz(0, 1); |
| 6704 |
break;
|
| 6705 |
default:
|
| 6706 |
/* Reserved op values were caught by the
|
| 6707 |
* neon_2rm_sizes[] check earlier.
|
| 6708 |
*/
|
| 6709 |
abort(); |
| 6710 |
} |
| 6711 |
if (neon_2rm_is_float_op(op)) {
|
| 6712 |
tcg_gen_st_f32(cpu_F0s, cpu_env, |
| 6713 |
neon_reg_offset(rd, pass)); |
| 6714 |
} else {
|
| 6715 |
neon_store_reg(rd, pass, tmp); |
| 6716 |
} |
| 6717 |
} |
| 6718 |
break;
|
| 6719 |
} |
| 6720 |
} else if ((insn & (1 << 10)) == 0) { |
| 6721 |
/* VTBL, VTBX. */
|
| 6722 |
int n = ((insn >> 8) & 3) + 1; |
| 6723 |
if ((rn + n) > 32) { |
| 6724 |
/* This is UNPREDICTABLE; we choose to UNDEF to avoid the
|
| 6725 |
* helper function running off the end of the register file.
|
| 6726 |
*/
|
| 6727 |
return 1; |
| 6728 |
} |
| 6729 |
n <<= 3;
|
| 6730 |
if (insn & (1 << 6)) { |
| 6731 |
tmp = neon_load_reg(rd, 0);
|
| 6732 |
} else {
|
| 6733 |
tmp = tcg_temp_new_i32(); |
| 6734 |
tcg_gen_movi_i32(tmp, 0);
|
| 6735 |
} |
| 6736 |
tmp2 = neon_load_reg(rm, 0);
|
| 6737 |
tmp4 = tcg_const_i32(rn); |
| 6738 |
tmp5 = tcg_const_i32(n); |
| 6739 |
gen_helper_neon_tbl(tmp2, cpu_env, tmp2, tmp, tmp4, tmp5); |
| 6740 |
tcg_temp_free_i32(tmp); |
| 6741 |
if (insn & (1 << 6)) { |
| 6742 |
tmp = neon_load_reg(rd, 1);
|
| 6743 |
} else {
|
| 6744 |
tmp = tcg_temp_new_i32(); |
| 6745 |
tcg_gen_movi_i32(tmp, 0);
|
| 6746 |
} |
| 6747 |
tmp3 = neon_load_reg(rm, 1);
|
| 6748 |
gen_helper_neon_tbl(tmp3, cpu_env, tmp3, tmp, tmp4, tmp5); |
| 6749 |
tcg_temp_free_i32(tmp5); |
| 6750 |
tcg_temp_free_i32(tmp4); |
| 6751 |
neon_store_reg(rd, 0, tmp2);
|
| 6752 |
neon_store_reg(rd, 1, tmp3);
|
| 6753 |
tcg_temp_free_i32(tmp); |
| 6754 |
} else if ((insn & 0x380) == 0) { |
| 6755 |
/* VDUP */
|
| 6756 |
if ((insn & (7 << 16)) == 0 || (q && (rd & 1))) { |
| 6757 |
return 1; |
| 6758 |
} |
| 6759 |
if (insn & (1 << 19)) { |
| 6760 |
tmp = neon_load_reg(rm, 1);
|
| 6761 |
} else {
|
| 6762 |
tmp = neon_load_reg(rm, 0);
|
| 6763 |
} |
| 6764 |
if (insn & (1 << 16)) { |
| 6765 |
gen_neon_dup_u8(tmp, ((insn >> 17) & 3) * 8); |
| 6766 |
} else if (insn & (1 << 17)) { |
| 6767 |
if ((insn >> 18) & 1) |
| 6768 |
gen_neon_dup_high16(tmp); |
| 6769 |
else
|
| 6770 |
gen_neon_dup_low16(tmp); |
| 6771 |
} |
| 6772 |
for (pass = 0; pass < (q ? 4 : 2); pass++) { |
| 6773 |
tmp2 = tcg_temp_new_i32(); |
| 6774 |
tcg_gen_mov_i32(tmp2, tmp); |
| 6775 |
neon_store_reg(rd, pass, tmp2); |
| 6776 |
} |
| 6777 |
tcg_temp_free_i32(tmp); |
| 6778 |
} else {
|
| 6779 |
return 1; |
| 6780 |
} |
| 6781 |
} |
| 6782 |
} |
| 6783 |
return 0; |
| 6784 |
} |
| 6785 |
|
| 6786 |
static int disas_coproc_insn(CPUARMState * env, DisasContext *s, uint32_t insn) |
| 6787 |
{
|
| 6788 |
int cpnum, is64, crn, crm, opc1, opc2, isread, rt, rt2;
|
| 6789 |
const ARMCPRegInfo *ri;
|
| 6790 |
|
| 6791 |
cpnum = (insn >> 8) & 0xf; |
| 6792 |
if (arm_feature(env, ARM_FEATURE_XSCALE)
|
| 6793 |
&& ((env->cp15.c15_cpar ^ 0x3fff) & (1 << cpnum))) |
| 6794 |
return 1; |
| 6795 |
|
| 6796 |
/* First check for coprocessor space used for actual instructions */
|
| 6797 |
switch (cpnum) {
|
| 6798 |
case 0: |
| 6799 |
case 1: |
| 6800 |
if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
|
| 6801 |
return disas_iwmmxt_insn(env, s, insn);
|
| 6802 |
} else if (arm_feature(env, ARM_FEATURE_XSCALE)) { |
| 6803 |
return disas_dsp_insn(env, s, insn);
|
| 6804 |
} |
| 6805 |
return 1; |
| 6806 |
default:
|
| 6807 |
break;
|
| 6808 |
} |
| 6809 |
|
| 6810 |
/* Otherwise treat as a generic register access */
|
| 6811 |
is64 = (insn & (1 << 25)) == 0; |
| 6812 |
if (!is64 && ((insn & (1 << 4)) == 0)) { |
| 6813 |
/* cdp */
|
| 6814 |
return 1; |
| 6815 |
} |
| 6816 |
|
| 6817 |
crm = insn & 0xf;
|
| 6818 |
if (is64) {
|
| 6819 |
crn = 0;
|
| 6820 |
opc1 = (insn >> 4) & 0xf; |
| 6821 |
opc2 = 0;
|
| 6822 |
rt2 = (insn >> 16) & 0xf; |
| 6823 |
} else {
|
| 6824 |
crn = (insn >> 16) & 0xf; |
| 6825 |
opc1 = (insn >> 21) & 7; |
| 6826 |
opc2 = (insn >> 5) & 7; |
| 6827 |
rt2 = 0;
|
| 6828 |
} |
| 6829 |
isread = (insn >> 20) & 1; |
| 6830 |
rt = (insn >> 12) & 0xf; |
| 6831 |
|
| 6832 |
ri = get_arm_cp_reginfo(s->cp_regs, |
| 6833 |
ENCODE_CP_REG(cpnum, is64, crn, crm, opc1, opc2)); |
| 6834 |
if (ri) {
|
| 6835 |
/* Check access permissions */
|
| 6836 |
if (!cp_access_ok(s->current_pl, ri, isread)) {
|
| 6837 |
return 1; |
| 6838 |
} |
| 6839 |
|
| 6840 |
if (ri->accessfn) {
|
| 6841 |
/* Emit code to perform further access permissions checks at
|
| 6842 |
* runtime; this may result in an exception.
|
| 6843 |
*/
|
| 6844 |
TCGv_ptr tmpptr; |
| 6845 |
gen_set_pc_im(s, s->pc); |
| 6846 |
tmpptr = tcg_const_ptr(ri); |
| 6847 |
gen_helper_access_check_cp_reg(cpu_env, tmpptr); |
| 6848 |
tcg_temp_free_ptr(tmpptr); |
| 6849 |
} |
| 6850 |
|
| 6851 |
/* Handle special cases first */
|
| 6852 |
switch (ri->type & ~(ARM_CP_FLAG_MASK & ~ARM_CP_SPECIAL)) {
|
| 6853 |
case ARM_CP_NOP:
|
| 6854 |
return 0; |
| 6855 |
case ARM_CP_WFI:
|
| 6856 |
if (isread) {
|
| 6857 |
return 1; |
| 6858 |
} |
| 6859 |
gen_set_pc_im(s, s->pc); |
| 6860 |
s->is_jmp = DISAS_WFI; |
| 6861 |
return 0; |
| 6862 |
default:
|
| 6863 |
break;
|
| 6864 |
} |
| 6865 |
|
| 6866 |
if (use_icount && (ri->type & ARM_CP_IO)) {
|
| 6867 |
gen_io_start(); |
| 6868 |
} |
| 6869 |
|
| 6870 |
if (isread) {
|
| 6871 |
/* Read */
|
| 6872 |
if (is64) {
|
| 6873 |
TCGv_i64 tmp64; |
| 6874 |
TCGv_i32 tmp; |
| 6875 |
if (ri->type & ARM_CP_CONST) {
|
| 6876 |
tmp64 = tcg_const_i64(ri->resetvalue); |
| 6877 |
} else if (ri->readfn) { |
| 6878 |
TCGv_ptr tmpptr; |
| 6879 |
tmp64 = tcg_temp_new_i64(); |
| 6880 |
tmpptr = tcg_const_ptr(ri); |
| 6881 |
gen_helper_get_cp_reg64(tmp64, cpu_env, tmpptr); |
| 6882 |
tcg_temp_free_ptr(tmpptr); |
| 6883 |
} else {
|
| 6884 |
tmp64 = tcg_temp_new_i64(); |
| 6885 |
tcg_gen_ld_i64(tmp64, cpu_env, ri->fieldoffset); |
| 6886 |
} |
| 6887 |
tmp = tcg_temp_new_i32(); |
| 6888 |
tcg_gen_trunc_i64_i32(tmp, tmp64); |
| 6889 |
store_reg(s, rt, tmp); |
| 6890 |
tcg_gen_shri_i64(tmp64, tmp64, 32);
|
| 6891 |
tmp = tcg_temp_new_i32(); |
| 6892 |
tcg_gen_trunc_i64_i32(tmp, tmp64); |
| 6893 |
tcg_temp_free_i64(tmp64); |
| 6894 |
store_reg(s, rt2, tmp); |
| 6895 |
} else {
|
| 6896 |
TCGv_i32 tmp; |
| 6897 |
if (ri->type & ARM_CP_CONST) {
|
| 6898 |
tmp = tcg_const_i32(ri->resetvalue); |
| 6899 |
} else if (ri->readfn) { |
| 6900 |
TCGv_ptr tmpptr; |
| 6901 |
tmp = tcg_temp_new_i32(); |
| 6902 |
tmpptr = tcg_const_ptr(ri); |
| 6903 |
gen_helper_get_cp_reg(tmp, cpu_env, tmpptr); |
| 6904 |
tcg_temp_free_ptr(tmpptr); |
| 6905 |
} else {
|
| 6906 |
tmp = load_cpu_offset(ri->fieldoffset); |
| 6907 |
} |
| 6908 |
if (rt == 15) { |
| 6909 |
/* Destination register of r15 for 32 bit loads sets
|
| 6910 |
* the condition codes from the high 4 bits of the value
|
| 6911 |
*/
|
| 6912 |
gen_set_nzcv(tmp); |
| 6913 |
tcg_temp_free_i32(tmp); |
| 6914 |
} else {
|
| 6915 |
store_reg(s, rt, tmp); |
| 6916 |
} |
| 6917 |
} |
| 6918 |
} else {
|
| 6919 |
/* Write */
|
| 6920 |
if (ri->type & ARM_CP_CONST) {
|
| 6921 |
/* If not forbidden by access permissions, treat as WI */
|
| 6922 |
return 0; |
| 6923 |
} |
| 6924 |
|
| 6925 |
if (is64) {
|
| 6926 |
TCGv_i32 tmplo, tmphi; |
| 6927 |
TCGv_i64 tmp64 = tcg_temp_new_i64(); |
| 6928 |
tmplo = load_reg(s, rt); |
| 6929 |
tmphi = load_reg(s, rt2); |
| 6930 |
tcg_gen_concat_i32_i64(tmp64, tmplo, tmphi); |
| 6931 |
tcg_temp_free_i32(tmplo); |
| 6932 |
tcg_temp_free_i32(tmphi); |
| 6933 |
if (ri->writefn) {
|
| 6934 |
TCGv_ptr tmpptr = tcg_const_ptr(ri); |
| 6935 |
gen_helper_set_cp_reg64(cpu_env, tmpptr, tmp64); |
| 6936 |
tcg_temp_free_ptr(tmpptr); |
| 6937 |
} else {
|
| 6938 |
tcg_gen_st_i64(tmp64, cpu_env, ri->fieldoffset); |
| 6939 |
} |
| 6940 |
tcg_temp_free_i64(tmp64); |
| 6941 |
} else {
|
| 6942 |
if (ri->writefn) {
|
| 6943 |
TCGv_i32 tmp; |
| 6944 |
TCGv_ptr tmpptr; |
| 6945 |
tmp = load_reg(s, rt); |
| 6946 |
tmpptr = tcg_const_ptr(ri); |
| 6947 |
gen_helper_set_cp_reg(cpu_env, tmpptr, tmp); |
| 6948 |
tcg_temp_free_ptr(tmpptr); |
| 6949 |
tcg_temp_free_i32(tmp); |
| 6950 |
} else {
|
| 6951 |
TCGv_i32 tmp = load_reg(s, rt); |
| 6952 |
store_cpu_offset(tmp, ri->fieldoffset); |
| 6953 |
} |
| 6954 |
} |
| 6955 |
} |
| 6956 |
|
| 6957 |
if (use_icount && (ri->type & ARM_CP_IO)) {
|
| 6958 |
/* I/O operations must end the TB here (whether read or write) */
|
| 6959 |
gen_io_end(); |
| 6960 |
gen_lookup_tb(s); |
| 6961 |
} else if (!isread && !(ri->type & ARM_CP_SUPPRESS_TB_END)) { |
| 6962 |
/* We default to ending the TB on a coprocessor register write,
|
| 6963 |
* but allow this to be suppressed by the register definition
|
| 6964 |
* (usually only necessary to work around guest bugs).
|
| 6965 |
*/
|
| 6966 |
gen_lookup_tb(s); |
| 6967 |
} |
| 6968 |
|
| 6969 |
return 0; |
| 6970 |
} |
| 6971 |
|
| 6972 |
/* Unknown register; this might be a guest error or a QEMU
|
| 6973 |
* unimplemented feature.
|
| 6974 |
*/
|
| 6975 |
if (is64) {
|
| 6976 |
qemu_log_mask(LOG_UNIMP, "%s access to unsupported AArch32 "
|
| 6977 |
"64 bit system register cp:%d opc1: %d crm:%d\n",
|
| 6978 |
isread ? "read" : "write", cpnum, opc1, crm); |
| 6979 |
} else {
|
| 6980 |
qemu_log_mask(LOG_UNIMP, "%s access to unsupported AArch32 "
|
| 6981 |
"system register cp:%d opc1:%d crn:%d crm:%d opc2:%d\n",
|
| 6982 |
isread ? "read" : "write", cpnum, opc1, crn, crm, opc2); |
| 6983 |
} |
| 6984 |
|
| 6985 |
return 1; |
| 6986 |
} |
| 6987 |
|
| 6988 |
|
| 6989 |
/* Store a 64-bit value to a register pair. Clobbers val. */
|
| 6990 |
static void gen_storeq_reg(DisasContext *s, int rlow, int rhigh, TCGv_i64 val) |
| 6991 |
{
|
| 6992 |
TCGv_i32 tmp; |
| 6993 |
tmp = tcg_temp_new_i32(); |
| 6994 |
tcg_gen_trunc_i64_i32(tmp, val); |
| 6995 |
store_reg(s, rlow, tmp); |
| 6996 |
tmp = tcg_temp_new_i32(); |
| 6997 |
tcg_gen_shri_i64(val, val, 32);
|
| 6998 |
tcg_gen_trunc_i64_i32(tmp, val); |
| 6999 |
store_reg(s, rhigh, tmp); |
| 7000 |
} |
| 7001 |
|
| 7002 |
/* load a 32-bit value from a register and perform a 64-bit accumulate. */
|
| 7003 |
static void gen_addq_lo(DisasContext *s, TCGv_i64 val, int rlow) |
| 7004 |
{
|
| 7005 |
TCGv_i64 tmp; |
| 7006 |
TCGv_i32 tmp2; |
| 7007 |
|
| 7008 |
/* Load value and extend to 64 bits. */
|
| 7009 |
tmp = tcg_temp_new_i64(); |
| 7010 |
tmp2 = load_reg(s, rlow); |
| 7011 |
tcg_gen_extu_i32_i64(tmp, tmp2); |
| 7012 |
tcg_temp_free_i32(tmp2); |
| 7013 |
tcg_gen_add_i64(val, val, tmp); |
| 7014 |
tcg_temp_free_i64(tmp); |
| 7015 |
} |
| 7016 |
|
| 7017 |
/* load and add a 64-bit value from a register pair. */
|
| 7018 |
static void gen_addq(DisasContext *s, TCGv_i64 val, int rlow, int rhigh) |
| 7019 |
{
|
| 7020 |
TCGv_i64 tmp; |
| 7021 |
TCGv_i32 tmpl; |
| 7022 |
TCGv_i32 tmph; |
| 7023 |
|
| 7024 |
/* Load 64-bit value rd:rn. */
|
| 7025 |
tmpl = load_reg(s, rlow); |
| 7026 |
tmph = load_reg(s, rhigh); |
| 7027 |
tmp = tcg_temp_new_i64(); |
| 7028 |
tcg_gen_concat_i32_i64(tmp, tmpl, tmph); |
| 7029 |
tcg_temp_free_i32(tmpl); |
| 7030 |
tcg_temp_free_i32(tmph); |
| 7031 |
tcg_gen_add_i64(val, val, tmp); |
| 7032 |
tcg_temp_free_i64(tmp); |
| 7033 |
} |
| 7034 |
|
| 7035 |
/* Set N and Z flags from hi|lo. */
|
| 7036 |
static void gen_logicq_cc(TCGv_i32 lo, TCGv_i32 hi) |
| 7037 |
{
|
| 7038 |
tcg_gen_mov_i32(cpu_NF, hi); |
| 7039 |
tcg_gen_or_i32(cpu_ZF, lo, hi); |
| 7040 |
} |
| 7041 |
|
| 7042 |
/* Load/Store exclusive instructions are implemented by remembering
|
| 7043 |
the value/address loaded, and seeing if these are the same
|
| 7044 |
when the store is performed. This should be sufficient to implement
|
| 7045 |
the architecturally mandated semantics, and avoids having to monitor
|
| 7046 |
regular stores.
|
| 7047 |
|
| 7048 |
In system emulation mode only one CPU will be running at once, so
|
| 7049 |
this sequence is effectively atomic. In user emulation mode we
|
| 7050 |
throw an exception and handle the atomic operation elsewhere. */
|
| 7051 |
static void gen_load_exclusive(DisasContext *s, int rt, int rt2, |
| 7052 |
TCGv_i32 addr, int size)
|
| 7053 |
{
|
| 7054 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 7055 |
|
| 7056 |
switch (size) {
|
| 7057 |
case 0: |
| 7058 |
gen_aa32_ld8u(tmp, addr, IS_USER(s)); |
| 7059 |
break;
|
| 7060 |
case 1: |
| 7061 |
gen_aa32_ld16u(tmp, addr, IS_USER(s)); |
| 7062 |
break;
|
| 7063 |
case 2: |
| 7064 |
case 3: |
| 7065 |
gen_aa32_ld32u(tmp, addr, IS_USER(s)); |
| 7066 |
break;
|
| 7067 |
default:
|
| 7068 |
abort(); |
| 7069 |
} |
| 7070 |
|
| 7071 |
if (size == 3) { |
| 7072 |
TCGv_i32 tmp2 = tcg_temp_new_i32(); |
| 7073 |
TCGv_i32 tmp3 = tcg_temp_new_i32(); |
| 7074 |
|
| 7075 |
tcg_gen_addi_i32(tmp2, addr, 4);
|
| 7076 |
gen_aa32_ld32u(tmp3, tmp2, IS_USER(s)); |
| 7077 |
tcg_temp_free_i32(tmp2); |
| 7078 |
tcg_gen_concat_i32_i64(cpu_exclusive_val, tmp, tmp3); |
| 7079 |
store_reg(s, rt2, tmp3); |
| 7080 |
} else {
|
| 7081 |
tcg_gen_extu_i32_i64(cpu_exclusive_val, tmp); |
| 7082 |
} |
| 7083 |
|
| 7084 |
store_reg(s, rt, tmp); |
| 7085 |
tcg_gen_extu_i32_i64(cpu_exclusive_addr, addr); |
| 7086 |
} |
| 7087 |
|
| 7088 |
static void gen_clrex(DisasContext *s) |
| 7089 |
{
|
| 7090 |
tcg_gen_movi_i64(cpu_exclusive_addr, -1);
|
| 7091 |
} |
| 7092 |
|
| 7093 |
#ifdef CONFIG_USER_ONLY
|
| 7094 |
static void gen_store_exclusive(DisasContext *s, int rd, int rt, int rt2, |
| 7095 |
TCGv_i32 addr, int size)
|
| 7096 |
{
|
| 7097 |
tcg_gen_extu_i32_i64(cpu_exclusive_test, addr); |
| 7098 |
tcg_gen_movi_i32(cpu_exclusive_info, |
| 7099 |
size | (rd << 4) | (rt << 8) | (rt2 << 12)); |
| 7100 |
gen_exception_insn(s, 4, EXCP_STREX);
|
| 7101 |
} |
| 7102 |
#else
|
| 7103 |
static void gen_store_exclusive(DisasContext *s, int rd, int rt, int rt2, |
| 7104 |
TCGv_i32 addr, int size)
|
| 7105 |
{
|
| 7106 |
TCGv_i32 tmp; |
| 7107 |
TCGv_i64 val64, extaddr; |
| 7108 |
int done_label;
|
| 7109 |
int fail_label;
|
| 7110 |
|
| 7111 |
/* if (env->exclusive_addr == addr && env->exclusive_val == [addr]) {
|
| 7112 |
[addr] = {Rt};
|
| 7113 |
{Rd} = 0;
|
| 7114 |
} else {
|
| 7115 |
{Rd} = 1;
|
| 7116 |
} */
|
| 7117 |
fail_label = gen_new_label(); |
| 7118 |
done_label = gen_new_label(); |
| 7119 |
extaddr = tcg_temp_new_i64(); |
| 7120 |
tcg_gen_extu_i32_i64(extaddr, addr); |
| 7121 |
tcg_gen_brcond_i64(TCG_COND_NE, extaddr, cpu_exclusive_addr, fail_label); |
| 7122 |
tcg_temp_free_i64(extaddr); |
| 7123 |
|
| 7124 |
tmp = tcg_temp_new_i32(); |
| 7125 |
switch (size) {
|
| 7126 |
case 0: |
| 7127 |
gen_aa32_ld8u(tmp, addr, IS_USER(s)); |
| 7128 |
break;
|
| 7129 |
case 1: |
| 7130 |
gen_aa32_ld16u(tmp, addr, IS_USER(s)); |
| 7131 |
break;
|
| 7132 |
case 2: |
| 7133 |
case 3: |
| 7134 |
gen_aa32_ld32u(tmp, addr, IS_USER(s)); |
| 7135 |
break;
|
| 7136 |
default:
|
| 7137 |
abort(); |
| 7138 |
} |
| 7139 |
|
| 7140 |
val64 = tcg_temp_new_i64(); |
| 7141 |
if (size == 3) { |
| 7142 |
TCGv_i32 tmp2 = tcg_temp_new_i32(); |
| 7143 |
TCGv_i32 tmp3 = tcg_temp_new_i32(); |
| 7144 |
tcg_gen_addi_i32(tmp2, addr, 4);
|
| 7145 |
gen_aa32_ld32u(tmp3, tmp2, IS_USER(s)); |
| 7146 |
tcg_temp_free_i32(tmp2); |
| 7147 |
tcg_gen_concat_i32_i64(val64, tmp, tmp3); |
| 7148 |
tcg_temp_free_i32(tmp3); |
| 7149 |
} else {
|
| 7150 |
tcg_gen_extu_i32_i64(val64, tmp); |
| 7151 |
} |
| 7152 |
tcg_temp_free_i32(tmp); |
| 7153 |
|
| 7154 |
tcg_gen_brcond_i64(TCG_COND_NE, val64, cpu_exclusive_val, fail_label); |
| 7155 |
tcg_temp_free_i64(val64); |
| 7156 |
|
| 7157 |
tmp = load_reg(s, rt); |
| 7158 |
switch (size) {
|
| 7159 |
case 0: |
| 7160 |
gen_aa32_st8(tmp, addr, IS_USER(s)); |
| 7161 |
break;
|
| 7162 |
case 1: |
| 7163 |
gen_aa32_st16(tmp, addr, IS_USER(s)); |
| 7164 |
break;
|
| 7165 |
case 2: |
| 7166 |
case 3: |
| 7167 |
gen_aa32_st32(tmp, addr, IS_USER(s)); |
| 7168 |
break;
|
| 7169 |
default:
|
| 7170 |
abort(); |
| 7171 |
} |
| 7172 |
tcg_temp_free_i32(tmp); |
| 7173 |
if (size == 3) { |
| 7174 |
tcg_gen_addi_i32(addr, addr, 4);
|
| 7175 |
tmp = load_reg(s, rt2); |
| 7176 |
gen_aa32_st32(tmp, addr, IS_USER(s)); |
| 7177 |
tcg_temp_free_i32(tmp); |
| 7178 |
} |
| 7179 |
tcg_gen_movi_i32(cpu_R[rd], 0);
|
| 7180 |
tcg_gen_br(done_label); |
| 7181 |
gen_set_label(fail_label); |
| 7182 |
tcg_gen_movi_i32(cpu_R[rd], 1);
|
| 7183 |
gen_set_label(done_label); |
| 7184 |
tcg_gen_movi_i64(cpu_exclusive_addr, -1);
|
| 7185 |
} |
| 7186 |
#endif
|
| 7187 |
|
| 7188 |
/* gen_srs:
|
| 7189 |
* @env: CPUARMState
|
| 7190 |
* @s: DisasContext
|
| 7191 |
* @mode: mode field from insn (which stack to store to)
|
| 7192 |
* @amode: addressing mode (DA/IA/DB/IB), encoded as per P,U bits in ARM insn
|
| 7193 |
* @writeback: true if writeback bit set
|
| 7194 |
*
|
| 7195 |
* Generate code for the SRS (Store Return State) insn.
|
| 7196 |
*/
|
| 7197 |
static void gen_srs(DisasContext *s, |
| 7198 |
uint32_t mode, uint32_t amode, bool writeback)
|
| 7199 |
{
|
| 7200 |
int32_t offset; |
| 7201 |
TCGv_i32 addr = tcg_temp_new_i32(); |
| 7202 |
TCGv_i32 tmp = tcg_const_i32(mode); |
| 7203 |
gen_helper_get_r13_banked(addr, cpu_env, tmp); |
| 7204 |
tcg_temp_free_i32(tmp); |
| 7205 |
switch (amode) {
|
| 7206 |
case 0: /* DA */ |
| 7207 |
offset = -4;
|
| 7208 |
break;
|
| 7209 |
case 1: /* IA */ |
| 7210 |
offset = 0;
|
| 7211 |
break;
|
| 7212 |
case 2: /* DB */ |
| 7213 |
offset = -8;
|
| 7214 |
break;
|
| 7215 |
case 3: /* IB */ |
| 7216 |
offset = 4;
|
| 7217 |
break;
|
| 7218 |
default:
|
| 7219 |
abort(); |
| 7220 |
} |
| 7221 |
tcg_gen_addi_i32(addr, addr, offset); |
| 7222 |
tmp = load_reg(s, 14);
|
| 7223 |
gen_aa32_st32(tmp, addr, 0);
|
| 7224 |
tcg_temp_free_i32(tmp); |
| 7225 |
tmp = load_cpu_field(spsr); |
| 7226 |
tcg_gen_addi_i32(addr, addr, 4);
|
| 7227 |
gen_aa32_st32(tmp, addr, 0);
|
| 7228 |
tcg_temp_free_i32(tmp); |
| 7229 |
if (writeback) {
|
| 7230 |
switch (amode) {
|
| 7231 |
case 0: |
| 7232 |
offset = -8;
|
| 7233 |
break;
|
| 7234 |
case 1: |
| 7235 |
offset = 4;
|
| 7236 |
break;
|
| 7237 |
case 2: |
| 7238 |
offset = -4;
|
| 7239 |
break;
|
| 7240 |
case 3: |
| 7241 |
offset = 0;
|
| 7242 |
break;
|
| 7243 |
default:
|
| 7244 |
abort(); |
| 7245 |
} |
| 7246 |
tcg_gen_addi_i32(addr, addr, offset); |
| 7247 |
tmp = tcg_const_i32(mode); |
| 7248 |
gen_helper_set_r13_banked(cpu_env, tmp, addr); |
| 7249 |
tcg_temp_free_i32(tmp); |
| 7250 |
} |
| 7251 |
tcg_temp_free_i32(addr); |
| 7252 |
} |
| 7253 |
|
| 7254 |
static void disas_arm_insn(CPUARMState * env, DisasContext *s) |
| 7255 |
{
|
| 7256 |
unsigned int cond, insn, val, op1, i, shift, rm, rs, rn, rd, sh; |
| 7257 |
TCGv_i32 tmp; |
| 7258 |
TCGv_i32 tmp2; |
| 7259 |
TCGv_i32 tmp3; |
| 7260 |
TCGv_i32 addr; |
| 7261 |
TCGv_i64 tmp64; |
| 7262 |
|
| 7263 |
insn = arm_ldl_code(env, s->pc, s->bswap_code); |
| 7264 |
s->pc += 4;
|
| 7265 |
|
| 7266 |
/* M variants do not implement ARM mode. */
|
| 7267 |
if (IS_M(env))
|
| 7268 |
goto illegal_op;
|
| 7269 |
cond = insn >> 28;
|
| 7270 |
if (cond == 0xf){ |
| 7271 |
/* In ARMv3 and v4 the NV condition is UNPREDICTABLE; we
|
| 7272 |
* choose to UNDEF. In ARMv5 and above the space is used
|
| 7273 |
* for miscellaneous unconditional instructions.
|
| 7274 |
*/
|
| 7275 |
ARCH(5);
|
| 7276 |
|
| 7277 |
/* Unconditional instructions. */
|
| 7278 |
if (((insn >> 25) & 7) == 1) { |
| 7279 |
/* NEON Data processing. */
|
| 7280 |
if (!arm_feature(env, ARM_FEATURE_NEON))
|
| 7281 |
goto illegal_op;
|
| 7282 |
|
| 7283 |
if (disas_neon_data_insn(env, s, insn))
|
| 7284 |
goto illegal_op;
|
| 7285 |
return;
|
| 7286 |
} |
| 7287 |
if ((insn & 0x0f100000) == 0x04000000) { |
| 7288 |
/* NEON load/store. */
|
| 7289 |
if (!arm_feature(env, ARM_FEATURE_NEON))
|
| 7290 |
goto illegal_op;
|
| 7291 |
|
| 7292 |
if (disas_neon_ls_insn(env, s, insn))
|
| 7293 |
goto illegal_op;
|
| 7294 |
return;
|
| 7295 |
} |
| 7296 |
if ((insn & 0x0f000e10) == 0x0e000a00) { |
| 7297 |
/* VFP. */
|
| 7298 |
if (disas_vfp_insn(env, s, insn)) {
|
| 7299 |
goto illegal_op;
|
| 7300 |
} |
| 7301 |
return;
|
| 7302 |
} |
| 7303 |
if (((insn & 0x0f30f000) == 0x0510f000) || |
| 7304 |
((insn & 0x0f30f010) == 0x0710f000)) { |
| 7305 |
if ((insn & (1 << 22)) == 0) { |
| 7306 |
/* PLDW; v7MP */
|
| 7307 |
if (!arm_feature(env, ARM_FEATURE_V7MP)) {
|
| 7308 |
goto illegal_op;
|
| 7309 |
} |
| 7310 |
} |
| 7311 |
/* Otherwise PLD; v5TE+ */
|
| 7312 |
ARCH(5TE);
|
| 7313 |
return;
|
| 7314 |
} |
| 7315 |
if (((insn & 0x0f70f000) == 0x0450f000) || |
| 7316 |
((insn & 0x0f70f010) == 0x0650f000)) { |
| 7317 |
ARCH(7);
|
| 7318 |
return; /* PLI; V7 */ |
| 7319 |
} |
| 7320 |
if (((insn & 0x0f700000) == 0x04100000) || |
| 7321 |
((insn & 0x0f700010) == 0x06100000)) { |
| 7322 |
if (!arm_feature(env, ARM_FEATURE_V7MP)) {
|
| 7323 |
goto illegal_op;
|
| 7324 |
} |
| 7325 |
return; /* v7MP: Unallocated memory hint: must NOP */ |
| 7326 |
} |
| 7327 |
|
| 7328 |
if ((insn & 0x0ffffdff) == 0x01010000) { |
| 7329 |
ARCH(6);
|
| 7330 |
/* setend */
|
| 7331 |
if (((insn >> 9) & 1) != s->bswap_code) { |
| 7332 |
/* Dynamic endianness switching not implemented. */
|
| 7333 |
qemu_log_mask(LOG_UNIMP, "arm: unimplemented setend\n");
|
| 7334 |
goto illegal_op;
|
| 7335 |
} |
| 7336 |
return;
|
| 7337 |
} else if ((insn & 0x0fffff00) == 0x057ff000) { |
| 7338 |
switch ((insn >> 4) & 0xf) { |
| 7339 |
case 1: /* clrex */ |
| 7340 |
ARCH(6K);
|
| 7341 |
gen_clrex(s); |
| 7342 |
return;
|
| 7343 |
case 4: /* dsb */ |
| 7344 |
case 5: /* dmb */ |
| 7345 |
case 6: /* isb */ |
| 7346 |
ARCH(7);
|
| 7347 |
/* We don't emulate caches so these are a no-op. */
|
| 7348 |
return;
|
| 7349 |
default:
|
| 7350 |
goto illegal_op;
|
| 7351 |
} |
| 7352 |
} else if ((insn & 0x0e5fffe0) == 0x084d0500) { |
| 7353 |
/* srs */
|
| 7354 |
if (IS_USER(s)) {
|
| 7355 |
goto illegal_op;
|
| 7356 |
} |
| 7357 |
ARCH(6);
|
| 7358 |
gen_srs(s, (insn & 0x1f), (insn >> 23) & 3, insn & (1 << 21)); |
| 7359 |
return;
|
| 7360 |
} else if ((insn & 0x0e50ffe0) == 0x08100a00) { |
| 7361 |
/* rfe */
|
| 7362 |
int32_t offset; |
| 7363 |
if (IS_USER(s))
|
| 7364 |
goto illegal_op;
|
| 7365 |
ARCH(6);
|
| 7366 |
rn = (insn >> 16) & 0xf; |
| 7367 |
addr = load_reg(s, rn); |
| 7368 |
i = (insn >> 23) & 3; |
| 7369 |
switch (i) {
|
| 7370 |
case 0: offset = -4; break; /* DA */ |
| 7371 |
case 1: offset = 0; break; /* IA */ |
| 7372 |
case 2: offset = -8; break; /* DB */ |
| 7373 |
case 3: offset = 4; break; /* IB */ |
| 7374 |
default: abort();
|
| 7375 |
} |
| 7376 |
if (offset)
|
| 7377 |
tcg_gen_addi_i32(addr, addr, offset); |
| 7378 |
/* Load PC into tmp and CPSR into tmp2. */
|
| 7379 |
tmp = tcg_temp_new_i32(); |
| 7380 |
gen_aa32_ld32u(tmp, addr, 0);
|
| 7381 |
tcg_gen_addi_i32(addr, addr, 4);
|
| 7382 |
tmp2 = tcg_temp_new_i32(); |
| 7383 |
gen_aa32_ld32u(tmp2, addr, 0);
|
| 7384 |
if (insn & (1 << 21)) { |
| 7385 |
/* Base writeback. */
|
| 7386 |
switch (i) {
|
| 7387 |
case 0: offset = -8; break; |
| 7388 |
case 1: offset = 4; break; |
| 7389 |
case 2: offset = -4; break; |
| 7390 |
case 3: offset = 0; break; |
| 7391 |
default: abort();
|
| 7392 |
} |
| 7393 |
if (offset)
|
| 7394 |
tcg_gen_addi_i32(addr, addr, offset); |
| 7395 |
store_reg(s, rn, addr); |
| 7396 |
} else {
|
| 7397 |
tcg_temp_free_i32(addr); |
| 7398 |
} |
| 7399 |
gen_rfe(s, tmp, tmp2); |
| 7400 |
return;
|
| 7401 |
} else if ((insn & 0x0e000000) == 0x0a000000) { |
| 7402 |
/* branch link and change to thumb (blx <offset>) */
|
| 7403 |
int32_t offset; |
| 7404 |
|
| 7405 |
val = (uint32_t)s->pc; |
| 7406 |
tmp = tcg_temp_new_i32(); |
| 7407 |
tcg_gen_movi_i32(tmp, val); |
| 7408 |
store_reg(s, 14, tmp);
|
| 7409 |
/* Sign-extend the 24-bit offset */
|
| 7410 |
offset = (((int32_t)insn) << 8) >> 8; |
| 7411 |
/* offset * 4 + bit24 * 2 + (thumb bit) */
|
| 7412 |
val += (offset << 2) | ((insn >> 23) & 2) | 1; |
| 7413 |
/* pipeline offset */
|
| 7414 |
val += 4;
|
| 7415 |
/* protected by ARCH(5); above, near the start of uncond block */
|
| 7416 |
gen_bx_im(s, val); |
| 7417 |
return;
|
| 7418 |
} else if ((insn & 0x0e000f00) == 0x0c000100) { |
| 7419 |
if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
|
| 7420 |
/* iWMMXt register transfer. */
|
| 7421 |
if (env->cp15.c15_cpar & (1 << 1)) |
| 7422 |
if (!disas_iwmmxt_insn(env, s, insn))
|
| 7423 |
return;
|
| 7424 |
} |
| 7425 |
} else if ((insn & 0x0fe00000) == 0x0c400000) { |
| 7426 |
/* Coprocessor double register transfer. */
|
| 7427 |
ARCH(5TE);
|
| 7428 |
} else if ((insn & 0x0f000010) == 0x0e000010) { |
| 7429 |
/* Additional coprocessor register transfer. */
|
| 7430 |
} else if ((insn & 0x0ff10020) == 0x01000000) { |
| 7431 |
uint32_t mask; |
| 7432 |
uint32_t val; |
| 7433 |
/* cps (privileged) */
|
| 7434 |
if (IS_USER(s))
|
| 7435 |
return;
|
| 7436 |
mask = val = 0;
|
| 7437 |
if (insn & (1 << 19)) { |
| 7438 |
if (insn & (1 << 8)) |
| 7439 |
mask |= CPSR_A; |
| 7440 |
if (insn & (1 << 7)) |
| 7441 |
mask |= CPSR_I; |
| 7442 |
if (insn & (1 << 6)) |
| 7443 |
mask |= CPSR_F; |
| 7444 |
if (insn & (1 << 18)) |
| 7445 |
val |= mask; |
| 7446 |
} |
| 7447 |
if (insn & (1 << 17)) { |
| 7448 |
mask |= CPSR_M; |
| 7449 |
val |= (insn & 0x1f);
|
| 7450 |
} |
| 7451 |
if (mask) {
|
| 7452 |
gen_set_psr_im(s, mask, 0, val);
|
| 7453 |
} |
| 7454 |
return;
|
| 7455 |
} |
| 7456 |
goto illegal_op;
|
| 7457 |
} |
| 7458 |
if (cond != 0xe) { |
| 7459 |
/* if not always execute, we generate a conditional jump to
|
| 7460 |
next instruction */
|
| 7461 |
s->condlabel = gen_new_label(); |
| 7462 |
arm_gen_test_cc(cond ^ 1, s->condlabel);
|
| 7463 |
s->condjmp = 1;
|
| 7464 |
} |
| 7465 |
if ((insn & 0x0f900000) == 0x03000000) { |
| 7466 |
if ((insn & (1 << 21)) == 0) { |
| 7467 |
ARCH(6T2);
|
| 7468 |
rd = (insn >> 12) & 0xf; |
| 7469 |
val = ((insn >> 4) & 0xf000) | (insn & 0xfff); |
| 7470 |
if ((insn & (1 << 22)) == 0) { |
| 7471 |
/* MOVW */
|
| 7472 |
tmp = tcg_temp_new_i32(); |
| 7473 |
tcg_gen_movi_i32(tmp, val); |
| 7474 |
} else {
|
| 7475 |
/* MOVT */
|
| 7476 |
tmp = load_reg(s, rd); |
| 7477 |
tcg_gen_ext16u_i32(tmp, tmp); |
| 7478 |
tcg_gen_ori_i32(tmp, tmp, val << 16);
|
| 7479 |
} |
| 7480 |
store_reg(s, rd, tmp); |
| 7481 |
} else {
|
| 7482 |
if (((insn >> 12) & 0xf) != 0xf) |
| 7483 |
goto illegal_op;
|
| 7484 |
if (((insn >> 16) & 0xf) == 0) { |
| 7485 |
gen_nop_hint(s, insn & 0xff);
|
| 7486 |
} else {
|
| 7487 |
/* CPSR = immediate */
|
| 7488 |
val = insn & 0xff;
|
| 7489 |
shift = ((insn >> 8) & 0xf) * 2; |
| 7490 |
if (shift)
|
| 7491 |
val = (val >> shift) | (val << (32 - shift));
|
| 7492 |
i = ((insn & (1 << 22)) != 0); |
| 7493 |
if (gen_set_psr_im(s, msr_mask(env, s, (insn >> 16) & 0xf, i), i, val)) |
| 7494 |
goto illegal_op;
|
| 7495 |
} |
| 7496 |
} |
| 7497 |
} else if ((insn & 0x0f900000) == 0x01000000 |
| 7498 |
&& (insn & 0x00000090) != 0x00000090) { |
| 7499 |
/* miscellaneous instructions */
|
| 7500 |
op1 = (insn >> 21) & 3; |
| 7501 |
sh = (insn >> 4) & 0xf; |
| 7502 |
rm = insn & 0xf;
|
| 7503 |
switch (sh) {
|
| 7504 |
case 0x0: /* move program status register */ |
| 7505 |
if (op1 & 1) { |
| 7506 |
/* PSR = reg */
|
| 7507 |
tmp = load_reg(s, rm); |
| 7508 |
i = ((op1 & 2) != 0); |
| 7509 |
if (gen_set_psr(s, msr_mask(env, s, (insn >> 16) & 0xf, i), i, tmp)) |
| 7510 |
goto illegal_op;
|
| 7511 |
} else {
|
| 7512 |
/* reg = PSR */
|
| 7513 |
rd = (insn >> 12) & 0xf; |
| 7514 |
if (op1 & 2) { |
| 7515 |
if (IS_USER(s))
|
| 7516 |
goto illegal_op;
|
| 7517 |
tmp = load_cpu_field(spsr); |
| 7518 |
} else {
|
| 7519 |
tmp = tcg_temp_new_i32(); |
| 7520 |
gen_helper_cpsr_read(tmp, cpu_env); |
| 7521 |
} |
| 7522 |
store_reg(s, rd, tmp); |
| 7523 |
} |
| 7524 |
break;
|
| 7525 |
case 0x1: |
| 7526 |
if (op1 == 1) { |
| 7527 |
/* branch/exchange thumb (bx). */
|
| 7528 |
ARCH(4T);
|
| 7529 |
tmp = load_reg(s, rm); |
| 7530 |
gen_bx(s, tmp); |
| 7531 |
} else if (op1 == 3) { |
| 7532 |
/* clz */
|
| 7533 |
ARCH(5);
|
| 7534 |
rd = (insn >> 12) & 0xf; |
| 7535 |
tmp = load_reg(s, rm); |
| 7536 |
gen_helper_clz(tmp, tmp); |
| 7537 |
store_reg(s, rd, tmp); |
| 7538 |
} else {
|
| 7539 |
goto illegal_op;
|
| 7540 |
} |
| 7541 |
break;
|
| 7542 |
case 0x2: |
| 7543 |
if (op1 == 1) { |
| 7544 |
ARCH(5J); /* bxj */ |
| 7545 |
/* Trivial implementation equivalent to bx. */
|
| 7546 |
tmp = load_reg(s, rm); |
| 7547 |
gen_bx(s, tmp); |
| 7548 |
} else {
|
| 7549 |
goto illegal_op;
|
| 7550 |
} |
| 7551 |
break;
|
| 7552 |
case 0x3: |
| 7553 |
if (op1 != 1) |
| 7554 |
goto illegal_op;
|
| 7555 |
|
| 7556 |
ARCH(5);
|
| 7557 |
/* branch link/exchange thumb (blx) */
|
| 7558 |
tmp = load_reg(s, rm); |
| 7559 |
tmp2 = tcg_temp_new_i32(); |
| 7560 |
tcg_gen_movi_i32(tmp2, s->pc); |
| 7561 |
store_reg(s, 14, tmp2);
|
| 7562 |
gen_bx(s, tmp); |
| 7563 |
break;
|
| 7564 |
case 0x5: /* saturating add/subtract */ |
| 7565 |
ARCH(5TE);
|
| 7566 |
rd = (insn >> 12) & 0xf; |
| 7567 |
rn = (insn >> 16) & 0xf; |
| 7568 |
tmp = load_reg(s, rm); |
| 7569 |
tmp2 = load_reg(s, rn); |
| 7570 |
if (op1 & 2) |
| 7571 |
gen_helper_double_saturate(tmp2, cpu_env, tmp2); |
| 7572 |
if (op1 & 1) |
| 7573 |
gen_helper_sub_saturate(tmp, cpu_env, tmp, tmp2); |
| 7574 |
else
|
| 7575 |
gen_helper_add_saturate(tmp, cpu_env, tmp, tmp2); |
| 7576 |
tcg_temp_free_i32(tmp2); |
| 7577 |
store_reg(s, rd, tmp); |
| 7578 |
break;
|
| 7579 |
case 7: |
| 7580 |
/* SMC instruction (op1 == 3)
|
| 7581 |
and undefined instructions (op1 == 0 || op1 == 2)
|
| 7582 |
will trap */
|
| 7583 |
if (op1 != 1) { |
| 7584 |
goto illegal_op;
|
| 7585 |
} |
| 7586 |
/* bkpt */
|
| 7587 |
ARCH(5);
|
| 7588 |
gen_exception_insn(s, 4, EXCP_BKPT);
|
| 7589 |
break;
|
| 7590 |
case 0x8: /* signed multiply */ |
| 7591 |
case 0xa: |
| 7592 |
case 0xc: |
| 7593 |
case 0xe: |
| 7594 |
ARCH(5TE);
|
| 7595 |
rs = (insn >> 8) & 0xf; |
| 7596 |
rn = (insn >> 12) & 0xf; |
| 7597 |
rd = (insn >> 16) & 0xf; |
| 7598 |
if (op1 == 1) { |
| 7599 |
/* (32 * 16) >> 16 */
|
| 7600 |
tmp = load_reg(s, rm); |
| 7601 |
tmp2 = load_reg(s, rs); |
| 7602 |
if (sh & 4) |
| 7603 |
tcg_gen_sari_i32(tmp2, tmp2, 16);
|
| 7604 |
else
|
| 7605 |
gen_sxth(tmp2); |
| 7606 |
tmp64 = gen_muls_i64_i32(tmp, tmp2); |
| 7607 |
tcg_gen_shri_i64(tmp64, tmp64, 16);
|
| 7608 |
tmp = tcg_temp_new_i32(); |
| 7609 |
tcg_gen_trunc_i64_i32(tmp, tmp64); |
| 7610 |
tcg_temp_free_i64(tmp64); |
| 7611 |
if ((sh & 2) == 0) { |
| 7612 |
tmp2 = load_reg(s, rn); |
| 7613 |
gen_helper_add_setq(tmp, cpu_env, tmp, tmp2); |
| 7614 |
tcg_temp_free_i32(tmp2); |
| 7615 |
} |
| 7616 |
store_reg(s, rd, tmp); |
| 7617 |
} else {
|
| 7618 |
/* 16 * 16 */
|
| 7619 |
tmp = load_reg(s, rm); |
| 7620 |
tmp2 = load_reg(s, rs); |
| 7621 |
gen_mulxy(tmp, tmp2, sh & 2, sh & 4); |
| 7622 |
tcg_temp_free_i32(tmp2); |
| 7623 |
if (op1 == 2) { |
| 7624 |
tmp64 = tcg_temp_new_i64(); |
| 7625 |
tcg_gen_ext_i32_i64(tmp64, tmp); |
| 7626 |
tcg_temp_free_i32(tmp); |
| 7627 |
gen_addq(s, tmp64, rn, rd); |
| 7628 |
gen_storeq_reg(s, rn, rd, tmp64); |
| 7629 |
tcg_temp_free_i64(tmp64); |
| 7630 |
} else {
|
| 7631 |
if (op1 == 0) { |
| 7632 |
tmp2 = load_reg(s, rn); |
| 7633 |
gen_helper_add_setq(tmp, cpu_env, tmp, tmp2); |
| 7634 |
tcg_temp_free_i32(tmp2); |
| 7635 |
} |
| 7636 |
store_reg(s, rd, tmp); |
| 7637 |
} |
| 7638 |
} |
| 7639 |
break;
|
| 7640 |
default:
|
| 7641 |
goto illegal_op;
|
| 7642 |
} |
| 7643 |
} else if (((insn & 0x0e000000) == 0 && |
| 7644 |
(insn & 0x00000090) != 0x90) || |
| 7645 |
((insn & 0x0e000000) == (1 << 25))) { |
| 7646 |
int set_cc, logic_cc, shiftop;
|
| 7647 |
|
| 7648 |
op1 = (insn >> 21) & 0xf; |
| 7649 |
set_cc = (insn >> 20) & 1; |
| 7650 |
logic_cc = table_logic_cc[op1] & set_cc; |
| 7651 |
|
| 7652 |
/* data processing instruction */
|
| 7653 |
if (insn & (1 << 25)) { |
| 7654 |
/* immediate operand */
|
| 7655 |
val = insn & 0xff;
|
| 7656 |
shift = ((insn >> 8) & 0xf) * 2; |
| 7657 |
if (shift) {
|
| 7658 |
val = (val >> shift) | (val << (32 - shift));
|
| 7659 |
} |
| 7660 |
tmp2 = tcg_temp_new_i32(); |
| 7661 |
tcg_gen_movi_i32(tmp2, val); |
| 7662 |
if (logic_cc && shift) {
|
| 7663 |
gen_set_CF_bit31(tmp2); |
| 7664 |
} |
| 7665 |
} else {
|
| 7666 |
/* register */
|
| 7667 |
rm = (insn) & 0xf;
|
| 7668 |
tmp2 = load_reg(s, rm); |
| 7669 |
shiftop = (insn >> 5) & 3; |
| 7670 |
if (!(insn & (1 << 4))) { |
| 7671 |
shift = (insn >> 7) & 0x1f; |
| 7672 |
gen_arm_shift_im(tmp2, shiftop, shift, logic_cc); |
| 7673 |
} else {
|
| 7674 |
rs = (insn >> 8) & 0xf; |
| 7675 |
tmp = load_reg(s, rs); |
| 7676 |
gen_arm_shift_reg(tmp2, shiftop, tmp, logic_cc); |
| 7677 |
} |
| 7678 |
} |
| 7679 |
if (op1 != 0x0f && op1 != 0x0d) { |
| 7680 |
rn = (insn >> 16) & 0xf; |
| 7681 |
tmp = load_reg(s, rn); |
| 7682 |
} else {
|
| 7683 |
TCGV_UNUSED_I32(tmp); |
| 7684 |
} |
| 7685 |
rd = (insn >> 12) & 0xf; |
| 7686 |
switch(op1) {
|
| 7687 |
case 0x00: |
| 7688 |
tcg_gen_and_i32(tmp, tmp, tmp2); |
| 7689 |
if (logic_cc) {
|
| 7690 |
gen_logic_CC(tmp); |
| 7691 |
} |
| 7692 |
store_reg_bx(env, s, rd, tmp); |
| 7693 |
break;
|
| 7694 |
case 0x01: |
| 7695 |
tcg_gen_xor_i32(tmp, tmp, tmp2); |
| 7696 |
if (logic_cc) {
|
| 7697 |
gen_logic_CC(tmp); |
| 7698 |
} |
| 7699 |
store_reg_bx(env, s, rd, tmp); |
| 7700 |
break;
|
| 7701 |
case 0x02: |
| 7702 |
if (set_cc && rd == 15) { |
| 7703 |
/* SUBS r15, ... is used for exception return. */
|
| 7704 |
if (IS_USER(s)) {
|
| 7705 |
goto illegal_op;
|
| 7706 |
} |
| 7707 |
gen_sub_CC(tmp, tmp, tmp2); |
| 7708 |
gen_exception_return(s, tmp); |
| 7709 |
} else {
|
| 7710 |
if (set_cc) {
|
| 7711 |
gen_sub_CC(tmp, tmp, tmp2); |
| 7712 |
} else {
|
| 7713 |
tcg_gen_sub_i32(tmp, tmp, tmp2); |
| 7714 |
} |
| 7715 |
store_reg_bx(env, s, rd, tmp); |
| 7716 |
} |
| 7717 |
break;
|
| 7718 |
case 0x03: |
| 7719 |
if (set_cc) {
|
| 7720 |
gen_sub_CC(tmp, tmp2, tmp); |
| 7721 |
} else {
|
| 7722 |
tcg_gen_sub_i32(tmp, tmp2, tmp); |
| 7723 |
} |
| 7724 |
store_reg_bx(env, s, rd, tmp); |
| 7725 |
break;
|
| 7726 |
case 0x04: |
| 7727 |
if (set_cc) {
|
| 7728 |
gen_add_CC(tmp, tmp, tmp2); |
| 7729 |
} else {
|
| 7730 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
| 7731 |
} |
| 7732 |
store_reg_bx(env, s, rd, tmp); |
| 7733 |
break;
|
| 7734 |
case 0x05: |
| 7735 |
if (set_cc) {
|
| 7736 |
gen_adc_CC(tmp, tmp, tmp2); |
| 7737 |
} else {
|
| 7738 |
gen_add_carry(tmp, tmp, tmp2); |
| 7739 |
} |
| 7740 |
store_reg_bx(env, s, rd, tmp); |
| 7741 |
break;
|
| 7742 |
case 0x06: |
| 7743 |
if (set_cc) {
|
| 7744 |
gen_sbc_CC(tmp, tmp, tmp2); |
| 7745 |
} else {
|
| 7746 |
gen_sub_carry(tmp, tmp, tmp2); |
| 7747 |
} |
| 7748 |
store_reg_bx(env, s, rd, tmp); |
| 7749 |
break;
|
| 7750 |
case 0x07: |
| 7751 |
if (set_cc) {
|
| 7752 |
gen_sbc_CC(tmp, tmp2, tmp); |
| 7753 |
} else {
|
| 7754 |
gen_sub_carry(tmp, tmp2, tmp); |
| 7755 |
} |
| 7756 |
store_reg_bx(env, s, rd, tmp); |
| 7757 |
break;
|
| 7758 |
case 0x08: |
| 7759 |
if (set_cc) {
|
| 7760 |
tcg_gen_and_i32(tmp, tmp, tmp2); |
| 7761 |
gen_logic_CC(tmp); |
| 7762 |
} |
| 7763 |
tcg_temp_free_i32(tmp); |
| 7764 |
break;
|
| 7765 |
case 0x09: |
| 7766 |
if (set_cc) {
|
| 7767 |
tcg_gen_xor_i32(tmp, tmp, tmp2); |
| 7768 |
gen_logic_CC(tmp); |
| 7769 |
} |
| 7770 |
tcg_temp_free_i32(tmp); |
| 7771 |
break;
|
| 7772 |
case 0x0a: |
| 7773 |
if (set_cc) {
|
| 7774 |
gen_sub_CC(tmp, tmp, tmp2); |
| 7775 |
} |
| 7776 |
tcg_temp_free_i32(tmp); |
| 7777 |
break;
|
| 7778 |
case 0x0b: |
| 7779 |
if (set_cc) {
|
| 7780 |
gen_add_CC(tmp, tmp, tmp2); |
| 7781 |
} |
| 7782 |
tcg_temp_free_i32(tmp); |
| 7783 |
break;
|
| 7784 |
case 0x0c: |
| 7785 |
tcg_gen_or_i32(tmp, tmp, tmp2); |
| 7786 |
if (logic_cc) {
|
| 7787 |
gen_logic_CC(tmp); |
| 7788 |
} |
| 7789 |
store_reg_bx(env, s, rd, tmp); |
| 7790 |
break;
|
| 7791 |
case 0x0d: |
| 7792 |
if (logic_cc && rd == 15) { |
| 7793 |
/* MOVS r15, ... is used for exception return. */
|
| 7794 |
if (IS_USER(s)) {
|
| 7795 |
goto illegal_op;
|
| 7796 |
} |
| 7797 |
gen_exception_return(s, tmp2); |
| 7798 |
} else {
|
| 7799 |
if (logic_cc) {
|
| 7800 |
gen_logic_CC(tmp2); |
| 7801 |
} |
| 7802 |
store_reg_bx(env, s, rd, tmp2); |
| 7803 |
} |
| 7804 |
break;
|
| 7805 |
case 0x0e: |
| 7806 |
tcg_gen_andc_i32(tmp, tmp, tmp2); |
| 7807 |
if (logic_cc) {
|
| 7808 |
gen_logic_CC(tmp); |
| 7809 |
} |
| 7810 |
store_reg_bx(env, s, rd, tmp); |
| 7811 |
break;
|
| 7812 |
default:
|
| 7813 |
case 0x0f: |
| 7814 |
tcg_gen_not_i32(tmp2, tmp2); |
| 7815 |
if (logic_cc) {
|
| 7816 |
gen_logic_CC(tmp2); |
| 7817 |
} |
| 7818 |
store_reg_bx(env, s, rd, tmp2); |
| 7819 |
break;
|
| 7820 |
} |
| 7821 |
if (op1 != 0x0f && op1 != 0x0d) { |
| 7822 |
tcg_temp_free_i32(tmp2); |
| 7823 |
} |
| 7824 |
} else {
|
| 7825 |
/* other instructions */
|
| 7826 |
op1 = (insn >> 24) & 0xf; |
| 7827 |
switch(op1) {
|
| 7828 |
case 0x0: |
| 7829 |
case 0x1: |
| 7830 |
/* multiplies, extra load/stores */
|
| 7831 |
sh = (insn >> 5) & 3; |
| 7832 |
if (sh == 0) { |
| 7833 |
if (op1 == 0x0) { |
| 7834 |
rd = (insn >> 16) & 0xf; |
| 7835 |
rn = (insn >> 12) & 0xf; |
| 7836 |
rs = (insn >> 8) & 0xf; |
| 7837 |
rm = (insn) & 0xf;
|
| 7838 |
op1 = (insn >> 20) & 0xf; |
| 7839 |
switch (op1) {
|
| 7840 |
case 0: case 1: case 2: case 3: case 6: |
| 7841 |
/* 32 bit mul */
|
| 7842 |
tmp = load_reg(s, rs); |
| 7843 |
tmp2 = load_reg(s, rm); |
| 7844 |
tcg_gen_mul_i32(tmp, tmp, tmp2); |
| 7845 |
tcg_temp_free_i32(tmp2); |
| 7846 |
if (insn & (1 << 22)) { |
| 7847 |
/* Subtract (mls) */
|
| 7848 |
ARCH(6T2);
|
| 7849 |
tmp2 = load_reg(s, rn); |
| 7850 |
tcg_gen_sub_i32(tmp, tmp2, tmp); |
| 7851 |
tcg_temp_free_i32(tmp2); |
| 7852 |
} else if (insn & (1 << 21)) { |
| 7853 |
/* Add */
|
| 7854 |
tmp2 = load_reg(s, rn); |
| 7855 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
| 7856 |
tcg_temp_free_i32(tmp2); |
| 7857 |
} |
| 7858 |
if (insn & (1 << 20)) |
| 7859 |
gen_logic_CC(tmp); |
| 7860 |
store_reg(s, rd, tmp); |
| 7861 |
break;
|
| 7862 |
case 4: |
| 7863 |
/* 64 bit mul double accumulate (UMAAL) */
|
| 7864 |
ARCH(6);
|
| 7865 |
tmp = load_reg(s, rs); |
| 7866 |
tmp2 = load_reg(s, rm); |
| 7867 |
tmp64 = gen_mulu_i64_i32(tmp, tmp2); |
| 7868 |
gen_addq_lo(s, tmp64, rn); |
| 7869 |
gen_addq_lo(s, tmp64, rd); |
| 7870 |
gen_storeq_reg(s, rn, rd, tmp64); |
| 7871 |
tcg_temp_free_i64(tmp64); |
| 7872 |
break;
|
| 7873 |
case 8: case 9: case 10: case 11: |
| 7874 |
case 12: case 13: case 14: case 15: |
| 7875 |
/* 64 bit mul: UMULL, UMLAL, SMULL, SMLAL. */
|
| 7876 |
tmp = load_reg(s, rs); |
| 7877 |
tmp2 = load_reg(s, rm); |
| 7878 |
if (insn & (1 << 22)) { |
| 7879 |
tcg_gen_muls2_i32(tmp, tmp2, tmp, tmp2); |
| 7880 |
} else {
|
| 7881 |
tcg_gen_mulu2_i32(tmp, tmp2, tmp, tmp2); |
| 7882 |
} |
| 7883 |
if (insn & (1 << 21)) { /* mult accumulate */ |
| 7884 |
TCGv_i32 al = load_reg(s, rn); |
| 7885 |
TCGv_i32 ah = load_reg(s, rd); |
| 7886 |
tcg_gen_add2_i32(tmp, tmp2, tmp, tmp2, al, ah); |
| 7887 |
tcg_temp_free_i32(al); |
| 7888 |
tcg_temp_free_i32(ah); |
| 7889 |
} |
| 7890 |
if (insn & (1 << 20)) { |
| 7891 |
gen_logicq_cc(tmp, tmp2); |
| 7892 |
} |
| 7893 |
store_reg(s, rn, tmp); |
| 7894 |
store_reg(s, rd, tmp2); |
| 7895 |
break;
|
| 7896 |
default:
|
| 7897 |
goto illegal_op;
|
| 7898 |
} |
| 7899 |
} else {
|
| 7900 |
rn = (insn >> 16) & 0xf; |
| 7901 |
rd = (insn >> 12) & 0xf; |
| 7902 |
if (insn & (1 << 23)) { |
| 7903 |
/* load/store exclusive */
|
| 7904 |
int op2 = (insn >> 8) & 3; |
| 7905 |
op1 = (insn >> 21) & 0x3; |
| 7906 |
|
| 7907 |
switch (op2) {
|
| 7908 |
case 0: /* lda/stl */ |
| 7909 |
if (op1 == 1) { |
| 7910 |
goto illegal_op;
|
| 7911 |
} |
| 7912 |
ARCH(8);
|
| 7913 |
break;
|
| 7914 |
case 1: /* reserved */ |
| 7915 |
goto illegal_op;
|
| 7916 |
case 2: /* ldaex/stlex */ |
| 7917 |
ARCH(8);
|
| 7918 |
break;
|
| 7919 |
case 3: /* ldrex/strex */ |
| 7920 |
if (op1) {
|
| 7921 |
ARCH(6K);
|
| 7922 |
} else {
|
| 7923 |
ARCH(6);
|
| 7924 |
} |
| 7925 |
break;
|
| 7926 |
} |
| 7927 |
|
| 7928 |
addr = tcg_temp_local_new_i32(); |
| 7929 |
load_reg_var(s, addr, rn); |
| 7930 |
|
| 7931 |
/* Since the emulation does not have barriers,
|
| 7932 |
the acquire/release semantics need no special
|
| 7933 |
handling */
|
| 7934 |
if (op2 == 0) { |
| 7935 |
if (insn & (1 << 20)) { |
| 7936 |
tmp = tcg_temp_new_i32(); |
| 7937 |
switch (op1) {
|
| 7938 |
case 0: /* lda */ |
| 7939 |
gen_aa32_ld32u(tmp, addr, IS_USER(s)); |
| 7940 |
break;
|
| 7941 |
case 2: /* ldab */ |
| 7942 |
gen_aa32_ld8u(tmp, addr, IS_USER(s)); |
| 7943 |
break;
|
| 7944 |
case 3: /* ldah */ |
| 7945 |
gen_aa32_ld16u(tmp, addr, IS_USER(s)); |
| 7946 |
break;
|
| 7947 |
default:
|
| 7948 |
abort(); |
| 7949 |
} |
| 7950 |
store_reg(s, rd, tmp); |
| 7951 |
} else {
|
| 7952 |
rm = insn & 0xf;
|
| 7953 |
tmp = load_reg(s, rm); |
| 7954 |
switch (op1) {
|
| 7955 |
case 0: /* stl */ |
| 7956 |
gen_aa32_st32(tmp, addr, IS_USER(s)); |
| 7957 |
break;
|
| 7958 |
case 2: /* stlb */ |
| 7959 |
gen_aa32_st8(tmp, addr, IS_USER(s)); |
| 7960 |
break;
|
| 7961 |
case 3: /* stlh */ |
| 7962 |
gen_aa32_st16(tmp, addr, IS_USER(s)); |
| 7963 |
break;
|
| 7964 |
default:
|
| 7965 |
abort(); |
| 7966 |
} |
| 7967 |
tcg_temp_free_i32(tmp); |
| 7968 |
} |
| 7969 |
} else if (insn & (1 << 20)) { |
| 7970 |
switch (op1) {
|
| 7971 |
case 0: /* ldrex */ |
| 7972 |
gen_load_exclusive(s, rd, 15, addr, 2); |
| 7973 |
break;
|
| 7974 |
case 1: /* ldrexd */ |
| 7975 |
gen_load_exclusive(s, rd, rd + 1, addr, 3); |
| 7976 |
break;
|
| 7977 |
case 2: /* ldrexb */ |
| 7978 |
gen_load_exclusive(s, rd, 15, addr, 0); |
| 7979 |
break;
|
| 7980 |
case 3: /* ldrexh */ |
| 7981 |
gen_load_exclusive(s, rd, 15, addr, 1); |
| 7982 |
break;
|
| 7983 |
default:
|
| 7984 |
abort(); |
| 7985 |
} |
| 7986 |
} else {
|
| 7987 |
rm = insn & 0xf;
|
| 7988 |
switch (op1) {
|
| 7989 |
case 0: /* strex */ |
| 7990 |
gen_store_exclusive(s, rd, rm, 15, addr, 2); |
| 7991 |
break;
|
| 7992 |
case 1: /* strexd */ |
| 7993 |
gen_store_exclusive(s, rd, rm, rm + 1, addr, 3); |
| 7994 |
break;
|
| 7995 |
case 2: /* strexb */ |
| 7996 |
gen_store_exclusive(s, rd, rm, 15, addr, 0); |
| 7997 |
break;
|
| 7998 |
case 3: /* strexh */ |
| 7999 |
gen_store_exclusive(s, rd, rm, 15, addr, 1); |
| 8000 |
break;
|
| 8001 |
default:
|
| 8002 |
abort(); |
| 8003 |
} |
| 8004 |
} |
| 8005 |
tcg_temp_free_i32(addr); |
| 8006 |
} else {
|
| 8007 |
/* SWP instruction */
|
| 8008 |
rm = (insn) & 0xf;
|
| 8009 |
|
| 8010 |
/* ??? This is not really atomic. However we know
|
| 8011 |
we never have multiple CPUs running in parallel,
|
| 8012 |
so it is good enough. */
|
| 8013 |
addr = load_reg(s, rn); |
| 8014 |
tmp = load_reg(s, rm); |
| 8015 |
tmp2 = tcg_temp_new_i32(); |
| 8016 |
if (insn & (1 << 22)) { |
| 8017 |
gen_aa32_ld8u(tmp2, addr, IS_USER(s)); |
| 8018 |
gen_aa32_st8(tmp, addr, IS_USER(s)); |
| 8019 |
} else {
|
| 8020 |
gen_aa32_ld32u(tmp2, addr, IS_USER(s)); |
| 8021 |
gen_aa32_st32(tmp, addr, IS_USER(s)); |
| 8022 |
} |
| 8023 |
tcg_temp_free_i32(tmp); |
| 8024 |
tcg_temp_free_i32(addr); |
| 8025 |
store_reg(s, rd, tmp2); |
| 8026 |
} |
| 8027 |
} |
| 8028 |
} else {
|
| 8029 |
int address_offset;
|
| 8030 |
int load;
|
| 8031 |
/* Misc load/store */
|
| 8032 |
rn = (insn >> 16) & 0xf; |
| 8033 |
rd = (insn >> 12) & 0xf; |
| 8034 |
addr = load_reg(s, rn); |
| 8035 |
if (insn & (1 << 24)) |
| 8036 |
gen_add_datah_offset(s, insn, 0, addr);
|
| 8037 |
address_offset = 0;
|
| 8038 |
if (insn & (1 << 20)) { |
| 8039 |
/* load */
|
| 8040 |
tmp = tcg_temp_new_i32(); |
| 8041 |
switch(sh) {
|
| 8042 |
case 1: |
| 8043 |
gen_aa32_ld16u(tmp, addr, IS_USER(s)); |
| 8044 |
break;
|
| 8045 |
case 2: |
| 8046 |
gen_aa32_ld8s(tmp, addr, IS_USER(s)); |
| 8047 |
break;
|
| 8048 |
default:
|
| 8049 |
case 3: |
| 8050 |
gen_aa32_ld16s(tmp, addr, IS_USER(s)); |
| 8051 |
break;
|
| 8052 |
} |
| 8053 |
load = 1;
|
| 8054 |
} else if (sh & 2) { |
| 8055 |
ARCH(5TE);
|
| 8056 |
/* doubleword */
|
| 8057 |
if (sh & 1) { |
| 8058 |
/* store */
|
| 8059 |
tmp = load_reg(s, rd); |
| 8060 |
gen_aa32_st32(tmp, addr, IS_USER(s)); |
| 8061 |
tcg_temp_free_i32(tmp); |
| 8062 |
tcg_gen_addi_i32(addr, addr, 4);
|
| 8063 |
tmp = load_reg(s, rd + 1);
|
| 8064 |
gen_aa32_st32(tmp, addr, IS_USER(s)); |
| 8065 |
tcg_temp_free_i32(tmp); |
| 8066 |
load = 0;
|
| 8067 |
} else {
|
| 8068 |
/* load */
|
| 8069 |
tmp = tcg_temp_new_i32(); |
| 8070 |
gen_aa32_ld32u(tmp, addr, IS_USER(s)); |
| 8071 |
store_reg(s, rd, tmp); |
| 8072 |
tcg_gen_addi_i32(addr, addr, 4);
|
| 8073 |
tmp = tcg_temp_new_i32(); |
| 8074 |
gen_aa32_ld32u(tmp, addr, IS_USER(s)); |
| 8075 |
rd++; |
| 8076 |
load = 1;
|
| 8077 |
} |
| 8078 |
address_offset = -4;
|
| 8079 |
} else {
|
| 8080 |
/* store */
|
| 8081 |
tmp = load_reg(s, rd); |
| 8082 |
gen_aa32_st16(tmp, addr, IS_USER(s)); |
| 8083 |
tcg_temp_free_i32(tmp); |
| 8084 |
load = 0;
|
| 8085 |
} |
| 8086 |
/* Perform base writeback before the loaded value to
|
| 8087 |
ensure correct behavior with overlapping index registers.
|
| 8088 |
ldrd with base writeback is is undefined if the
|
| 8089 |
destination and index registers overlap. */
|
| 8090 |
if (!(insn & (1 << 24))) { |
| 8091 |
gen_add_datah_offset(s, insn, address_offset, addr); |
| 8092 |
store_reg(s, rn, addr); |
| 8093 |
} else if (insn & (1 << 21)) { |
| 8094 |
if (address_offset)
|
| 8095 |
tcg_gen_addi_i32(addr, addr, address_offset); |
| 8096 |
store_reg(s, rn, addr); |
| 8097 |
} else {
|
| 8098 |
tcg_temp_free_i32(addr); |
| 8099 |
} |
| 8100 |
if (load) {
|
| 8101 |
/* Complete the load. */
|
| 8102 |
store_reg(s, rd, tmp); |
| 8103 |
} |
| 8104 |
} |
| 8105 |
break;
|
| 8106 |
case 0x4: |
| 8107 |
case 0x5: |
| 8108 |
goto do_ldst;
|
| 8109 |
case 0x6: |
| 8110 |
case 0x7: |
| 8111 |
if (insn & (1 << 4)) { |
| 8112 |
ARCH(6);
|
| 8113 |
/* Armv6 Media instructions. */
|
| 8114 |
rm = insn & 0xf;
|
| 8115 |
rn = (insn >> 16) & 0xf; |
| 8116 |
rd = (insn >> 12) & 0xf; |
| 8117 |
rs = (insn >> 8) & 0xf; |
| 8118 |
switch ((insn >> 23) & 3) { |
| 8119 |
case 0: /* Parallel add/subtract. */ |
| 8120 |
op1 = (insn >> 20) & 7; |
| 8121 |
tmp = load_reg(s, rn); |
| 8122 |
tmp2 = load_reg(s, rm); |
| 8123 |
sh = (insn >> 5) & 7; |
| 8124 |
if ((op1 & 3) == 0 || sh == 5 || sh == 6) |
| 8125 |
goto illegal_op;
|
| 8126 |
gen_arm_parallel_addsub(op1, sh, tmp, tmp2); |
| 8127 |
tcg_temp_free_i32(tmp2); |
| 8128 |
store_reg(s, rd, tmp); |
| 8129 |
break;
|
| 8130 |
case 1: |
| 8131 |
if ((insn & 0x00700020) == 0) { |
| 8132 |
/* Halfword pack. */
|
| 8133 |
tmp = load_reg(s, rn); |
| 8134 |
tmp2 = load_reg(s, rm); |
| 8135 |
shift = (insn >> 7) & 0x1f; |
| 8136 |
if (insn & (1 << 6)) { |
| 8137 |
/* pkhtb */
|
| 8138 |
if (shift == 0) |
| 8139 |
shift = 31;
|
| 8140 |
tcg_gen_sari_i32(tmp2, tmp2, shift); |
| 8141 |
tcg_gen_andi_i32(tmp, tmp, 0xffff0000);
|
| 8142 |
tcg_gen_ext16u_i32(tmp2, tmp2); |
| 8143 |
} else {
|
| 8144 |
/* pkhbt */
|
| 8145 |
if (shift)
|
| 8146 |
tcg_gen_shli_i32(tmp2, tmp2, shift); |
| 8147 |
tcg_gen_ext16u_i32(tmp, tmp); |
| 8148 |
tcg_gen_andi_i32(tmp2, tmp2, 0xffff0000);
|
| 8149 |
} |
| 8150 |
tcg_gen_or_i32(tmp, tmp, tmp2); |
| 8151 |
tcg_temp_free_i32(tmp2); |
| 8152 |
store_reg(s, rd, tmp); |
| 8153 |
} else if ((insn & 0x00200020) == 0x00200000) { |
| 8154 |
/* [us]sat */
|
| 8155 |
tmp = load_reg(s, rm); |
| 8156 |
shift = (insn >> 7) & 0x1f; |
| 8157 |
if (insn & (1 << 6)) { |
| 8158 |
if (shift == 0) |
| 8159 |
shift = 31;
|
| 8160 |
tcg_gen_sari_i32(tmp, tmp, shift); |
| 8161 |
} else {
|
| 8162 |
tcg_gen_shli_i32(tmp, tmp, shift); |
| 8163 |
} |
| 8164 |
sh = (insn >> 16) & 0x1f; |
| 8165 |
tmp2 = tcg_const_i32(sh); |
| 8166 |
if (insn & (1 << 22)) |
| 8167 |
gen_helper_usat(tmp, cpu_env, tmp, tmp2); |
| 8168 |
else
|
| 8169 |
gen_helper_ssat(tmp, cpu_env, tmp, tmp2); |
| 8170 |
tcg_temp_free_i32(tmp2); |
| 8171 |
store_reg(s, rd, tmp); |
| 8172 |
} else if ((insn & 0x00300fe0) == 0x00200f20) { |
| 8173 |
/* [us]sat16 */
|
| 8174 |
tmp = load_reg(s, rm); |
| 8175 |
sh = (insn >> 16) & 0x1f; |
| 8176 |
tmp2 = tcg_const_i32(sh); |
| 8177 |
if (insn & (1 << 22)) |
| 8178 |
gen_helper_usat16(tmp, cpu_env, tmp, tmp2); |
| 8179 |
else
|
| 8180 |
gen_helper_ssat16(tmp, cpu_env, tmp, tmp2); |
| 8181 |
tcg_temp_free_i32(tmp2); |
| 8182 |
store_reg(s, rd, tmp); |
| 8183 |
} else if ((insn & 0x00700fe0) == 0x00000fa0) { |
| 8184 |
/* Select bytes. */
|
| 8185 |
tmp = load_reg(s, rn); |
| 8186 |
tmp2 = load_reg(s, rm); |
| 8187 |
tmp3 = tcg_temp_new_i32(); |
| 8188 |
tcg_gen_ld_i32(tmp3, cpu_env, offsetof(CPUARMState, GE)); |
| 8189 |
gen_helper_sel_flags(tmp, tmp3, tmp, tmp2); |
| 8190 |
tcg_temp_free_i32(tmp3); |
| 8191 |
tcg_temp_free_i32(tmp2); |
| 8192 |
store_reg(s, rd, tmp); |
| 8193 |
} else if ((insn & 0x000003e0) == 0x00000060) { |
| 8194 |
tmp = load_reg(s, rm); |
| 8195 |
shift = (insn >> 10) & 3; |
| 8196 |
/* ??? In many cases it's not necessary to do a
|
| 8197 |
rotate, a shift is sufficient. */
|
| 8198 |
if (shift != 0) |
| 8199 |
tcg_gen_rotri_i32(tmp, tmp, shift * 8);
|
| 8200 |
op1 = (insn >> 20) & 7; |
| 8201 |
switch (op1) {
|
| 8202 |
case 0: gen_sxtb16(tmp); break; |
| 8203 |
case 2: gen_sxtb(tmp); break; |
| 8204 |
case 3: gen_sxth(tmp); break; |
| 8205 |
case 4: gen_uxtb16(tmp); break; |
| 8206 |
case 6: gen_uxtb(tmp); break; |
| 8207 |
case 7: gen_uxth(tmp); break; |
| 8208 |
default: goto illegal_op; |
| 8209 |
} |
| 8210 |
if (rn != 15) { |
| 8211 |
tmp2 = load_reg(s, rn); |
| 8212 |
if ((op1 & 3) == 0) { |
| 8213 |
gen_add16(tmp, tmp2); |
| 8214 |
} else {
|
| 8215 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
| 8216 |
tcg_temp_free_i32(tmp2); |
| 8217 |
} |
| 8218 |
} |
| 8219 |
store_reg(s, rd, tmp); |
| 8220 |
} else if ((insn & 0x003f0f60) == 0x003f0f20) { |
| 8221 |
/* rev */
|
| 8222 |
tmp = load_reg(s, rm); |
| 8223 |
if (insn & (1 << 22)) { |
| 8224 |
if (insn & (1 << 7)) { |
| 8225 |
gen_revsh(tmp); |
| 8226 |
} else {
|
| 8227 |
ARCH(6T2);
|
| 8228 |
gen_helper_rbit(tmp, tmp); |
| 8229 |
} |
| 8230 |
} else {
|
| 8231 |
if (insn & (1 << 7)) |
| 8232 |
gen_rev16(tmp); |
| 8233 |
else
|
| 8234 |
tcg_gen_bswap32_i32(tmp, tmp); |
| 8235 |
} |
| 8236 |
store_reg(s, rd, tmp); |
| 8237 |
} else {
|
| 8238 |
goto illegal_op;
|
| 8239 |
} |
| 8240 |
break;
|
| 8241 |
case 2: /* Multiplies (Type 3). */ |
| 8242 |
switch ((insn >> 20) & 0x7) { |
| 8243 |
case 5: |
| 8244 |
if (((insn >> 6) ^ (insn >> 7)) & 1) { |
| 8245 |
/* op2 not 00x or 11x : UNDEF */
|
| 8246 |
goto illegal_op;
|
| 8247 |
} |
| 8248 |
/* Signed multiply most significant [accumulate].
|
| 8249 |
(SMMUL, SMMLA, SMMLS) */
|
| 8250 |
tmp = load_reg(s, rm); |
| 8251 |
tmp2 = load_reg(s, rs); |
| 8252 |
tmp64 = gen_muls_i64_i32(tmp, tmp2); |
| 8253 |
|
| 8254 |
if (rd != 15) { |
| 8255 |
tmp = load_reg(s, rd); |
| 8256 |
if (insn & (1 << 6)) { |
| 8257 |
tmp64 = gen_subq_msw(tmp64, tmp); |
| 8258 |
} else {
|
| 8259 |
tmp64 = gen_addq_msw(tmp64, tmp); |
| 8260 |
} |
| 8261 |
} |
| 8262 |
if (insn & (1 << 5)) { |
| 8263 |
tcg_gen_addi_i64(tmp64, tmp64, 0x80000000u);
|
| 8264 |
} |
| 8265 |
tcg_gen_shri_i64(tmp64, tmp64, 32);
|
| 8266 |
tmp = tcg_temp_new_i32(); |
| 8267 |
tcg_gen_trunc_i64_i32(tmp, tmp64); |
| 8268 |
tcg_temp_free_i64(tmp64); |
| 8269 |
store_reg(s, rn, tmp); |
| 8270 |
break;
|
| 8271 |
case 0: |
| 8272 |
case 4: |
| 8273 |
/* SMLAD, SMUAD, SMLSD, SMUSD, SMLALD, SMLSLD */
|
| 8274 |
if (insn & (1 << 7)) { |
| 8275 |
goto illegal_op;
|
| 8276 |
} |
| 8277 |
tmp = load_reg(s, rm); |
| 8278 |
tmp2 = load_reg(s, rs); |
| 8279 |
if (insn & (1 << 5)) |
| 8280 |
gen_swap_half(tmp2); |
| 8281 |
gen_smul_dual(tmp, tmp2); |
| 8282 |
if (insn & (1 << 6)) { |
| 8283 |
/* This subtraction cannot overflow. */
|
| 8284 |
tcg_gen_sub_i32(tmp, tmp, tmp2); |
| 8285 |
} else {
|
| 8286 |
/* This addition cannot overflow 32 bits;
|
| 8287 |
* however it may overflow considered as a signed
|
| 8288 |
* operation, in which case we must set the Q flag.
|
| 8289 |
*/
|
| 8290 |
gen_helper_add_setq(tmp, cpu_env, tmp, tmp2); |
| 8291 |
} |
| 8292 |
tcg_temp_free_i32(tmp2); |
| 8293 |
if (insn & (1 << 22)) { |
| 8294 |
/* smlald, smlsld */
|
| 8295 |
tmp64 = tcg_temp_new_i64(); |
| 8296 |
tcg_gen_ext_i32_i64(tmp64, tmp); |
| 8297 |
tcg_temp_free_i32(tmp); |
| 8298 |
gen_addq(s, tmp64, rd, rn); |
| 8299 |
gen_storeq_reg(s, rd, rn, tmp64); |
| 8300 |
tcg_temp_free_i64(tmp64); |
| 8301 |
} else {
|
| 8302 |
/* smuad, smusd, smlad, smlsd */
|
| 8303 |
if (rd != 15) |
| 8304 |
{
|
| 8305 |
tmp2 = load_reg(s, rd); |
| 8306 |
gen_helper_add_setq(tmp, cpu_env, tmp, tmp2); |
| 8307 |
tcg_temp_free_i32(tmp2); |
| 8308 |
} |
| 8309 |
store_reg(s, rn, tmp); |
| 8310 |
} |
| 8311 |
break;
|
| 8312 |
case 1: |
| 8313 |
case 3: |
| 8314 |
/* SDIV, UDIV */
|
| 8315 |
if (!arm_feature(env, ARM_FEATURE_ARM_DIV)) {
|
| 8316 |
goto illegal_op;
|
| 8317 |
} |
| 8318 |
if (((insn >> 5) & 7) || (rd != 15)) { |
| 8319 |
goto illegal_op;
|
| 8320 |
} |
| 8321 |
tmp = load_reg(s, rm); |
| 8322 |
tmp2 = load_reg(s, rs); |
| 8323 |
if (insn & (1 << 21)) { |
| 8324 |
gen_helper_udiv(tmp, tmp, tmp2); |
| 8325 |
} else {
|
| 8326 |
gen_helper_sdiv(tmp, tmp, tmp2); |
| 8327 |
} |
| 8328 |
tcg_temp_free_i32(tmp2); |
| 8329 |
store_reg(s, rn, tmp); |
| 8330 |
break;
|
| 8331 |
default:
|
| 8332 |
goto illegal_op;
|
| 8333 |
} |
| 8334 |
break;
|
| 8335 |
case 3: |
| 8336 |
op1 = ((insn >> 17) & 0x38) | ((insn >> 5) & 7); |
| 8337 |
switch (op1) {
|
| 8338 |
case 0: /* Unsigned sum of absolute differences. */ |
| 8339 |
ARCH(6);
|
| 8340 |
tmp = load_reg(s, rm); |
| 8341 |
tmp2 = load_reg(s, rs); |
| 8342 |
gen_helper_usad8(tmp, tmp, tmp2); |
| 8343 |
tcg_temp_free_i32(tmp2); |
| 8344 |
if (rd != 15) { |
| 8345 |
tmp2 = load_reg(s, rd); |
| 8346 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
| 8347 |
tcg_temp_free_i32(tmp2); |
| 8348 |
} |
| 8349 |
store_reg(s, rn, tmp); |
| 8350 |
break;
|
| 8351 |
case 0x20: case 0x24: case 0x28: case 0x2c: |
| 8352 |
/* Bitfield insert/clear. */
|
| 8353 |
ARCH(6T2);
|
| 8354 |
shift = (insn >> 7) & 0x1f; |
| 8355 |
i = (insn >> 16) & 0x1f; |
| 8356 |
i = i + 1 - shift;
|
| 8357 |
if (rm == 15) { |
| 8358 |
tmp = tcg_temp_new_i32(); |
| 8359 |
tcg_gen_movi_i32(tmp, 0);
|
| 8360 |
} else {
|
| 8361 |
tmp = load_reg(s, rm); |
| 8362 |
} |
| 8363 |
if (i != 32) { |
| 8364 |
tmp2 = load_reg(s, rd); |
| 8365 |
tcg_gen_deposit_i32(tmp, tmp2, tmp, shift, i); |
| 8366 |
tcg_temp_free_i32(tmp2); |
| 8367 |
} |
| 8368 |
store_reg(s, rd, tmp); |
| 8369 |
break;
|
| 8370 |
case 0x12: case 0x16: case 0x1a: case 0x1e: /* sbfx */ |
| 8371 |
case 0x32: case 0x36: case 0x3a: case 0x3e: /* ubfx */ |
| 8372 |
ARCH(6T2);
|
| 8373 |
tmp = load_reg(s, rm); |
| 8374 |
shift = (insn >> 7) & 0x1f; |
| 8375 |
i = ((insn >> 16) & 0x1f) + 1; |
| 8376 |
if (shift + i > 32) |
| 8377 |
goto illegal_op;
|
| 8378 |
if (i < 32) { |
| 8379 |
if (op1 & 0x20) { |
| 8380 |
gen_ubfx(tmp, shift, (1u << i) - 1); |
| 8381 |
} else {
|
| 8382 |
gen_sbfx(tmp, shift, i); |
| 8383 |
} |
| 8384 |
} |
| 8385 |
store_reg(s, rd, tmp); |
| 8386 |
break;
|
| 8387 |
default:
|
| 8388 |
goto illegal_op;
|
| 8389 |
} |
| 8390 |
break;
|
| 8391 |
} |
| 8392 |
break;
|
| 8393 |
} |
| 8394 |
do_ldst:
|
| 8395 |
/* Check for undefined extension instructions
|
| 8396 |
* per the ARM Bible IE:
|
| 8397 |
* xxxx 0111 1111 xxxx xxxx xxxx 1111 xxxx
|
| 8398 |
*/
|
| 8399 |
sh = (0xf << 20) | (0xf << 4); |
| 8400 |
if (op1 == 0x7 && ((insn & sh) == sh)) |
| 8401 |
{
|
| 8402 |
goto illegal_op;
|
| 8403 |
} |
| 8404 |
/* load/store byte/word */
|
| 8405 |
rn = (insn >> 16) & 0xf; |
| 8406 |
rd = (insn >> 12) & 0xf; |
| 8407 |
tmp2 = load_reg(s, rn); |
| 8408 |
i = (IS_USER(s) || (insn & 0x01200000) == 0x00200000); |
| 8409 |
if (insn & (1 << 24)) |
| 8410 |
gen_add_data_offset(s, insn, tmp2); |
| 8411 |
if (insn & (1 << 20)) { |
| 8412 |
/* load */
|
| 8413 |
tmp = tcg_temp_new_i32(); |
| 8414 |
if (insn & (1 << 22)) { |
| 8415 |
gen_aa32_ld8u(tmp, tmp2, i); |
| 8416 |
} else {
|
| 8417 |
gen_aa32_ld32u(tmp, tmp2, i); |
| 8418 |
} |
| 8419 |
} else {
|
| 8420 |
/* store */
|
| 8421 |
tmp = load_reg(s, rd); |
| 8422 |
if (insn & (1 << 22)) { |
| 8423 |
gen_aa32_st8(tmp, tmp2, i); |
| 8424 |
} else {
|
| 8425 |
gen_aa32_st32(tmp, tmp2, i); |
| 8426 |
} |
| 8427 |
tcg_temp_free_i32(tmp); |
| 8428 |
} |
| 8429 |
if (!(insn & (1 << 24))) { |
| 8430 |
gen_add_data_offset(s, insn, tmp2); |
| 8431 |
store_reg(s, rn, tmp2); |
| 8432 |
} else if (insn & (1 << 21)) { |
| 8433 |
store_reg(s, rn, tmp2); |
| 8434 |
} else {
|
| 8435 |
tcg_temp_free_i32(tmp2); |
| 8436 |
} |
| 8437 |
if (insn & (1 << 20)) { |
| 8438 |
/* Complete the load. */
|
| 8439 |
store_reg_from_load(env, s, rd, tmp); |
| 8440 |
} |
| 8441 |
break;
|
| 8442 |
case 0x08: |
| 8443 |
case 0x09: |
| 8444 |
{
|
| 8445 |
int j, n, user, loaded_base;
|
| 8446 |
TCGv_i32 loaded_var; |
| 8447 |
/* load/store multiple words */
|
| 8448 |
/* XXX: store correct base if write back */
|
| 8449 |
user = 0;
|
| 8450 |
if (insn & (1 << 22)) { |
| 8451 |
if (IS_USER(s))
|
| 8452 |
goto illegal_op; /* only usable in supervisor mode */ |
| 8453 |
|
| 8454 |
if ((insn & (1 << 15)) == 0) |
| 8455 |
user = 1;
|
| 8456 |
} |
| 8457 |
rn = (insn >> 16) & 0xf; |
| 8458 |
addr = load_reg(s, rn); |
| 8459 |
|
| 8460 |
/* compute total size */
|
| 8461 |
loaded_base = 0;
|
| 8462 |
TCGV_UNUSED_I32(loaded_var); |
| 8463 |
n = 0;
|
| 8464 |
for(i=0;i<16;i++) { |
| 8465 |
if (insn & (1 << i)) |
| 8466 |
n++; |
| 8467 |
} |
| 8468 |
/* XXX: test invalid n == 0 case ? */
|
| 8469 |
if (insn & (1 << 23)) { |
| 8470 |
if (insn & (1 << 24)) { |
| 8471 |
/* pre increment */
|
| 8472 |
tcg_gen_addi_i32(addr, addr, 4);
|
| 8473 |
} else {
|
| 8474 |
/* post increment */
|
| 8475 |
} |
| 8476 |
} else {
|
| 8477 |
if (insn & (1 << 24)) { |
| 8478 |
/* pre decrement */
|
| 8479 |
tcg_gen_addi_i32(addr, addr, -(n * 4));
|
| 8480 |
} else {
|
| 8481 |
/* post decrement */
|
| 8482 |
if (n != 1) |
| 8483 |
tcg_gen_addi_i32(addr, addr, -((n - 1) * 4)); |
| 8484 |
} |
| 8485 |
} |
| 8486 |
j = 0;
|
| 8487 |
for(i=0;i<16;i++) { |
| 8488 |
if (insn & (1 << i)) { |
| 8489 |
if (insn & (1 << 20)) { |
| 8490 |
/* load */
|
| 8491 |
tmp = tcg_temp_new_i32(); |
| 8492 |
gen_aa32_ld32u(tmp, addr, IS_USER(s)); |
| 8493 |
if (user) {
|
| 8494 |
tmp2 = tcg_const_i32(i); |
| 8495 |
gen_helper_set_user_reg(cpu_env, tmp2, tmp); |
| 8496 |
tcg_temp_free_i32(tmp2); |
| 8497 |
tcg_temp_free_i32(tmp); |
| 8498 |
} else if (i == rn) { |
| 8499 |
loaded_var = tmp; |
| 8500 |
loaded_base = 1;
|
| 8501 |
} else {
|
| 8502 |
store_reg_from_load(env, s, i, tmp); |
| 8503 |
} |
| 8504 |
} else {
|
| 8505 |
/* store */
|
| 8506 |
if (i == 15) { |
| 8507 |
/* special case: r15 = PC + 8 */
|
| 8508 |
val = (long)s->pc + 4; |
| 8509 |
tmp = tcg_temp_new_i32(); |
| 8510 |
tcg_gen_movi_i32(tmp, val); |
| 8511 |
} else if (user) { |
| 8512 |
tmp = tcg_temp_new_i32(); |
| 8513 |
tmp2 = tcg_const_i32(i); |
| 8514 |
gen_helper_get_user_reg(tmp, cpu_env, tmp2); |
| 8515 |
tcg_temp_free_i32(tmp2); |
| 8516 |
} else {
|
| 8517 |
tmp = load_reg(s, i); |
| 8518 |
} |
| 8519 |
gen_aa32_st32(tmp, addr, IS_USER(s)); |
| 8520 |
tcg_temp_free_i32(tmp); |
| 8521 |
} |
| 8522 |
j++; |
| 8523 |
/* no need to add after the last transfer */
|
| 8524 |
if (j != n)
|
| 8525 |
tcg_gen_addi_i32(addr, addr, 4);
|
| 8526 |
} |
| 8527 |
} |
| 8528 |
if (insn & (1 << 21)) { |
| 8529 |
/* write back */
|
| 8530 |
if (insn & (1 << 23)) { |
| 8531 |
if (insn & (1 << 24)) { |
| 8532 |
/* pre increment */
|
| 8533 |
} else {
|
| 8534 |
/* post increment */
|
| 8535 |
tcg_gen_addi_i32(addr, addr, 4);
|
| 8536 |
} |
| 8537 |
} else {
|
| 8538 |
if (insn & (1 << 24)) { |
| 8539 |
/* pre decrement */
|
| 8540 |
if (n != 1) |
| 8541 |
tcg_gen_addi_i32(addr, addr, -((n - 1) * 4)); |
| 8542 |
} else {
|
| 8543 |
/* post decrement */
|
| 8544 |
tcg_gen_addi_i32(addr, addr, -(n * 4));
|
| 8545 |
} |
| 8546 |
} |
| 8547 |
store_reg(s, rn, addr); |
| 8548 |
} else {
|
| 8549 |
tcg_temp_free_i32(addr); |
| 8550 |
} |
| 8551 |
if (loaded_base) {
|
| 8552 |
store_reg(s, rn, loaded_var); |
| 8553 |
} |
| 8554 |
if ((insn & (1 << 22)) && !user) { |
| 8555 |
/* Restore CPSR from SPSR. */
|
| 8556 |
tmp = load_cpu_field(spsr); |
| 8557 |
gen_set_cpsr(tmp, 0xffffffff);
|
| 8558 |
tcg_temp_free_i32(tmp); |
| 8559 |
s->is_jmp = DISAS_UPDATE; |
| 8560 |
} |
| 8561 |
} |
| 8562 |
break;
|
| 8563 |
case 0xa: |
| 8564 |
case 0xb: |
| 8565 |
{
|
| 8566 |
int32_t offset; |
| 8567 |
|
| 8568 |
/* branch (and link) */
|
| 8569 |
val = (int32_t)s->pc; |
| 8570 |
if (insn & (1 << 24)) { |
| 8571 |
tmp = tcg_temp_new_i32(); |
| 8572 |
tcg_gen_movi_i32(tmp, val); |
| 8573 |
store_reg(s, 14, tmp);
|
| 8574 |
} |
| 8575 |
offset = sextract32(insn << 2, 0, 26); |
| 8576 |
val += offset + 4;
|
| 8577 |
gen_jmp(s, val); |
| 8578 |
} |
| 8579 |
break;
|
| 8580 |
case 0xc: |
| 8581 |
case 0xd: |
| 8582 |
case 0xe: |
| 8583 |
if (((insn >> 8) & 0xe) == 10) { |
| 8584 |
/* VFP. */
|
| 8585 |
if (disas_vfp_insn(env, s, insn)) {
|
| 8586 |
goto illegal_op;
|
| 8587 |
} |
| 8588 |
} else if (disas_coproc_insn(env, s, insn)) { |
| 8589 |
/* Coprocessor. */
|
| 8590 |
goto illegal_op;
|
| 8591 |
} |
| 8592 |
break;
|
| 8593 |
case 0xf: |
| 8594 |
/* swi */
|
| 8595 |
gen_set_pc_im(s, s->pc); |
| 8596 |
s->is_jmp = DISAS_SWI; |
| 8597 |
break;
|
| 8598 |
default:
|
| 8599 |
illegal_op:
|
| 8600 |
gen_exception_insn(s, 4, EXCP_UDEF);
|
| 8601 |
break;
|
| 8602 |
} |
| 8603 |
} |
| 8604 |
} |
| 8605 |
|
| 8606 |
/* Return true if this is a Thumb-2 logical op. */
|
| 8607 |
static int |
| 8608 |
thumb2_logic_op(int op)
|
| 8609 |
{
|
| 8610 |
return (op < 8); |
| 8611 |
} |
| 8612 |
|
| 8613 |
/* Generate code for a Thumb-2 data processing operation. If CONDS is nonzero
|
| 8614 |
then set condition code flags based on the result of the operation.
|
| 8615 |
If SHIFTER_OUT is nonzero then set the carry flag for logical operations
|
| 8616 |
to the high bit of T1.
|
| 8617 |
Returns zero if the opcode is valid. */
|
| 8618 |
|
| 8619 |
static int |
| 8620 |
gen_thumb2_data_op(DisasContext *s, int op, int conds, uint32_t shifter_out, |
| 8621 |
TCGv_i32 t0, TCGv_i32 t1) |
| 8622 |
{
|
| 8623 |
int logic_cc;
|
| 8624 |
|
| 8625 |
logic_cc = 0;
|
| 8626 |
switch (op) {
|
| 8627 |
case 0: /* and */ |
| 8628 |
tcg_gen_and_i32(t0, t0, t1); |
| 8629 |
logic_cc = conds; |
| 8630 |
break;
|
| 8631 |
case 1: /* bic */ |
| 8632 |
tcg_gen_andc_i32(t0, t0, t1); |
| 8633 |
logic_cc = conds; |
| 8634 |
break;
|
| 8635 |
case 2: /* orr */ |
| 8636 |
tcg_gen_or_i32(t0, t0, t1); |
| 8637 |
logic_cc = conds; |
| 8638 |
break;
|
| 8639 |
case 3: /* orn */ |
| 8640 |
tcg_gen_orc_i32(t0, t0, t1); |
| 8641 |
logic_cc = conds; |
| 8642 |
break;
|
| 8643 |
case 4: /* eor */ |
| 8644 |
tcg_gen_xor_i32(t0, t0, t1); |
| 8645 |
logic_cc = conds; |
| 8646 |
break;
|
| 8647 |
case 8: /* add */ |
| 8648 |
if (conds)
|
| 8649 |
gen_add_CC(t0, t0, t1); |
| 8650 |
else
|
| 8651 |
tcg_gen_add_i32(t0, t0, t1); |
| 8652 |
break;
|
| 8653 |
case 10: /* adc */ |
| 8654 |
if (conds)
|
| 8655 |
gen_adc_CC(t0, t0, t1); |
| 8656 |
else
|
| 8657 |
gen_adc(t0, t1); |
| 8658 |
break;
|
| 8659 |
case 11: /* sbc */ |
| 8660 |
if (conds) {
|
| 8661 |
gen_sbc_CC(t0, t0, t1); |
| 8662 |
} else {
|
| 8663 |
gen_sub_carry(t0, t0, t1); |
| 8664 |
} |
| 8665 |
break;
|
| 8666 |
case 13: /* sub */ |
| 8667 |
if (conds)
|
| 8668 |
gen_sub_CC(t0, t0, t1); |
| 8669 |
else
|
| 8670 |
tcg_gen_sub_i32(t0, t0, t1); |
| 8671 |
break;
|
| 8672 |
case 14: /* rsb */ |
| 8673 |
if (conds)
|
| 8674 |
gen_sub_CC(t0, t1, t0); |
| 8675 |
else
|
| 8676 |
tcg_gen_sub_i32(t0, t1, t0); |
| 8677 |
break;
|
| 8678 |
default: /* 5, 6, 7, 9, 12, 15. */ |
| 8679 |
return 1; |
| 8680 |
} |
| 8681 |
if (logic_cc) {
|
| 8682 |
gen_logic_CC(t0); |
| 8683 |
if (shifter_out)
|
| 8684 |
gen_set_CF_bit31(t1); |
| 8685 |
} |
| 8686 |
return 0; |
| 8687 |
} |
| 8688 |
|
| 8689 |
/* Translate a 32-bit thumb instruction. Returns nonzero if the instruction
|
| 8690 |
is not legal. */
|
| 8691 |
static int disas_thumb2_insn(CPUARMState *env, DisasContext *s, uint16_t insn_hw1) |
| 8692 |
{
|
| 8693 |
uint32_t insn, imm, shift, offset; |
| 8694 |
uint32_t rd, rn, rm, rs; |
| 8695 |
TCGv_i32 tmp; |
| 8696 |
TCGv_i32 tmp2; |
| 8697 |
TCGv_i32 tmp3; |
| 8698 |
TCGv_i32 addr; |
| 8699 |
TCGv_i64 tmp64; |
| 8700 |
int op;
|
| 8701 |
int shiftop;
|
| 8702 |
int conds;
|
| 8703 |
int logic_cc;
|
| 8704 |
|
| 8705 |
if (!(arm_feature(env, ARM_FEATURE_THUMB2)
|
| 8706 |
|| arm_feature (env, ARM_FEATURE_M))) {
|
| 8707 |
/* Thumb-1 cores may need to treat bl and blx as a pair of
|
| 8708 |
16-bit instructions to get correct prefetch abort behavior. */
|
| 8709 |
insn = insn_hw1; |
| 8710 |
if ((insn & (1 << 12)) == 0) { |
| 8711 |
ARCH(5);
|
| 8712 |
/* Second half of blx. */
|
| 8713 |
offset = ((insn & 0x7ff) << 1); |
| 8714 |
tmp = load_reg(s, 14);
|
| 8715 |
tcg_gen_addi_i32(tmp, tmp, offset); |
| 8716 |
tcg_gen_andi_i32(tmp, tmp, 0xfffffffc);
|
| 8717 |
|
| 8718 |
tmp2 = tcg_temp_new_i32(); |
| 8719 |
tcg_gen_movi_i32(tmp2, s->pc | 1);
|
| 8720 |
store_reg(s, 14, tmp2);
|
| 8721 |
gen_bx(s, tmp); |
| 8722 |
return 0; |
| 8723 |
} |
| 8724 |
if (insn & (1 << 11)) { |
| 8725 |
/* Second half of bl. */
|
| 8726 |
offset = ((insn & 0x7ff) << 1) | 1; |
| 8727 |
tmp = load_reg(s, 14);
|
| 8728 |
tcg_gen_addi_i32(tmp, tmp, offset); |
| 8729 |
|
| 8730 |
tmp2 = tcg_temp_new_i32(); |
| 8731 |
tcg_gen_movi_i32(tmp2, s->pc | 1);
|
| 8732 |
store_reg(s, 14, tmp2);
|
| 8733 |
gen_bx(s, tmp); |
| 8734 |
return 0; |
| 8735 |
} |
| 8736 |
if ((s->pc & ~TARGET_PAGE_MASK) == 0) { |
| 8737 |
/* Instruction spans a page boundary. Implement it as two
|
| 8738 |
16-bit instructions in case the second half causes an
|
| 8739 |
prefetch abort. */
|
| 8740 |
offset = ((int32_t)insn << 21) >> 9; |
| 8741 |
tcg_gen_movi_i32(cpu_R[14], s->pc + 2 + offset); |
| 8742 |
return 0; |
| 8743 |
} |
| 8744 |
/* Fall through to 32-bit decode. */
|
| 8745 |
} |
| 8746 |
|
| 8747 |
insn = arm_lduw_code(env, s->pc, s->bswap_code); |
| 8748 |
s->pc += 2;
|
| 8749 |
insn |= (uint32_t)insn_hw1 << 16;
|
| 8750 |
|
| 8751 |
if ((insn & 0xf800e800) != 0xf000e800) { |
| 8752 |
ARCH(6T2);
|
| 8753 |
} |
| 8754 |
|
| 8755 |
rn = (insn >> 16) & 0xf; |
| 8756 |
rs = (insn >> 12) & 0xf; |
| 8757 |
rd = (insn >> 8) & 0xf; |
| 8758 |
rm = insn & 0xf;
|
| 8759 |
switch ((insn >> 25) & 0xf) { |
| 8760 |
case 0: case 1: case 2: case 3: |
| 8761 |
/* 16-bit instructions. Should never happen. */
|
| 8762 |
abort(); |
| 8763 |
case 4: |
| 8764 |
if (insn & (1 << 22)) { |
| 8765 |
/* Other load/store, table branch. */
|
| 8766 |
if (insn & 0x01200000) { |
| 8767 |
/* Load/store doubleword. */
|
| 8768 |
if (rn == 15) { |
| 8769 |
addr = tcg_temp_new_i32(); |
| 8770 |
tcg_gen_movi_i32(addr, s->pc & ~3);
|
| 8771 |
} else {
|
| 8772 |
addr = load_reg(s, rn); |
| 8773 |
} |
| 8774 |
offset = (insn & 0xff) * 4; |
| 8775 |
if ((insn & (1 << 23)) == 0) |
| 8776 |
offset = -offset; |
| 8777 |
if (insn & (1 << 24)) { |
| 8778 |
tcg_gen_addi_i32(addr, addr, offset); |
| 8779 |
offset = 0;
|
| 8780 |
} |
| 8781 |
if (insn & (1 << 20)) { |
| 8782 |
/* ldrd */
|
| 8783 |
tmp = tcg_temp_new_i32(); |
| 8784 |
gen_aa32_ld32u(tmp, addr, IS_USER(s)); |
| 8785 |
store_reg(s, rs, tmp); |
| 8786 |
tcg_gen_addi_i32(addr, addr, 4);
|
| 8787 |
tmp = tcg_temp_new_i32(); |
| 8788 |
gen_aa32_ld32u(tmp, addr, IS_USER(s)); |
| 8789 |
store_reg(s, rd, tmp); |
| 8790 |
} else {
|
| 8791 |
/* strd */
|
| 8792 |
tmp = load_reg(s, rs); |
| 8793 |
gen_aa32_st32(tmp, addr, IS_USER(s)); |
| 8794 |
tcg_temp_free_i32(tmp); |
| 8795 |
tcg_gen_addi_i32(addr, addr, 4);
|
| 8796 |
tmp = load_reg(s, rd); |
| 8797 |
gen_aa32_st32(tmp, addr, IS_USER(s)); |
| 8798 |
tcg_temp_free_i32(tmp); |
| 8799 |
} |
| 8800 |
if (insn & (1 << 21)) { |
| 8801 |
/* Base writeback. */
|
| 8802 |
if (rn == 15) |
| 8803 |
goto illegal_op;
|
| 8804 |
tcg_gen_addi_i32(addr, addr, offset - 4);
|
| 8805 |
store_reg(s, rn, addr); |
| 8806 |
} else {
|
| 8807 |
tcg_temp_free_i32(addr); |
| 8808 |
} |
| 8809 |
} else if ((insn & (1 << 23)) == 0) { |
| 8810 |
/* Load/store exclusive word. */
|
| 8811 |
addr = tcg_temp_local_new_i32(); |
| 8812 |
load_reg_var(s, addr, rn); |
| 8813 |
tcg_gen_addi_i32(addr, addr, (insn & 0xff) << 2); |
| 8814 |
if (insn & (1 << 20)) { |
| 8815 |
gen_load_exclusive(s, rs, 15, addr, 2); |
| 8816 |
} else {
|
| 8817 |
gen_store_exclusive(s, rd, rs, 15, addr, 2); |
| 8818 |
} |
| 8819 |
tcg_temp_free_i32(addr); |
| 8820 |
} else if ((insn & (7 << 5)) == 0) { |
| 8821 |
/* Table Branch. */
|
| 8822 |
if (rn == 15) { |
| 8823 |
addr = tcg_temp_new_i32(); |
| 8824 |
tcg_gen_movi_i32(addr, s->pc); |
| 8825 |
} else {
|
| 8826 |
addr = load_reg(s, rn); |
| 8827 |
} |
| 8828 |
tmp = load_reg(s, rm); |
| 8829 |
tcg_gen_add_i32(addr, addr, tmp); |
| 8830 |
if (insn & (1 << 4)) { |
| 8831 |
/* tbh */
|
| 8832 |
tcg_gen_add_i32(addr, addr, tmp); |
| 8833 |
tcg_temp_free_i32(tmp); |
| 8834 |
tmp = tcg_temp_new_i32(); |
| 8835 |
gen_aa32_ld16u(tmp, addr, IS_USER(s)); |
| 8836 |
} else { /* tbb */ |
| 8837 |
tcg_temp_free_i32(tmp); |
| 8838 |
tmp = tcg_temp_new_i32(); |
| 8839 |
gen_aa32_ld8u(tmp, addr, IS_USER(s)); |
| 8840 |
} |
| 8841 |
tcg_temp_free_i32(addr); |
| 8842 |
tcg_gen_shli_i32(tmp, tmp, 1);
|
| 8843 |
tcg_gen_addi_i32(tmp, tmp, s->pc); |
| 8844 |
store_reg(s, 15, tmp);
|
| 8845 |
} else {
|
| 8846 |
int op2 = (insn >> 6) & 0x3; |
| 8847 |
op = (insn >> 4) & 0x3; |
| 8848 |
switch (op2) {
|
| 8849 |
case 0: |
| 8850 |
goto illegal_op;
|
| 8851 |
case 1: |
| 8852 |
/* Load/store exclusive byte/halfword/doubleword */
|
| 8853 |
if (op == 2) { |
| 8854 |
goto illegal_op;
|
| 8855 |
} |
| 8856 |
ARCH(7);
|
| 8857 |
break;
|
| 8858 |
case 2: |
| 8859 |
/* Load-acquire/store-release */
|
| 8860 |
if (op == 3) { |
| 8861 |
goto illegal_op;
|
| 8862 |
} |
| 8863 |
/* Fall through */
|
| 8864 |
case 3: |
| 8865 |
/* Load-acquire/store-release exclusive */
|
| 8866 |
ARCH(8);
|
| 8867 |
break;
|
| 8868 |
} |
| 8869 |
addr = tcg_temp_local_new_i32(); |
| 8870 |
load_reg_var(s, addr, rn); |
| 8871 |
if (!(op2 & 1)) { |
| 8872 |
if (insn & (1 << 20)) { |
| 8873 |
tmp = tcg_temp_new_i32(); |
| 8874 |
switch (op) {
|
| 8875 |
case 0: /* ldab */ |
| 8876 |
gen_aa32_ld8u(tmp, addr, IS_USER(s)); |
| 8877 |
break;
|
| 8878 |
case 1: /* ldah */ |
| 8879 |
gen_aa32_ld16u(tmp, addr, IS_USER(s)); |
| 8880 |
break;
|
| 8881 |
case 2: /* lda */ |
| 8882 |
gen_aa32_ld32u(tmp, addr, IS_USER(s)); |
| 8883 |
break;
|
| 8884 |
default:
|
| 8885 |
abort(); |
| 8886 |
} |
| 8887 |
store_reg(s, rs, tmp); |
| 8888 |
} else {
|
| 8889 |
tmp = load_reg(s, rs); |
| 8890 |
switch (op) {
|
| 8891 |
case 0: /* stlb */ |
| 8892 |
gen_aa32_st8(tmp, addr, IS_USER(s)); |
| 8893 |
break;
|
| 8894 |
case 1: /* stlh */ |
| 8895 |
gen_aa32_st16(tmp, addr, IS_USER(s)); |
| 8896 |
break;
|
| 8897 |
case 2: /* stl */ |
| 8898 |
gen_aa32_st32(tmp, addr, IS_USER(s)); |
| 8899 |
break;
|
| 8900 |
default:
|
| 8901 |
abort(); |
| 8902 |
} |
| 8903 |
tcg_temp_free_i32(tmp); |
| 8904 |
} |
| 8905 |
} else if (insn & (1 << 20)) { |
| 8906 |
gen_load_exclusive(s, rs, rd, addr, op); |
| 8907 |
} else {
|
| 8908 |
gen_store_exclusive(s, rm, rs, rd, addr, op); |
| 8909 |
} |
| 8910 |
tcg_temp_free_i32(addr); |
| 8911 |
} |
| 8912 |
} else {
|
| 8913 |
/* Load/store multiple, RFE, SRS. */
|
| 8914 |
if (((insn >> 23) & 1) == ((insn >> 24) & 1)) { |
| 8915 |
/* RFE, SRS: not available in user mode or on M profile */
|
| 8916 |
if (IS_USER(s) || IS_M(env)) {
|
| 8917 |
goto illegal_op;
|
| 8918 |
} |
| 8919 |
if (insn & (1 << 20)) { |
| 8920 |
/* rfe */
|
| 8921 |
addr = load_reg(s, rn); |
| 8922 |
if ((insn & (1 << 24)) == 0) |
| 8923 |
tcg_gen_addi_i32(addr, addr, -8);
|
| 8924 |
/* Load PC into tmp and CPSR into tmp2. */
|
| 8925 |
tmp = tcg_temp_new_i32(); |
| 8926 |
gen_aa32_ld32u(tmp, addr, 0);
|
| 8927 |
tcg_gen_addi_i32(addr, addr, 4);
|
| 8928 |
tmp2 = tcg_temp_new_i32(); |
| 8929 |
gen_aa32_ld32u(tmp2, addr, 0);
|
| 8930 |
if (insn & (1 << 21)) { |
| 8931 |
/* Base writeback. */
|
| 8932 |
if (insn & (1 << 24)) { |
| 8933 |
tcg_gen_addi_i32(addr, addr, 4);
|
| 8934 |
} else {
|
| 8935 |
tcg_gen_addi_i32(addr, addr, -4);
|
| 8936 |
} |
| 8937 |
store_reg(s, rn, addr); |
| 8938 |
} else {
|
| 8939 |
tcg_temp_free_i32(addr); |
| 8940 |
} |
| 8941 |
gen_rfe(s, tmp, tmp2); |
| 8942 |
} else {
|
| 8943 |
/* srs */
|
| 8944 |
gen_srs(s, (insn & 0x1f), (insn & (1 << 24)) ? 1 : 2, |
| 8945 |
insn & (1 << 21)); |
| 8946 |
} |
| 8947 |
} else {
|
| 8948 |
int i, loaded_base = 0; |
| 8949 |
TCGv_i32 loaded_var; |
| 8950 |
/* Load/store multiple. */
|
| 8951 |
addr = load_reg(s, rn); |
| 8952 |
offset = 0;
|
| 8953 |
for (i = 0; i < 16; i++) { |
| 8954 |
if (insn & (1 << i)) |
| 8955 |
offset += 4;
|
| 8956 |
} |
| 8957 |
if (insn & (1 << 24)) { |
| 8958 |
tcg_gen_addi_i32(addr, addr, -offset); |
| 8959 |
} |
| 8960 |
|
| 8961 |
TCGV_UNUSED_I32(loaded_var); |
| 8962 |
for (i = 0; i < 16; i++) { |
| 8963 |
if ((insn & (1 << i)) == 0) |
| 8964 |
continue;
|
| 8965 |
if (insn & (1 << 20)) { |
| 8966 |
/* Load. */
|
| 8967 |
tmp = tcg_temp_new_i32(); |
| 8968 |
gen_aa32_ld32u(tmp, addr, IS_USER(s)); |
| 8969 |
if (i == 15) { |
| 8970 |
gen_bx(s, tmp); |
| 8971 |
} else if (i == rn) { |
| 8972 |
loaded_var = tmp; |
| 8973 |
loaded_base = 1;
|
| 8974 |
} else {
|
| 8975 |
store_reg(s, i, tmp); |
| 8976 |
} |
| 8977 |
} else {
|
| 8978 |
/* Store. */
|
| 8979 |
tmp = load_reg(s, i); |
| 8980 |
gen_aa32_st32(tmp, addr, IS_USER(s)); |
| 8981 |
tcg_temp_free_i32(tmp); |
| 8982 |
} |
| 8983 |
tcg_gen_addi_i32(addr, addr, 4);
|
| 8984 |
} |
| 8985 |
if (loaded_base) {
|
| 8986 |
store_reg(s, rn, loaded_var); |
| 8987 |
} |
| 8988 |
if (insn & (1 << 21)) { |
| 8989 |
/* Base register writeback. */
|
| 8990 |
if (insn & (1 << 24)) { |
| 8991 |
tcg_gen_addi_i32(addr, addr, -offset); |
| 8992 |
} |
| 8993 |
/* Fault if writeback register is in register list. */
|
| 8994 |
if (insn & (1 << rn)) |
| 8995 |
goto illegal_op;
|
| 8996 |
store_reg(s, rn, addr); |
| 8997 |
} else {
|
| 8998 |
tcg_temp_free_i32(addr); |
| 8999 |
} |
| 9000 |
} |
| 9001 |
} |
| 9002 |
break;
|
| 9003 |
case 5: |
| 9004 |
|
| 9005 |
op = (insn >> 21) & 0xf; |
| 9006 |
if (op == 6) { |
| 9007 |
/* Halfword pack. */
|
| 9008 |
tmp = load_reg(s, rn); |
| 9009 |
tmp2 = load_reg(s, rm); |
| 9010 |
shift = ((insn >> 10) & 0x1c) | ((insn >> 6) & 0x3); |
| 9011 |
if (insn & (1 << 5)) { |
| 9012 |
/* pkhtb */
|
| 9013 |
if (shift == 0) |
| 9014 |
shift = 31;
|
| 9015 |
tcg_gen_sari_i32(tmp2, tmp2, shift); |
| 9016 |
tcg_gen_andi_i32(tmp, tmp, 0xffff0000);
|
| 9017 |
tcg_gen_ext16u_i32(tmp2, tmp2); |
| 9018 |
} else {
|
| 9019 |
/* pkhbt */
|
| 9020 |
if (shift)
|
| 9021 |
tcg_gen_shli_i32(tmp2, tmp2, shift); |
| 9022 |
tcg_gen_ext16u_i32(tmp, tmp); |
| 9023 |
tcg_gen_andi_i32(tmp2, tmp2, 0xffff0000);
|
| 9024 |
} |
| 9025 |
tcg_gen_or_i32(tmp, tmp, tmp2); |
| 9026 |
tcg_temp_free_i32(tmp2); |
| 9027 |
store_reg(s, rd, tmp); |
| 9028 |
} else {
|
| 9029 |
/* Data processing register constant shift. */
|
| 9030 |
if (rn == 15) { |
| 9031 |
tmp = tcg_temp_new_i32(); |
| 9032 |
tcg_gen_movi_i32(tmp, 0);
|
| 9033 |
} else {
|
| 9034 |
tmp = load_reg(s, rn); |
| 9035 |
} |
| 9036 |
tmp2 = load_reg(s, rm); |
| 9037 |
|
| 9038 |
shiftop = (insn >> 4) & 3; |
| 9039 |
shift = ((insn >> 6) & 3) | ((insn >> 10) & 0x1c); |
| 9040 |
conds = (insn & (1 << 20)) != 0; |
| 9041 |
logic_cc = (conds && thumb2_logic_op(op)); |
| 9042 |
gen_arm_shift_im(tmp2, shiftop, shift, logic_cc); |
| 9043 |
if (gen_thumb2_data_op(s, op, conds, 0, tmp, tmp2)) |
| 9044 |
goto illegal_op;
|
| 9045 |
tcg_temp_free_i32(tmp2); |
| 9046 |
if (rd != 15) { |
| 9047 |
store_reg(s, rd, tmp); |
| 9048 |
} else {
|
| 9049 |
tcg_temp_free_i32(tmp); |
| 9050 |
} |
| 9051 |
} |
| 9052 |
break;
|
| 9053 |
case 13: /* Misc data processing. */ |
| 9054 |
op = ((insn >> 22) & 6) | ((insn >> 7) & 1); |
| 9055 |
if (op < 4 && (insn & 0xf000) != 0xf000) |
| 9056 |
goto illegal_op;
|
| 9057 |
switch (op) {
|
| 9058 |
case 0: /* Register controlled shift. */ |
| 9059 |
tmp = load_reg(s, rn); |
| 9060 |
tmp2 = load_reg(s, rm); |
| 9061 |
if ((insn & 0x70) != 0) |
| 9062 |
goto illegal_op;
|
| 9063 |
op = (insn >> 21) & 3; |
| 9064 |
logic_cc = (insn & (1 << 20)) != 0; |
| 9065 |
gen_arm_shift_reg(tmp, op, tmp2, logic_cc); |
| 9066 |
if (logic_cc)
|
| 9067 |
gen_logic_CC(tmp); |
| 9068 |
store_reg_bx(env, s, rd, tmp); |
| 9069 |
break;
|
| 9070 |
case 1: /* Sign/zero extend. */ |
| 9071 |
tmp = load_reg(s, rm); |
| 9072 |
shift = (insn >> 4) & 3; |
| 9073 |
/* ??? In many cases it's not necessary to do a
|
| 9074 |
rotate, a shift is sufficient. */
|
| 9075 |
if (shift != 0) |
| 9076 |
tcg_gen_rotri_i32(tmp, tmp, shift * 8);
|
| 9077 |
op = (insn >> 20) & 7; |
| 9078 |
switch (op) {
|
| 9079 |
case 0: gen_sxth(tmp); break; |
| 9080 |
case 1: gen_uxth(tmp); break; |
| 9081 |
case 2: gen_sxtb16(tmp); break; |
| 9082 |
case 3: gen_uxtb16(tmp); break; |
| 9083 |
case 4: gen_sxtb(tmp); break; |
| 9084 |
case 5: gen_uxtb(tmp); break; |
| 9085 |
default: goto illegal_op; |
| 9086 |
} |
| 9087 |
if (rn != 15) { |
| 9088 |
tmp2 = load_reg(s, rn); |
| 9089 |
if ((op >> 1) == 1) { |
| 9090 |
gen_add16(tmp, tmp2); |
| 9091 |
} else {
|
| 9092 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
| 9093 |
tcg_temp_free_i32(tmp2); |
| 9094 |
} |
| 9095 |
} |
| 9096 |
store_reg(s, rd, tmp); |
| 9097 |
break;
|
| 9098 |
case 2: /* SIMD add/subtract. */ |
| 9099 |
op = (insn >> 20) & 7; |
| 9100 |
shift = (insn >> 4) & 7; |
| 9101 |
if ((op & 3) == 3 || (shift & 3) == 3) |
| 9102 |
goto illegal_op;
|
| 9103 |
tmp = load_reg(s, rn); |
| 9104 |
tmp2 = load_reg(s, rm); |
| 9105 |
gen_thumb2_parallel_addsub(op, shift, tmp, tmp2); |
| 9106 |
tcg_temp_free_i32(tmp2); |
| 9107 |
store_reg(s, rd, tmp); |
| 9108 |
break;
|
| 9109 |
case 3: /* Other data processing. */ |
| 9110 |
op = ((insn >> 17) & 0x38) | ((insn >> 4) & 7); |
| 9111 |
if (op < 4) { |
| 9112 |
/* Saturating add/subtract. */
|
| 9113 |
tmp = load_reg(s, rn); |
| 9114 |
tmp2 = load_reg(s, rm); |
| 9115 |
if (op & 1) |
| 9116 |
gen_helper_double_saturate(tmp, cpu_env, tmp); |
| 9117 |
if (op & 2) |
| 9118 |
gen_helper_sub_saturate(tmp, cpu_env, tmp2, tmp); |
| 9119 |
else
|
| 9120 |
gen_helper_add_saturate(tmp, cpu_env, tmp, tmp2); |
| 9121 |
tcg_temp_free_i32(tmp2); |
| 9122 |
} else {
|
| 9123 |
tmp = load_reg(s, rn); |
| 9124 |
switch (op) {
|
| 9125 |
case 0x0a: /* rbit */ |
| 9126 |
gen_helper_rbit(tmp, tmp); |
| 9127 |
break;
|
| 9128 |
case 0x08: /* rev */ |
| 9129 |
tcg_gen_bswap32_i32(tmp, tmp); |
| 9130 |
break;
|
| 9131 |
case 0x09: /* rev16 */ |
| 9132 |
gen_rev16(tmp); |
| 9133 |
break;
|
| 9134 |
case 0x0b: /* revsh */ |
| 9135 |
gen_revsh(tmp); |
| 9136 |
break;
|
| 9137 |
case 0x10: /* sel */ |
| 9138 |
tmp2 = load_reg(s, rm); |
| 9139 |
tmp3 = tcg_temp_new_i32(); |
| 9140 |
tcg_gen_ld_i32(tmp3, cpu_env, offsetof(CPUARMState, GE)); |
| 9141 |
gen_helper_sel_flags(tmp, tmp3, tmp, tmp2); |
| 9142 |
tcg_temp_free_i32(tmp3); |
| 9143 |
tcg_temp_free_i32(tmp2); |
| 9144 |
break;
|
| 9145 |
case 0x18: /* clz */ |
| 9146 |
gen_helper_clz(tmp, tmp); |
| 9147 |
break;
|
| 9148 |
default:
|
| 9149 |
goto illegal_op;
|
| 9150 |
} |
| 9151 |
} |
| 9152 |
store_reg(s, rd, tmp); |
| 9153 |
break;
|
| 9154 |
case 4: case 5: /* 32-bit multiply. Sum of absolute differences. */ |
| 9155 |
op = (insn >> 4) & 0xf; |
| 9156 |
tmp = load_reg(s, rn); |
| 9157 |
tmp2 = load_reg(s, rm); |
| 9158 |
switch ((insn >> 20) & 7) { |
| 9159 |
case 0: /* 32 x 32 -> 32 */ |
| 9160 |
tcg_gen_mul_i32(tmp, tmp, tmp2); |
| 9161 |
tcg_temp_free_i32(tmp2); |
| 9162 |
if (rs != 15) { |
| 9163 |
tmp2 = load_reg(s, rs); |
| 9164 |
if (op)
|
| 9165 |
tcg_gen_sub_i32(tmp, tmp2, tmp); |
| 9166 |
else
|
| 9167 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
| 9168 |
tcg_temp_free_i32(tmp2); |
| 9169 |
} |
| 9170 |
break;
|
| 9171 |
case 1: /* 16 x 16 -> 32 */ |
| 9172 |
gen_mulxy(tmp, tmp2, op & 2, op & 1); |
| 9173 |
tcg_temp_free_i32(tmp2); |
| 9174 |
if (rs != 15) { |
| 9175 |
tmp2 = load_reg(s, rs); |
| 9176 |
gen_helper_add_setq(tmp, cpu_env, tmp, tmp2); |
| 9177 |
tcg_temp_free_i32(tmp2); |
| 9178 |
} |
| 9179 |
break;
|
| 9180 |
case 2: /* Dual multiply add. */ |
| 9181 |
case 4: /* Dual multiply subtract. */ |
| 9182 |
if (op)
|
| 9183 |
gen_swap_half(tmp2); |
| 9184 |
gen_smul_dual(tmp, tmp2); |
| 9185 |
if (insn & (1 << 22)) { |
| 9186 |
/* This subtraction cannot overflow. */
|
| 9187 |
tcg_gen_sub_i32(tmp, tmp, tmp2); |
| 9188 |
} else {
|
| 9189 |
/* This addition cannot overflow 32 bits;
|
| 9190 |
* however it may overflow considered as a signed
|
| 9191 |
* operation, in which case we must set the Q flag.
|
| 9192 |
*/
|
| 9193 |
gen_helper_add_setq(tmp, cpu_env, tmp, tmp2); |
| 9194 |
} |
| 9195 |
tcg_temp_free_i32(tmp2); |
| 9196 |
if (rs != 15) |
| 9197 |
{
|
| 9198 |
tmp2 = load_reg(s, rs); |
| 9199 |
gen_helper_add_setq(tmp, cpu_env, tmp, tmp2); |
| 9200 |
tcg_temp_free_i32(tmp2); |
| 9201 |
} |
| 9202 |
break;
|
| 9203 |
case 3: /* 32 * 16 -> 32msb */ |
| 9204 |
if (op)
|
| 9205 |
tcg_gen_sari_i32(tmp2, tmp2, 16);
|
| 9206 |
else
|
| 9207 |
gen_sxth(tmp2); |
| 9208 |
tmp64 = gen_muls_i64_i32(tmp, tmp2); |
| 9209 |
tcg_gen_shri_i64(tmp64, tmp64, 16);
|
| 9210 |
tmp = tcg_temp_new_i32(); |
| 9211 |
tcg_gen_trunc_i64_i32(tmp, tmp64); |
| 9212 |
tcg_temp_free_i64(tmp64); |
| 9213 |
if (rs != 15) |
| 9214 |
{
|
| 9215 |
tmp2 = load_reg(s, rs); |
| 9216 |
gen_helper_add_setq(tmp, cpu_env, tmp, tmp2); |
| 9217 |
tcg_temp_free_i32(tmp2); |
| 9218 |
} |
| 9219 |
break;
|
| 9220 |
case 5: case 6: /* 32 * 32 -> 32msb (SMMUL, SMMLA, SMMLS) */ |
| 9221 |
tmp64 = gen_muls_i64_i32(tmp, tmp2); |
| 9222 |
if (rs != 15) { |
| 9223 |
tmp = load_reg(s, rs); |
| 9224 |
if (insn & (1 << 20)) { |
| 9225 |
tmp64 = gen_addq_msw(tmp64, tmp); |
| 9226 |
} else {
|
| 9227 |
tmp64 = gen_subq_msw(tmp64, tmp); |
| 9228 |
} |
| 9229 |
} |
| 9230 |
if (insn & (1 << 4)) { |
| 9231 |
tcg_gen_addi_i64(tmp64, tmp64, 0x80000000u);
|
| 9232 |
} |
| 9233 |
tcg_gen_shri_i64(tmp64, tmp64, 32);
|
| 9234 |
tmp = tcg_temp_new_i32(); |
| 9235 |
tcg_gen_trunc_i64_i32(tmp, tmp64); |
| 9236 |
tcg_temp_free_i64(tmp64); |
| 9237 |
break;
|
| 9238 |
case 7: /* Unsigned sum of absolute differences. */ |
| 9239 |
gen_helper_usad8(tmp, tmp, tmp2); |
| 9240 |
tcg_temp_free_i32(tmp2); |
| 9241 |
if (rs != 15) { |
| 9242 |
tmp2 = load_reg(s, rs); |
| 9243 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
| 9244 |
tcg_temp_free_i32(tmp2); |
| 9245 |
} |
| 9246 |
break;
|
| 9247 |
} |
| 9248 |
store_reg(s, rd, tmp); |
| 9249 |
break;
|
| 9250 |
case 6: case 7: /* 64-bit multiply, Divide. */ |
| 9251 |
op = ((insn >> 4) & 0xf) | ((insn >> 16) & 0x70); |
| 9252 |
tmp = load_reg(s, rn); |
| 9253 |
tmp2 = load_reg(s, rm); |
| 9254 |
if ((op & 0x50) == 0x10) { |
| 9255 |
/* sdiv, udiv */
|
| 9256 |
if (!arm_feature(env, ARM_FEATURE_THUMB_DIV)) {
|
| 9257 |
goto illegal_op;
|
| 9258 |
} |
| 9259 |
if (op & 0x20) |
| 9260 |
gen_helper_udiv(tmp, tmp, tmp2); |
| 9261 |
else
|
| 9262 |
gen_helper_sdiv(tmp, tmp, tmp2); |
| 9263 |
tcg_temp_free_i32(tmp2); |
| 9264 |
store_reg(s, rd, tmp); |
| 9265 |
} else if ((op & 0xe) == 0xc) { |
| 9266 |
/* Dual multiply accumulate long. */
|
| 9267 |
if (op & 1) |
| 9268 |
gen_swap_half(tmp2); |
| 9269 |
gen_smul_dual(tmp, tmp2); |
| 9270 |
if (op & 0x10) { |
| 9271 |
tcg_gen_sub_i32(tmp, tmp, tmp2); |
| 9272 |
} else {
|
| 9273 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
| 9274 |
} |
| 9275 |
tcg_temp_free_i32(tmp2); |
| 9276 |
/* BUGFIX */
|
| 9277 |
tmp64 = tcg_temp_new_i64(); |
| 9278 |
tcg_gen_ext_i32_i64(tmp64, tmp); |
| 9279 |
tcg_temp_free_i32(tmp); |
| 9280 |
gen_addq(s, tmp64, rs, rd); |
| 9281 |
gen_storeq_reg(s, rs, rd, tmp64); |
| 9282 |
tcg_temp_free_i64(tmp64); |
| 9283 |
} else {
|
| 9284 |
if (op & 0x20) { |
| 9285 |
/* Unsigned 64-bit multiply */
|
| 9286 |
tmp64 = gen_mulu_i64_i32(tmp, tmp2); |
| 9287 |
} else {
|
| 9288 |
if (op & 8) { |
| 9289 |
/* smlalxy */
|
| 9290 |
gen_mulxy(tmp, tmp2, op & 2, op & 1); |
| 9291 |
tcg_temp_free_i32(tmp2); |
| 9292 |
tmp64 = tcg_temp_new_i64(); |
| 9293 |
tcg_gen_ext_i32_i64(tmp64, tmp); |
| 9294 |
tcg_temp_free_i32(tmp); |
| 9295 |
} else {
|
| 9296 |
/* Signed 64-bit multiply */
|
| 9297 |
tmp64 = gen_muls_i64_i32(tmp, tmp2); |
| 9298 |
} |
| 9299 |
} |
| 9300 |
if (op & 4) { |
| 9301 |
/* umaal */
|
| 9302 |
gen_addq_lo(s, tmp64, rs); |
| 9303 |
gen_addq_lo(s, tmp64, rd); |
| 9304 |
} else if (op & 0x40) { |
| 9305 |
/* 64-bit accumulate. */
|
| 9306 |
gen_addq(s, tmp64, rs, rd); |
| 9307 |
} |
| 9308 |
gen_storeq_reg(s, rs, rd, tmp64); |
| 9309 |
tcg_temp_free_i64(tmp64); |
| 9310 |
} |
| 9311 |
break;
|
| 9312 |
} |
| 9313 |
break;
|
| 9314 |
case 6: case 7: case 14: case 15: |
| 9315 |
/* Coprocessor. */
|
| 9316 |
if (((insn >> 24) & 3) == 3) { |
| 9317 |
/* Translate into the equivalent ARM encoding. */
|
| 9318 |
insn = (insn & 0xe2ffffff) | ((insn & (1 << 28)) >> 4) | (1 << 28); |
| 9319 |
if (disas_neon_data_insn(env, s, insn))
|
| 9320 |
goto illegal_op;
|
| 9321 |
} else if (((insn >> 8) & 0xe) == 10) { |
| 9322 |
if (disas_vfp_insn(env, s, insn)) {
|
| 9323 |
goto illegal_op;
|
| 9324 |
} |
| 9325 |
} else {
|
| 9326 |
if (insn & (1 << 28)) |
| 9327 |
goto illegal_op;
|
| 9328 |
if (disas_coproc_insn (env, s, insn))
|
| 9329 |
goto illegal_op;
|
| 9330 |
} |
| 9331 |
break;
|
| 9332 |
case 8: case 9: case 10: case 11: |
| 9333 |
if (insn & (1 << 15)) { |
| 9334 |
/* Branches, misc control. */
|
| 9335 |
if (insn & 0x5000) { |
| 9336 |
/* Unconditional branch. */
|
| 9337 |
/* signextend(hw1[10:0]) -> offset[:12]. */
|
| 9338 |
offset = ((int32_t)insn << 5) >> 9 & ~(int32_t)0xfff; |
| 9339 |
/* hw1[10:0] -> offset[11:1]. */
|
| 9340 |
offset |= (insn & 0x7ff) << 1; |
| 9341 |
/* (~hw2[13, 11] ^ offset[24]) -> offset[23,22]
|
| 9342 |
offset[24:22] already have the same value because of the
|
| 9343 |
sign extension above. */
|
| 9344 |
offset ^= ((~insn) & (1 << 13)) << 10; |
| 9345 |
offset ^= ((~insn) & (1 << 11)) << 11; |
| 9346 |
|
| 9347 |
if (insn & (1 << 14)) { |
| 9348 |
/* Branch and link. */
|
| 9349 |
tcg_gen_movi_i32(cpu_R[14], s->pc | 1); |
| 9350 |
} |
| 9351 |
|
| 9352 |
offset += s->pc; |
| 9353 |
if (insn & (1 << 12)) { |
| 9354 |
/* b/bl */
|
| 9355 |
gen_jmp(s, offset); |
| 9356 |
} else {
|
| 9357 |
/* blx */
|
| 9358 |
offset &= ~(uint32_t)2;
|
| 9359 |
/* thumb2 bx, no need to check */
|
| 9360 |
gen_bx_im(s, offset); |
| 9361 |
} |
| 9362 |
} else if (((insn >> 23) & 7) == 7) { |
| 9363 |
/* Misc control */
|
| 9364 |
if (insn & (1 << 13)) |
| 9365 |
goto illegal_op;
|
| 9366 |
|
| 9367 |
if (insn & (1 << 26)) { |
| 9368 |
/* Secure monitor call (v6Z) */
|
| 9369 |
qemu_log_mask(LOG_UNIMP, |
| 9370 |
"arm: unimplemented secure monitor call\n");
|
| 9371 |
goto illegal_op; /* not implemented. */ |
| 9372 |
} else {
|
| 9373 |
op = (insn >> 20) & 7; |
| 9374 |
switch (op) {
|
| 9375 |
case 0: /* msr cpsr. */ |
| 9376 |
if (IS_M(env)) {
|
| 9377 |
tmp = load_reg(s, rn); |
| 9378 |
addr = tcg_const_i32(insn & 0xff);
|
| 9379 |
gen_helper_v7m_msr(cpu_env, addr, tmp); |
| 9380 |
tcg_temp_free_i32(addr); |
| 9381 |
tcg_temp_free_i32(tmp); |
| 9382 |
gen_lookup_tb(s); |
| 9383 |
break;
|
| 9384 |
} |
| 9385 |
/* fall through */
|
| 9386 |
case 1: /* msr spsr. */ |
| 9387 |
if (IS_M(env))
|
| 9388 |
goto illegal_op;
|
| 9389 |
tmp = load_reg(s, rn); |
| 9390 |
if (gen_set_psr(s,
|
| 9391 |
msr_mask(env, s, (insn >> 8) & 0xf, op == 1), |
| 9392 |
op == 1, tmp))
|
| 9393 |
goto illegal_op;
|
| 9394 |
break;
|
| 9395 |
case 2: /* cps, nop-hint. */ |
| 9396 |
if (((insn >> 8) & 7) == 0) { |
| 9397 |
gen_nop_hint(s, insn & 0xff);
|
| 9398 |
} |
| 9399 |
/* Implemented as NOP in user mode. */
|
| 9400 |
if (IS_USER(s))
|
| 9401 |
break;
|
| 9402 |
offset = 0;
|
| 9403 |
imm = 0;
|
| 9404 |
if (insn & (1 << 10)) { |
| 9405 |
if (insn & (1 << 7)) |
| 9406 |
offset |= CPSR_A; |
| 9407 |
if (insn & (1 << 6)) |
| 9408 |
offset |= CPSR_I; |
| 9409 |
if (insn & (1 << 5)) |
| 9410 |
offset |= CPSR_F; |
| 9411 |
if (insn & (1 << 9)) |
| 9412 |
imm = CPSR_A | CPSR_I | CPSR_F; |
| 9413 |
} |
| 9414 |
if (insn & (1 << 8)) { |
| 9415 |
offset |= 0x1f;
|
| 9416 |
imm |= (insn & 0x1f);
|
| 9417 |
} |
| 9418 |
if (offset) {
|
| 9419 |
gen_set_psr_im(s, offset, 0, imm);
|
| 9420 |
} |
| 9421 |
break;
|
| 9422 |
case 3: /* Special control operations. */ |
| 9423 |
ARCH(7);
|
| 9424 |
op = (insn >> 4) & 0xf; |
| 9425 |
switch (op) {
|
| 9426 |
case 2: /* clrex */ |
| 9427 |
gen_clrex(s); |
| 9428 |
break;
|
| 9429 |
case 4: /* dsb */ |
| 9430 |
case 5: /* dmb */ |
| 9431 |
case 6: /* isb */ |
| 9432 |
/* These execute as NOPs. */
|
| 9433 |
break;
|
| 9434 |
default:
|
| 9435 |
goto illegal_op;
|
| 9436 |
} |
| 9437 |
break;
|
| 9438 |
case 4: /* bxj */ |
| 9439 |
/* Trivial implementation equivalent to bx. */
|
| 9440 |
tmp = load_reg(s, rn); |
| 9441 |
gen_bx(s, tmp); |
| 9442 |
break;
|
| 9443 |
case 5: /* Exception return. */ |
| 9444 |
if (IS_USER(s)) {
|
| 9445 |
goto illegal_op;
|
| 9446 |
} |
| 9447 |
if (rn != 14 || rd != 15) { |
| 9448 |
goto illegal_op;
|
| 9449 |
} |
| 9450 |
tmp = load_reg(s, rn); |
| 9451 |
tcg_gen_subi_i32(tmp, tmp, insn & 0xff);
|
| 9452 |
gen_exception_return(s, tmp); |
| 9453 |
break;
|
| 9454 |
case 6: /* mrs cpsr. */ |
| 9455 |
tmp = tcg_temp_new_i32(); |
| 9456 |
if (IS_M(env)) {
|
| 9457 |
addr = tcg_const_i32(insn & 0xff);
|
| 9458 |
gen_helper_v7m_mrs(tmp, cpu_env, addr); |
| 9459 |
tcg_temp_free_i32(addr); |
| 9460 |
} else {
|
| 9461 |
gen_helper_cpsr_read(tmp, cpu_env); |
| 9462 |
} |
| 9463 |
store_reg(s, rd, tmp); |
| 9464 |
break;
|
| 9465 |
case 7: /* mrs spsr. */ |
| 9466 |
/* Not accessible in user mode. */
|
| 9467 |
if (IS_USER(s) || IS_M(env))
|
| 9468 |
goto illegal_op;
|
| 9469 |
tmp = load_cpu_field(spsr); |
| 9470 |
store_reg(s, rd, tmp); |
| 9471 |
break;
|
| 9472 |
} |
| 9473 |
} |
| 9474 |
} else {
|
| 9475 |
/* Conditional branch. */
|
| 9476 |
op = (insn >> 22) & 0xf; |
| 9477 |
/* Generate a conditional jump to next instruction. */
|
| 9478 |
s->condlabel = gen_new_label(); |
| 9479 |
arm_gen_test_cc(op ^ 1, s->condlabel);
|
| 9480 |
s->condjmp = 1;
|
| 9481 |
|
| 9482 |
/* offset[11:1] = insn[10:0] */
|
| 9483 |
offset = (insn & 0x7ff) << 1; |
| 9484 |
/* offset[17:12] = insn[21:16]. */
|
| 9485 |
offset |= (insn & 0x003f0000) >> 4; |
| 9486 |
/* offset[31:20] = insn[26]. */
|
| 9487 |
offset |= ((int32_t)((insn << 5) & 0x80000000)) >> 11; |
| 9488 |
/* offset[18] = insn[13]. */
|
| 9489 |
offset |= (insn & (1 << 13)) << 5; |
| 9490 |
/* offset[19] = insn[11]. */
|
| 9491 |
offset |= (insn & (1 << 11)) << 8; |
| 9492 |
|
| 9493 |
/* jump to the offset */
|
| 9494 |
gen_jmp(s, s->pc + offset); |
| 9495 |
} |
| 9496 |
} else {
|
| 9497 |
/* Data processing immediate. */
|
| 9498 |
if (insn & (1 << 25)) { |
| 9499 |
if (insn & (1 << 24)) { |
| 9500 |
if (insn & (1 << 20)) |
| 9501 |
goto illegal_op;
|
| 9502 |
/* Bitfield/Saturate. */
|
| 9503 |
op = (insn >> 21) & 7; |
| 9504 |
imm = insn & 0x1f;
|
| 9505 |
shift = ((insn >> 6) & 3) | ((insn >> 10) & 0x1c); |
| 9506 |
if (rn == 15) { |
| 9507 |
tmp = tcg_temp_new_i32(); |
| 9508 |
tcg_gen_movi_i32(tmp, 0);
|
| 9509 |
} else {
|
| 9510 |
tmp = load_reg(s, rn); |
| 9511 |
} |
| 9512 |
switch (op) {
|
| 9513 |
case 2: /* Signed bitfield extract. */ |
| 9514 |
imm++; |
| 9515 |
if (shift + imm > 32) |
| 9516 |
goto illegal_op;
|
| 9517 |
if (imm < 32) |
| 9518 |
gen_sbfx(tmp, shift, imm); |
| 9519 |
break;
|
| 9520 |
case 6: /* Unsigned bitfield extract. */ |
| 9521 |
imm++; |
| 9522 |
if (shift + imm > 32) |
| 9523 |
goto illegal_op;
|
| 9524 |
if (imm < 32) |
| 9525 |
gen_ubfx(tmp, shift, (1u << imm) - 1); |
| 9526 |
break;
|
| 9527 |
case 3: /* Bitfield insert/clear. */ |
| 9528 |
if (imm < shift)
|
| 9529 |
goto illegal_op;
|
| 9530 |
imm = imm + 1 - shift;
|
| 9531 |
if (imm != 32) { |
| 9532 |
tmp2 = load_reg(s, rd); |
| 9533 |
tcg_gen_deposit_i32(tmp, tmp2, tmp, shift, imm); |
| 9534 |
tcg_temp_free_i32(tmp2); |
| 9535 |
} |
| 9536 |
break;
|
| 9537 |
case 7: |
| 9538 |
goto illegal_op;
|
| 9539 |
default: /* Saturate. */ |
| 9540 |
if (shift) {
|
| 9541 |
if (op & 1) |
| 9542 |
tcg_gen_sari_i32(tmp, tmp, shift); |
| 9543 |
else
|
| 9544 |
tcg_gen_shli_i32(tmp, tmp, shift); |
| 9545 |
} |
| 9546 |
tmp2 = tcg_const_i32(imm); |
| 9547 |
if (op & 4) { |
| 9548 |
/* Unsigned. */
|
| 9549 |
if ((op & 1) && shift == 0) |
| 9550 |
gen_helper_usat16(tmp, cpu_env, tmp, tmp2); |
| 9551 |
else
|
| 9552 |
gen_helper_usat(tmp, cpu_env, tmp, tmp2); |
| 9553 |
} else {
|
| 9554 |
/* Signed. */
|
| 9555 |
if ((op & 1) && shift == 0) |
| 9556 |
gen_helper_ssat16(tmp, cpu_env, tmp, tmp2); |
| 9557 |
else
|
| 9558 |
gen_helper_ssat(tmp, cpu_env, tmp, tmp2); |
| 9559 |
} |
| 9560 |
tcg_temp_free_i32(tmp2); |
| 9561 |
break;
|
| 9562 |
} |
| 9563 |
store_reg(s, rd, tmp); |
| 9564 |
} else {
|
| 9565 |
imm = ((insn & 0x04000000) >> 15) |
| 9566 |
| ((insn & 0x7000) >> 4) | (insn & 0xff); |
| 9567 |
if (insn & (1 << 22)) { |
| 9568 |
/* 16-bit immediate. */
|
| 9569 |
imm |= (insn >> 4) & 0xf000; |
| 9570 |
if (insn & (1 << 23)) { |
| 9571 |
/* movt */
|
| 9572 |
tmp = load_reg(s, rd); |
| 9573 |
tcg_gen_ext16u_i32(tmp, tmp); |
| 9574 |
tcg_gen_ori_i32(tmp, tmp, imm << 16);
|
| 9575 |
} else {
|
| 9576 |
/* movw */
|
| 9577 |
tmp = tcg_temp_new_i32(); |
| 9578 |
tcg_gen_movi_i32(tmp, imm); |
| 9579 |
} |
| 9580 |
} else {
|
| 9581 |
/* Add/sub 12-bit immediate. */
|
| 9582 |
if (rn == 15) { |
| 9583 |
offset = s->pc & ~(uint32_t)3;
|
| 9584 |
if (insn & (1 << 23)) |
| 9585 |
offset -= imm; |
| 9586 |
else
|
| 9587 |
offset += imm; |
| 9588 |
tmp = tcg_temp_new_i32(); |
| 9589 |
tcg_gen_movi_i32(tmp, offset); |
| 9590 |
} else {
|
| 9591 |
tmp = load_reg(s, rn); |
| 9592 |
if (insn & (1 << 23)) |
| 9593 |
tcg_gen_subi_i32(tmp, tmp, imm); |
| 9594 |
else
|
| 9595 |
tcg_gen_addi_i32(tmp, tmp, imm); |
| 9596 |
} |
| 9597 |
} |
| 9598 |
store_reg(s, rd, tmp); |
| 9599 |
} |
| 9600 |
} else {
|
| 9601 |
int shifter_out = 0; |
| 9602 |
/* modified 12-bit immediate. */
|
| 9603 |
shift = ((insn & 0x04000000) >> 23) | ((insn & 0x7000) >> 12); |
| 9604 |
imm = (insn & 0xff);
|
| 9605 |
switch (shift) {
|
| 9606 |
case 0: /* XY */ |
| 9607 |
/* Nothing to do. */
|
| 9608 |
break;
|
| 9609 |
case 1: /* 00XY00XY */ |
| 9610 |
imm |= imm << 16;
|
| 9611 |
break;
|
| 9612 |
case 2: /* XY00XY00 */ |
| 9613 |
imm |= imm << 16;
|
| 9614 |
imm <<= 8;
|
| 9615 |
break;
|
| 9616 |
case 3: /* XYXYXYXY */ |
| 9617 |
imm |= imm << 16;
|
| 9618 |
imm |= imm << 8;
|
| 9619 |
break;
|
| 9620 |
default: /* Rotated constant. */ |
| 9621 |
shift = (shift << 1) | (imm >> 7); |
| 9622 |
imm |= 0x80;
|
| 9623 |
imm = imm << (32 - shift);
|
| 9624 |
shifter_out = 1;
|
| 9625 |
break;
|
| 9626 |
} |
| 9627 |
tmp2 = tcg_temp_new_i32(); |
| 9628 |
tcg_gen_movi_i32(tmp2, imm); |
| 9629 |
rn = (insn >> 16) & 0xf; |
| 9630 |
if (rn == 15) { |
| 9631 |
tmp = tcg_temp_new_i32(); |
| 9632 |
tcg_gen_movi_i32(tmp, 0);
|
| 9633 |
} else {
|
| 9634 |
tmp = load_reg(s, rn); |
| 9635 |
} |
| 9636 |
op = (insn >> 21) & 0xf; |
| 9637 |
if (gen_thumb2_data_op(s, op, (insn & (1 << 20)) != 0, |
| 9638 |
shifter_out, tmp, tmp2)) |
| 9639 |
goto illegal_op;
|
| 9640 |
tcg_temp_free_i32(tmp2); |
| 9641 |
rd = (insn >> 8) & 0xf; |
| 9642 |
if (rd != 15) { |
| 9643 |
store_reg(s, rd, tmp); |
| 9644 |
} else {
|
| 9645 |
tcg_temp_free_i32(tmp); |
| 9646 |
} |
| 9647 |
} |
| 9648 |
} |
| 9649 |
break;
|
| 9650 |
case 12: /* Load/store single data item. */ |
| 9651 |
{
|
| 9652 |
int postinc = 0; |
| 9653 |
int writeback = 0; |
| 9654 |
int user;
|
| 9655 |
if ((insn & 0x01100000) == 0x01000000) { |
| 9656 |
if (disas_neon_ls_insn(env, s, insn))
|
| 9657 |
goto illegal_op;
|
| 9658 |
break;
|
| 9659 |
} |
| 9660 |
op = ((insn >> 21) & 3) | ((insn >> 22) & 4); |
| 9661 |
if (rs == 15) { |
| 9662 |
if (!(insn & (1 << 20))) { |
| 9663 |
goto illegal_op;
|
| 9664 |
} |
| 9665 |
if (op != 2) { |
| 9666 |
/* Byte or halfword load space with dest == r15 : memory hints.
|
| 9667 |
* Catch them early so we don't emit pointless addressing code.
|
| 9668 |
* This space is a mix of:
|
| 9669 |
* PLD/PLDW/PLI, which we implement as NOPs (note that unlike
|
| 9670 |
* the ARM encodings, PLDW space doesn't UNDEF for non-v7MP
|
| 9671 |
* cores)
|
| 9672 |
* unallocated hints, which must be treated as NOPs
|
| 9673 |
* UNPREDICTABLE space, which we NOP or UNDEF depending on
|
| 9674 |
* which is easiest for the decoding logic
|
| 9675 |
* Some space which must UNDEF
|
| 9676 |
*/
|
| 9677 |
int op1 = (insn >> 23) & 3; |
| 9678 |
int op2 = (insn >> 6) & 0x3f; |
| 9679 |
if (op & 2) { |
| 9680 |
goto illegal_op;
|
| 9681 |
} |
| 9682 |
if (rn == 15) { |
| 9683 |
/* UNPREDICTABLE, unallocated hint or
|
| 9684 |
* PLD/PLDW/PLI (literal)
|
| 9685 |
*/
|
| 9686 |
return 0; |
| 9687 |
} |
| 9688 |
if (op1 & 1) { |
| 9689 |
return 0; /* PLD/PLDW/PLI or unallocated hint */ |
| 9690 |
} |
| 9691 |
if ((op2 == 0) || ((op2 & 0x3c) == 0x30)) { |
| 9692 |
return 0; /* PLD/PLDW/PLI or unallocated hint */ |
| 9693 |
} |
| 9694 |
/* UNDEF space, or an UNPREDICTABLE */
|
| 9695 |
return 1; |
| 9696 |
} |
| 9697 |
} |
| 9698 |
user = IS_USER(s); |
| 9699 |
if (rn == 15) { |
| 9700 |
addr = tcg_temp_new_i32(); |
| 9701 |
/* PC relative. */
|
| 9702 |
/* s->pc has already been incremented by 4. */
|
| 9703 |
imm = s->pc & 0xfffffffc;
|
| 9704 |
if (insn & (1 << 23)) |
| 9705 |
imm += insn & 0xfff;
|
| 9706 |
else
|
| 9707 |
imm -= insn & 0xfff;
|
| 9708 |
tcg_gen_movi_i32(addr, imm); |
| 9709 |
} else {
|
| 9710 |
addr = load_reg(s, rn); |
| 9711 |
if (insn & (1 << 23)) { |
| 9712 |
/* Positive offset. */
|
| 9713 |
imm = insn & 0xfff;
|
| 9714 |
tcg_gen_addi_i32(addr, addr, imm); |
| 9715 |
} else {
|
| 9716 |
imm = insn & 0xff;
|
| 9717 |
switch ((insn >> 8) & 0xf) { |
| 9718 |
case 0x0: /* Shifted Register. */ |
| 9719 |
shift = (insn >> 4) & 0xf; |
| 9720 |
if (shift > 3) { |
| 9721 |
tcg_temp_free_i32(addr); |
| 9722 |
goto illegal_op;
|
| 9723 |
} |
| 9724 |
tmp = load_reg(s, rm); |
| 9725 |
if (shift)
|
| 9726 |
tcg_gen_shli_i32(tmp, tmp, shift); |
| 9727 |
tcg_gen_add_i32(addr, addr, tmp); |
| 9728 |
tcg_temp_free_i32(tmp); |
| 9729 |
break;
|
| 9730 |
case 0xc: /* Negative offset. */ |
| 9731 |
tcg_gen_addi_i32(addr, addr, -imm); |
| 9732 |
break;
|
| 9733 |
case 0xe: /* User privilege. */ |
| 9734 |
tcg_gen_addi_i32(addr, addr, imm); |
| 9735 |
user = 1;
|
| 9736 |
break;
|
| 9737 |
case 0x9: /* Post-decrement. */ |
| 9738 |
imm = -imm; |
| 9739 |
/* Fall through. */
|
| 9740 |
case 0xb: /* Post-increment. */ |
| 9741 |
postinc = 1;
|
| 9742 |
writeback = 1;
|
| 9743 |
break;
|
| 9744 |
case 0xd: /* Pre-decrement. */ |
| 9745 |
imm = -imm; |
| 9746 |
/* Fall through. */
|
| 9747 |
case 0xf: /* Pre-increment. */ |
| 9748 |
tcg_gen_addi_i32(addr, addr, imm); |
| 9749 |
writeback = 1;
|
| 9750 |
break;
|
| 9751 |
default:
|
| 9752 |
tcg_temp_free_i32(addr); |
| 9753 |
goto illegal_op;
|
| 9754 |
} |
| 9755 |
} |
| 9756 |
} |
| 9757 |
if (insn & (1 << 20)) { |
| 9758 |
/* Load. */
|
| 9759 |
tmp = tcg_temp_new_i32(); |
| 9760 |
switch (op) {
|
| 9761 |
case 0: |
| 9762 |
gen_aa32_ld8u(tmp, addr, user); |
| 9763 |
break;
|
| 9764 |
case 4: |
| 9765 |
gen_aa32_ld8s(tmp, addr, user); |
| 9766 |
break;
|
| 9767 |
case 1: |
| 9768 |
gen_aa32_ld16u(tmp, addr, user); |
| 9769 |
break;
|
| 9770 |
case 5: |
| 9771 |
gen_aa32_ld16s(tmp, addr, user); |
| 9772 |
break;
|
| 9773 |
case 2: |
| 9774 |
gen_aa32_ld32u(tmp, addr, user); |
| 9775 |
break;
|
| 9776 |
default:
|
| 9777 |
tcg_temp_free_i32(tmp); |
| 9778 |
tcg_temp_free_i32(addr); |
| 9779 |
goto illegal_op;
|
| 9780 |
} |
| 9781 |
if (rs == 15) { |
| 9782 |
gen_bx(s, tmp); |
| 9783 |
} else {
|
| 9784 |
store_reg(s, rs, tmp); |
| 9785 |
} |
| 9786 |
} else {
|
| 9787 |
/* Store. */
|
| 9788 |
tmp = load_reg(s, rs); |
| 9789 |
switch (op) {
|
| 9790 |
case 0: |
| 9791 |
gen_aa32_st8(tmp, addr, user); |
| 9792 |
break;
|
| 9793 |
case 1: |
| 9794 |
gen_aa32_st16(tmp, addr, user); |
| 9795 |
break;
|
| 9796 |
case 2: |
| 9797 |
gen_aa32_st32(tmp, addr, user); |
| 9798 |
break;
|
| 9799 |
default:
|
| 9800 |
tcg_temp_free_i32(tmp); |
| 9801 |
tcg_temp_free_i32(addr); |
| 9802 |
goto illegal_op;
|
| 9803 |
} |
| 9804 |
tcg_temp_free_i32(tmp); |
| 9805 |
} |
| 9806 |
if (postinc)
|
| 9807 |
tcg_gen_addi_i32(addr, addr, imm); |
| 9808 |
if (writeback) {
|
| 9809 |
store_reg(s, rn, addr); |
| 9810 |
} else {
|
| 9811 |
tcg_temp_free_i32(addr); |
| 9812 |
} |
| 9813 |
} |
| 9814 |
break;
|
| 9815 |
default:
|
| 9816 |
goto illegal_op;
|
| 9817 |
} |
| 9818 |
return 0; |
| 9819 |
illegal_op:
|
| 9820 |
return 1; |
| 9821 |
} |
| 9822 |
|
| 9823 |
static void disas_thumb_insn(CPUARMState *env, DisasContext *s) |
| 9824 |
{
|
| 9825 |
uint32_t val, insn, op, rm, rn, rd, shift, cond; |
| 9826 |
int32_t offset; |
| 9827 |
int i;
|
| 9828 |
TCGv_i32 tmp; |
| 9829 |
TCGv_i32 tmp2; |
| 9830 |
TCGv_i32 addr; |
| 9831 |
|
| 9832 |
if (s->condexec_mask) {
|
| 9833 |
cond = s->condexec_cond; |
| 9834 |
if (cond != 0x0e) { /* Skip conditional when condition is AL. */ |
| 9835 |
s->condlabel = gen_new_label(); |
| 9836 |
arm_gen_test_cc(cond ^ 1, s->condlabel);
|
| 9837 |
s->condjmp = 1;
|
| 9838 |
} |
| 9839 |
} |
| 9840 |
|
| 9841 |
insn = arm_lduw_code(env, s->pc, s->bswap_code); |
| 9842 |
s->pc += 2;
|
| 9843 |
|
| 9844 |
switch (insn >> 12) { |
| 9845 |
case 0: case 1: |
| 9846 |
|
| 9847 |
rd = insn & 7;
|
| 9848 |
op = (insn >> 11) & 3; |
| 9849 |
if (op == 3) { |
| 9850 |
/* add/subtract */
|
| 9851 |
rn = (insn >> 3) & 7; |
| 9852 |
tmp = load_reg(s, rn); |
| 9853 |
if (insn & (1 << 10)) { |
| 9854 |
/* immediate */
|
| 9855 |
tmp2 = tcg_temp_new_i32(); |
| 9856 |
tcg_gen_movi_i32(tmp2, (insn >> 6) & 7); |
| 9857 |
} else {
|
| 9858 |
/* reg */
|
| 9859 |
rm = (insn >> 6) & 7; |
| 9860 |
tmp2 = load_reg(s, rm); |
| 9861 |
} |
| 9862 |
if (insn & (1 << 9)) { |
| 9863 |
if (s->condexec_mask)
|
| 9864 |
tcg_gen_sub_i32(tmp, tmp, tmp2); |
| 9865 |
else
|
| 9866 |
gen_sub_CC(tmp, tmp, tmp2); |
| 9867 |
} else {
|
| 9868 |
if (s->condexec_mask)
|
| 9869 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
| 9870 |
else
|
| 9871 |
gen_add_CC(tmp, tmp, tmp2); |
| 9872 |
} |
| 9873 |
tcg_temp_free_i32(tmp2); |
| 9874 |
store_reg(s, rd, tmp); |
| 9875 |
} else {
|
| 9876 |
/* shift immediate */
|
| 9877 |
rm = (insn >> 3) & 7; |
| 9878 |
shift = (insn >> 6) & 0x1f; |
| 9879 |
tmp = load_reg(s, rm); |
| 9880 |
gen_arm_shift_im(tmp, op, shift, s->condexec_mask == 0);
|
| 9881 |
if (!s->condexec_mask)
|
| 9882 |
gen_logic_CC(tmp); |
| 9883 |
store_reg(s, rd, tmp); |
| 9884 |
} |
| 9885 |
break;
|
| 9886 |
case 2: case 3: |
| 9887 |
/* arithmetic large immediate */
|
| 9888 |
op = (insn >> 11) & 3; |
| 9889 |
rd = (insn >> 8) & 0x7; |
| 9890 |
if (op == 0) { /* mov */ |
| 9891 |
tmp = tcg_temp_new_i32(); |
| 9892 |
tcg_gen_movi_i32(tmp, insn & 0xff);
|
| 9893 |
if (!s->condexec_mask)
|
| 9894 |
gen_logic_CC(tmp); |
| 9895 |
store_reg(s, rd, tmp); |
| 9896 |
} else {
|
| 9897 |
tmp = load_reg(s, rd); |
| 9898 |
tmp2 = tcg_temp_new_i32(); |
| 9899 |
tcg_gen_movi_i32(tmp2, insn & 0xff);
|
| 9900 |
switch (op) {
|
| 9901 |
case 1: /* cmp */ |
| 9902 |
gen_sub_CC(tmp, tmp, tmp2); |
| 9903 |
tcg_temp_free_i32(tmp); |
| 9904 |
tcg_temp_free_i32(tmp2); |
| 9905 |
break;
|
| 9906 |
case 2: /* add */ |
| 9907 |
if (s->condexec_mask)
|
| 9908 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
| 9909 |
else
|
| 9910 |
gen_add_CC(tmp, tmp, tmp2); |
| 9911 |
tcg_temp_free_i32(tmp2); |
| 9912 |
store_reg(s, rd, tmp); |
| 9913 |
break;
|
| 9914 |
case 3: /* sub */ |
| 9915 |
if (s->condexec_mask)
|
| 9916 |
tcg_gen_sub_i32(tmp, tmp, tmp2); |
| 9917 |
else
|
| 9918 |
gen_sub_CC(tmp, tmp, tmp2); |
| 9919 |
tcg_temp_free_i32(tmp2); |
| 9920 |
store_reg(s, rd, tmp); |
| 9921 |
break;
|
| 9922 |
} |
| 9923 |
} |
| 9924 |
break;
|
| 9925 |
case 4: |
| 9926 |
if (insn & (1 << 11)) { |
| 9927 |
rd = (insn >> 8) & 7; |
| 9928 |
/* load pc-relative. Bit 1 of PC is ignored. */
|
| 9929 |
val = s->pc + 2 + ((insn & 0xff) * 4); |
| 9930 |
val &= ~(uint32_t)2;
|
| 9931 |
addr = tcg_temp_new_i32(); |
| 9932 |
tcg_gen_movi_i32(addr, val); |
| 9933 |
tmp = tcg_temp_new_i32(); |
| 9934 |
gen_aa32_ld32u(tmp, addr, IS_USER(s)); |
| 9935 |
tcg_temp_free_i32(addr); |
| 9936 |
store_reg(s, rd, tmp); |
| 9937 |
break;
|
| 9938 |
} |
| 9939 |
if (insn & (1 << 10)) { |
| 9940 |
/* data processing extended or blx */
|
| 9941 |
rd = (insn & 7) | ((insn >> 4) & 8); |
| 9942 |
rm = (insn >> 3) & 0xf; |
| 9943 |
op = (insn >> 8) & 3; |
| 9944 |
switch (op) {
|
| 9945 |
case 0: /* add */ |
| 9946 |
tmp = load_reg(s, rd); |
| 9947 |
tmp2 = load_reg(s, rm); |
| 9948 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
| 9949 |
tcg_temp_free_i32(tmp2); |
| 9950 |
store_reg(s, rd, tmp); |
| 9951 |
break;
|
| 9952 |
case 1: /* cmp */ |
| 9953 |
tmp = load_reg(s, rd); |
| 9954 |
tmp2 = load_reg(s, rm); |
| 9955 |
gen_sub_CC(tmp, tmp, tmp2); |
| 9956 |
tcg_temp_free_i32(tmp2); |
| 9957 |
tcg_temp_free_i32(tmp); |
| 9958 |
break;
|
| 9959 |
case 2: /* mov/cpy */ |
| 9960 |
tmp = load_reg(s, rm); |
| 9961 |
store_reg(s, rd, tmp); |
| 9962 |
break;
|
| 9963 |
case 3:/* branch [and link] exchange thumb register */ |
| 9964 |
tmp = load_reg(s, rm); |
| 9965 |
if (insn & (1 << 7)) { |
| 9966 |
ARCH(5);
|
| 9967 |
val = (uint32_t)s->pc | 1;
|
| 9968 |
tmp2 = tcg_temp_new_i32(); |
| 9969 |
tcg_gen_movi_i32(tmp2, val); |
| 9970 |
store_reg(s, 14, tmp2);
|
| 9971 |
} |
| 9972 |
/* already thumb, no need to check */
|
| 9973 |
gen_bx(s, tmp); |
| 9974 |
break;
|
| 9975 |
} |
| 9976 |
break;
|
| 9977 |
} |
| 9978 |
|
| 9979 |
/* data processing register */
|
| 9980 |
rd = insn & 7;
|
| 9981 |
rm = (insn >> 3) & 7; |
| 9982 |
op = (insn >> 6) & 0xf; |
| 9983 |
if (op == 2 || op == 3 || op == 4 || op == 7) { |
| 9984 |
/* the shift/rotate ops want the operands backwards */
|
| 9985 |
val = rm; |
| 9986 |
rm = rd; |
| 9987 |
rd = val; |
| 9988 |
val = 1;
|
| 9989 |
} else {
|
| 9990 |
val = 0;
|
| 9991 |
} |
| 9992 |
|
| 9993 |
if (op == 9) { /* neg */ |
| 9994 |
tmp = tcg_temp_new_i32(); |
| 9995 |
tcg_gen_movi_i32(tmp, 0);
|
| 9996 |
} else if (op != 0xf) { /* mvn doesn't read its first operand */ |
| 9997 |
tmp = load_reg(s, rd); |
| 9998 |
} else {
|
| 9999 |
TCGV_UNUSED_I32(tmp); |
| 10000 |
} |
| 10001 |
|
| 10002 |
tmp2 = load_reg(s, rm); |
| 10003 |
switch (op) {
|
| 10004 |
case 0x0: /* and */ |
| 10005 |
tcg_gen_and_i32(tmp, tmp, tmp2); |
| 10006 |
if (!s->condexec_mask)
|
| 10007 |
gen_logic_CC(tmp); |
| 10008 |
break;
|
| 10009 |
case 0x1: /* eor */ |
| 10010 |
tcg_gen_xor_i32(tmp, tmp, tmp2); |
| 10011 |
if (!s->condexec_mask)
|
| 10012 |
gen_logic_CC(tmp); |
| 10013 |
break;
|
| 10014 |
case 0x2: /* lsl */ |
| 10015 |
if (s->condexec_mask) {
|
| 10016 |
gen_shl(tmp2, tmp2, tmp); |
| 10017 |
} else {
|
| 10018 |
gen_helper_shl_cc(tmp2, cpu_env, tmp2, tmp); |
| 10019 |
gen_logic_CC(tmp2); |
| 10020 |
} |
| 10021 |
break;
|
| 10022 |
case 0x3: /* lsr */ |
| 10023 |
if (s->condexec_mask) {
|
| 10024 |
gen_shr(tmp2, tmp2, tmp); |
| 10025 |
} else {
|
| 10026 |
gen_helper_shr_cc(tmp2, cpu_env, tmp2, tmp); |
| 10027 |
gen_logic_CC(tmp2); |
| 10028 |
} |
| 10029 |
break;
|
| 10030 |
case 0x4: /* asr */ |
| 10031 |
if (s->condexec_mask) {
|
| 10032 |
gen_sar(tmp2, tmp2, tmp); |
| 10033 |
} else {
|
| 10034 |
gen_helper_sar_cc(tmp2, cpu_env, tmp2, tmp); |
| 10035 |
gen_logic_CC(tmp2); |
| 10036 |
} |
| 10037 |
break;
|
| 10038 |
case 0x5: /* adc */ |
| 10039 |
if (s->condexec_mask) {
|
| 10040 |
gen_adc(tmp, tmp2); |
| 10041 |
} else {
|
| 10042 |
gen_adc_CC(tmp, tmp, tmp2); |
| 10043 |
} |
| 10044 |
break;
|
| 10045 |
case 0x6: /* sbc */ |
| 10046 |
if (s->condexec_mask) {
|
| 10047 |
gen_sub_carry(tmp, tmp, tmp2); |
| 10048 |
} else {
|
| 10049 |
gen_sbc_CC(tmp, tmp, tmp2); |
| 10050 |
} |
| 10051 |
break;
|
| 10052 |
case 0x7: /* ror */ |
| 10053 |
if (s->condexec_mask) {
|
| 10054 |
tcg_gen_andi_i32(tmp, tmp, 0x1f);
|
| 10055 |
tcg_gen_rotr_i32(tmp2, tmp2, tmp); |
| 10056 |
} else {
|
| 10057 |
gen_helper_ror_cc(tmp2, cpu_env, tmp2, tmp); |
| 10058 |
gen_logic_CC(tmp2); |
| 10059 |
} |
| 10060 |
break;
|
| 10061 |
case 0x8: /* tst */ |
| 10062 |
tcg_gen_and_i32(tmp, tmp, tmp2); |
| 10063 |
gen_logic_CC(tmp); |
| 10064 |
rd = 16;
|
| 10065 |
break;
|
| 10066 |
case 0x9: /* neg */ |
| 10067 |
if (s->condexec_mask)
|
| 10068 |
tcg_gen_neg_i32(tmp, tmp2); |
| 10069 |
else
|
| 10070 |
gen_sub_CC(tmp, tmp, tmp2); |
| 10071 |
break;
|
| 10072 |
case 0xa: /* cmp */ |
| 10073 |
gen_sub_CC(tmp, tmp, tmp2); |
| 10074 |
rd = 16;
|
| 10075 |
break;
|
| 10076 |
case 0xb: /* cmn */ |
| 10077 |
gen_add_CC(tmp, tmp, tmp2); |
| 10078 |
rd = 16;
|
| 10079 |
break;
|
| 10080 |
case 0xc: /* orr */ |
| 10081 |
tcg_gen_or_i32(tmp, tmp, tmp2); |
| 10082 |
if (!s->condexec_mask)
|
| 10083 |
gen_logic_CC(tmp); |
| 10084 |
break;
|
| 10085 |
case 0xd: /* mul */ |
| 10086 |
tcg_gen_mul_i32(tmp, tmp, tmp2); |
| 10087 |
if (!s->condexec_mask)
|
| 10088 |
gen_logic_CC(tmp); |
| 10089 |
break;
|
| 10090 |
case 0xe: /* bic */ |
| 10091 |
tcg_gen_andc_i32(tmp, tmp, tmp2); |
| 10092 |
if (!s->condexec_mask)
|
| 10093 |
gen_logic_CC(tmp); |
| 10094 |
break;
|
| 10095 |
case 0xf: /* mvn */ |
| 10096 |
tcg_gen_not_i32(tmp2, tmp2); |
| 10097 |
if (!s->condexec_mask)
|
| 10098 |
gen_logic_CC(tmp2); |
| 10099 |
val = 1;
|
| 10100 |
rm = rd; |
| 10101 |
break;
|
| 10102 |
} |
| 10103 |
if (rd != 16) { |
| 10104 |
if (val) {
|
| 10105 |
store_reg(s, rm, tmp2); |
| 10106 |
if (op != 0xf) |
| 10107 |
tcg_temp_free_i32(tmp); |
| 10108 |
} else {
|
| 10109 |
store_reg(s, rd, tmp); |
| 10110 |
tcg_temp_free_i32(tmp2); |
| 10111 |
} |
| 10112 |
} else {
|
| 10113 |
tcg_temp_free_i32(tmp); |
| 10114 |
tcg_temp_free_i32(tmp2); |
| 10115 |
} |
| 10116 |
break;
|
| 10117 |
|
| 10118 |
case 5: |
| 10119 |
/* load/store register offset. */
|
| 10120 |
rd = insn & 7;
|
| 10121 |
rn = (insn >> 3) & 7; |
| 10122 |
rm = (insn >> 6) & 7; |
| 10123 |
op = (insn >> 9) & 7; |
| 10124 |
addr = load_reg(s, rn); |
| 10125 |
tmp = load_reg(s, rm); |
| 10126 |
tcg_gen_add_i32(addr, addr, tmp); |
| 10127 |
tcg_temp_free_i32(tmp); |
| 10128 |
|
| 10129 |
if (op < 3) { /* store */ |
| 10130 |
tmp = load_reg(s, rd); |
| 10131 |
} else {
|
| 10132 |
tmp = tcg_temp_new_i32(); |
| 10133 |
} |
| 10134 |
|
| 10135 |
switch (op) {
|
| 10136 |
case 0: /* str */ |
| 10137 |
gen_aa32_st32(tmp, addr, IS_USER(s)); |
| 10138 |
break;
|
| 10139 |
case 1: /* strh */ |
| 10140 |
gen_aa32_st16(tmp, addr, IS_USER(s)); |
| 10141 |
break;
|
| 10142 |
case 2: /* strb */ |
| 10143 |
gen_aa32_st8(tmp, addr, IS_USER(s)); |
| 10144 |
break;
|
| 10145 |
case 3: /* ldrsb */ |
| 10146 |
gen_aa32_ld8s(tmp, addr, IS_USER(s)); |
| 10147 |
break;
|
| 10148 |
case 4: /* ldr */ |
| 10149 |
gen_aa32_ld32u(tmp, addr, IS_USER(s)); |
| 10150 |
break;
|
| 10151 |
case 5: /* ldrh */ |
| 10152 |
gen_aa32_ld16u(tmp, addr, IS_USER(s)); |
| 10153 |
break;
|
| 10154 |
case 6: /* ldrb */ |
| 10155 |
gen_aa32_ld8u(tmp, addr, IS_USER(s)); |
| 10156 |
break;
|
| 10157 |
case 7: /* ldrsh */ |
| 10158 |
gen_aa32_ld16s(tmp, addr, IS_USER(s)); |
| 10159 |
break;
|
| 10160 |
} |
| 10161 |
if (op >= 3) { /* load */ |
| 10162 |
store_reg(s, rd, tmp); |
| 10163 |
} else {
|
| 10164 |
tcg_temp_free_i32(tmp); |
| 10165 |
} |
| 10166 |
tcg_temp_free_i32(addr); |
| 10167 |
break;
|
| 10168 |
|
| 10169 |
case 6: |
| 10170 |
/* load/store word immediate offset */
|
| 10171 |
rd = insn & 7;
|
| 10172 |
rn = (insn >> 3) & 7; |
| 10173 |
addr = load_reg(s, rn); |
| 10174 |
val = (insn >> 4) & 0x7c; |
| 10175 |
tcg_gen_addi_i32(addr, addr, val); |
| 10176 |
|
| 10177 |
if (insn & (1 << 11)) { |
| 10178 |
/* load */
|
| 10179 |
tmp = tcg_temp_new_i32(); |
| 10180 |
gen_aa32_ld32u(tmp, addr, IS_USER(s)); |
| 10181 |
store_reg(s, rd, tmp); |
| 10182 |
} else {
|
| 10183 |
/* store */
|
| 10184 |
tmp = load_reg(s, rd); |
| 10185 |
gen_aa32_st32(tmp, addr, IS_USER(s)); |
| 10186 |
tcg_temp_free_i32(tmp); |
| 10187 |
} |
| 10188 |
tcg_temp_free_i32(addr); |
| 10189 |
break;
|
| 10190 |
|
| 10191 |
case 7: |
| 10192 |
/* load/store byte immediate offset */
|
| 10193 |
rd = insn & 7;
|
| 10194 |
rn = (insn >> 3) & 7; |
| 10195 |
addr = load_reg(s, rn); |
| 10196 |
val = (insn >> 6) & 0x1f; |
| 10197 |
tcg_gen_addi_i32(addr, addr, val); |
| 10198 |
|
| 10199 |
if (insn & (1 << 11)) { |
| 10200 |
/* load */
|
| 10201 |
tmp = tcg_temp_new_i32(); |
| 10202 |
gen_aa32_ld8u(tmp, addr, IS_USER(s)); |
| 10203 |
store_reg(s, rd, tmp); |
| 10204 |
} else {
|
| 10205 |
/* store */
|
| 10206 |
tmp = load_reg(s, rd); |
| 10207 |
gen_aa32_st8(tmp, addr, IS_USER(s)); |
| 10208 |
tcg_temp_free_i32(tmp); |
| 10209 |
} |
| 10210 |
tcg_temp_free_i32(addr); |
| 10211 |
break;
|
| 10212 |
|
| 10213 |
case 8: |
| 10214 |
/* load/store halfword immediate offset */
|
| 10215 |
rd = insn & 7;
|
| 10216 |
rn = (insn >> 3) & 7; |
| 10217 |
addr = load_reg(s, rn); |
| 10218 |
val = (insn >> 5) & 0x3e; |
| 10219 |
tcg_gen_addi_i32(addr, addr, val); |
| 10220 |
|
| 10221 |
if (insn & (1 << 11)) { |
| 10222 |
/* load */
|
| 10223 |
tmp = tcg_temp_new_i32(); |
| 10224 |
gen_aa32_ld16u(tmp, addr, IS_USER(s)); |
| 10225 |
store_reg(s, rd, tmp); |
| 10226 |
} else {
|
| 10227 |
/* store */
|
| 10228 |
tmp = load_reg(s, rd); |
| 10229 |
gen_aa32_st16(tmp, addr, IS_USER(s)); |
| 10230 |
tcg_temp_free_i32(tmp); |
| 10231 |
} |
| 10232 |
tcg_temp_free_i32(addr); |
| 10233 |
break;
|
| 10234 |
|
| 10235 |
case 9: |
| 10236 |
/* load/store from stack */
|
| 10237 |
rd = (insn >> 8) & 7; |
| 10238 |
addr = load_reg(s, 13);
|
| 10239 |
val = (insn & 0xff) * 4; |
| 10240 |
tcg_gen_addi_i32(addr, addr, val); |
| 10241 |
|
| 10242 |
if (insn & (1 << 11)) { |
| 10243 |
/* load */
|
| 10244 |
tmp = tcg_temp_new_i32(); |
| 10245 |
gen_aa32_ld32u(tmp, addr, IS_USER(s)); |
| 10246 |
store_reg(s, rd, tmp); |
| 10247 |
} else {
|
| 10248 |
/* store */
|
| 10249 |
tmp = load_reg(s, rd); |
| 10250 |
gen_aa32_st32(tmp, addr, IS_USER(s)); |
| 10251 |
tcg_temp_free_i32(tmp); |
| 10252 |
} |
| 10253 |
tcg_temp_free_i32(addr); |
| 10254 |
break;
|
| 10255 |
|
| 10256 |
case 10: |
| 10257 |
/* add to high reg */
|
| 10258 |
rd = (insn >> 8) & 7; |
| 10259 |
if (insn & (1 << 11)) { |
| 10260 |
/* SP */
|
| 10261 |
tmp = load_reg(s, 13);
|
| 10262 |
} else {
|
| 10263 |
/* PC. bit 1 is ignored. */
|
| 10264 |
tmp = tcg_temp_new_i32(); |
| 10265 |
tcg_gen_movi_i32(tmp, (s->pc + 2) & ~(uint32_t)2); |
| 10266 |
} |
| 10267 |
val = (insn & 0xff) * 4; |
| 10268 |
tcg_gen_addi_i32(tmp, tmp, val); |
| 10269 |
store_reg(s, rd, tmp); |
| 10270 |
break;
|
| 10271 |
|
| 10272 |
case 11: |
| 10273 |
/* misc */
|
| 10274 |
op = (insn >> 8) & 0xf; |
| 10275 |
switch (op) {
|
| 10276 |
case 0: |
| 10277 |
/* adjust stack pointer */
|
| 10278 |
tmp = load_reg(s, 13);
|
| 10279 |
val = (insn & 0x7f) * 4; |
| 10280 |
if (insn & (1 << 7)) |
| 10281 |
val = -(int32_t)val; |
| 10282 |
tcg_gen_addi_i32(tmp, tmp, val); |
| 10283 |
store_reg(s, 13, tmp);
|
| 10284 |
break;
|
| 10285 |
|
| 10286 |
case 2: /* sign/zero extend. */ |
| 10287 |
ARCH(6);
|
| 10288 |
rd = insn & 7;
|
| 10289 |
rm = (insn >> 3) & 7; |
| 10290 |
tmp = load_reg(s, rm); |
| 10291 |
switch ((insn >> 6) & 3) { |
| 10292 |
case 0: gen_sxth(tmp); break; |
| 10293 |
case 1: gen_sxtb(tmp); break; |
| 10294 |
case 2: gen_uxth(tmp); break; |
| 10295 |
case 3: gen_uxtb(tmp); break; |
| 10296 |
} |
| 10297 |
store_reg(s, rd, tmp); |
| 10298 |
break;
|
| 10299 |
case 4: case 5: case 0xc: case 0xd: |
| 10300 |
/* push/pop */
|
| 10301 |
addr = load_reg(s, 13);
|
| 10302 |
if (insn & (1 << 8)) |
| 10303 |
offset = 4;
|
| 10304 |
else
|
| 10305 |
offset = 0;
|
| 10306 |
for (i = 0; i < 8; i++) { |
| 10307 |
if (insn & (1 << i)) |
| 10308 |
offset += 4;
|
| 10309 |
} |
| 10310 |
if ((insn & (1 << 11)) == 0) { |
| 10311 |
tcg_gen_addi_i32(addr, addr, -offset); |
| 10312 |
} |
| 10313 |
for (i = 0; i < 8; i++) { |
| 10314 |
if (insn & (1 << i)) { |
| 10315 |
if (insn & (1 << 11)) { |
| 10316 |
/* pop */
|
| 10317 |
tmp = tcg_temp_new_i32(); |
| 10318 |
gen_aa32_ld32u(tmp, addr, IS_USER(s)); |
| 10319 |
store_reg(s, i, tmp); |
| 10320 |
} else {
|
| 10321 |
/* push */
|
| 10322 |
tmp = load_reg(s, i); |
| 10323 |
gen_aa32_st32(tmp, addr, IS_USER(s)); |
| 10324 |
tcg_temp_free_i32(tmp); |
| 10325 |
} |
| 10326 |
/* advance to the next address. */
|
| 10327 |
tcg_gen_addi_i32(addr, addr, 4);
|
| 10328 |
} |
| 10329 |
} |
| 10330 |
TCGV_UNUSED_I32(tmp); |
| 10331 |
if (insn & (1 << 8)) { |
| 10332 |
if (insn & (1 << 11)) { |
| 10333 |
/* pop pc */
|
| 10334 |
tmp = tcg_temp_new_i32(); |
| 10335 |
gen_aa32_ld32u(tmp, addr, IS_USER(s)); |
| 10336 |
/* don't set the pc until the rest of the instruction
|
| 10337 |
has completed */
|
| 10338 |
} else {
|
| 10339 |
/* push lr */
|
| 10340 |
tmp = load_reg(s, 14);
|
| 10341 |
gen_aa32_st32(tmp, addr, IS_USER(s)); |
| 10342 |
tcg_temp_free_i32(tmp); |
| 10343 |
} |
| 10344 |
tcg_gen_addi_i32(addr, addr, 4);
|
| 10345 |
} |
| 10346 |
if ((insn & (1 << 11)) == 0) { |
| 10347 |
tcg_gen_addi_i32(addr, addr, -offset); |
| 10348 |
} |
| 10349 |
/* write back the new stack pointer */
|
| 10350 |
store_reg(s, 13, addr);
|
| 10351 |
/* set the new PC value */
|
| 10352 |
if ((insn & 0x0900) == 0x0900) { |
| 10353 |
store_reg_from_load(env, s, 15, tmp);
|
| 10354 |
} |
| 10355 |
break;
|
| 10356 |
|
| 10357 |
case 1: case 3: case 9: case 11: /* czb */ |
| 10358 |
rm = insn & 7;
|
| 10359 |
tmp = load_reg(s, rm); |
| 10360 |
s->condlabel = gen_new_label(); |
| 10361 |
s->condjmp = 1;
|
| 10362 |
if (insn & (1 << 11)) |
| 10363 |
tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, s->condlabel);
|
| 10364 |
else
|
| 10365 |
tcg_gen_brcondi_i32(TCG_COND_NE, tmp, 0, s->condlabel);
|
| 10366 |
tcg_temp_free_i32(tmp); |
| 10367 |
offset = ((insn & 0xf8) >> 2) | (insn & 0x200) >> 3; |
| 10368 |
val = (uint32_t)s->pc + 2;
|
| 10369 |
val += offset; |
| 10370 |
gen_jmp(s, val); |
| 10371 |
break;
|
| 10372 |
|
| 10373 |
case 15: /* IT, nop-hint. */ |
| 10374 |
if ((insn & 0xf) == 0) { |
| 10375 |
gen_nop_hint(s, (insn >> 4) & 0xf); |
| 10376 |
break;
|
| 10377 |
} |
| 10378 |
/* If Then. */
|
| 10379 |
s->condexec_cond = (insn >> 4) & 0xe; |
| 10380 |
s->condexec_mask = insn & 0x1f;
|
| 10381 |
/* No actual code generated for this insn, just setup state. */
|
| 10382 |
break;
|
| 10383 |
|
| 10384 |
case 0xe: /* bkpt */ |
| 10385 |
ARCH(5);
|
| 10386 |
gen_exception_insn(s, 2, EXCP_BKPT);
|
| 10387 |
break;
|
| 10388 |
|
| 10389 |
case 0xa: /* rev */ |
| 10390 |
ARCH(6);
|
| 10391 |
rn = (insn >> 3) & 0x7; |
| 10392 |
rd = insn & 0x7;
|
| 10393 |
tmp = load_reg(s, rn); |
| 10394 |
switch ((insn >> 6) & 3) { |
| 10395 |
case 0: tcg_gen_bswap32_i32(tmp, tmp); break; |
| 10396 |
case 1: gen_rev16(tmp); break; |
| 10397 |
case 3: gen_revsh(tmp); break; |
| 10398 |
default: goto illegal_op; |
| 10399 |
} |
| 10400 |
store_reg(s, rd, tmp); |
| 10401 |
break;
|
| 10402 |
|
| 10403 |
case 6: |
| 10404 |
switch ((insn >> 5) & 7) { |
| 10405 |
case 2: |
| 10406 |
/* setend */
|
| 10407 |
ARCH(6);
|
| 10408 |
if (((insn >> 3) & 1) != s->bswap_code) { |
| 10409 |
/* Dynamic endianness switching not implemented. */
|
| 10410 |
qemu_log_mask(LOG_UNIMP, "arm: unimplemented setend\n");
|
| 10411 |
goto illegal_op;
|
| 10412 |
} |
| 10413 |
break;
|
| 10414 |
case 3: |
| 10415 |
/* cps */
|
| 10416 |
ARCH(6);
|
| 10417 |
if (IS_USER(s)) {
|
| 10418 |
break;
|
| 10419 |
} |
| 10420 |
if (IS_M(env)) {
|
| 10421 |
tmp = tcg_const_i32((insn & (1 << 4)) != 0); |
| 10422 |
/* FAULTMASK */
|
| 10423 |
if (insn & 1) { |
| 10424 |
addr = tcg_const_i32(19);
|
| 10425 |
gen_helper_v7m_msr(cpu_env, addr, tmp); |
| 10426 |
tcg_temp_free_i32(addr); |
| 10427 |
} |
| 10428 |
/* PRIMASK */
|
| 10429 |
if (insn & 2) { |
| 10430 |
addr = tcg_const_i32(16);
|
| 10431 |
gen_helper_v7m_msr(cpu_env, addr, tmp); |
| 10432 |
tcg_temp_free_i32(addr); |
| 10433 |
} |
| 10434 |
tcg_temp_free_i32(tmp); |
| 10435 |
gen_lookup_tb(s); |
| 10436 |
} else {
|
| 10437 |
if (insn & (1 << 4)) { |
| 10438 |
shift = CPSR_A | CPSR_I | CPSR_F; |
| 10439 |
} else {
|
| 10440 |
shift = 0;
|
| 10441 |
} |
| 10442 |
gen_set_psr_im(s, ((insn & 7) << 6), 0, shift); |
| 10443 |
} |
| 10444 |
break;
|
| 10445 |
default:
|
| 10446 |
goto undef;
|
| 10447 |
} |
| 10448 |
break;
|
| 10449 |
|
| 10450 |
default:
|
| 10451 |
goto undef;
|
| 10452 |
} |
| 10453 |
break;
|
| 10454 |
|
| 10455 |
case 12: |
| 10456 |
{
|
| 10457 |
/* load/store multiple */
|
| 10458 |
TCGv_i32 loaded_var; |
| 10459 |
TCGV_UNUSED_I32(loaded_var); |
| 10460 |
rn = (insn >> 8) & 0x7; |
| 10461 |
addr = load_reg(s, rn); |
| 10462 |
for (i = 0; i < 8; i++) { |
| 10463 |
if (insn & (1 << i)) { |
| 10464 |
if (insn & (1 << 11)) { |
| 10465 |
/* load */
|
| 10466 |
tmp = tcg_temp_new_i32(); |
| 10467 |
gen_aa32_ld32u(tmp, addr, IS_USER(s)); |
| 10468 |
if (i == rn) {
|
| 10469 |
loaded_var = tmp; |
| 10470 |
} else {
|
| 10471 |
store_reg(s, i, tmp); |
| 10472 |
} |
| 10473 |
} else {
|
| 10474 |
/* store */
|
| 10475 |
tmp = load_reg(s, i); |
| 10476 |
gen_aa32_st32(tmp, addr, IS_USER(s)); |
| 10477 |
tcg_temp_free_i32(tmp); |
| 10478 |
} |
| 10479 |
/* advance to the next address */
|
| 10480 |
tcg_gen_addi_i32(addr, addr, 4);
|
| 10481 |
} |
| 10482 |
} |
| 10483 |
if ((insn & (1 << rn)) == 0) { |
| 10484 |
/* base reg not in list: base register writeback */
|
| 10485 |
store_reg(s, rn, addr); |
| 10486 |
} else {
|
| 10487 |
/* base reg in list: if load, complete it now */
|
| 10488 |
if (insn & (1 << 11)) { |
| 10489 |
store_reg(s, rn, loaded_var); |
| 10490 |
} |
| 10491 |
tcg_temp_free_i32(addr); |
| 10492 |
} |
| 10493 |
break;
|
| 10494 |
} |
| 10495 |
case 13: |
| 10496 |
/* conditional branch or swi */
|
| 10497 |
cond = (insn >> 8) & 0xf; |
| 10498 |
if (cond == 0xe) |
| 10499 |
goto undef;
|
| 10500 |
|
| 10501 |
if (cond == 0xf) { |
| 10502 |
/* swi */
|
| 10503 |
gen_set_pc_im(s, s->pc); |
| 10504 |
s->is_jmp = DISAS_SWI; |
| 10505 |
break;
|
| 10506 |
} |
| 10507 |
/* generate a conditional jump to next instruction */
|
| 10508 |
s->condlabel = gen_new_label(); |
| 10509 |
arm_gen_test_cc(cond ^ 1, s->condlabel);
|
| 10510 |
s->condjmp = 1;
|
| 10511 |
|
| 10512 |
/* jump to the offset */
|
| 10513 |
val = (uint32_t)s->pc + 2;
|
| 10514 |
offset = ((int32_t)insn << 24) >> 24; |
| 10515 |
val += offset << 1;
|
| 10516 |
gen_jmp(s, val); |
| 10517 |
break;
|
| 10518 |
|
| 10519 |
case 14: |
| 10520 |
if (insn & (1 << 11)) { |
| 10521 |
if (disas_thumb2_insn(env, s, insn))
|
| 10522 |
goto undef32;
|
| 10523 |
break;
|
| 10524 |
} |
| 10525 |
/* unconditional branch */
|
| 10526 |
val = (uint32_t)s->pc; |
| 10527 |
offset = ((int32_t)insn << 21) >> 21; |
| 10528 |
val += (offset << 1) + 2; |
| 10529 |
gen_jmp(s, val); |
| 10530 |
break;
|
| 10531 |
|
| 10532 |
case 15: |
| 10533 |
if (disas_thumb2_insn(env, s, insn))
|
| 10534 |
goto undef32;
|
| 10535 |
break;
|
| 10536 |
} |
| 10537 |
return;
|
| 10538 |
undef32:
|
| 10539 |
gen_exception_insn(s, 4, EXCP_UDEF);
|
| 10540 |
return;
|
| 10541 |
illegal_op:
|
| 10542 |
undef:
|
| 10543 |
gen_exception_insn(s, 2, EXCP_UDEF);
|
| 10544 |
} |
| 10545 |
|
| 10546 |
/* generate intermediate code in gen_opc_buf and gen_opparam_buf for
|
| 10547 |
basic block 'tb'. If search_pc is TRUE, also generate PC
|
| 10548 |
information for each intermediate instruction. */
|
| 10549 |
static inline void gen_intermediate_code_internal(ARMCPU *cpu, |
| 10550 |
TranslationBlock *tb, |
| 10551 |
bool search_pc)
|
| 10552 |
{
|
| 10553 |
CPUState *cs = CPU(cpu); |
| 10554 |
CPUARMState *env = &cpu->env; |
| 10555 |
DisasContext dc1, *dc = &dc1; |
| 10556 |
CPUBreakpoint *bp; |
| 10557 |
uint16_t *gen_opc_end; |
| 10558 |
int j, lj;
|
| 10559 |
target_ulong pc_start; |
| 10560 |
target_ulong next_page_start; |
| 10561 |
int num_insns;
|
| 10562 |
int max_insns;
|
| 10563 |
|
| 10564 |
/* generate intermediate code */
|
| 10565 |
|
| 10566 |
/* The A64 decoder has its own top level loop, because it doesn't need
|
| 10567 |
* the A32/T32 complexity to do with conditional execution/IT blocks/etc.
|
| 10568 |
*/
|
| 10569 |
if (ARM_TBFLAG_AARCH64_STATE(tb->flags)) {
|
| 10570 |
gen_intermediate_code_internal_a64(cpu, tb, search_pc); |
| 10571 |
return;
|
| 10572 |
} |
| 10573 |
|
| 10574 |
pc_start = tb->pc; |
| 10575 |
|
| 10576 |
dc->tb = tb; |
| 10577 |
|
| 10578 |
gen_opc_end = tcg_ctx.gen_opc_buf + OPC_MAX_SIZE; |
| 10579 |
|
| 10580 |
dc->is_jmp = DISAS_NEXT; |
| 10581 |
dc->pc = pc_start; |
| 10582 |
dc->singlestep_enabled = cs->singlestep_enabled; |
| 10583 |
dc->condjmp = 0;
|
| 10584 |
|
| 10585 |
dc->aarch64 = 0;
|
| 10586 |
dc->thumb = ARM_TBFLAG_THUMB(tb->flags); |
| 10587 |
dc->bswap_code = ARM_TBFLAG_BSWAP_CODE(tb->flags); |
| 10588 |
dc->condexec_mask = (ARM_TBFLAG_CONDEXEC(tb->flags) & 0xf) << 1; |
| 10589 |
dc->condexec_cond = ARM_TBFLAG_CONDEXEC(tb->flags) >> 4;
|
| 10590 |
#if !defined(CONFIG_USER_ONLY)
|
| 10591 |
dc->user = (ARM_TBFLAG_PRIV(tb->flags) == 0);
|
| 10592 |
#endif
|
| 10593 |
dc->vfp_enabled = ARM_TBFLAG_VFPEN(tb->flags); |
| 10594 |
dc->vec_len = ARM_TBFLAG_VECLEN(tb->flags); |
| 10595 |
dc->vec_stride = ARM_TBFLAG_VECSTRIDE(tb->flags); |
| 10596 |
dc->cp_regs = cpu->cp_regs; |
| 10597 |
dc->current_pl = arm_current_pl(env); |
| 10598 |
|
| 10599 |
cpu_F0s = tcg_temp_new_i32(); |
| 10600 |
cpu_F1s = tcg_temp_new_i32(); |
| 10601 |
cpu_F0d = tcg_temp_new_i64(); |
| 10602 |
cpu_F1d = tcg_temp_new_i64(); |
| 10603 |
cpu_V0 = cpu_F0d; |
| 10604 |
cpu_V1 = cpu_F1d; |
| 10605 |
/* FIXME: cpu_M0 can probably be the same as cpu_V0. */
|
| 10606 |
cpu_M0 = tcg_temp_new_i64(); |
| 10607 |
next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE; |
| 10608 |
lj = -1;
|
| 10609 |
num_insns = 0;
|
| 10610 |
max_insns = tb->cflags & CF_COUNT_MASK; |
| 10611 |
if (max_insns == 0) |
| 10612 |
max_insns = CF_COUNT_MASK; |
| 10613 |
|
| 10614 |
gen_tb_start(); |
| 10615 |
|
| 10616 |
tcg_clear_temp_count(); |
| 10617 |
|
| 10618 |
/* A note on handling of the condexec (IT) bits:
|
| 10619 |
*
|
| 10620 |
* We want to avoid the overhead of having to write the updated condexec
|
| 10621 |
* bits back to the CPUARMState for every instruction in an IT block. So:
|
| 10622 |
* (1) if the condexec bits are not already zero then we write
|
| 10623 |
* zero back into the CPUARMState now. This avoids complications trying
|
| 10624 |
* to do it at the end of the block. (For example if we don't do this
|
| 10625 |
* it's hard to identify whether we can safely skip writing condexec
|
| 10626 |
* at the end of the TB, which we definitely want to do for the case
|
| 10627 |
* where a TB doesn't do anything with the IT state at all.)
|
| 10628 |
* (2) if we are going to leave the TB then we call gen_set_condexec()
|
| 10629 |
* which will write the correct value into CPUARMState if zero is wrong.
|
| 10630 |
* This is done both for leaving the TB at the end, and for leaving
|
| 10631 |
* it because of an exception we know will happen, which is done in
|
| 10632 |
* gen_exception_insn(). The latter is necessary because we need to
|
| 10633 |
* leave the TB with the PC/IT state just prior to execution of the
|
| 10634 |
* instruction which caused the exception.
|
| 10635 |
* (3) if we leave the TB unexpectedly (eg a data abort on a load)
|
| 10636 |
* then the CPUARMState will be wrong and we need to reset it.
|
| 10637 |
* This is handled in the same way as restoration of the
|
| 10638 |
* PC in these situations: we will be called again with search_pc=1
|
| 10639 |
* and generate a mapping of the condexec bits for each PC in
|
| 10640 |
* gen_opc_condexec_bits[]. restore_state_to_opc() then uses
|
| 10641 |
* this to restore the condexec bits.
|
| 10642 |
*
|
| 10643 |
* Note that there are no instructions which can read the condexec
|
| 10644 |
* bits, and none which can write non-static values to them, so
|
| 10645 |
* we don't need to care about whether CPUARMState is correct in the
|
| 10646 |
* middle of a TB.
|
| 10647 |
*/
|
| 10648 |
|
| 10649 |
/* Reset the conditional execution bits immediately. This avoids
|
| 10650 |
complications trying to do it at the end of the block. */
|
| 10651 |
if (dc->condexec_mask || dc->condexec_cond)
|
| 10652 |
{
|
| 10653 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 10654 |
tcg_gen_movi_i32(tmp, 0);
|
| 10655 |
store_cpu_field(tmp, condexec_bits); |
| 10656 |
} |
| 10657 |
do {
|
| 10658 |
#ifdef CONFIG_USER_ONLY
|
| 10659 |
/* Intercept jump to the magic kernel page. */
|
| 10660 |
if (dc->pc >= 0xffff0000) { |
| 10661 |
/* We always get here via a jump, so know we are not in a
|
| 10662 |
conditional execution block. */
|
| 10663 |
gen_exception(EXCP_KERNEL_TRAP); |
| 10664 |
dc->is_jmp = DISAS_UPDATE; |
| 10665 |
break;
|
| 10666 |
} |
| 10667 |
#else
|
| 10668 |
if (dc->pc >= 0xfffffff0 && IS_M(env)) { |
| 10669 |
/* We always get here via a jump, so know we are not in a
|
| 10670 |
conditional execution block. */
|
| 10671 |
gen_exception(EXCP_EXCEPTION_EXIT); |
| 10672 |
dc->is_jmp = DISAS_UPDATE; |
| 10673 |
break;
|
| 10674 |
} |
| 10675 |
#endif
|
| 10676 |
|
| 10677 |
if (unlikely(!QTAILQ_EMPTY(&env->breakpoints))) {
|
| 10678 |
QTAILQ_FOREACH(bp, &env->breakpoints, entry) {
|
| 10679 |
if (bp->pc == dc->pc) {
|
| 10680 |
gen_exception_insn(dc, 0, EXCP_DEBUG);
|
| 10681 |
/* Advance PC so that clearing the breakpoint will
|
| 10682 |
invalidate this TB. */
|
| 10683 |
dc->pc += 2;
|
| 10684 |
goto done_generating;
|
| 10685 |
} |
| 10686 |
} |
| 10687 |
} |
| 10688 |
if (search_pc) {
|
| 10689 |
j = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf; |
| 10690 |
if (lj < j) {
|
| 10691 |
lj++; |
| 10692 |
while (lj < j)
|
| 10693 |
tcg_ctx.gen_opc_instr_start[lj++] = 0;
|
| 10694 |
} |
| 10695 |
tcg_ctx.gen_opc_pc[lj] = dc->pc; |
| 10696 |
gen_opc_condexec_bits[lj] = (dc->condexec_cond << 4) | (dc->condexec_mask >> 1); |
| 10697 |
tcg_ctx.gen_opc_instr_start[lj] = 1;
|
| 10698 |
tcg_ctx.gen_opc_icount[lj] = num_insns; |
| 10699 |
} |
| 10700 |
|
| 10701 |
if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO)) |
| 10702 |
gen_io_start(); |
| 10703 |
|
| 10704 |
if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP | CPU_LOG_TB_OP_OPT))) {
|
| 10705 |
tcg_gen_debug_insn_start(dc->pc); |
| 10706 |
} |
| 10707 |
|
| 10708 |
if (dc->thumb) {
|
| 10709 |
disas_thumb_insn(env, dc); |
| 10710 |
if (dc->condexec_mask) {
|
| 10711 |
dc->condexec_cond = (dc->condexec_cond & 0xe)
|
| 10712 |
| ((dc->condexec_mask >> 4) & 1); |
| 10713 |
dc->condexec_mask = (dc->condexec_mask << 1) & 0x1f; |
| 10714 |
if (dc->condexec_mask == 0) { |
| 10715 |
dc->condexec_cond = 0;
|
| 10716 |
} |
| 10717 |
} |
| 10718 |
} else {
|
| 10719 |
disas_arm_insn(env, dc); |
| 10720 |
} |
| 10721 |
|
| 10722 |
if (dc->condjmp && !dc->is_jmp) {
|
| 10723 |
gen_set_label(dc->condlabel); |
| 10724 |
dc->condjmp = 0;
|
| 10725 |
} |
| 10726 |
|
| 10727 |
if (tcg_check_temp_count()) {
|
| 10728 |
fprintf(stderr, "TCG temporary leak before "TARGET_FMT_lx"\n", |
| 10729 |
dc->pc); |
| 10730 |
} |
| 10731 |
|
| 10732 |
/* Translation stops when a conditional branch is encountered.
|
| 10733 |
* Otherwise the subsequent code could get translated several times.
|
| 10734 |
* Also stop translation when a page boundary is reached. This
|
| 10735 |
* ensures prefetch aborts occur at the right place. */
|
| 10736 |
num_insns ++; |
| 10737 |
} while (!dc->is_jmp && tcg_ctx.gen_opc_ptr < gen_opc_end &&
|
| 10738 |
!cs->singlestep_enabled && |
| 10739 |
!singlestep && |
| 10740 |
dc->pc < next_page_start && |
| 10741 |
num_insns < max_insns); |
| 10742 |
|
| 10743 |
if (tb->cflags & CF_LAST_IO) {
|
| 10744 |
if (dc->condjmp) {
|
| 10745 |
/* FIXME: This can theoretically happen with self-modifying
|
| 10746 |
code. */
|
| 10747 |
cpu_abort(env, "IO on conditional branch instruction");
|
| 10748 |
} |
| 10749 |
gen_io_end(); |
| 10750 |
} |
| 10751 |
|
| 10752 |
/* At this stage dc->condjmp will only be set when the skipped
|
| 10753 |
instruction was a conditional branch or trap, and the PC has
|
| 10754 |
already been written. */
|
| 10755 |
if (unlikely(cs->singlestep_enabled)) {
|
| 10756 |
/* Make sure the pc is updated, and raise a debug exception. */
|
| 10757 |
if (dc->condjmp) {
|
| 10758 |
gen_set_condexec(dc); |
| 10759 |
if (dc->is_jmp == DISAS_SWI) {
|
| 10760 |
gen_exception(EXCP_SWI); |
| 10761 |
} else {
|
| 10762 |
gen_exception(EXCP_DEBUG); |
| 10763 |
} |
| 10764 |
gen_set_label(dc->condlabel); |
| 10765 |
} |
| 10766 |
if (dc->condjmp || !dc->is_jmp) {
|
| 10767 |
gen_set_pc_im(dc, dc->pc); |
| 10768 |
dc->condjmp = 0;
|
| 10769 |
} |
| 10770 |
gen_set_condexec(dc); |
| 10771 |
if (dc->is_jmp == DISAS_SWI && !dc->condjmp) {
|
| 10772 |
gen_exception(EXCP_SWI); |
| 10773 |
} else {
|
| 10774 |
/* FIXME: Single stepping a WFI insn will not halt
|
| 10775 |
the CPU. */
|
| 10776 |
gen_exception(EXCP_DEBUG); |
| 10777 |
} |
| 10778 |
} else {
|
| 10779 |
/* While branches must always occur at the end of an IT block,
|
| 10780 |
there are a few other things that can cause us to terminate
|
| 10781 |
the TB in the middle of an IT block:
|
| 10782 |
- Exception generating instructions (bkpt, swi, undefined).
|
| 10783 |
- Page boundaries.
|
| 10784 |
- Hardware watchpoints.
|
| 10785 |
Hardware breakpoints have already been handled and skip this code.
|
| 10786 |
*/
|
| 10787 |
gen_set_condexec(dc); |
| 10788 |
switch(dc->is_jmp) {
|
| 10789 |
case DISAS_NEXT:
|
| 10790 |
gen_goto_tb(dc, 1, dc->pc);
|
| 10791 |
break;
|
| 10792 |
default:
|
| 10793 |
case DISAS_JUMP:
|
| 10794 |
case DISAS_UPDATE:
|
| 10795 |
/* indicate that the hash table must be used to find the next TB */
|
| 10796 |
tcg_gen_exit_tb(0);
|
| 10797 |
break;
|
| 10798 |
case DISAS_TB_JUMP:
|
| 10799 |
/* nothing more to generate */
|
| 10800 |
break;
|
| 10801 |
case DISAS_WFI:
|
| 10802 |
gen_helper_wfi(cpu_env); |
| 10803 |
break;
|
| 10804 |
case DISAS_SWI:
|
| 10805 |
gen_exception(EXCP_SWI); |
| 10806 |
break;
|
| 10807 |
} |
| 10808 |
if (dc->condjmp) {
|
| 10809 |
gen_set_label(dc->condlabel); |
| 10810 |
gen_set_condexec(dc); |
| 10811 |
gen_goto_tb(dc, 1, dc->pc);
|
| 10812 |
dc->condjmp = 0;
|
| 10813 |
} |
| 10814 |
} |
| 10815 |
|
| 10816 |
done_generating:
|
| 10817 |
gen_tb_end(tb, num_insns); |
| 10818 |
*tcg_ctx.gen_opc_ptr = INDEX_op_end; |
| 10819 |
|
| 10820 |
#ifdef DEBUG_DISAS
|
| 10821 |
if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
|
| 10822 |
qemu_log("----------------\n");
|
| 10823 |
qemu_log("IN: %s\n", lookup_symbol(pc_start));
|
| 10824 |
log_target_disas(env, pc_start, dc->pc - pc_start, |
| 10825 |
dc->thumb | (dc->bswap_code << 1));
|
| 10826 |
qemu_log("\n");
|
| 10827 |
} |
| 10828 |
#endif
|
| 10829 |
if (search_pc) {
|
| 10830 |
j = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf; |
| 10831 |
lj++; |
| 10832 |
while (lj <= j)
|
| 10833 |
tcg_ctx.gen_opc_instr_start[lj++] = 0;
|
| 10834 |
} else {
|
| 10835 |
tb->size = dc->pc - pc_start; |
| 10836 |
tb->icount = num_insns; |
| 10837 |
} |
| 10838 |
} |
| 10839 |
|
| 10840 |
void gen_intermediate_code(CPUARMState *env, TranslationBlock *tb)
|
| 10841 |
{
|
| 10842 |
gen_intermediate_code_internal(arm_env_get_cpu(env), tb, false);
|
| 10843 |
} |
| 10844 |
|
| 10845 |
void gen_intermediate_code_pc(CPUARMState *env, TranslationBlock *tb)
|
| 10846 |
{
|
| 10847 |
gen_intermediate_code_internal(arm_env_get_cpu(env), tb, true);
|
| 10848 |
} |
| 10849 |
|
| 10850 |
static const char *cpu_mode_names[16] = { |
| 10851 |
"usr", "fiq", "irq", "svc", "???", "???", "???", "abt", |
| 10852 |
"???", "???", "???", "und", "???", "???", "???", "sys" |
| 10853 |
}; |
| 10854 |
|
| 10855 |
void arm_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf,
|
| 10856 |
int flags)
|
| 10857 |
{
|
| 10858 |
ARMCPU *cpu = ARM_CPU(cs); |
| 10859 |
CPUARMState *env = &cpu->env; |
| 10860 |
int i;
|
| 10861 |
uint32_t psr; |
| 10862 |
|
| 10863 |
for(i=0;i<16;i++) { |
| 10864 |
cpu_fprintf(f, "R%02d=%08x", i, env->regs[i]);
|
| 10865 |
if ((i % 4) == 3) |
| 10866 |
cpu_fprintf(f, "\n");
|
| 10867 |
else
|
| 10868 |
cpu_fprintf(f, " ");
|
| 10869 |
} |
| 10870 |
psr = cpsr_read(env); |
| 10871 |
cpu_fprintf(f, "PSR=%08x %c%c%c%c %c %s%d\n",
|
| 10872 |
psr, |
| 10873 |
psr & (1 << 31) ? 'N' : '-', |
| 10874 |
psr & (1 << 30) ? 'Z' : '-', |
| 10875 |
psr & (1 << 29) ? 'C' : '-', |
| 10876 |
psr & (1 << 28) ? 'V' : '-', |
| 10877 |
psr & CPSR_T ? 'T' : 'A', |
| 10878 |
cpu_mode_names[psr & 0xf], (psr & 0x10) ? 32 : 26); |
| 10879 |
|
| 10880 |
if (flags & CPU_DUMP_FPU) {
|
| 10881 |
int numvfpregs = 0; |
| 10882 |
if (arm_feature(env, ARM_FEATURE_VFP)) {
|
| 10883 |
numvfpregs += 16;
|
| 10884 |
} |
| 10885 |
if (arm_feature(env, ARM_FEATURE_VFP3)) {
|
| 10886 |
numvfpregs += 16;
|
| 10887 |
} |
| 10888 |
for (i = 0; i < numvfpregs; i++) { |
| 10889 |
uint64_t v = float64_val(env->vfp.regs[i]); |
| 10890 |
cpu_fprintf(f, "s%02d=%08x s%02d=%08x d%02d=%016" PRIx64 "\n", |
| 10891 |
i * 2, (uint32_t)v,
|
| 10892 |
i * 2 + 1, (uint32_t)(v >> 32), |
| 10893 |
i, v); |
| 10894 |
} |
| 10895 |
cpu_fprintf(f, "FPSCR: %08x\n", (int)env->vfp.xregs[ARM_VFP_FPSCR]); |
| 10896 |
} |
| 10897 |
} |
| 10898 |
|
| 10899 |
void restore_state_to_opc(CPUARMState *env, TranslationBlock *tb, int pc_pos) |
| 10900 |
{
|
| 10901 |
if (is_a64(env)) {
|
| 10902 |
env->pc = tcg_ctx.gen_opc_pc[pc_pos]; |
| 10903 |
env->condexec_bits = 0;
|
| 10904 |
} else {
|
| 10905 |
env->regs[15] = tcg_ctx.gen_opc_pc[pc_pos];
|
| 10906 |
env->condexec_bits = gen_opc_condexec_bits[pc_pos]; |
| 10907 |
} |
| 10908 |
} |