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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 "exec-all.h" |
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#include "disas.h" |
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#include "tcg-op.h" |
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#include "qemu-log.h" |
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#include "helpers.h" |
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#define GEN_HELPER 1 |
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#include "helpers.h" |
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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 ARCH(x) do { if (!ENABLE_ARCH_##x) goto illegal_op; } while(0) |
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/* internal defines */
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typedef struct DisasContext { |
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target_ulong pc; |
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int is_jmp;
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/* Nonzero if this instruction has been conditionally skipped. */
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int condjmp;
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/* The label that will be jumped to when the instruction is skipped. */
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int condlabel;
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/* Thumb-2 condtional execution bits. */
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int condexec_mask;
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int condexec_cond;
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struct TranslationBlock *tb;
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int singlestep_enabled;
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int thumb;
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#if !defined(CONFIG_USER_ONLY)
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int user;
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#endif
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} DisasContext; |
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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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/* These instructions trap after executing, so defer them until after the
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conditional executions state has been updated. */
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#define DISAS_WFI 4 |
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#define DISAS_SWI 5 |
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static 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_exclusive_addr;
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static TCGv_i32 cpu_exclusive_val;
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static TCGv_i32 cpu_exclusive_high;
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#ifdef CONFIG_USER_ONLY
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static TCGv_i32 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 cpu_F0s, cpu_F1s;
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static TCGv_i64 cpu_F0d, cpu_F1d;
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#include "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(CPUState, regs[i]), |
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regnames[i]); |
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} |
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cpu_exclusive_addr = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUState, exclusive_addr), "exclusive_addr");
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cpu_exclusive_val = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUState, exclusive_val), "exclusive_val");
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cpu_exclusive_high = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUState, exclusive_high), "exclusive_high");
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#ifdef CONFIG_USER_ONLY
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cpu_exclusive_test = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUState, exclusive_test), "exclusive_test");
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cpu_exclusive_info = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUState, exclusive_info), "exclusive_info");
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#endif
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#define GEN_HELPER 2 |
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#include "helpers.h" |
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} |
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static int num_temps; |
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/* Allocate a temporary variable. */
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static TCGv_i32 new_tmp(void) |
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{ |
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num_temps++; |
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return tcg_temp_new_i32();
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} |
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/* Release a temporary variable. */
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static void dead_tmp(TCGv tmp) |
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{ |
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tcg_temp_free(tmp); |
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num_temps--; |
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} |
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static inline TCGv load_cpu_offset(int offset) |
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{ |
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TCGv tmp = new_tmp(); |
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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(CPUState, name))
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static inline void store_cpu_offset(TCGv var, int offset) |
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{ |
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tcg_gen_st_i32(var, cpu_env, offset); |
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dead_tmp(var); |
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} |
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#define store_cpu_field(var, name) \
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store_cpu_offset(var, offsetof(CPUState, 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 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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/* normaly, 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 load_reg(DisasContext *s, int reg) |
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{ |
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TCGv tmp = new_tmp(); |
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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 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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dead_tmp(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 var, uint32_t mask) |
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{ |
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TCGv tmp_mask = tcg_const_i32(mask); |
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gen_helper_cpsr_write(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 tmp = new_tmp(); |
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tcg_gen_movi_i32(tmp, excp); |
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gen_helper_exception(tmp); |
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dead_tmp(tmp); |
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} |
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static void gen_smul_dual(TCGv a, TCGv b) |
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{ |
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TCGv tmp1 = new_tmp(); |
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TCGv tmp2 = new_tmp(); |
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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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dead_tmp(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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dead_tmp(tmp1); |
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} |
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/* Byteswap each halfword. */
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static void gen_rev16(TCGv var) |
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{ |
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TCGv tmp = new_tmp(); |
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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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dead_tmp(tmp); |
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} |
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/* Byteswap low halfword and sign extend. */
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static void gen_revsh(TCGv var) |
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{ |
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TCGv tmp = new_tmp(); |
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tcg_gen_shri_i32(tmp, var, 8);
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tcg_gen_andi_i32(tmp, tmp, 0x00ff);
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tcg_gen_shli_i32(var, var, 8);
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tcg_gen_ext8s_i32(var, var); |
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tcg_gen_or_i32(var, var, tmp); |
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dead_tmp(tmp); |
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} |
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/* Unsigned bitfield extract. */
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static void gen_ubfx(TCGv 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 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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/* Bitfield insertion. Insert val into base. Clobbers base and val. */
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static void gen_bfi(TCGv dest, TCGv base, TCGv val, int shift, uint32_t mask) |
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{ |
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tcg_gen_andi_i32(val, val, mask); |
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tcg_gen_shli_i32(val, val, shift); |
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tcg_gen_andi_i32(base, base, ~(mask << shift)); |
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tcg_gen_or_i32(dest, base, val); |
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} |
293 |
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/* Round the top 32 bits of a 64-bit value. */
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static void gen_roundqd(TCGv a, TCGv b) |
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{ |
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tcg_gen_shri_i32(a, a, 31);
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tcg_gen_add_i32(a, a, b); |
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} |
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/* FIXME: Most targets have native widening multiplication.
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It would be good to use that instead of a full wide multiply. */
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/* 32x32->64 multiply. Marks inputs as dead. */
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static TCGv_i64 gen_mulu_i64_i32(TCGv a, TCGv b)
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{ |
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TCGv_i64 tmp1 = tcg_temp_new_i64(); |
307 |
TCGv_i64 tmp2 = tcg_temp_new_i64(); |
308 |
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tcg_gen_extu_i32_i64(tmp1, a); |
310 |
dead_tmp(a); |
311 |
tcg_gen_extu_i32_i64(tmp2, b); |
312 |
dead_tmp(b); |
313 |
tcg_gen_mul_i64(tmp1, tmp1, tmp2); |
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tcg_temp_free_i64(tmp2); |
315 |
return tmp1;
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} |
317 |
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static TCGv_i64 gen_muls_i64_i32(TCGv a, TCGv b)
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{ |
320 |
TCGv_i64 tmp1 = tcg_temp_new_i64(); |
321 |
TCGv_i64 tmp2 = tcg_temp_new_i64(); |
322 |
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tcg_gen_ext_i32_i64(tmp1, a); |
324 |
dead_tmp(a); |
325 |
tcg_gen_ext_i32_i64(tmp2, b); |
326 |
dead_tmp(b); |
327 |
tcg_gen_mul_i64(tmp1, tmp1, tmp2); |
328 |
tcg_temp_free_i64(tmp2); |
329 |
return tmp1;
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330 |
} |
331 |
|
332 |
/* Signed 32x32->64 multiply. */
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static void gen_imull(TCGv a, TCGv b) |
334 |
{ |
335 |
TCGv_i64 tmp1 = tcg_temp_new_i64(); |
336 |
TCGv_i64 tmp2 = tcg_temp_new_i64(); |
337 |
|
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tcg_gen_ext_i32_i64(tmp1, a); |
339 |
tcg_gen_ext_i32_i64(tmp2, b); |
340 |
tcg_gen_mul_i64(tmp1, tmp1, tmp2); |
341 |
tcg_temp_free_i64(tmp2); |
342 |
tcg_gen_trunc_i64_i32(a, tmp1); |
343 |
tcg_gen_shri_i64(tmp1, tmp1, 32);
|
344 |
tcg_gen_trunc_i64_i32(b, tmp1); |
345 |
tcg_temp_free_i64(tmp1); |
346 |
} |
347 |
|
348 |
/* Swap low and high halfwords. */
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349 |
static void gen_swap_half(TCGv var) |
350 |
{ |
351 |
TCGv tmp = new_tmp(); |
352 |
tcg_gen_shri_i32(tmp, var, 16);
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353 |
tcg_gen_shli_i32(var, var, 16);
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354 |
tcg_gen_or_i32(var, var, tmp); |
355 |
dead_tmp(tmp); |
356 |
} |
357 |
|
358 |
/* Dual 16-bit add. Result placed in t0 and t1 is marked as dead.
|
359 |
tmp = (t0 ^ t1) & 0x8000;
|
360 |
t0 &= ~0x8000;
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361 |
t1 &= ~0x8000;
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362 |
t0 = (t0 + t1) ^ tmp;
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363 |
*/
|
364 |
|
365 |
static void gen_add16(TCGv t0, TCGv t1) |
366 |
{ |
367 |
TCGv tmp = new_tmp(); |
368 |
tcg_gen_xor_i32(tmp, t0, t1); |
369 |
tcg_gen_andi_i32(tmp, tmp, 0x8000);
|
370 |
tcg_gen_andi_i32(t0, t0, ~0x8000);
|
371 |
tcg_gen_andi_i32(t1, t1, ~0x8000);
|
372 |
tcg_gen_add_i32(t0, t0, t1); |
373 |
tcg_gen_xor_i32(t0, t0, tmp); |
374 |
dead_tmp(tmp); |
375 |
dead_tmp(t1); |
376 |
} |
377 |
|
378 |
#define gen_set_CF(var) tcg_gen_st_i32(var, cpu_env, offsetof(CPUState, CF))
|
379 |
|
380 |
/* Set CF to the top bit of var. */
|
381 |
static void gen_set_CF_bit31(TCGv var) |
382 |
{ |
383 |
TCGv tmp = new_tmp(); |
384 |
tcg_gen_shri_i32(tmp, var, 31);
|
385 |
gen_set_CF(tmp); |
386 |
dead_tmp(tmp); |
387 |
} |
388 |
|
389 |
/* Set N and Z flags from var. */
|
390 |
static inline void gen_logic_CC(TCGv var) |
391 |
{ |
392 |
tcg_gen_st_i32(var, cpu_env, offsetof(CPUState, NF)); |
393 |
tcg_gen_st_i32(var, cpu_env, offsetof(CPUState, ZF)); |
394 |
} |
395 |
|
396 |
/* T0 += T1 + CF. */
|
397 |
static void gen_adc(TCGv t0, TCGv t1) |
398 |
{ |
399 |
TCGv tmp; |
400 |
tcg_gen_add_i32(t0, t0, t1); |
401 |
tmp = load_cpu_field(CF); |
402 |
tcg_gen_add_i32(t0, t0, tmp); |
403 |
dead_tmp(tmp); |
404 |
} |
405 |
|
406 |
/* dest = T0 + T1 + CF. */
|
407 |
static void gen_add_carry(TCGv dest, TCGv t0, TCGv t1) |
408 |
{ |
409 |
TCGv tmp; |
410 |
tcg_gen_add_i32(dest, t0, t1); |
411 |
tmp = load_cpu_field(CF); |
412 |
tcg_gen_add_i32(dest, dest, tmp); |
413 |
dead_tmp(tmp); |
414 |
} |
415 |
|
416 |
/* dest = T0 - T1 + CF - 1. */
|
417 |
static void gen_sub_carry(TCGv dest, TCGv t0, TCGv t1) |
418 |
{ |
419 |
TCGv tmp; |
420 |
tcg_gen_sub_i32(dest, t0, t1); |
421 |
tmp = load_cpu_field(CF); |
422 |
tcg_gen_add_i32(dest, dest, tmp); |
423 |
tcg_gen_subi_i32(dest, dest, 1);
|
424 |
dead_tmp(tmp); |
425 |
} |
426 |
|
427 |
/* FIXME: Implement this natively. */
|
428 |
#define tcg_gen_abs_i32(t0, t1) gen_helper_abs(t0, t1)
|
429 |
|
430 |
static void shifter_out_im(TCGv var, int shift) |
431 |
{ |
432 |
TCGv tmp = new_tmp(); |
433 |
if (shift == 0) { |
434 |
tcg_gen_andi_i32(tmp, var, 1);
|
435 |
} else {
|
436 |
tcg_gen_shri_i32(tmp, var, shift); |
437 |
if (shift != 31) |
438 |
tcg_gen_andi_i32(tmp, tmp, 1);
|
439 |
} |
440 |
gen_set_CF(tmp); |
441 |
dead_tmp(tmp); |
442 |
} |
443 |
|
444 |
/* Shift by immediate. Includes special handling for shift == 0. */
|
445 |
static inline void gen_arm_shift_im(TCGv var, int shiftop, int shift, int flags) |
446 |
{ |
447 |
switch (shiftop) {
|
448 |
case 0: /* LSL */ |
449 |
if (shift != 0) { |
450 |
if (flags)
|
451 |
shifter_out_im(var, 32 - shift);
|
452 |
tcg_gen_shli_i32(var, var, shift); |
453 |
} |
454 |
break;
|
455 |
case 1: /* LSR */ |
456 |
if (shift == 0) { |
457 |
if (flags) {
|
458 |
tcg_gen_shri_i32(var, var, 31);
|
459 |
gen_set_CF(var); |
460 |
} |
461 |
tcg_gen_movi_i32(var, 0);
|
462 |
} else {
|
463 |
if (flags)
|
464 |
shifter_out_im(var, shift - 1);
|
465 |
tcg_gen_shri_i32(var, var, shift); |
466 |
} |
467 |
break;
|
468 |
case 2: /* ASR */ |
469 |
if (shift == 0) |
470 |
shift = 32;
|
471 |
if (flags)
|
472 |
shifter_out_im(var, shift - 1);
|
473 |
if (shift == 32) |
474 |
shift = 31;
|
475 |
tcg_gen_sari_i32(var, var, shift); |
476 |
break;
|
477 |
case 3: /* ROR/RRX */ |
478 |
if (shift != 0) { |
479 |
if (flags)
|
480 |
shifter_out_im(var, shift - 1);
|
481 |
tcg_gen_rotri_i32(var, var, shift); break;
|
482 |
} else {
|
483 |
TCGv tmp = load_cpu_field(CF); |
484 |
if (flags)
|
485 |
shifter_out_im(var, 0);
|
486 |
tcg_gen_shri_i32(var, var, 1);
|
487 |
tcg_gen_shli_i32(tmp, tmp, 31);
|
488 |
tcg_gen_or_i32(var, var, tmp); |
489 |
dead_tmp(tmp); |
490 |
} |
491 |
} |
492 |
}; |
493 |
|
494 |
static inline void gen_arm_shift_reg(TCGv var, int shiftop, |
495 |
TCGv shift, int flags)
|
496 |
{ |
497 |
if (flags) {
|
498 |
switch (shiftop) {
|
499 |
case 0: gen_helper_shl_cc(var, var, shift); break; |
500 |
case 1: gen_helper_shr_cc(var, var, shift); break; |
501 |
case 2: gen_helper_sar_cc(var, var, shift); break; |
502 |
case 3: gen_helper_ror_cc(var, var, shift); break; |
503 |
} |
504 |
} else {
|
505 |
switch (shiftop) {
|
506 |
case 0: gen_helper_shl(var, var, shift); break; |
507 |
case 1: gen_helper_shr(var, var, shift); break; |
508 |
case 2: gen_helper_sar(var, var, shift); break; |
509 |
case 3: tcg_gen_andi_i32(shift, shift, 0x1f); |
510 |
tcg_gen_rotr_i32(var, var, shift); break;
|
511 |
} |
512 |
} |
513 |
dead_tmp(shift); |
514 |
} |
515 |
|
516 |
#define PAS_OP(pfx) \
|
517 |
switch (op2) { \
|
518 |
case 0: gen_pas_helper(glue(pfx,add16)); break; \ |
519 |
case 1: gen_pas_helper(glue(pfx,addsubx)); break; \ |
520 |
case 2: gen_pas_helper(glue(pfx,subaddx)); break; \ |
521 |
case 3: gen_pas_helper(glue(pfx,sub16)); break; \ |
522 |
case 4: gen_pas_helper(glue(pfx,add8)); break; \ |
523 |
case 7: gen_pas_helper(glue(pfx,sub8)); break; \ |
524 |
} |
525 |
static void gen_arm_parallel_addsub(int op1, int op2, TCGv a, TCGv b) |
526 |
{ |
527 |
TCGv_ptr tmp; |
528 |
|
529 |
switch (op1) {
|
530 |
#define gen_pas_helper(name) glue(gen_helper_,name)(a, a, b, tmp)
|
531 |
case 1: |
532 |
tmp = tcg_temp_new_ptr(); |
533 |
tcg_gen_addi_ptr(tmp, cpu_env, offsetof(CPUState, GE)); |
534 |
PAS_OP(s) |
535 |
tcg_temp_free_ptr(tmp); |
536 |
break;
|
537 |
case 5: |
538 |
tmp = tcg_temp_new_ptr(); |
539 |
tcg_gen_addi_ptr(tmp, cpu_env, offsetof(CPUState, GE)); |
540 |
PAS_OP(u) |
541 |
tcg_temp_free_ptr(tmp); |
542 |
break;
|
543 |
#undef gen_pas_helper
|
544 |
#define gen_pas_helper(name) glue(gen_helper_,name)(a, a, b)
|
545 |
case 2: |
546 |
PAS_OP(q); |
547 |
break;
|
548 |
case 3: |
549 |
PAS_OP(sh); |
550 |
break;
|
551 |
case 6: |
552 |
PAS_OP(uq); |
553 |
break;
|
554 |
case 7: |
555 |
PAS_OP(uh); |
556 |
break;
|
557 |
#undef gen_pas_helper
|
558 |
} |
559 |
} |
560 |
#undef PAS_OP
|
561 |
|
562 |
/* For unknown reasons Arm and Thumb-2 use arbitrarily different encodings. */
|
563 |
#define PAS_OP(pfx) \
|
564 |
switch (op2) { \
|
565 |
case 0: gen_pas_helper(glue(pfx,add8)); break; \ |
566 |
case 1: gen_pas_helper(glue(pfx,add16)); break; \ |
567 |
case 2: gen_pas_helper(glue(pfx,addsubx)); break; \ |
568 |
case 4: gen_pas_helper(glue(pfx,sub8)); break; \ |
569 |
case 5: gen_pas_helper(glue(pfx,sub16)); break; \ |
570 |
case 6: gen_pas_helper(glue(pfx,subaddx)); break; \ |
571 |
} |
572 |
static void gen_thumb2_parallel_addsub(int op1, int op2, TCGv a, TCGv b) |
573 |
{ |
574 |
TCGv_ptr tmp; |
575 |
|
576 |
switch (op1) {
|
577 |
#define gen_pas_helper(name) glue(gen_helper_,name)(a, a, b, tmp)
|
578 |
case 0: |
579 |
tmp = tcg_temp_new_ptr(); |
580 |
tcg_gen_addi_ptr(tmp, cpu_env, offsetof(CPUState, GE)); |
581 |
PAS_OP(s) |
582 |
tcg_temp_free_ptr(tmp); |
583 |
break;
|
584 |
case 4: |
585 |
tmp = tcg_temp_new_ptr(); |
586 |
tcg_gen_addi_ptr(tmp, cpu_env, offsetof(CPUState, GE)); |
587 |
PAS_OP(u) |
588 |
tcg_temp_free_ptr(tmp); |
589 |
break;
|
590 |
#undef gen_pas_helper
|
591 |
#define gen_pas_helper(name) glue(gen_helper_,name)(a, a, b)
|
592 |
case 1: |
593 |
PAS_OP(q); |
594 |
break;
|
595 |
case 2: |
596 |
PAS_OP(sh); |
597 |
break;
|
598 |
case 5: |
599 |
PAS_OP(uq); |
600 |
break;
|
601 |
case 6: |
602 |
PAS_OP(uh); |
603 |
break;
|
604 |
#undef gen_pas_helper
|
605 |
} |
606 |
} |
607 |
#undef PAS_OP
|
608 |
|
609 |
static void gen_test_cc(int cc, int label) |
610 |
{ |
611 |
TCGv tmp; |
612 |
TCGv tmp2; |
613 |
int inv;
|
614 |
|
615 |
switch (cc) {
|
616 |
case 0: /* eq: Z */ |
617 |
tmp = load_cpu_field(ZF); |
618 |
tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label);
|
619 |
break;
|
620 |
case 1: /* ne: !Z */ |
621 |
tmp = load_cpu_field(ZF); |
622 |
tcg_gen_brcondi_i32(TCG_COND_NE, tmp, 0, label);
|
623 |
break;
|
624 |
case 2: /* cs: C */ |
625 |
tmp = load_cpu_field(CF); |
626 |
tcg_gen_brcondi_i32(TCG_COND_NE, tmp, 0, label);
|
627 |
break;
|
628 |
case 3: /* cc: !C */ |
629 |
tmp = load_cpu_field(CF); |
630 |
tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label);
|
631 |
break;
|
632 |
case 4: /* mi: N */ |
633 |
tmp = load_cpu_field(NF); |
634 |
tcg_gen_brcondi_i32(TCG_COND_LT, tmp, 0, label);
|
635 |
break;
|
636 |
case 5: /* pl: !N */ |
637 |
tmp = load_cpu_field(NF); |
638 |
tcg_gen_brcondi_i32(TCG_COND_GE, tmp, 0, label);
|
639 |
break;
|
640 |
case 6: /* vs: V */ |
641 |
tmp = load_cpu_field(VF); |
642 |
tcg_gen_brcondi_i32(TCG_COND_LT, tmp, 0, label);
|
643 |
break;
|
644 |
case 7: /* vc: !V */ |
645 |
tmp = load_cpu_field(VF); |
646 |
tcg_gen_brcondi_i32(TCG_COND_GE, tmp, 0, label);
|
647 |
break;
|
648 |
case 8: /* hi: C && !Z */ |
649 |
inv = gen_new_label(); |
650 |
tmp = load_cpu_field(CF); |
651 |
tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, inv);
|
652 |
dead_tmp(tmp); |
653 |
tmp = load_cpu_field(ZF); |
654 |
tcg_gen_brcondi_i32(TCG_COND_NE, tmp, 0, label);
|
655 |
gen_set_label(inv); |
656 |
break;
|
657 |
case 9: /* ls: !C || Z */ |
658 |
tmp = load_cpu_field(CF); |
659 |
tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label);
|
660 |
dead_tmp(tmp); |
661 |
tmp = load_cpu_field(ZF); |
662 |
tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label);
|
663 |
break;
|
664 |
case 10: /* ge: N == V -> N ^ V == 0 */ |
665 |
tmp = load_cpu_field(VF); |
666 |
tmp2 = load_cpu_field(NF); |
667 |
tcg_gen_xor_i32(tmp, tmp, tmp2); |
668 |
dead_tmp(tmp2); |
669 |
tcg_gen_brcondi_i32(TCG_COND_GE, tmp, 0, label);
|
670 |
break;
|
671 |
case 11: /* lt: N != V -> N ^ V != 0 */ |
672 |
tmp = load_cpu_field(VF); |
673 |
tmp2 = load_cpu_field(NF); |
674 |
tcg_gen_xor_i32(tmp, tmp, tmp2); |
675 |
dead_tmp(tmp2); |
676 |
tcg_gen_brcondi_i32(TCG_COND_LT, tmp, 0, label);
|
677 |
break;
|
678 |
case 12: /* gt: !Z && N == V */ |
679 |
inv = gen_new_label(); |
680 |
tmp = load_cpu_field(ZF); |
681 |
tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, inv);
|
682 |
dead_tmp(tmp); |
683 |
tmp = load_cpu_field(VF); |
684 |
tmp2 = load_cpu_field(NF); |
685 |
tcg_gen_xor_i32(tmp, tmp, tmp2); |
686 |
dead_tmp(tmp2); |
687 |
tcg_gen_brcondi_i32(TCG_COND_GE, tmp, 0, label);
|
688 |
gen_set_label(inv); |
689 |
break;
|
690 |
case 13: /* le: Z || N != V */ |
691 |
tmp = load_cpu_field(ZF); |
692 |
tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label);
|
693 |
dead_tmp(tmp); |
694 |
tmp = load_cpu_field(VF); |
695 |
tmp2 = load_cpu_field(NF); |
696 |
tcg_gen_xor_i32(tmp, tmp, tmp2); |
697 |
dead_tmp(tmp2); |
698 |
tcg_gen_brcondi_i32(TCG_COND_LT, tmp, 0, label);
|
699 |
break;
|
700 |
default:
|
701 |
fprintf(stderr, "Bad condition code 0x%x\n", cc);
|
702 |
abort(); |
703 |
} |
704 |
dead_tmp(tmp); |
705 |
} |
706 |
|
707 |
static const uint8_t table_logic_cc[16] = { |
708 |
1, /* and */ |
709 |
1, /* xor */ |
710 |
0, /* sub */ |
711 |
0, /* rsb */ |
712 |
0, /* add */ |
713 |
0, /* adc */ |
714 |
0, /* sbc */ |
715 |
0, /* rsc */ |
716 |
1, /* andl */ |
717 |
1, /* xorl */ |
718 |
0, /* cmp */ |
719 |
0, /* cmn */ |
720 |
1, /* orr */ |
721 |
1, /* mov */ |
722 |
1, /* bic */ |
723 |
1, /* mvn */ |
724 |
}; |
725 |
|
726 |
/* Set PC and Thumb state from an immediate address. */
|
727 |
static inline void gen_bx_im(DisasContext *s, uint32_t addr) |
728 |
{ |
729 |
TCGv tmp; |
730 |
|
731 |
s->is_jmp = DISAS_UPDATE; |
732 |
if (s->thumb != (addr & 1)) { |
733 |
tmp = new_tmp(); |
734 |
tcg_gen_movi_i32(tmp, addr & 1);
|
735 |
tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUState, thumb)); |
736 |
dead_tmp(tmp); |
737 |
} |
738 |
tcg_gen_movi_i32(cpu_R[15], addr & ~1); |
739 |
} |
740 |
|
741 |
/* Set PC and Thumb state from var. var is marked as dead. */
|
742 |
static inline void gen_bx(DisasContext *s, TCGv var) |
743 |
{ |
744 |
s->is_jmp = DISAS_UPDATE; |
745 |
tcg_gen_andi_i32(cpu_R[15], var, ~1); |
746 |
tcg_gen_andi_i32(var, var, 1);
|
747 |
store_cpu_field(var, thumb); |
748 |
} |
749 |
|
750 |
/* Variant of store_reg which uses branch&exchange logic when storing
|
751 |
to r15 in ARM architecture v7 and above. The source must be a temporary
|
752 |
and will be marked as dead. */
|
753 |
static inline void store_reg_bx(CPUState *env, DisasContext *s, |
754 |
int reg, TCGv var)
|
755 |
{ |
756 |
if (reg == 15 && ENABLE_ARCH_7) { |
757 |
gen_bx(s, var); |
758 |
} else {
|
759 |
store_reg(s, reg, var); |
760 |
} |
761 |
} |
762 |
|
763 |
static inline TCGv gen_ld8s(TCGv addr, int index) |
764 |
{ |
765 |
TCGv tmp = new_tmp(); |
766 |
tcg_gen_qemu_ld8s(tmp, addr, index); |
767 |
return tmp;
|
768 |
} |
769 |
static inline TCGv gen_ld8u(TCGv addr, int index) |
770 |
{ |
771 |
TCGv tmp = new_tmp(); |
772 |
tcg_gen_qemu_ld8u(tmp, addr, index); |
773 |
return tmp;
|
774 |
} |
775 |
static inline TCGv gen_ld16s(TCGv addr, int index) |
776 |
{ |
777 |
TCGv tmp = new_tmp(); |
778 |
tcg_gen_qemu_ld16s(tmp, addr, index); |
779 |
return tmp;
|
780 |
} |
781 |
static inline TCGv gen_ld16u(TCGv addr, int index) |
782 |
{ |
783 |
TCGv tmp = new_tmp(); |
784 |
tcg_gen_qemu_ld16u(tmp, addr, index); |
785 |
return tmp;
|
786 |
} |
787 |
static inline TCGv gen_ld32(TCGv addr, int index) |
788 |
{ |
789 |
TCGv tmp = new_tmp(); |
790 |
tcg_gen_qemu_ld32u(tmp, addr, index); |
791 |
return tmp;
|
792 |
} |
793 |
static inline TCGv_i64 gen_ld64(TCGv addr, int index) |
794 |
{ |
795 |
TCGv_i64 tmp = tcg_temp_new_i64(); |
796 |
tcg_gen_qemu_ld64(tmp, addr, index); |
797 |
return tmp;
|
798 |
} |
799 |
static inline void gen_st8(TCGv val, TCGv addr, int index) |
800 |
{ |
801 |
tcg_gen_qemu_st8(val, addr, index); |
802 |
dead_tmp(val); |
803 |
} |
804 |
static inline void gen_st16(TCGv val, TCGv addr, int index) |
805 |
{ |
806 |
tcg_gen_qemu_st16(val, addr, index); |
807 |
dead_tmp(val); |
808 |
} |
809 |
static inline void gen_st32(TCGv val, TCGv addr, int index) |
810 |
{ |
811 |
tcg_gen_qemu_st32(val, addr, index); |
812 |
dead_tmp(val); |
813 |
} |
814 |
static inline void gen_st64(TCGv_i64 val, TCGv addr, int index) |
815 |
{ |
816 |
tcg_gen_qemu_st64(val, addr, index); |
817 |
tcg_temp_free_i64(val); |
818 |
} |
819 |
|
820 |
static inline void gen_set_pc_im(uint32_t val) |
821 |
{ |
822 |
tcg_gen_movi_i32(cpu_R[15], val);
|
823 |
} |
824 |
|
825 |
/* Force a TB lookup after an instruction that changes the CPU state. */
|
826 |
static inline void gen_lookup_tb(DisasContext *s) |
827 |
{ |
828 |
tcg_gen_movi_i32(cpu_R[15], s->pc & ~1); |
829 |
s->is_jmp = DISAS_UPDATE; |
830 |
} |
831 |
|
832 |
static inline void gen_add_data_offset(DisasContext *s, unsigned int insn, |
833 |
TCGv var) |
834 |
{ |
835 |
int val, rm, shift, shiftop;
|
836 |
TCGv offset; |
837 |
|
838 |
if (!(insn & (1 << 25))) { |
839 |
/* immediate */
|
840 |
val = insn & 0xfff;
|
841 |
if (!(insn & (1 << 23))) |
842 |
val = -val; |
843 |
if (val != 0) |
844 |
tcg_gen_addi_i32(var, var, val); |
845 |
} else {
|
846 |
/* shift/register */
|
847 |
rm = (insn) & 0xf;
|
848 |
shift = (insn >> 7) & 0x1f; |
849 |
shiftop = (insn >> 5) & 3; |
850 |
offset = load_reg(s, rm); |
851 |
gen_arm_shift_im(offset, shiftop, shift, 0);
|
852 |
if (!(insn & (1 << 23))) |
853 |
tcg_gen_sub_i32(var, var, offset); |
854 |
else
|
855 |
tcg_gen_add_i32(var, var, offset); |
856 |
dead_tmp(offset); |
857 |
} |
858 |
} |
859 |
|
860 |
static inline void gen_add_datah_offset(DisasContext *s, unsigned int insn, |
861 |
int extra, TCGv var)
|
862 |
{ |
863 |
int val, rm;
|
864 |
TCGv offset; |
865 |
|
866 |
if (insn & (1 << 22)) { |
867 |
/* immediate */
|
868 |
val = (insn & 0xf) | ((insn >> 4) & 0xf0); |
869 |
if (!(insn & (1 << 23))) |
870 |
val = -val; |
871 |
val += extra; |
872 |
if (val != 0) |
873 |
tcg_gen_addi_i32(var, var, val); |
874 |
} else {
|
875 |
/* register */
|
876 |
if (extra)
|
877 |
tcg_gen_addi_i32(var, var, extra); |
878 |
rm = (insn) & 0xf;
|
879 |
offset = load_reg(s, rm); |
880 |
if (!(insn & (1 << 23))) |
881 |
tcg_gen_sub_i32(var, var, offset); |
882 |
else
|
883 |
tcg_gen_add_i32(var, var, offset); |
884 |
dead_tmp(offset); |
885 |
} |
886 |
} |
887 |
|
888 |
#define VFP_OP2(name) \
|
889 |
static inline void gen_vfp_##name(int dp) \ |
890 |
{ \ |
891 |
if (dp) \
|
892 |
gen_helper_vfp_##name##d(cpu_F0d, cpu_F0d, cpu_F1d, cpu_env); \ |
893 |
else \
|
894 |
gen_helper_vfp_##name##s(cpu_F0s, cpu_F0s, cpu_F1s, cpu_env); \ |
895 |
} |
896 |
|
897 |
VFP_OP2(add) |
898 |
VFP_OP2(sub) |
899 |
VFP_OP2(mul) |
900 |
VFP_OP2(div) |
901 |
|
902 |
#undef VFP_OP2
|
903 |
|
904 |
static inline void gen_vfp_abs(int dp) |
905 |
{ |
906 |
if (dp)
|
907 |
gen_helper_vfp_absd(cpu_F0d, cpu_F0d); |
908 |
else
|
909 |
gen_helper_vfp_abss(cpu_F0s, cpu_F0s); |
910 |
} |
911 |
|
912 |
static inline void gen_vfp_neg(int dp) |
913 |
{ |
914 |
if (dp)
|
915 |
gen_helper_vfp_negd(cpu_F0d, cpu_F0d); |
916 |
else
|
917 |
gen_helper_vfp_negs(cpu_F0s, cpu_F0s); |
918 |
} |
919 |
|
920 |
static inline void gen_vfp_sqrt(int dp) |
921 |
{ |
922 |
if (dp)
|
923 |
gen_helper_vfp_sqrtd(cpu_F0d, cpu_F0d, cpu_env); |
924 |
else
|
925 |
gen_helper_vfp_sqrts(cpu_F0s, cpu_F0s, cpu_env); |
926 |
} |
927 |
|
928 |
static inline void gen_vfp_cmp(int dp) |
929 |
{ |
930 |
if (dp)
|
931 |
gen_helper_vfp_cmpd(cpu_F0d, cpu_F1d, cpu_env); |
932 |
else
|
933 |
gen_helper_vfp_cmps(cpu_F0s, cpu_F1s, cpu_env); |
934 |
} |
935 |
|
936 |
static inline void gen_vfp_cmpe(int dp) |
937 |
{ |
938 |
if (dp)
|
939 |
gen_helper_vfp_cmped(cpu_F0d, cpu_F1d, cpu_env); |
940 |
else
|
941 |
gen_helper_vfp_cmpes(cpu_F0s, cpu_F1s, cpu_env); |
942 |
} |
943 |
|
944 |
static inline void gen_vfp_F1_ld0(int dp) |
945 |
{ |
946 |
if (dp)
|
947 |
tcg_gen_movi_i64(cpu_F1d, 0);
|
948 |
else
|
949 |
tcg_gen_movi_i32(cpu_F1s, 0);
|
950 |
} |
951 |
|
952 |
static inline void gen_vfp_uito(int dp) |
953 |
{ |
954 |
if (dp)
|
955 |
gen_helper_vfp_uitod(cpu_F0d, cpu_F0s, cpu_env); |
956 |
else
|
957 |
gen_helper_vfp_uitos(cpu_F0s, cpu_F0s, cpu_env); |
958 |
} |
959 |
|
960 |
static inline void gen_vfp_sito(int dp) |
961 |
{ |
962 |
if (dp)
|
963 |
gen_helper_vfp_sitod(cpu_F0d, cpu_F0s, cpu_env); |
964 |
else
|
965 |
gen_helper_vfp_sitos(cpu_F0s, cpu_F0s, cpu_env); |
966 |
} |
967 |
|
968 |
static inline void gen_vfp_toui(int dp) |
969 |
{ |
970 |
if (dp)
|
971 |
gen_helper_vfp_touid(cpu_F0s, cpu_F0d, cpu_env); |
972 |
else
|
973 |
gen_helper_vfp_touis(cpu_F0s, cpu_F0s, cpu_env); |
974 |
} |
975 |
|
976 |
static inline void gen_vfp_touiz(int dp) |
977 |
{ |
978 |
if (dp)
|
979 |
gen_helper_vfp_touizd(cpu_F0s, cpu_F0d, cpu_env); |
980 |
else
|
981 |
gen_helper_vfp_touizs(cpu_F0s, cpu_F0s, cpu_env); |
982 |
} |
983 |
|
984 |
static inline void gen_vfp_tosi(int dp) |
985 |
{ |
986 |
if (dp)
|
987 |
gen_helper_vfp_tosid(cpu_F0s, cpu_F0d, cpu_env); |
988 |
else
|
989 |
gen_helper_vfp_tosis(cpu_F0s, cpu_F0s, cpu_env); |
990 |
} |
991 |
|
992 |
static inline void gen_vfp_tosiz(int dp) |
993 |
{ |
994 |
if (dp)
|
995 |
gen_helper_vfp_tosizd(cpu_F0s, cpu_F0d, cpu_env); |
996 |
else
|
997 |
gen_helper_vfp_tosizs(cpu_F0s, cpu_F0s, cpu_env); |
998 |
} |
999 |
|
1000 |
#define VFP_GEN_FIX(name) \
|
1001 |
static inline void gen_vfp_##name(int dp, int shift) \ |
1002 |
{ \ |
1003 |
TCGv tmp_shift = tcg_const_i32(shift); \ |
1004 |
if (dp) \
|
1005 |
gen_helper_vfp_##name##d(cpu_F0d, cpu_F0d, tmp_shift, cpu_env);\ |
1006 |
else \
|
1007 |
gen_helper_vfp_##name##s(cpu_F0s, cpu_F0s, tmp_shift, cpu_env);\ |
1008 |
tcg_temp_free_i32(tmp_shift); \ |
1009 |
} |
1010 |
VFP_GEN_FIX(tosh) |
1011 |
VFP_GEN_FIX(tosl) |
1012 |
VFP_GEN_FIX(touh) |
1013 |
VFP_GEN_FIX(toul) |
1014 |
VFP_GEN_FIX(shto) |
1015 |
VFP_GEN_FIX(slto) |
1016 |
VFP_GEN_FIX(uhto) |
1017 |
VFP_GEN_FIX(ulto) |
1018 |
#undef VFP_GEN_FIX
|
1019 |
|
1020 |
static inline void gen_vfp_ld(DisasContext *s, int dp, TCGv addr) |
1021 |
{ |
1022 |
if (dp)
|
1023 |
tcg_gen_qemu_ld64(cpu_F0d, addr, IS_USER(s)); |
1024 |
else
|
1025 |
tcg_gen_qemu_ld32u(cpu_F0s, addr, IS_USER(s)); |
1026 |
} |
1027 |
|
1028 |
static inline void gen_vfp_st(DisasContext *s, int dp, TCGv addr) |
1029 |
{ |
1030 |
if (dp)
|
1031 |
tcg_gen_qemu_st64(cpu_F0d, addr, IS_USER(s)); |
1032 |
else
|
1033 |
tcg_gen_qemu_st32(cpu_F0s, addr, IS_USER(s)); |
1034 |
} |
1035 |
|
1036 |
static inline long |
1037 |
vfp_reg_offset (int dp, int reg) |
1038 |
{ |
1039 |
if (dp)
|
1040 |
return offsetof(CPUARMState, vfp.regs[reg]);
|
1041 |
else if (reg & 1) { |
1042 |
return offsetof(CPUARMState, vfp.regs[reg >> 1]) |
1043 |
+ offsetof(CPU_DoubleU, l.upper); |
1044 |
} else {
|
1045 |
return offsetof(CPUARMState, vfp.regs[reg >> 1]) |
1046 |
+ offsetof(CPU_DoubleU, l.lower); |
1047 |
} |
1048 |
} |
1049 |
|
1050 |
/* Return the offset of a 32-bit piece of a NEON register.
|
1051 |
zero is the least significant end of the register. */
|
1052 |
static inline long |
1053 |
neon_reg_offset (int reg, int n) |
1054 |
{ |
1055 |
int sreg;
|
1056 |
sreg = reg * 2 + n;
|
1057 |
return vfp_reg_offset(0, sreg); |
1058 |
} |
1059 |
|
1060 |
static TCGv neon_load_reg(int reg, int pass) |
1061 |
{ |
1062 |
TCGv tmp = new_tmp(); |
1063 |
tcg_gen_ld_i32(tmp, cpu_env, neon_reg_offset(reg, pass)); |
1064 |
return tmp;
|
1065 |
} |
1066 |
|
1067 |
static void neon_store_reg(int reg, int pass, TCGv var) |
1068 |
{ |
1069 |
tcg_gen_st_i32(var, cpu_env, neon_reg_offset(reg, pass)); |
1070 |
dead_tmp(var); |
1071 |
} |
1072 |
|
1073 |
static inline void neon_load_reg64(TCGv_i64 var, int reg) |
1074 |
{ |
1075 |
tcg_gen_ld_i64(var, cpu_env, vfp_reg_offset(1, reg));
|
1076 |
} |
1077 |
|
1078 |
static inline void neon_store_reg64(TCGv_i64 var, int reg) |
1079 |
{ |
1080 |
tcg_gen_st_i64(var, cpu_env, vfp_reg_offset(1, reg));
|
1081 |
} |
1082 |
|
1083 |
#define tcg_gen_ld_f32 tcg_gen_ld_i32
|
1084 |
#define tcg_gen_ld_f64 tcg_gen_ld_i64
|
1085 |
#define tcg_gen_st_f32 tcg_gen_st_i32
|
1086 |
#define tcg_gen_st_f64 tcg_gen_st_i64
|
1087 |
|
1088 |
static inline void gen_mov_F0_vreg(int dp, int reg) |
1089 |
{ |
1090 |
if (dp)
|
1091 |
tcg_gen_ld_f64(cpu_F0d, cpu_env, vfp_reg_offset(dp, reg)); |
1092 |
else
|
1093 |
tcg_gen_ld_f32(cpu_F0s, cpu_env, vfp_reg_offset(dp, reg)); |
1094 |
} |
1095 |
|
1096 |
static inline void gen_mov_F1_vreg(int dp, int reg) |
1097 |
{ |
1098 |
if (dp)
|
1099 |
tcg_gen_ld_f64(cpu_F1d, cpu_env, vfp_reg_offset(dp, reg)); |
1100 |
else
|
1101 |
tcg_gen_ld_f32(cpu_F1s, cpu_env, vfp_reg_offset(dp, reg)); |
1102 |
} |
1103 |
|
1104 |
static inline void gen_mov_vreg_F0(int dp, int reg) |
1105 |
{ |
1106 |
if (dp)
|
1107 |
tcg_gen_st_f64(cpu_F0d, cpu_env, vfp_reg_offset(dp, reg)); |
1108 |
else
|
1109 |
tcg_gen_st_f32(cpu_F0s, cpu_env, vfp_reg_offset(dp, reg)); |
1110 |
} |
1111 |
|
1112 |
#define ARM_CP_RW_BIT (1 << 20) |
1113 |
|
1114 |
static inline void iwmmxt_load_reg(TCGv_i64 var, int reg) |
1115 |
{ |
1116 |
tcg_gen_ld_i64(var, cpu_env, offsetof(CPUState, iwmmxt.regs[reg])); |
1117 |
} |
1118 |
|
1119 |
static inline void iwmmxt_store_reg(TCGv_i64 var, int reg) |
1120 |
{ |
1121 |
tcg_gen_st_i64(var, cpu_env, offsetof(CPUState, iwmmxt.regs[reg])); |
1122 |
} |
1123 |
|
1124 |
static inline TCGv iwmmxt_load_creg(int reg) |
1125 |
{ |
1126 |
TCGv var = new_tmp(); |
1127 |
tcg_gen_ld_i32(var, cpu_env, offsetof(CPUState, iwmmxt.cregs[reg])); |
1128 |
return var;
|
1129 |
} |
1130 |
|
1131 |
static inline void iwmmxt_store_creg(int reg, TCGv var) |
1132 |
{ |
1133 |
tcg_gen_st_i32(var, cpu_env, offsetof(CPUState, iwmmxt.cregs[reg])); |
1134 |
} |
1135 |
|
1136 |
static inline void gen_op_iwmmxt_movq_wRn_M0(int rn) |
1137 |
{ |
1138 |
iwmmxt_store_reg(cpu_M0, rn); |
1139 |
} |
1140 |
|
1141 |
static inline void gen_op_iwmmxt_movq_M0_wRn(int rn) |
1142 |
{ |
1143 |
iwmmxt_load_reg(cpu_M0, rn); |
1144 |
} |
1145 |
|
1146 |
static inline void gen_op_iwmmxt_orq_M0_wRn(int rn) |
1147 |
{ |
1148 |
iwmmxt_load_reg(cpu_V1, rn); |
1149 |
tcg_gen_or_i64(cpu_M0, cpu_M0, cpu_V1); |
1150 |
} |
1151 |
|
1152 |
static inline void gen_op_iwmmxt_andq_M0_wRn(int rn) |
1153 |
{ |
1154 |
iwmmxt_load_reg(cpu_V1, rn); |
1155 |
tcg_gen_and_i64(cpu_M0, cpu_M0, cpu_V1); |
1156 |
} |
1157 |
|
1158 |
static inline void gen_op_iwmmxt_xorq_M0_wRn(int rn) |
1159 |
{ |
1160 |
iwmmxt_load_reg(cpu_V1, rn); |
1161 |
tcg_gen_xor_i64(cpu_M0, cpu_M0, cpu_V1); |
1162 |
} |
1163 |
|
1164 |
#define IWMMXT_OP(name) \
|
1165 |
static inline void gen_op_iwmmxt_##name##_M0_wRn(int rn) \ |
1166 |
{ \ |
1167 |
iwmmxt_load_reg(cpu_V1, rn); \ |
1168 |
gen_helper_iwmmxt_##name(cpu_M0, cpu_M0, cpu_V1); \ |
1169 |
} |
1170 |
|
1171 |
#define IWMMXT_OP_ENV(name) \
|
1172 |
static inline void gen_op_iwmmxt_##name##_M0_wRn(int rn) \ |
1173 |
{ \ |
1174 |
iwmmxt_load_reg(cpu_V1, rn); \ |
1175 |
gen_helper_iwmmxt_##name(cpu_M0, cpu_env, cpu_M0, cpu_V1); \ |
1176 |
} |
1177 |
|
1178 |
#define IWMMXT_OP_ENV_SIZE(name) \
|
1179 |
IWMMXT_OP_ENV(name##b) \ |
1180 |
IWMMXT_OP_ENV(name##w) \ |
1181 |
IWMMXT_OP_ENV(name##l) |
1182 |
|
1183 |
#define IWMMXT_OP_ENV1(name) \
|
1184 |
static inline void gen_op_iwmmxt_##name##_M0(void) \ |
1185 |
{ \ |
1186 |
gen_helper_iwmmxt_##name(cpu_M0, cpu_env, cpu_M0); \ |
1187 |
} |
1188 |
|
1189 |
IWMMXT_OP(maddsq) |
1190 |
IWMMXT_OP(madduq) |
1191 |
IWMMXT_OP(sadb) |
1192 |
IWMMXT_OP(sadw) |
1193 |
IWMMXT_OP(mulslw) |
1194 |
IWMMXT_OP(mulshw) |
1195 |
IWMMXT_OP(mululw) |
1196 |
IWMMXT_OP(muluhw) |
1197 |
IWMMXT_OP(macsw) |
1198 |
IWMMXT_OP(macuw) |
1199 |
|
1200 |
IWMMXT_OP_ENV_SIZE(unpackl) |
1201 |
IWMMXT_OP_ENV_SIZE(unpackh) |
1202 |
|
1203 |
IWMMXT_OP_ENV1(unpacklub) |
1204 |
IWMMXT_OP_ENV1(unpackluw) |
1205 |
IWMMXT_OP_ENV1(unpacklul) |
1206 |
IWMMXT_OP_ENV1(unpackhub) |
1207 |
IWMMXT_OP_ENV1(unpackhuw) |
1208 |
IWMMXT_OP_ENV1(unpackhul) |
1209 |
IWMMXT_OP_ENV1(unpacklsb) |
1210 |
IWMMXT_OP_ENV1(unpacklsw) |
1211 |
IWMMXT_OP_ENV1(unpacklsl) |
1212 |
IWMMXT_OP_ENV1(unpackhsb) |
1213 |
IWMMXT_OP_ENV1(unpackhsw) |
1214 |
IWMMXT_OP_ENV1(unpackhsl) |
1215 |
|
1216 |
IWMMXT_OP_ENV_SIZE(cmpeq) |
1217 |
IWMMXT_OP_ENV_SIZE(cmpgtu) |
1218 |
IWMMXT_OP_ENV_SIZE(cmpgts) |
1219 |
|
1220 |
IWMMXT_OP_ENV_SIZE(mins) |
1221 |
IWMMXT_OP_ENV_SIZE(minu) |
1222 |
IWMMXT_OP_ENV_SIZE(maxs) |
1223 |
IWMMXT_OP_ENV_SIZE(maxu) |
1224 |
|
1225 |
IWMMXT_OP_ENV_SIZE(subn) |
1226 |
IWMMXT_OP_ENV_SIZE(addn) |
1227 |
IWMMXT_OP_ENV_SIZE(subu) |
1228 |
IWMMXT_OP_ENV_SIZE(addu) |
1229 |
IWMMXT_OP_ENV_SIZE(subs) |
1230 |
IWMMXT_OP_ENV_SIZE(adds) |
1231 |
|
1232 |
IWMMXT_OP_ENV(avgb0) |
1233 |
IWMMXT_OP_ENV(avgb1) |
1234 |
IWMMXT_OP_ENV(avgw0) |
1235 |
IWMMXT_OP_ENV(avgw1) |
1236 |
|
1237 |
IWMMXT_OP(msadb) |
1238 |
|
1239 |
IWMMXT_OP_ENV(packuw) |
1240 |
IWMMXT_OP_ENV(packul) |
1241 |
IWMMXT_OP_ENV(packuq) |
1242 |
IWMMXT_OP_ENV(packsw) |
1243 |
IWMMXT_OP_ENV(packsl) |
1244 |
IWMMXT_OP_ENV(packsq) |
1245 |
|
1246 |
static void gen_op_iwmmxt_set_mup(void) |
1247 |
{ |
1248 |
TCGv tmp; |
1249 |
tmp = load_cpu_field(iwmmxt.cregs[ARM_IWMMXT_wCon]); |
1250 |
tcg_gen_ori_i32(tmp, tmp, 2);
|
1251 |
store_cpu_field(tmp, iwmmxt.cregs[ARM_IWMMXT_wCon]); |
1252 |
} |
1253 |
|
1254 |
static void gen_op_iwmmxt_set_cup(void) |
1255 |
{ |
1256 |
TCGv tmp; |
1257 |
tmp = load_cpu_field(iwmmxt.cregs[ARM_IWMMXT_wCon]); |
1258 |
tcg_gen_ori_i32(tmp, tmp, 1);
|
1259 |
store_cpu_field(tmp, iwmmxt.cregs[ARM_IWMMXT_wCon]); |
1260 |
} |
1261 |
|
1262 |
static void gen_op_iwmmxt_setpsr_nz(void) |
1263 |
{ |
1264 |
TCGv tmp = new_tmp(); |
1265 |
gen_helper_iwmmxt_setpsr_nz(tmp, cpu_M0); |
1266 |
store_cpu_field(tmp, iwmmxt.cregs[ARM_IWMMXT_wCASF]); |
1267 |
} |
1268 |
|
1269 |
static inline void gen_op_iwmmxt_addl_M0_wRn(int rn) |
1270 |
{ |
1271 |
iwmmxt_load_reg(cpu_V1, rn); |
1272 |
tcg_gen_ext32u_i64(cpu_V1, cpu_V1); |
1273 |
tcg_gen_add_i64(cpu_M0, cpu_M0, cpu_V1); |
1274 |
} |
1275 |
|
1276 |
static inline int gen_iwmmxt_address(DisasContext *s, uint32_t insn, TCGv dest) |
1277 |
{ |
1278 |
int rd;
|
1279 |
uint32_t offset; |
1280 |
TCGv tmp; |
1281 |
|
1282 |
rd = (insn >> 16) & 0xf; |
1283 |
tmp = load_reg(s, rd); |
1284 |
|
1285 |
offset = (insn & 0xff) << ((insn >> 7) & 2); |
1286 |
if (insn & (1 << 24)) { |
1287 |
/* Pre indexed */
|
1288 |
if (insn & (1 << 23)) |
1289 |
tcg_gen_addi_i32(tmp, tmp, offset); |
1290 |
else
|
1291 |
tcg_gen_addi_i32(tmp, tmp, -offset); |
1292 |
tcg_gen_mov_i32(dest, tmp); |
1293 |
if (insn & (1 << 21)) |
1294 |
store_reg(s, rd, tmp); |
1295 |
else
|
1296 |
dead_tmp(tmp); |
1297 |
} else if (insn & (1 << 21)) { |
1298 |
/* Post indexed */
|
1299 |
tcg_gen_mov_i32(dest, tmp); |
1300 |
if (insn & (1 << 23)) |
1301 |
tcg_gen_addi_i32(tmp, tmp, offset); |
1302 |
else
|
1303 |
tcg_gen_addi_i32(tmp, tmp, -offset); |
1304 |
store_reg(s, rd, tmp); |
1305 |
} else if (!(insn & (1 << 23))) |
1306 |
return 1; |
1307 |
return 0; |
1308 |
} |
1309 |
|
1310 |
static inline int gen_iwmmxt_shift(uint32_t insn, uint32_t mask, TCGv dest) |
1311 |
{ |
1312 |
int rd = (insn >> 0) & 0xf; |
1313 |
TCGv tmp; |
1314 |
|
1315 |
if (insn & (1 << 8)) { |
1316 |
if (rd < ARM_IWMMXT_wCGR0 || rd > ARM_IWMMXT_wCGR3) {
|
1317 |
return 1; |
1318 |
} else {
|
1319 |
tmp = iwmmxt_load_creg(rd); |
1320 |
} |
1321 |
} else {
|
1322 |
tmp = new_tmp(); |
1323 |
iwmmxt_load_reg(cpu_V0, rd); |
1324 |
tcg_gen_trunc_i64_i32(tmp, cpu_V0); |
1325 |
} |
1326 |
tcg_gen_andi_i32(tmp, tmp, mask); |
1327 |
tcg_gen_mov_i32(dest, tmp); |
1328 |
dead_tmp(tmp); |
1329 |
return 0; |
1330 |
} |
1331 |
|
1332 |
/* Disassemble an iwMMXt instruction. Returns nonzero if an error occured
|
1333 |
(ie. an undefined instruction). */
|
1334 |
static int disas_iwmmxt_insn(CPUState *env, DisasContext *s, uint32_t insn) |
1335 |
{ |
1336 |
int rd, wrd;
|
1337 |
int rdhi, rdlo, rd0, rd1, i;
|
1338 |
TCGv addr; |
1339 |
TCGv tmp, tmp2, tmp3; |
1340 |
|
1341 |
if ((insn & 0x0e000e00) == 0x0c000000) { |
1342 |
if ((insn & 0x0fe00ff0) == 0x0c400000) { |
1343 |
wrd = insn & 0xf;
|
1344 |
rdlo = (insn >> 12) & 0xf; |
1345 |
rdhi = (insn >> 16) & 0xf; |
1346 |
if (insn & ARM_CP_RW_BIT) { /* TMRRC */ |
1347 |
iwmmxt_load_reg(cpu_V0, wrd); |
1348 |
tcg_gen_trunc_i64_i32(cpu_R[rdlo], cpu_V0); |
1349 |
tcg_gen_shri_i64(cpu_V0, cpu_V0, 32);
|
1350 |
tcg_gen_trunc_i64_i32(cpu_R[rdhi], cpu_V0); |
1351 |
} else { /* TMCRR */ |
1352 |
tcg_gen_concat_i32_i64(cpu_V0, cpu_R[rdlo], cpu_R[rdhi]); |
1353 |
iwmmxt_store_reg(cpu_V0, wrd); |
1354 |
gen_op_iwmmxt_set_mup(); |
1355 |
} |
1356 |
return 0; |
1357 |
} |
1358 |
|
1359 |
wrd = (insn >> 12) & 0xf; |
1360 |
addr = new_tmp(); |
1361 |
if (gen_iwmmxt_address(s, insn, addr)) {
|
1362 |
dead_tmp(addr); |
1363 |
return 1; |
1364 |
} |
1365 |
if (insn & ARM_CP_RW_BIT) {
|
1366 |
if ((insn >> 28) == 0xf) { /* WLDRW wCx */ |
1367 |
tmp = new_tmp(); |
1368 |
tcg_gen_qemu_ld32u(tmp, addr, IS_USER(s)); |
1369 |
iwmmxt_store_creg(wrd, tmp); |
1370 |
} else {
|
1371 |
i = 1;
|
1372 |
if (insn & (1 << 8)) { |
1373 |
if (insn & (1 << 22)) { /* WLDRD */ |
1374 |
tcg_gen_qemu_ld64(cpu_M0, addr, IS_USER(s)); |
1375 |
i = 0;
|
1376 |
} else { /* WLDRW wRd */ |
1377 |
tmp = gen_ld32(addr, IS_USER(s)); |
1378 |
} |
1379 |
} else {
|
1380 |
if (insn & (1 << 22)) { /* WLDRH */ |
1381 |
tmp = gen_ld16u(addr, IS_USER(s)); |
1382 |
} else { /* WLDRB */ |
1383 |
tmp = gen_ld8u(addr, IS_USER(s)); |
1384 |
} |
1385 |
} |
1386 |
if (i) {
|
1387 |
tcg_gen_extu_i32_i64(cpu_M0, tmp); |
1388 |
dead_tmp(tmp); |
1389 |
} |
1390 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
1391 |
} |
1392 |
} else {
|
1393 |
if ((insn >> 28) == 0xf) { /* WSTRW wCx */ |
1394 |
tmp = iwmmxt_load_creg(wrd); |
1395 |
gen_st32(tmp, addr, IS_USER(s)); |
1396 |
} else {
|
1397 |
gen_op_iwmmxt_movq_M0_wRn(wrd); |
1398 |
tmp = new_tmp(); |
1399 |
if (insn & (1 << 8)) { |
1400 |
if (insn & (1 << 22)) { /* WSTRD */ |
1401 |
dead_tmp(tmp); |
1402 |
tcg_gen_qemu_st64(cpu_M0, addr, IS_USER(s)); |
1403 |
} else { /* WSTRW wRd */ |
1404 |
tcg_gen_trunc_i64_i32(tmp, cpu_M0); |
1405 |
gen_st32(tmp, addr, IS_USER(s)); |
1406 |
} |
1407 |
} else {
|
1408 |
if (insn & (1 << 22)) { /* WSTRH */ |
1409 |
tcg_gen_trunc_i64_i32(tmp, cpu_M0); |
1410 |
gen_st16(tmp, addr, IS_USER(s)); |
1411 |
} else { /* WSTRB */ |
1412 |
tcg_gen_trunc_i64_i32(tmp, cpu_M0); |
1413 |
gen_st8(tmp, addr, IS_USER(s)); |
1414 |
} |
1415 |
} |
1416 |
} |
1417 |
} |
1418 |
return 0; |
1419 |
} |
1420 |
|
1421 |
if ((insn & 0x0f000000) != 0x0e000000) |
1422 |
return 1; |
1423 |
|
1424 |
switch (((insn >> 12) & 0xf00) | ((insn >> 4) & 0xff)) { |
1425 |
case 0x000: /* WOR */ |
1426 |
wrd = (insn >> 12) & 0xf; |
1427 |
rd0 = (insn >> 0) & 0xf; |
1428 |
rd1 = (insn >> 16) & 0xf; |
1429 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
1430 |
gen_op_iwmmxt_orq_M0_wRn(rd1); |
1431 |
gen_op_iwmmxt_setpsr_nz(); |
1432 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
1433 |
gen_op_iwmmxt_set_mup(); |
1434 |
gen_op_iwmmxt_set_cup(); |
1435 |
break;
|
1436 |
case 0x011: /* TMCR */ |
1437 |
if (insn & 0xf) |
1438 |
return 1; |
1439 |
rd = (insn >> 12) & 0xf; |
1440 |
wrd = (insn >> 16) & 0xf; |
1441 |
switch (wrd) {
|
1442 |
case ARM_IWMMXT_wCID:
|
1443 |
case ARM_IWMMXT_wCASF:
|
1444 |
break;
|
1445 |
case ARM_IWMMXT_wCon:
|
1446 |
gen_op_iwmmxt_set_cup(); |
1447 |
/* Fall through. */
|
1448 |
case ARM_IWMMXT_wCSSF:
|
1449 |
tmp = iwmmxt_load_creg(wrd); |
1450 |
tmp2 = load_reg(s, rd); |
1451 |
tcg_gen_andc_i32(tmp, tmp, tmp2); |
1452 |
dead_tmp(tmp2); |
1453 |
iwmmxt_store_creg(wrd, tmp); |
1454 |
break;
|
1455 |
case ARM_IWMMXT_wCGR0:
|
1456 |
case ARM_IWMMXT_wCGR1:
|
1457 |
case ARM_IWMMXT_wCGR2:
|
1458 |
case ARM_IWMMXT_wCGR3:
|
1459 |
gen_op_iwmmxt_set_cup(); |
1460 |
tmp = load_reg(s, rd); |
1461 |
iwmmxt_store_creg(wrd, tmp); |
1462 |
break;
|
1463 |
default:
|
1464 |
return 1; |
1465 |
} |
1466 |
break;
|
1467 |
case 0x100: /* WXOR */ |
1468 |
wrd = (insn >> 12) & 0xf; |
1469 |
rd0 = (insn >> 0) & 0xf; |
1470 |
rd1 = (insn >> 16) & 0xf; |
1471 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
1472 |
gen_op_iwmmxt_xorq_M0_wRn(rd1); |
1473 |
gen_op_iwmmxt_setpsr_nz(); |
1474 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
1475 |
gen_op_iwmmxt_set_mup(); |
1476 |
gen_op_iwmmxt_set_cup(); |
1477 |
break;
|
1478 |
case 0x111: /* TMRC */ |
1479 |
if (insn & 0xf) |
1480 |
return 1; |
1481 |
rd = (insn >> 12) & 0xf; |
1482 |
wrd = (insn >> 16) & 0xf; |
1483 |
tmp = iwmmxt_load_creg(wrd); |
1484 |
store_reg(s, rd, tmp); |
1485 |
break;
|
1486 |
case 0x300: /* WANDN */ |
1487 |
wrd = (insn >> 12) & 0xf; |
1488 |
rd0 = (insn >> 0) & 0xf; |
1489 |
rd1 = (insn >> 16) & 0xf; |
1490 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
1491 |
tcg_gen_neg_i64(cpu_M0, cpu_M0); |
1492 |
gen_op_iwmmxt_andq_M0_wRn(rd1); |
1493 |
gen_op_iwmmxt_setpsr_nz(); |
1494 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
1495 |
gen_op_iwmmxt_set_mup(); |
1496 |
gen_op_iwmmxt_set_cup(); |
1497 |
break;
|
1498 |
case 0x200: /* WAND */ |
1499 |
wrd = (insn >> 12) & 0xf; |
1500 |
rd0 = (insn >> 0) & 0xf; |
1501 |
rd1 = (insn >> 16) & 0xf; |
1502 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
1503 |
gen_op_iwmmxt_andq_M0_wRn(rd1); |
1504 |
gen_op_iwmmxt_setpsr_nz(); |
1505 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
1506 |
gen_op_iwmmxt_set_mup(); |
1507 |
gen_op_iwmmxt_set_cup(); |
1508 |
break;
|
1509 |
case 0x810: case 0xa10: /* WMADD */ |
1510 |
wrd = (insn >> 12) & 0xf; |
1511 |
rd0 = (insn >> 0) & 0xf; |
1512 |
rd1 = (insn >> 16) & 0xf; |
1513 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
1514 |
if (insn & (1 << 21)) |
1515 |
gen_op_iwmmxt_maddsq_M0_wRn(rd1); |
1516 |
else
|
1517 |
gen_op_iwmmxt_madduq_M0_wRn(rd1); |
1518 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
1519 |
gen_op_iwmmxt_set_mup(); |
1520 |
break;
|
1521 |
case 0x10e: case 0x50e: case 0x90e: case 0xd0e: /* WUNPCKIL */ |
1522 |
wrd = (insn >> 12) & 0xf; |
1523 |
rd0 = (insn >> 16) & 0xf; |
1524 |
rd1 = (insn >> 0) & 0xf; |
1525 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
1526 |
switch ((insn >> 22) & 3) { |
1527 |
case 0: |
1528 |
gen_op_iwmmxt_unpacklb_M0_wRn(rd1); |
1529 |
break;
|
1530 |
case 1: |
1531 |
gen_op_iwmmxt_unpacklw_M0_wRn(rd1); |
1532 |
break;
|
1533 |
case 2: |
1534 |
gen_op_iwmmxt_unpackll_M0_wRn(rd1); |
1535 |
break;
|
1536 |
case 3: |
1537 |
return 1; |
1538 |
} |
1539 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
1540 |
gen_op_iwmmxt_set_mup(); |
1541 |
gen_op_iwmmxt_set_cup(); |
1542 |
break;
|
1543 |
case 0x10c: case 0x50c: case 0x90c: case 0xd0c: /* WUNPCKIH */ |
1544 |
wrd = (insn >> 12) & 0xf; |
1545 |
rd0 = (insn >> 16) & 0xf; |
1546 |
rd1 = (insn >> 0) & 0xf; |
1547 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
1548 |
switch ((insn >> 22) & 3) { |
1549 |
case 0: |
1550 |
gen_op_iwmmxt_unpackhb_M0_wRn(rd1); |
1551 |
break;
|
1552 |
case 1: |
1553 |
gen_op_iwmmxt_unpackhw_M0_wRn(rd1); |
1554 |
break;
|
1555 |
case 2: |
1556 |
gen_op_iwmmxt_unpackhl_M0_wRn(rd1); |
1557 |
break;
|
1558 |
case 3: |
1559 |
return 1; |
1560 |
} |
1561 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
1562 |
gen_op_iwmmxt_set_mup(); |
1563 |
gen_op_iwmmxt_set_cup(); |
1564 |
break;
|
1565 |
case 0x012: case 0x112: case 0x412: case 0x512: /* WSAD */ |
1566 |
wrd = (insn >> 12) & 0xf; |
1567 |
rd0 = (insn >> 16) & 0xf; |
1568 |
rd1 = (insn >> 0) & 0xf; |
1569 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
1570 |
if (insn & (1 << 22)) |
1571 |
gen_op_iwmmxt_sadw_M0_wRn(rd1); |
1572 |
else
|
1573 |
gen_op_iwmmxt_sadb_M0_wRn(rd1); |
1574 |
if (!(insn & (1 << 20))) |
1575 |
gen_op_iwmmxt_addl_M0_wRn(wrd); |
1576 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
1577 |
gen_op_iwmmxt_set_mup(); |
1578 |
break;
|
1579 |
case 0x010: case 0x110: case 0x210: case 0x310: /* WMUL */ |
1580 |
wrd = (insn >> 12) & 0xf; |
1581 |
rd0 = (insn >> 16) & 0xf; |
1582 |
rd1 = (insn >> 0) & 0xf; |
1583 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
1584 |
if (insn & (1 << 21)) { |
1585 |
if (insn & (1 << 20)) |
1586 |
gen_op_iwmmxt_mulshw_M0_wRn(rd1); |
1587 |
else
|
1588 |
gen_op_iwmmxt_mulslw_M0_wRn(rd1); |
1589 |
} else {
|
1590 |
if (insn & (1 << 20)) |
1591 |
gen_op_iwmmxt_muluhw_M0_wRn(rd1); |
1592 |
else
|
1593 |
gen_op_iwmmxt_mululw_M0_wRn(rd1); |
1594 |
} |
1595 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
1596 |
gen_op_iwmmxt_set_mup(); |
1597 |
break;
|
1598 |
case 0x410: case 0x510: case 0x610: case 0x710: /* WMAC */ |
1599 |
wrd = (insn >> 12) & 0xf; |
1600 |
rd0 = (insn >> 16) & 0xf; |
1601 |
rd1 = (insn >> 0) & 0xf; |
1602 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
1603 |
if (insn & (1 << 21)) |
1604 |
gen_op_iwmmxt_macsw_M0_wRn(rd1); |
1605 |
else
|
1606 |
gen_op_iwmmxt_macuw_M0_wRn(rd1); |
1607 |
if (!(insn & (1 << 20))) { |
1608 |
iwmmxt_load_reg(cpu_V1, wrd); |
1609 |
tcg_gen_add_i64(cpu_M0, cpu_M0, cpu_V1); |
1610 |
} |
1611 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
1612 |
gen_op_iwmmxt_set_mup(); |
1613 |
break;
|
1614 |
case 0x006: case 0x406: case 0x806: case 0xc06: /* WCMPEQ */ |
1615 |
wrd = (insn >> 12) & 0xf; |
1616 |
rd0 = (insn >> 16) & 0xf; |
1617 |
rd1 = (insn >> 0) & 0xf; |
1618 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
1619 |
switch ((insn >> 22) & 3) { |
1620 |
case 0: |
1621 |
gen_op_iwmmxt_cmpeqb_M0_wRn(rd1); |
1622 |
break;
|
1623 |
case 1: |
1624 |
gen_op_iwmmxt_cmpeqw_M0_wRn(rd1); |
1625 |
break;
|
1626 |
case 2: |
1627 |
gen_op_iwmmxt_cmpeql_M0_wRn(rd1); |
1628 |
break;
|
1629 |
case 3: |
1630 |
return 1; |
1631 |
} |
1632 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
1633 |
gen_op_iwmmxt_set_mup(); |
1634 |
gen_op_iwmmxt_set_cup(); |
1635 |
break;
|
1636 |
case 0x800: case 0x900: case 0xc00: case 0xd00: /* WAVG2 */ |
1637 |
wrd = (insn >> 12) & 0xf; |
1638 |
rd0 = (insn >> 16) & 0xf; |
1639 |
rd1 = (insn >> 0) & 0xf; |
1640 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
1641 |
if (insn & (1 << 22)) { |
1642 |
if (insn & (1 << 20)) |
1643 |
gen_op_iwmmxt_avgw1_M0_wRn(rd1); |
1644 |
else
|
1645 |
gen_op_iwmmxt_avgw0_M0_wRn(rd1); |
1646 |
} else {
|
1647 |
if (insn & (1 << 20)) |
1648 |
gen_op_iwmmxt_avgb1_M0_wRn(rd1); |
1649 |
else
|
1650 |
gen_op_iwmmxt_avgb0_M0_wRn(rd1); |
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 0x802: case 0x902: case 0xa02: case 0xb02: /* WALIGNR */ |
1657 |
wrd = (insn >> 12) & 0xf; |
1658 |
rd0 = (insn >> 16) & 0xf; |
1659 |
rd1 = (insn >> 0) & 0xf; |
1660 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
1661 |
tmp = iwmmxt_load_creg(ARM_IWMMXT_wCGR0 + ((insn >> 20) & 3)); |
1662 |
tcg_gen_andi_i32(tmp, tmp, 7);
|
1663 |
iwmmxt_load_reg(cpu_V1, rd1); |
1664 |
gen_helper_iwmmxt_align(cpu_M0, cpu_M0, cpu_V1, tmp); |
1665 |
dead_tmp(tmp); |
1666 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
1667 |
gen_op_iwmmxt_set_mup(); |
1668 |
break;
|
1669 |
case 0x601: case 0x605: case 0x609: case 0x60d: /* TINSR */ |
1670 |
if (((insn >> 6) & 3) == 3) |
1671 |
return 1; |
1672 |
rd = (insn >> 12) & 0xf; |
1673 |
wrd = (insn >> 16) & 0xf; |
1674 |
tmp = load_reg(s, rd); |
1675 |
gen_op_iwmmxt_movq_M0_wRn(wrd); |
1676 |
switch ((insn >> 6) & 3) { |
1677 |
case 0: |
1678 |
tmp2 = tcg_const_i32(0xff);
|
1679 |
tmp3 = tcg_const_i32((insn & 7) << 3); |
1680 |
break;
|
1681 |
case 1: |
1682 |
tmp2 = tcg_const_i32(0xffff);
|
1683 |
tmp3 = tcg_const_i32((insn & 3) << 4); |
1684 |
break;
|
1685 |
case 2: |
1686 |
tmp2 = tcg_const_i32(0xffffffff);
|
1687 |
tmp3 = tcg_const_i32((insn & 1) << 5); |
1688 |
break;
|
1689 |
default:
|
1690 |
TCGV_UNUSED(tmp2); |
1691 |
TCGV_UNUSED(tmp3); |
1692 |
} |
1693 |
gen_helper_iwmmxt_insr(cpu_M0, cpu_M0, tmp, tmp2, tmp3); |
1694 |
tcg_temp_free(tmp3); |
1695 |
tcg_temp_free(tmp2); |
1696 |
dead_tmp(tmp); |
1697 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
1698 |
gen_op_iwmmxt_set_mup(); |
1699 |
break;
|
1700 |
case 0x107: case 0x507: case 0x907: case 0xd07: /* TEXTRM */ |
1701 |
rd = (insn >> 12) & 0xf; |
1702 |
wrd = (insn >> 16) & 0xf; |
1703 |
if (rd == 15 || ((insn >> 22) & 3) == 3) |
1704 |
return 1; |
1705 |
gen_op_iwmmxt_movq_M0_wRn(wrd); |
1706 |
tmp = new_tmp(); |
1707 |
switch ((insn >> 22) & 3) { |
1708 |
case 0: |
1709 |
tcg_gen_shri_i64(cpu_M0, cpu_M0, (insn & 7) << 3); |
1710 |
tcg_gen_trunc_i64_i32(tmp, cpu_M0); |
1711 |
if (insn & 8) { |
1712 |
tcg_gen_ext8s_i32(tmp, tmp); |
1713 |
} else {
|
1714 |
tcg_gen_andi_i32(tmp, tmp, 0xff);
|
1715 |
} |
1716 |
break;
|
1717 |
case 1: |
1718 |
tcg_gen_shri_i64(cpu_M0, cpu_M0, (insn & 3) << 4); |
1719 |
tcg_gen_trunc_i64_i32(tmp, cpu_M0); |
1720 |
if (insn & 8) { |
1721 |
tcg_gen_ext16s_i32(tmp, tmp); |
1722 |
} else {
|
1723 |
tcg_gen_andi_i32(tmp, tmp, 0xffff);
|
1724 |
} |
1725 |
break;
|
1726 |
case 2: |
1727 |
tcg_gen_shri_i64(cpu_M0, cpu_M0, (insn & 1) << 5); |
1728 |
tcg_gen_trunc_i64_i32(tmp, cpu_M0); |
1729 |
break;
|
1730 |
} |
1731 |
store_reg(s, rd, tmp); |
1732 |
break;
|
1733 |
case 0x117: case 0x517: case 0x917: case 0xd17: /* TEXTRC */ |
1734 |
if ((insn & 0x000ff008) != 0x0003f000 || ((insn >> 22) & 3) == 3) |
1735 |
return 1; |
1736 |
tmp = iwmmxt_load_creg(ARM_IWMMXT_wCASF); |
1737 |
switch ((insn >> 22) & 3) { |
1738 |
case 0: |
1739 |
tcg_gen_shri_i32(tmp, tmp, ((insn & 7) << 2) + 0); |
1740 |
break;
|
1741 |
case 1: |
1742 |
tcg_gen_shri_i32(tmp, tmp, ((insn & 3) << 3) + 4); |
1743 |
break;
|
1744 |
case 2: |
1745 |
tcg_gen_shri_i32(tmp, tmp, ((insn & 1) << 4) + 12); |
1746 |
break;
|
1747 |
} |
1748 |
tcg_gen_shli_i32(tmp, tmp, 28);
|
1749 |
gen_set_nzcv(tmp); |
1750 |
dead_tmp(tmp); |
1751 |
break;
|
1752 |
case 0x401: case 0x405: case 0x409: case 0x40d: /* TBCST */ |
1753 |
if (((insn >> 6) & 3) == 3) |
1754 |
return 1; |
1755 |
rd = (insn >> 12) & 0xf; |
1756 |
wrd = (insn >> 16) & 0xf; |
1757 |
tmp = load_reg(s, rd); |
1758 |
switch ((insn >> 6) & 3) { |
1759 |
case 0: |
1760 |
gen_helper_iwmmxt_bcstb(cpu_M0, tmp); |
1761 |
break;
|
1762 |
case 1: |
1763 |
gen_helper_iwmmxt_bcstw(cpu_M0, tmp); |
1764 |
break;
|
1765 |
case 2: |
1766 |
gen_helper_iwmmxt_bcstl(cpu_M0, tmp); |
1767 |
break;
|
1768 |
} |
1769 |
dead_tmp(tmp); |
1770 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
1771 |
gen_op_iwmmxt_set_mup(); |
1772 |
break;
|
1773 |
case 0x113: case 0x513: case 0x913: case 0xd13: /* TANDC */ |
1774 |
if ((insn & 0x000ff00f) != 0x0003f000 || ((insn >> 22) & 3) == 3) |
1775 |
return 1; |
1776 |
tmp = iwmmxt_load_creg(ARM_IWMMXT_wCASF); |
1777 |
tmp2 = new_tmp(); |
1778 |
tcg_gen_mov_i32(tmp2, tmp); |
1779 |
switch ((insn >> 22) & 3) { |
1780 |
case 0: |
1781 |
for (i = 0; i < 7; i ++) { |
1782 |
tcg_gen_shli_i32(tmp2, tmp2, 4);
|
1783 |
tcg_gen_and_i32(tmp, tmp, tmp2); |
1784 |
} |
1785 |
break;
|
1786 |
case 1: |
1787 |
for (i = 0; i < 3; i ++) { |
1788 |
tcg_gen_shli_i32(tmp2, tmp2, 8);
|
1789 |
tcg_gen_and_i32(tmp, tmp, tmp2); |
1790 |
} |
1791 |
break;
|
1792 |
case 2: |
1793 |
tcg_gen_shli_i32(tmp2, tmp2, 16);
|
1794 |
tcg_gen_and_i32(tmp, tmp, tmp2); |
1795 |
break;
|
1796 |
} |
1797 |
gen_set_nzcv(tmp); |
1798 |
dead_tmp(tmp2); |
1799 |
dead_tmp(tmp); |
1800 |
break;
|
1801 |
case 0x01c: case 0x41c: case 0x81c: case 0xc1c: /* WACC */ |
1802 |
wrd = (insn >> 12) & 0xf; |
1803 |
rd0 = (insn >> 16) & 0xf; |
1804 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
1805 |
switch ((insn >> 22) & 3) { |
1806 |
case 0: |
1807 |
gen_helper_iwmmxt_addcb(cpu_M0, cpu_M0); |
1808 |
break;
|
1809 |
case 1: |
1810 |
gen_helper_iwmmxt_addcw(cpu_M0, cpu_M0); |
1811 |
break;
|
1812 |
case 2: |
1813 |
gen_helper_iwmmxt_addcl(cpu_M0, cpu_M0); |
1814 |
break;
|
1815 |
case 3: |
1816 |
return 1; |
1817 |
} |
1818 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
1819 |
gen_op_iwmmxt_set_mup(); |
1820 |
break;
|
1821 |
case 0x115: case 0x515: case 0x915: case 0xd15: /* TORC */ |
1822 |
if ((insn & 0x000ff00f) != 0x0003f000 || ((insn >> 22) & 3) == 3) |
1823 |
return 1; |
1824 |
tmp = iwmmxt_load_creg(ARM_IWMMXT_wCASF); |
1825 |
tmp2 = new_tmp(); |
1826 |
tcg_gen_mov_i32(tmp2, tmp); |
1827 |
switch ((insn >> 22) & 3) { |
1828 |
case 0: |
1829 |
for (i = 0; i < 7; i ++) { |
1830 |
tcg_gen_shli_i32(tmp2, tmp2, 4);
|
1831 |
tcg_gen_or_i32(tmp, tmp, tmp2); |
1832 |
} |
1833 |
break;
|
1834 |
case 1: |
1835 |
for (i = 0; i < 3; i ++) { |
1836 |
tcg_gen_shli_i32(tmp2, tmp2, 8);
|
1837 |
tcg_gen_or_i32(tmp, tmp, tmp2); |
1838 |
} |
1839 |
break;
|
1840 |
case 2: |
1841 |
tcg_gen_shli_i32(tmp2, tmp2, 16);
|
1842 |
tcg_gen_or_i32(tmp, tmp, tmp2); |
1843 |
break;
|
1844 |
} |
1845 |
gen_set_nzcv(tmp); |
1846 |
dead_tmp(tmp2); |
1847 |
dead_tmp(tmp); |
1848 |
break;
|
1849 |
case 0x103: case 0x503: case 0x903: case 0xd03: /* TMOVMSK */ |
1850 |
rd = (insn >> 12) & 0xf; |
1851 |
rd0 = (insn >> 16) & 0xf; |
1852 |
if ((insn & 0xf) != 0 || ((insn >> 22) & 3) == 3) |
1853 |
return 1; |
1854 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
1855 |
tmp = new_tmp(); |
1856 |
switch ((insn >> 22) & 3) { |
1857 |
case 0: |
1858 |
gen_helper_iwmmxt_msbb(tmp, cpu_M0); |
1859 |
break;
|
1860 |
case 1: |
1861 |
gen_helper_iwmmxt_msbw(tmp, cpu_M0); |
1862 |
break;
|
1863 |
case 2: |
1864 |
gen_helper_iwmmxt_msbl(tmp, cpu_M0); |
1865 |
break;
|
1866 |
} |
1867 |
store_reg(s, rd, tmp); |
1868 |
break;
|
1869 |
case 0x106: case 0x306: case 0x506: case 0x706: /* WCMPGT */ |
1870 |
case 0x906: case 0xb06: case 0xd06: case 0xf06: |
1871 |
wrd = (insn >> 12) & 0xf; |
1872 |
rd0 = (insn >> 16) & 0xf; |
1873 |
rd1 = (insn >> 0) & 0xf; |
1874 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
1875 |
switch ((insn >> 22) & 3) { |
1876 |
case 0: |
1877 |
if (insn & (1 << 21)) |
1878 |
gen_op_iwmmxt_cmpgtsb_M0_wRn(rd1); |
1879 |
else
|
1880 |
gen_op_iwmmxt_cmpgtub_M0_wRn(rd1); |
1881 |
break;
|
1882 |
case 1: |
1883 |
if (insn & (1 << 21)) |
1884 |
gen_op_iwmmxt_cmpgtsw_M0_wRn(rd1); |
1885 |
else
|
1886 |
gen_op_iwmmxt_cmpgtuw_M0_wRn(rd1); |
1887 |
break;
|
1888 |
case 2: |
1889 |
if (insn & (1 << 21)) |
1890 |
gen_op_iwmmxt_cmpgtsl_M0_wRn(rd1); |
1891 |
else
|
1892 |
gen_op_iwmmxt_cmpgtul_M0_wRn(rd1); |
1893 |
break;
|
1894 |
case 3: |
1895 |
return 1; |
1896 |
} |
1897 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
1898 |
gen_op_iwmmxt_set_mup(); |
1899 |
gen_op_iwmmxt_set_cup(); |
1900 |
break;
|
1901 |
case 0x00e: case 0x20e: case 0x40e: case 0x60e: /* WUNPCKEL */ |
1902 |
case 0x80e: case 0xa0e: case 0xc0e: case 0xe0e: |
1903 |
wrd = (insn >> 12) & 0xf; |
1904 |
rd0 = (insn >> 16) & 0xf; |
1905 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
1906 |
switch ((insn >> 22) & 3) { |
1907 |
case 0: |
1908 |
if (insn & (1 << 21)) |
1909 |
gen_op_iwmmxt_unpacklsb_M0(); |
1910 |
else
|
1911 |
gen_op_iwmmxt_unpacklub_M0(); |
1912 |
break;
|
1913 |
case 1: |
1914 |
if (insn & (1 << 21)) |
1915 |
gen_op_iwmmxt_unpacklsw_M0(); |
1916 |
else
|
1917 |
gen_op_iwmmxt_unpackluw_M0(); |
1918 |
break;
|
1919 |
case 2: |
1920 |
if (insn & (1 << 21)) |
1921 |
gen_op_iwmmxt_unpacklsl_M0(); |
1922 |
else
|
1923 |
gen_op_iwmmxt_unpacklul_M0(); |
1924 |
break;
|
1925 |
case 3: |
1926 |
return 1; |
1927 |
} |
1928 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
1929 |
gen_op_iwmmxt_set_mup(); |
1930 |
gen_op_iwmmxt_set_cup(); |
1931 |
break;
|
1932 |
case 0x00c: case 0x20c: case 0x40c: case 0x60c: /* WUNPCKEH */ |
1933 |
case 0x80c: case 0xa0c: case 0xc0c: case 0xe0c: |
1934 |
wrd = (insn >> 12) & 0xf; |
1935 |
rd0 = (insn >> 16) & 0xf; |
1936 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
1937 |
switch ((insn >> 22) & 3) { |
1938 |
case 0: |
1939 |
if (insn & (1 << 21)) |
1940 |
gen_op_iwmmxt_unpackhsb_M0(); |
1941 |
else
|
1942 |
gen_op_iwmmxt_unpackhub_M0(); |
1943 |
break;
|
1944 |
case 1: |
1945 |
if (insn & (1 << 21)) |
1946 |
gen_op_iwmmxt_unpackhsw_M0(); |
1947 |
else
|
1948 |
gen_op_iwmmxt_unpackhuw_M0(); |
1949 |
break;
|
1950 |
case 2: |
1951 |
if (insn & (1 << 21)) |
1952 |
gen_op_iwmmxt_unpackhsl_M0(); |
1953 |
else
|
1954 |
gen_op_iwmmxt_unpackhul_M0(); |
1955 |
break;
|
1956 |
case 3: |
1957 |
return 1; |
1958 |
} |
1959 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
1960 |
gen_op_iwmmxt_set_mup(); |
1961 |
gen_op_iwmmxt_set_cup(); |
1962 |
break;
|
1963 |
case 0x204: case 0x604: case 0xa04: case 0xe04: /* WSRL */ |
1964 |
case 0x214: case 0x614: case 0xa14: case 0xe14: |
1965 |
if (((insn >> 22) & 3) == 0) |
1966 |
return 1; |
1967 |
wrd = (insn >> 12) & 0xf; |
1968 |
rd0 = (insn >> 16) & 0xf; |
1969 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
1970 |
tmp = new_tmp(); |
1971 |
if (gen_iwmmxt_shift(insn, 0xff, tmp)) { |
1972 |
dead_tmp(tmp); |
1973 |
return 1; |
1974 |
} |
1975 |
switch ((insn >> 22) & 3) { |
1976 |
case 1: |
1977 |
gen_helper_iwmmxt_srlw(cpu_M0, cpu_env, cpu_M0, tmp); |
1978 |
break;
|
1979 |
case 2: |
1980 |
gen_helper_iwmmxt_srll(cpu_M0, cpu_env, cpu_M0, tmp); |
1981 |
break;
|
1982 |
case 3: |
1983 |
gen_helper_iwmmxt_srlq(cpu_M0, cpu_env, cpu_M0, tmp); |
1984 |
break;
|
1985 |
} |
1986 |
dead_tmp(tmp); |
1987 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
1988 |
gen_op_iwmmxt_set_mup(); |
1989 |
gen_op_iwmmxt_set_cup(); |
1990 |
break;
|
1991 |
case 0x004: case 0x404: case 0x804: case 0xc04: /* WSRA */ |
1992 |
case 0x014: case 0x414: case 0x814: case 0xc14: |
1993 |
if (((insn >> 22) & 3) == 0) |
1994 |
return 1; |
1995 |
wrd = (insn >> 12) & 0xf; |
1996 |
rd0 = (insn >> 16) & 0xf; |
1997 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
1998 |
tmp = new_tmp(); |
1999 |
if (gen_iwmmxt_shift(insn, 0xff, tmp)) { |
2000 |
dead_tmp(tmp); |
2001 |
return 1; |
2002 |
} |
2003 |
switch ((insn >> 22) & 3) { |
2004 |
case 1: |
2005 |
gen_helper_iwmmxt_sraw(cpu_M0, cpu_env, cpu_M0, tmp); |
2006 |
break;
|
2007 |
case 2: |
2008 |
gen_helper_iwmmxt_sral(cpu_M0, cpu_env, cpu_M0, tmp); |
2009 |
break;
|
2010 |
case 3: |
2011 |
gen_helper_iwmmxt_sraq(cpu_M0, cpu_env, cpu_M0, tmp); |
2012 |
break;
|
2013 |
} |
2014 |
dead_tmp(tmp); |
2015 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
2016 |
gen_op_iwmmxt_set_mup(); |
2017 |
gen_op_iwmmxt_set_cup(); |
2018 |
break;
|
2019 |
case 0x104: case 0x504: case 0x904: case 0xd04: /* WSLL */ |
2020 |
case 0x114: case 0x514: case 0x914: case 0xd14: |
2021 |
if (((insn >> 22) & 3) == 0) |
2022 |
return 1; |
2023 |
wrd = (insn >> 12) & 0xf; |
2024 |
rd0 = (insn >> 16) & 0xf; |
2025 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
2026 |
tmp = new_tmp(); |
2027 |
if (gen_iwmmxt_shift(insn, 0xff, tmp)) { |
2028 |
dead_tmp(tmp); |
2029 |
return 1; |
2030 |
} |
2031 |
switch ((insn >> 22) & 3) { |
2032 |
case 1: |
2033 |
gen_helper_iwmmxt_sllw(cpu_M0, cpu_env, cpu_M0, tmp); |
2034 |
break;
|
2035 |
case 2: |
2036 |
gen_helper_iwmmxt_slll(cpu_M0, cpu_env, cpu_M0, tmp); |
2037 |
break;
|
2038 |
case 3: |
2039 |
gen_helper_iwmmxt_sllq(cpu_M0, cpu_env, cpu_M0, tmp); |
2040 |
break;
|
2041 |
} |
2042 |
dead_tmp(tmp); |
2043 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
2044 |
gen_op_iwmmxt_set_mup(); |
2045 |
gen_op_iwmmxt_set_cup(); |
2046 |
break;
|
2047 |
case 0x304: case 0x704: case 0xb04: case 0xf04: /* WROR */ |
2048 |
case 0x314: case 0x714: case 0xb14: case 0xf14: |
2049 |
if (((insn >> 22) & 3) == 0) |
2050 |
return 1; |
2051 |
wrd = (insn >> 12) & 0xf; |
2052 |
rd0 = (insn >> 16) & 0xf; |
2053 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
2054 |
tmp = new_tmp(); |
2055 |
switch ((insn >> 22) & 3) { |
2056 |
case 1: |
2057 |
if (gen_iwmmxt_shift(insn, 0xf, tmp)) { |
2058 |
dead_tmp(tmp); |
2059 |
return 1; |
2060 |
} |
2061 |
gen_helper_iwmmxt_rorw(cpu_M0, cpu_env, cpu_M0, tmp); |
2062 |
break;
|
2063 |
case 2: |
2064 |
if (gen_iwmmxt_shift(insn, 0x1f, tmp)) { |
2065 |
dead_tmp(tmp); |
2066 |
return 1; |
2067 |
} |
2068 |
gen_helper_iwmmxt_rorl(cpu_M0, cpu_env, cpu_M0, tmp); |
2069 |
break;
|
2070 |
case 3: |
2071 |
if (gen_iwmmxt_shift(insn, 0x3f, tmp)) { |
2072 |
dead_tmp(tmp); |
2073 |
return 1; |
2074 |
} |
2075 |
gen_helper_iwmmxt_rorq(cpu_M0, cpu_env, cpu_M0, tmp); |
2076 |
break;
|
2077 |
} |
2078 |
dead_tmp(tmp); |
2079 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
2080 |
gen_op_iwmmxt_set_mup(); |
2081 |
gen_op_iwmmxt_set_cup(); |
2082 |
break;
|
2083 |
case 0x116: case 0x316: case 0x516: case 0x716: /* WMIN */ |
2084 |
case 0x916: case 0xb16: case 0xd16: case 0xf16: |
2085 |
wrd = (insn >> 12) & 0xf; |
2086 |
rd0 = (insn >> 16) & 0xf; |
2087 |
rd1 = (insn >> 0) & 0xf; |
2088 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
2089 |
switch ((insn >> 22) & 3) { |
2090 |
case 0: |
2091 |
if (insn & (1 << 21)) |
2092 |
gen_op_iwmmxt_minsb_M0_wRn(rd1); |
2093 |
else
|
2094 |
gen_op_iwmmxt_minub_M0_wRn(rd1); |
2095 |
break;
|
2096 |
case 1: |
2097 |
if (insn & (1 << 21)) |
2098 |
gen_op_iwmmxt_minsw_M0_wRn(rd1); |
2099 |
else
|
2100 |
gen_op_iwmmxt_minuw_M0_wRn(rd1); |
2101 |
break;
|
2102 |
case 2: |
2103 |
if (insn & (1 << 21)) |
2104 |
gen_op_iwmmxt_minsl_M0_wRn(rd1); |
2105 |
else
|
2106 |
gen_op_iwmmxt_minul_M0_wRn(rd1); |
2107 |
break;
|
2108 |
case 3: |
2109 |
return 1; |
2110 |
} |
2111 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
2112 |
gen_op_iwmmxt_set_mup(); |
2113 |
break;
|
2114 |
case 0x016: case 0x216: case 0x416: case 0x616: /* WMAX */ |
2115 |
case 0x816: case 0xa16: case 0xc16: case 0xe16: |
2116 |
wrd = (insn >> 12) & 0xf; |
2117 |
rd0 = (insn >> 16) & 0xf; |
2118 |
rd1 = (insn >> 0) & 0xf; |
2119 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
2120 |
switch ((insn >> 22) & 3) { |
2121 |
case 0: |
2122 |
if (insn & (1 << 21)) |
2123 |
gen_op_iwmmxt_maxsb_M0_wRn(rd1); |
2124 |
else
|
2125 |
gen_op_iwmmxt_maxub_M0_wRn(rd1); |
2126 |
break;
|
2127 |
case 1: |
2128 |
if (insn & (1 << 21)) |
2129 |
gen_op_iwmmxt_maxsw_M0_wRn(rd1); |
2130 |
else
|
2131 |
gen_op_iwmmxt_maxuw_M0_wRn(rd1); |
2132 |
break;
|
2133 |
case 2: |
2134 |
if (insn & (1 << 21)) |
2135 |
gen_op_iwmmxt_maxsl_M0_wRn(rd1); |
2136 |
else
|
2137 |
gen_op_iwmmxt_maxul_M0_wRn(rd1); |
2138 |
break;
|
2139 |
case 3: |
2140 |
return 1; |
2141 |
} |
2142 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
2143 |
gen_op_iwmmxt_set_mup(); |
2144 |
break;
|
2145 |
case 0x002: case 0x102: case 0x202: case 0x302: /* WALIGNI */ |
2146 |
case 0x402: case 0x502: case 0x602: case 0x702: |
2147 |
wrd = (insn >> 12) & 0xf; |
2148 |
rd0 = (insn >> 16) & 0xf; |
2149 |
rd1 = (insn >> 0) & 0xf; |
2150 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
2151 |
tmp = tcg_const_i32((insn >> 20) & 3); |
2152 |
iwmmxt_load_reg(cpu_V1, rd1); |
2153 |
gen_helper_iwmmxt_align(cpu_M0, cpu_M0, cpu_V1, tmp); |
2154 |
tcg_temp_free(tmp); |
2155 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
2156 |
gen_op_iwmmxt_set_mup(); |
2157 |
break;
|
2158 |
case 0x01a: case 0x11a: case 0x21a: case 0x31a: /* WSUB */ |
2159 |
case 0x41a: case 0x51a: case 0x61a: case 0x71a: |
2160 |
case 0x81a: case 0x91a: case 0xa1a: case 0xb1a: |
2161 |
case 0xc1a: case 0xd1a: case 0xe1a: case 0xf1a: |
2162 |
wrd = (insn >> 12) & 0xf; |
2163 |
rd0 = (insn >> 16) & 0xf; |
2164 |
rd1 = (insn >> 0) & 0xf; |
2165 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
2166 |
switch ((insn >> 20) & 0xf) { |
2167 |
case 0x0: |
2168 |
gen_op_iwmmxt_subnb_M0_wRn(rd1); |
2169 |
break;
|
2170 |
case 0x1: |
2171 |
gen_op_iwmmxt_subub_M0_wRn(rd1); |
2172 |
break;
|
2173 |
case 0x3: |
2174 |
gen_op_iwmmxt_subsb_M0_wRn(rd1); |
2175 |
break;
|
2176 |
case 0x4: |
2177 |
gen_op_iwmmxt_subnw_M0_wRn(rd1); |
2178 |
break;
|
2179 |
case 0x5: |
2180 |
gen_op_iwmmxt_subuw_M0_wRn(rd1); |
2181 |
break;
|
2182 |
case 0x7: |
2183 |
gen_op_iwmmxt_subsw_M0_wRn(rd1); |
2184 |
break;
|
2185 |
case 0x8: |
2186 |
gen_op_iwmmxt_subnl_M0_wRn(rd1); |
2187 |
break;
|
2188 |
case 0x9: |
2189 |
gen_op_iwmmxt_subul_M0_wRn(rd1); |
2190 |
break;
|
2191 |
case 0xb: |
2192 |
gen_op_iwmmxt_subsl_M0_wRn(rd1); |
2193 |
break;
|
2194 |
default:
|
2195 |
return 1; |
2196 |
} |
2197 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
2198 |
gen_op_iwmmxt_set_mup(); |
2199 |
gen_op_iwmmxt_set_cup(); |
2200 |
break;
|
2201 |
case 0x01e: case 0x11e: case 0x21e: case 0x31e: /* WSHUFH */ |
2202 |
case 0x41e: case 0x51e: case 0x61e: case 0x71e: |
2203 |
case 0x81e: case 0x91e: case 0xa1e: case 0xb1e: |
2204 |
case 0xc1e: case 0xd1e: case 0xe1e: case 0xf1e: |
2205 |
wrd = (insn >> 12) & 0xf; |
2206 |
rd0 = (insn >> 16) & 0xf; |
2207 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
2208 |
tmp = tcg_const_i32(((insn >> 16) & 0xf0) | (insn & 0x0f)); |
2209 |
gen_helper_iwmmxt_shufh(cpu_M0, cpu_env, cpu_M0, tmp); |
2210 |
tcg_temp_free(tmp); |
2211 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
2212 |
gen_op_iwmmxt_set_mup(); |
2213 |
gen_op_iwmmxt_set_cup(); |
2214 |
break;
|
2215 |
case 0x018: case 0x118: case 0x218: case 0x318: /* WADD */ |
2216 |
case 0x418: case 0x518: case 0x618: case 0x718: |
2217 |
case 0x818: case 0x918: case 0xa18: case 0xb18: |
2218 |
case 0xc18: case 0xd18: case 0xe18: case 0xf18: |
2219 |
wrd = (insn >> 12) & 0xf; |
2220 |
rd0 = (insn >> 16) & 0xf; |
2221 |
rd1 = (insn >> 0) & 0xf; |
2222 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
2223 |
switch ((insn >> 20) & 0xf) { |
2224 |
case 0x0: |
2225 |
gen_op_iwmmxt_addnb_M0_wRn(rd1); |
2226 |
break;
|
2227 |
case 0x1: |
2228 |
gen_op_iwmmxt_addub_M0_wRn(rd1); |
2229 |
break;
|
2230 |
case 0x3: |
2231 |
gen_op_iwmmxt_addsb_M0_wRn(rd1); |
2232 |
break;
|
2233 |
case 0x4: |
2234 |
gen_op_iwmmxt_addnw_M0_wRn(rd1); |
2235 |
break;
|
2236 |
case 0x5: |
2237 |
gen_op_iwmmxt_adduw_M0_wRn(rd1); |
2238 |
break;
|
2239 |
case 0x7: |
2240 |
gen_op_iwmmxt_addsw_M0_wRn(rd1); |
2241 |
break;
|
2242 |
case 0x8: |
2243 |
gen_op_iwmmxt_addnl_M0_wRn(rd1); |
2244 |
break;
|
2245 |
case 0x9: |
2246 |
gen_op_iwmmxt_addul_M0_wRn(rd1); |
2247 |
break;
|
2248 |
case 0xb: |
2249 |
gen_op_iwmmxt_addsl_M0_wRn(rd1); |
2250 |
break;
|
2251 |
default:
|
2252 |
return 1; |
2253 |
} |
2254 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
2255 |
gen_op_iwmmxt_set_mup(); |
2256 |
gen_op_iwmmxt_set_cup(); |
2257 |
break;
|
2258 |
case 0x008: case 0x108: case 0x208: case 0x308: /* WPACK */ |
2259 |
case 0x408: case 0x508: case 0x608: case 0x708: |
2260 |
case 0x808: case 0x908: case 0xa08: case 0xb08: |
2261 |
case 0xc08: case 0xd08: case 0xe08: case 0xf08: |
2262 |
if (!(insn & (1 << 20)) || ((insn >> 22) & 3) == 0) |
2263 |
return 1; |
2264 |
wrd = (insn >> 12) & 0xf; |
2265 |
rd0 = (insn >> 16) & 0xf; |
2266 |
rd1 = (insn >> 0) & 0xf; |
2267 |
gen_op_iwmmxt_movq_M0_wRn(rd0); |
2268 |
switch ((insn >> 22) & 3) { |
2269 |
case 1: |
2270 |
if (insn & (1 << 21)) |
2271 |
gen_op_iwmmxt_packsw_M0_wRn(rd1); |
2272 |
else
|
2273 |
gen_op_iwmmxt_packuw_M0_wRn(rd1); |
2274 |
break;
|
2275 |
case 2: |
2276 |
if (insn & (1 << 21)) |
2277 |
gen_op_iwmmxt_packsl_M0_wRn(rd1); |
2278 |
else
|
2279 |
gen_op_iwmmxt_packul_M0_wRn(rd1); |
2280 |
break;
|
2281 |
case 3: |
2282 |
if (insn & (1 << 21)) |
2283 |
gen_op_iwmmxt_packsq_M0_wRn(rd1); |
2284 |
else
|
2285 |
gen_op_iwmmxt_packuq_M0_wRn(rd1); |
2286 |
break;
|
2287 |
} |
2288 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
2289 |
gen_op_iwmmxt_set_mup(); |
2290 |
gen_op_iwmmxt_set_cup(); |
2291 |
break;
|
2292 |
case 0x201: case 0x203: case 0x205: case 0x207: |
2293 |
case 0x209: case 0x20b: case 0x20d: case 0x20f: |
2294 |
case 0x211: case 0x213: case 0x215: case 0x217: |
2295 |
case 0x219: case 0x21b: case 0x21d: case 0x21f: |
2296 |
wrd = (insn >> 5) & 0xf; |
2297 |
rd0 = (insn >> 12) & 0xf; |
2298 |
rd1 = (insn >> 0) & 0xf; |
2299 |
if (rd0 == 0xf || rd1 == 0xf) |
2300 |
return 1; |
2301 |
gen_op_iwmmxt_movq_M0_wRn(wrd); |
2302 |
tmp = load_reg(s, rd0); |
2303 |
tmp2 = load_reg(s, rd1); |
2304 |
switch ((insn >> 16) & 0xf) { |
2305 |
case 0x0: /* TMIA */ |
2306 |
gen_helper_iwmmxt_muladdsl(cpu_M0, cpu_M0, tmp, tmp2); |
2307 |
break;
|
2308 |
case 0x8: /* TMIAPH */ |
2309 |
gen_helper_iwmmxt_muladdsw(cpu_M0, cpu_M0, tmp, tmp2); |
2310 |
break;
|
2311 |
case 0xc: case 0xd: case 0xe: case 0xf: /* TMIAxy */ |
2312 |
if (insn & (1 << 16)) |
2313 |
tcg_gen_shri_i32(tmp, tmp, 16);
|
2314 |
if (insn & (1 << 17)) |
2315 |
tcg_gen_shri_i32(tmp2, tmp2, 16);
|
2316 |
gen_helper_iwmmxt_muladdswl(cpu_M0, cpu_M0, tmp, tmp2); |
2317 |
break;
|
2318 |
default:
|
2319 |
dead_tmp(tmp2); |
2320 |
dead_tmp(tmp); |
2321 |
return 1; |
2322 |
} |
2323 |
dead_tmp(tmp2); |
2324 |
dead_tmp(tmp); |
2325 |
gen_op_iwmmxt_movq_wRn_M0(wrd); |
2326 |
gen_op_iwmmxt_set_mup(); |
2327 |
break;
|
2328 |
default:
|
2329 |
return 1; |
2330 |
} |
2331 |
|
2332 |
return 0; |
2333 |
} |
2334 |
|
2335 |
/* Disassemble an XScale DSP instruction. Returns nonzero if an error occured
|
2336 |
(ie. an undefined instruction). */
|
2337 |
static int disas_dsp_insn(CPUState *env, DisasContext *s, uint32_t insn) |
2338 |
{ |
2339 |
int acc, rd0, rd1, rdhi, rdlo;
|
2340 |
TCGv tmp, tmp2; |
2341 |
|
2342 |
if ((insn & 0x0ff00f10) == 0x0e200010) { |
2343 |
/* Multiply with Internal Accumulate Format */
|
2344 |
rd0 = (insn >> 12) & 0xf; |
2345 |
rd1 = insn & 0xf;
|
2346 |
acc = (insn >> 5) & 7; |
2347 |
|
2348 |
if (acc != 0) |
2349 |
return 1; |
2350 |
|
2351 |
tmp = load_reg(s, rd0); |
2352 |
tmp2 = load_reg(s, rd1); |
2353 |
switch ((insn >> 16) & 0xf) { |
2354 |
case 0x0: /* MIA */ |
2355 |
gen_helper_iwmmxt_muladdsl(cpu_M0, cpu_M0, tmp, tmp2); |
2356 |
break;
|
2357 |
case 0x8: /* MIAPH */ |
2358 |
gen_helper_iwmmxt_muladdsw(cpu_M0, cpu_M0, tmp, tmp2); |
2359 |
break;
|
2360 |
case 0xc: /* MIABB */ |
2361 |
case 0xd: /* MIABT */ |
2362 |
case 0xe: /* MIATB */ |
2363 |
case 0xf: /* MIATT */ |
2364 |
if (insn & (1 << 16)) |
2365 |
tcg_gen_shri_i32(tmp, tmp, 16);
|
2366 |
if (insn & (1 << 17)) |
2367 |
tcg_gen_shri_i32(tmp2, tmp2, 16);
|
2368 |
gen_helper_iwmmxt_muladdswl(cpu_M0, cpu_M0, tmp, tmp2); |
2369 |
break;
|
2370 |
default:
|
2371 |
return 1; |
2372 |
} |
2373 |
dead_tmp(tmp2); |
2374 |
dead_tmp(tmp); |
2375 |
|
2376 |
gen_op_iwmmxt_movq_wRn_M0(acc); |
2377 |
return 0; |
2378 |
} |
2379 |
|
2380 |
if ((insn & 0x0fe00ff8) == 0x0c400000) { |
2381 |
/* Internal Accumulator Access Format */
|
2382 |
rdhi = (insn >> 16) & 0xf; |
2383 |
rdlo = (insn >> 12) & 0xf; |
2384 |
acc = insn & 7;
|
2385 |
|
2386 |
if (acc != 0) |
2387 |
return 1; |
2388 |
|
2389 |
if (insn & ARM_CP_RW_BIT) { /* MRA */ |
2390 |
iwmmxt_load_reg(cpu_V0, acc); |
2391 |
tcg_gen_trunc_i64_i32(cpu_R[rdlo], cpu_V0); |
2392 |
tcg_gen_shri_i64(cpu_V0, cpu_V0, 32);
|
2393 |
tcg_gen_trunc_i64_i32(cpu_R[rdhi], cpu_V0); |
2394 |
tcg_gen_andi_i32(cpu_R[rdhi], cpu_R[rdhi], (1 << (40 - 32)) - 1); |
2395 |
} else { /* MAR */ |
2396 |
tcg_gen_concat_i32_i64(cpu_V0, cpu_R[rdlo], cpu_R[rdhi]); |
2397 |
iwmmxt_store_reg(cpu_V0, acc); |
2398 |
} |
2399 |
return 0; |
2400 |
} |
2401 |
|
2402 |
return 1; |
2403 |
} |
2404 |
|
2405 |
/* Disassemble system coprocessor instruction. Return nonzero if
|
2406 |
instruction is not defined. */
|
2407 |
static int disas_cp_insn(CPUState *env, DisasContext *s, uint32_t insn) |
2408 |
{ |
2409 |
TCGv tmp, tmp2; |
2410 |
uint32_t rd = (insn >> 12) & 0xf; |
2411 |
uint32_t cp = (insn >> 8) & 0xf; |
2412 |
if (IS_USER(s)) {
|
2413 |
return 1; |
2414 |
} |
2415 |
|
2416 |
if (insn & ARM_CP_RW_BIT) {
|
2417 |
if (!env->cp[cp].cp_read)
|
2418 |
return 1; |
2419 |
gen_set_pc_im(s->pc); |
2420 |
tmp = new_tmp(); |
2421 |
tmp2 = tcg_const_i32(insn); |
2422 |
gen_helper_get_cp(tmp, cpu_env, tmp2); |
2423 |
tcg_temp_free(tmp2); |
2424 |
store_reg(s, rd, tmp); |
2425 |
} else {
|
2426 |
if (!env->cp[cp].cp_write)
|
2427 |
return 1; |
2428 |
gen_set_pc_im(s->pc); |
2429 |
tmp = load_reg(s, rd); |
2430 |
tmp2 = tcg_const_i32(insn); |
2431 |
gen_helper_set_cp(cpu_env, tmp2, tmp); |
2432 |
tcg_temp_free(tmp2); |
2433 |
dead_tmp(tmp); |
2434 |
} |
2435 |
return 0; |
2436 |
} |
2437 |
|
2438 |
static int cp15_user_ok(uint32_t insn) |
2439 |
{ |
2440 |
int cpn = (insn >> 16) & 0xf; |
2441 |
int cpm = insn & 0xf; |
2442 |
int op = ((insn >> 5) & 7) | ((insn >> 18) & 0x38); |
2443 |
|
2444 |
if (cpn == 13 && cpm == 0) { |
2445 |
/* TLS register. */
|
2446 |
if (op == 2 || (op == 3 && (insn & ARM_CP_RW_BIT))) |
2447 |
return 1; |
2448 |
} |
2449 |
if (cpn == 7) { |
2450 |
/* ISB, DSB, DMB. */
|
2451 |
if ((cpm == 5 && op == 4) |
2452 |
|| (cpm == 10 && (op == 4 || op == 5))) |
2453 |
return 1; |
2454 |
} |
2455 |
return 0; |
2456 |
} |
2457 |
|
2458 |
static int cp15_tls_load_store(CPUState *env, DisasContext *s, uint32_t insn, uint32_t rd) |
2459 |
{ |
2460 |
TCGv tmp; |
2461 |
int cpn = (insn >> 16) & 0xf; |
2462 |
int cpm = insn & 0xf; |
2463 |
int op = ((insn >> 5) & 7) | ((insn >> 18) & 0x38); |
2464 |
|
2465 |
if (!arm_feature(env, ARM_FEATURE_V6K))
|
2466 |
return 0; |
2467 |
|
2468 |
if (!(cpn == 13 && cpm == 0)) |
2469 |
return 0; |
2470 |
|
2471 |
if (insn & ARM_CP_RW_BIT) {
|
2472 |
switch (op) {
|
2473 |
case 2: |
2474 |
tmp = load_cpu_field(cp15.c13_tls1); |
2475 |
break;
|
2476 |
case 3: |
2477 |
tmp = load_cpu_field(cp15.c13_tls2); |
2478 |
break;
|
2479 |
case 4: |
2480 |
tmp = load_cpu_field(cp15.c13_tls3); |
2481 |
break;
|
2482 |
default:
|
2483 |
return 0; |
2484 |
} |
2485 |
store_reg(s, rd, tmp); |
2486 |
|
2487 |
} else {
|
2488 |
tmp = load_reg(s, rd); |
2489 |
switch (op) {
|
2490 |
case 2: |
2491 |
store_cpu_field(tmp, cp15.c13_tls1); |
2492 |
break;
|
2493 |
case 3: |
2494 |
store_cpu_field(tmp, cp15.c13_tls2); |
2495 |
break;
|
2496 |
case 4: |
2497 |
store_cpu_field(tmp, cp15.c13_tls3); |
2498 |
break;
|
2499 |
default:
|
2500 |
dead_tmp(tmp); |
2501 |
return 0; |
2502 |
} |
2503 |
} |
2504 |
return 1; |
2505 |
} |
2506 |
|
2507 |
/* Disassemble system coprocessor (cp15) instruction. Return nonzero if
|
2508 |
instruction is not defined. */
|
2509 |
static int disas_cp15_insn(CPUState *env, DisasContext *s, uint32_t insn) |
2510 |
{ |
2511 |
uint32_t rd; |
2512 |
TCGv tmp, tmp2; |
2513 |
|
2514 |
/* M profile cores use memory mapped registers instead of cp15. */
|
2515 |
if (arm_feature(env, ARM_FEATURE_M))
|
2516 |
return 1; |
2517 |
|
2518 |
if ((insn & (1 << 25)) == 0) { |
2519 |
if (insn & (1 << 20)) { |
2520 |
/* mrrc */
|
2521 |
return 1; |
2522 |
} |
2523 |
/* mcrr. Used for block cache operations, so implement as no-op. */
|
2524 |
return 0; |
2525 |
} |
2526 |
if ((insn & (1 << 4)) == 0) { |
2527 |
/* cdp */
|
2528 |
return 1; |
2529 |
} |
2530 |
if (IS_USER(s) && !cp15_user_ok(insn)) {
|
2531 |
return 1; |
2532 |
} |
2533 |
if ((insn & 0x0fff0fff) == 0x0e070f90 |
2534 |
|| (insn & 0x0fff0fff) == 0x0e070f58) { |
2535 |
/* Wait for interrupt. */
|
2536 |
gen_set_pc_im(s->pc); |
2537 |
s->is_jmp = DISAS_WFI; |
2538 |
return 0; |
2539 |
} |
2540 |
rd = (insn >> 12) & 0xf; |
2541 |
|
2542 |
if (cp15_tls_load_store(env, s, insn, rd))
|
2543 |
return 0; |
2544 |
|
2545 |
tmp2 = tcg_const_i32(insn); |
2546 |
if (insn & ARM_CP_RW_BIT) {
|
2547 |
tmp = new_tmp(); |
2548 |
gen_helper_get_cp15(tmp, cpu_env, tmp2); |
2549 |
/* If the destination register is r15 then sets condition codes. */
|
2550 |
if (rd != 15) |
2551 |
store_reg(s, rd, tmp); |
2552 |
else
|
2553 |
dead_tmp(tmp); |
2554 |
} else {
|
2555 |
tmp = load_reg(s, rd); |
2556 |
gen_helper_set_cp15(cpu_env, tmp2, tmp); |
2557 |
dead_tmp(tmp); |
2558 |
/* Normally we would always end the TB here, but Linux
|
2559 |
* arch/arm/mach-pxa/sleep.S expects two instructions following
|
2560 |
* an MMU enable to execute from cache. Imitate this behaviour. */
|
2561 |
if (!arm_feature(env, ARM_FEATURE_XSCALE) ||
|
2562 |
(insn & 0x0fff0fff) != 0x0e010f10) |
2563 |
gen_lookup_tb(s); |
2564 |
} |
2565 |
tcg_temp_free_i32(tmp2); |
2566 |
return 0; |
2567 |
} |
2568 |
|
2569 |
#define VFP_REG_SHR(x, n) (((n) > 0) ? (x) >> (n) : (x) << -(n)) |
2570 |
#define VFP_SREG(insn, bigbit, smallbit) \
|
2571 |
((VFP_REG_SHR(insn, bigbit - 1) & 0x1e) | (((insn) >> (smallbit)) & 1)) |
2572 |
#define VFP_DREG(reg, insn, bigbit, smallbit) do { \ |
2573 |
if (arm_feature(env, ARM_FEATURE_VFP3)) { \
|
2574 |
reg = (((insn) >> (bigbit)) & 0x0f) \
|
2575 |
| (((insn) >> ((smallbit) - 4)) & 0x10); \ |
2576 |
} else { \
|
2577 |
if (insn & (1 << (smallbit))) \ |
2578 |
return 1; \ |
2579 |
reg = ((insn) >> (bigbit)) & 0x0f; \
|
2580 |
}} while (0) |
2581 |
|
2582 |
#define VFP_SREG_D(insn) VFP_SREG(insn, 12, 22) |
2583 |
#define VFP_DREG_D(reg, insn) VFP_DREG(reg, insn, 12, 22) |
2584 |
#define VFP_SREG_N(insn) VFP_SREG(insn, 16, 7) |
2585 |
#define VFP_DREG_N(reg, insn) VFP_DREG(reg, insn, 16, 7) |
2586 |
#define VFP_SREG_M(insn) VFP_SREG(insn, 0, 5) |
2587 |
#define VFP_DREG_M(reg, insn) VFP_DREG(reg, insn, 0, 5) |
2588 |
|
2589 |
/* Move between integer and VFP cores. */
|
2590 |
static TCGv gen_vfp_mrs(void) |
2591 |
{ |
2592 |
TCGv tmp = new_tmp(); |
2593 |
tcg_gen_mov_i32(tmp, cpu_F0s); |
2594 |
return tmp;
|
2595 |
} |
2596 |
|
2597 |
static void gen_vfp_msr(TCGv tmp) |
2598 |
{ |
2599 |
tcg_gen_mov_i32(cpu_F0s, tmp); |
2600 |
dead_tmp(tmp); |
2601 |
} |
2602 |
|
2603 |
static inline int |
2604 |
vfp_enabled(CPUState * env) |
2605 |
{ |
2606 |
return ((env->vfp.xregs[ARM_VFP_FPEXC] & (1 << 30)) != 0); |
2607 |
} |
2608 |
|
2609 |
static void gen_neon_dup_u8(TCGv var, int shift) |
2610 |
{ |
2611 |
TCGv tmp = new_tmp(); |
2612 |
if (shift)
|
2613 |
tcg_gen_shri_i32(var, var, shift); |
2614 |
tcg_gen_ext8u_i32(var, var); |
2615 |
tcg_gen_shli_i32(tmp, var, 8);
|
2616 |
tcg_gen_or_i32(var, var, tmp); |
2617 |
tcg_gen_shli_i32(tmp, var, 16);
|
2618 |
tcg_gen_or_i32(var, var, tmp); |
2619 |
dead_tmp(tmp); |
2620 |
} |
2621 |
|
2622 |
static void gen_neon_dup_low16(TCGv var) |
2623 |
{ |
2624 |
TCGv tmp = new_tmp(); |
2625 |
tcg_gen_ext16u_i32(var, var); |
2626 |
tcg_gen_shli_i32(tmp, var, 16);
|
2627 |
tcg_gen_or_i32(var, var, tmp); |
2628 |
dead_tmp(tmp); |
2629 |
} |
2630 |
|
2631 |
static void gen_neon_dup_high16(TCGv var) |
2632 |
{ |
2633 |
TCGv tmp = new_tmp(); |
2634 |
tcg_gen_andi_i32(var, var, 0xffff0000);
|
2635 |
tcg_gen_shri_i32(tmp, var, 16);
|
2636 |
tcg_gen_or_i32(var, var, tmp); |
2637 |
dead_tmp(tmp); |
2638 |
} |
2639 |
|
2640 |
/* Disassemble a VFP instruction. Returns nonzero if an error occured
|
2641 |
(ie. an undefined instruction). */
|
2642 |
static int disas_vfp_insn(CPUState * env, DisasContext *s, uint32_t insn) |
2643 |
{ |
2644 |
uint32_t rd, rn, rm, op, i, n, offset, delta_d, delta_m, bank_mask; |
2645 |
int dp, veclen;
|
2646 |
TCGv addr; |
2647 |
TCGv tmp; |
2648 |
TCGv tmp2; |
2649 |
|
2650 |
if (!arm_feature(env, ARM_FEATURE_VFP))
|
2651 |
return 1; |
2652 |
|
2653 |
if (!vfp_enabled(env)) {
|
2654 |
/* VFP disabled. Only allow fmxr/fmrx to/from some control regs. */
|
2655 |
if ((insn & 0x0fe00fff) != 0x0ee00a10) |
2656 |
return 1; |
2657 |
rn = (insn >> 16) & 0xf; |
2658 |
if (rn != ARM_VFP_FPSID && rn != ARM_VFP_FPEXC
|
2659 |
&& rn != ARM_VFP_MVFR1 && rn != ARM_VFP_MVFR0) |
2660 |
return 1; |
2661 |
} |
2662 |
dp = ((insn & 0xf00) == 0xb00); |
2663 |
switch ((insn >> 24) & 0xf) { |
2664 |
case 0xe: |
2665 |
if (insn & (1 << 4)) { |
2666 |
/* single register transfer */
|
2667 |
rd = (insn >> 12) & 0xf; |
2668 |
if (dp) {
|
2669 |
int size;
|
2670 |
int pass;
|
2671 |
|
2672 |
VFP_DREG_N(rn, insn); |
2673 |
if (insn & 0xf) |
2674 |
return 1; |
2675 |
if (insn & 0x00c00060 |
2676 |
&& !arm_feature(env, ARM_FEATURE_NEON)) |
2677 |
return 1; |
2678 |
|
2679 |
pass = (insn >> 21) & 1; |
2680 |
if (insn & (1 << 22)) { |
2681 |
size = 0;
|
2682 |
offset = ((insn >> 5) & 3) * 8; |
2683 |
} else if (insn & (1 << 5)) { |
2684 |
size = 1;
|
2685 |
offset = (insn & (1 << 6)) ? 16 : 0; |
2686 |
} else {
|
2687 |
size = 2;
|
2688 |
offset = 0;
|
2689 |
} |
2690 |
if (insn & ARM_CP_RW_BIT) {
|
2691 |
/* vfp->arm */
|
2692 |
tmp = neon_load_reg(rn, pass); |
2693 |
switch (size) {
|
2694 |
case 0: |
2695 |
if (offset)
|
2696 |
tcg_gen_shri_i32(tmp, tmp, offset); |
2697 |
if (insn & (1 << 23)) |
2698 |
gen_uxtb(tmp); |
2699 |
else
|
2700 |
gen_sxtb(tmp); |
2701 |
break;
|
2702 |
case 1: |
2703 |
if (insn & (1 << 23)) { |
2704 |
if (offset) {
|
2705 |
tcg_gen_shri_i32(tmp, tmp, 16);
|
2706 |
} else {
|
2707 |
gen_uxth(tmp); |
2708 |
} |
2709 |
} else {
|
2710 |
if (offset) {
|
2711 |
tcg_gen_sari_i32(tmp, tmp, 16);
|
2712 |
} else {
|
2713 |
gen_sxth(tmp); |
2714 |
} |
2715 |
} |
2716 |
break;
|
2717 |
case 2: |
2718 |
break;
|
2719 |
} |
2720 |
store_reg(s, rd, tmp); |
2721 |
} else {
|
2722 |
/* arm->vfp */
|
2723 |
tmp = load_reg(s, rd); |
2724 |
if (insn & (1 << 23)) { |
2725 |
/* VDUP */
|
2726 |
if (size == 0) { |
2727 |
gen_neon_dup_u8(tmp, 0);
|
2728 |
} else if (size == 1) { |
2729 |
gen_neon_dup_low16(tmp); |
2730 |
} |
2731 |
for (n = 0; n <= pass * 2; n++) { |
2732 |
tmp2 = new_tmp(); |
2733 |
tcg_gen_mov_i32(tmp2, tmp); |
2734 |
neon_store_reg(rn, n, tmp2); |
2735 |
} |
2736 |
neon_store_reg(rn, n, tmp); |
2737 |
} else {
|
2738 |
/* VMOV */
|
2739 |
switch (size) {
|
2740 |
case 0: |
2741 |
tmp2 = neon_load_reg(rn, pass); |
2742 |
gen_bfi(tmp, tmp2, tmp, offset, 0xff);
|
2743 |
dead_tmp(tmp2); |
2744 |
break;
|
2745 |
case 1: |
2746 |
tmp2 = neon_load_reg(rn, pass); |
2747 |
gen_bfi(tmp, tmp2, tmp, offset, 0xffff);
|
2748 |
dead_tmp(tmp2); |
2749 |
break;
|
2750 |
case 2: |
2751 |
break;
|
2752 |
} |
2753 |
neon_store_reg(rn, pass, tmp); |
2754 |
} |
2755 |
} |
2756 |
} else { /* !dp */ |
2757 |
if ((insn & 0x6f) != 0x00) |
2758 |
return 1; |
2759 |
rn = VFP_SREG_N(insn); |
2760 |
if (insn & ARM_CP_RW_BIT) {
|
2761 |
/* vfp->arm */
|
2762 |
if (insn & (1 << 21)) { |
2763 |
/* system register */
|
2764 |
rn >>= 1;
|
2765 |
|
2766 |
switch (rn) {
|
2767 |
case ARM_VFP_FPSID:
|
2768 |
/* VFP2 allows access to FSID from userspace.
|
2769 |
VFP3 restricts all id registers to privileged
|
2770 |
accesses. */
|
2771 |
if (IS_USER(s)
|
2772 |
&& arm_feature(env, ARM_FEATURE_VFP3)) |
2773 |
return 1; |
2774 |
tmp = load_cpu_field(vfp.xregs[rn]); |
2775 |
break;
|
2776 |
case ARM_VFP_FPEXC:
|
2777 |
if (IS_USER(s))
|
2778 |
return 1; |
2779 |
tmp = load_cpu_field(vfp.xregs[rn]); |
2780 |
break;
|
2781 |
case ARM_VFP_FPINST:
|
2782 |
case ARM_VFP_FPINST2:
|
2783 |
/* Not present in VFP3. */
|
2784 |
if (IS_USER(s)
|
2785 |
|| arm_feature(env, ARM_FEATURE_VFP3)) |
2786 |
return 1; |
2787 |
tmp = load_cpu_field(vfp.xregs[rn]); |
2788 |
break;
|
2789 |
case ARM_VFP_FPSCR:
|
2790 |
if (rd == 15) { |
2791 |
tmp = load_cpu_field(vfp.xregs[ARM_VFP_FPSCR]); |
2792 |
tcg_gen_andi_i32(tmp, tmp, 0xf0000000);
|
2793 |
} else {
|
2794 |
tmp = new_tmp(); |
2795 |
gen_helper_vfp_get_fpscr(tmp, cpu_env); |
2796 |
} |
2797 |
break;
|
2798 |
case ARM_VFP_MVFR0:
|
2799 |
case ARM_VFP_MVFR1:
|
2800 |
if (IS_USER(s)
|
2801 |
|| !arm_feature(env, ARM_FEATURE_VFP3)) |
2802 |
return 1; |
2803 |
tmp = load_cpu_field(vfp.xregs[rn]); |
2804 |
break;
|
2805 |
default:
|
2806 |
return 1; |
2807 |
} |
2808 |
} else {
|
2809 |
gen_mov_F0_vreg(0, rn);
|
2810 |
tmp = gen_vfp_mrs(); |
2811 |
} |
2812 |
if (rd == 15) { |
2813 |
/* Set the 4 flag bits in the CPSR. */
|
2814 |
gen_set_nzcv(tmp); |
2815 |
dead_tmp(tmp); |
2816 |
} else {
|
2817 |
store_reg(s, rd, tmp); |
2818 |
} |
2819 |
} else {
|
2820 |
/* arm->vfp */
|
2821 |
tmp = load_reg(s, rd); |
2822 |
if (insn & (1 << 21)) { |
2823 |
rn >>= 1;
|
2824 |
/* system register */
|
2825 |
switch (rn) {
|
2826 |
case ARM_VFP_FPSID:
|
2827 |
case ARM_VFP_MVFR0:
|
2828 |
case ARM_VFP_MVFR1:
|
2829 |
/* Writes are ignored. */
|
2830 |
break;
|
2831 |
case ARM_VFP_FPSCR:
|
2832 |
gen_helper_vfp_set_fpscr(cpu_env, tmp); |
2833 |
dead_tmp(tmp); |
2834 |
gen_lookup_tb(s); |
2835 |
break;
|
2836 |
case ARM_VFP_FPEXC:
|
2837 |
if (IS_USER(s))
|
2838 |
return 1; |
2839 |
/* TODO: VFP subarchitecture support.
|
2840 |
* For now, keep the EN bit only */
|
2841 |
tcg_gen_andi_i32(tmp, tmp, 1 << 30); |
2842 |
store_cpu_field(tmp, vfp.xregs[rn]); |
2843 |
gen_lookup_tb(s); |
2844 |
break;
|
2845 |
case ARM_VFP_FPINST:
|
2846 |
case ARM_VFP_FPINST2:
|
2847 |
store_cpu_field(tmp, vfp.xregs[rn]); |
2848 |
break;
|
2849 |
default:
|
2850 |
return 1; |
2851 |
} |
2852 |
} else {
|
2853 |
gen_vfp_msr(tmp); |
2854 |
gen_mov_vreg_F0(0, rn);
|
2855 |
} |
2856 |
} |
2857 |
} |
2858 |
} else {
|
2859 |
/* data processing */
|
2860 |
/* The opcode is in bits 23, 21, 20 and 6. */
|
2861 |
op = ((insn >> 20) & 8) | ((insn >> 19) & 6) | ((insn >> 6) & 1); |
2862 |
if (dp) {
|
2863 |
if (op == 15) { |
2864 |
/* rn is opcode */
|
2865 |
rn = ((insn >> 15) & 0x1e) | ((insn >> 7) & 1); |
2866 |
} else {
|
2867 |
/* rn is register number */
|
2868 |
VFP_DREG_N(rn, insn); |
2869 |
} |
2870 |
|
2871 |
if (op == 15 && (rn == 15 || rn > 17)) { |
2872 |
/* Integer or single precision destination. */
|
2873 |
rd = VFP_SREG_D(insn); |
2874 |
} else {
|
2875 |
VFP_DREG_D(rd, insn); |
2876 |
} |
2877 |
|
2878 |
if (op == 15 && (rn == 16 || rn == 17)) { |
2879 |
/* Integer source. */
|
2880 |
rm = ((insn << 1) & 0x1e) | ((insn >> 5) & 1); |
2881 |
} else {
|
2882 |
VFP_DREG_M(rm, insn); |
2883 |
} |
2884 |
} else {
|
2885 |
rn = VFP_SREG_N(insn); |
2886 |
if (op == 15 && rn == 15) { |
2887 |
/* Double precision destination. */
|
2888 |
VFP_DREG_D(rd, insn); |
2889 |
} else {
|
2890 |
rd = VFP_SREG_D(insn); |
2891 |
} |
2892 |
rm = VFP_SREG_M(insn); |
2893 |
} |
2894 |
|
2895 |
veclen = env->vfp.vec_len; |
2896 |
if (op == 15 && rn > 3) |
2897 |
veclen = 0;
|
2898 |
|
2899 |
/* Shut up compiler warnings. */
|
2900 |
delta_m = 0;
|
2901 |
delta_d = 0;
|
2902 |
bank_mask = 0;
|
2903 |
|
2904 |
if (veclen > 0) { |
2905 |
if (dp)
|
2906 |
bank_mask = 0xc;
|
2907 |
else
|
2908 |
bank_mask = 0x18;
|
2909 |
|
2910 |
/* Figure out what type of vector operation this is. */
|
2911 |
if ((rd & bank_mask) == 0) { |
2912 |
/* scalar */
|
2913 |
veclen = 0;
|
2914 |
} else {
|
2915 |
if (dp)
|
2916 |
delta_d = (env->vfp.vec_stride >> 1) + 1; |
2917 |
else
|
2918 |
delta_d = env->vfp.vec_stride + 1;
|
2919 |
|
2920 |
if ((rm & bank_mask) == 0) { |
2921 |
/* mixed scalar/vector */
|
2922 |
delta_m = 0;
|
2923 |
} else {
|
2924 |
/* vector */
|
2925 |
delta_m = delta_d; |
2926 |
} |
2927 |
} |
2928 |
} |
2929 |
|
2930 |
/* Load the initial operands. */
|
2931 |
if (op == 15) { |
2932 |
switch (rn) {
|
2933 |
case 16: |
2934 |
case 17: |
2935 |
/* Integer source */
|
2936 |
gen_mov_F0_vreg(0, rm);
|
2937 |
break;
|
2938 |
case 8: |
2939 |
case 9: |
2940 |
/* Compare */
|
2941 |
gen_mov_F0_vreg(dp, rd); |
2942 |
gen_mov_F1_vreg(dp, rm); |
2943 |
break;
|
2944 |
case 10: |
2945 |
case 11: |
2946 |
/* Compare with zero */
|
2947 |
gen_mov_F0_vreg(dp, rd); |
2948 |
gen_vfp_F1_ld0(dp); |
2949 |
break;
|
2950 |
case 20: |
2951 |
case 21: |
2952 |
case 22: |
2953 |
case 23: |
2954 |
case 28: |
2955 |
case 29: |
2956 |
case 30: |
2957 |
case 31: |
2958 |
/* Source and destination the same. */
|
2959 |
gen_mov_F0_vreg(dp, rd); |
2960 |
break;
|
2961 |
default:
|
2962 |
/* One source operand. */
|
2963 |
gen_mov_F0_vreg(dp, rm); |
2964 |
break;
|
2965 |
} |
2966 |
} else {
|
2967 |
/* Two source operands. */
|
2968 |
gen_mov_F0_vreg(dp, rn); |
2969 |
gen_mov_F1_vreg(dp, rm); |
2970 |
} |
2971 |
|
2972 |
for (;;) {
|
2973 |
/* Perform the calculation. */
|
2974 |
switch (op) {
|
2975 |
case 0: /* mac: fd + (fn * fm) */ |
2976 |
gen_vfp_mul(dp); |
2977 |
gen_mov_F1_vreg(dp, rd); |
2978 |
gen_vfp_add(dp); |
2979 |
break;
|
2980 |
case 1: /* nmac: fd - (fn * fm) */ |
2981 |
gen_vfp_mul(dp); |
2982 |
gen_vfp_neg(dp); |
2983 |
gen_mov_F1_vreg(dp, rd); |
2984 |
gen_vfp_add(dp); |
2985 |
break;
|
2986 |
case 2: /* msc: -fd + (fn * fm) */ |
2987 |
gen_vfp_mul(dp); |
2988 |
gen_mov_F1_vreg(dp, rd); |
2989 |
gen_vfp_sub(dp); |
2990 |
break;
|
2991 |
case 3: /* nmsc: -fd - (fn * fm) */ |
2992 |
gen_vfp_mul(dp); |
2993 |
gen_vfp_neg(dp); |
2994 |
gen_mov_F1_vreg(dp, rd); |
2995 |
gen_vfp_sub(dp); |
2996 |
break;
|
2997 |
case 4: /* mul: fn * fm */ |
2998 |
gen_vfp_mul(dp); |
2999 |
break;
|
3000 |
case 5: /* nmul: -(fn * fm) */ |
3001 |
gen_vfp_mul(dp); |
3002 |
gen_vfp_neg(dp); |
3003 |
break;
|
3004 |
case 6: /* add: fn + fm */ |
3005 |
gen_vfp_add(dp); |
3006 |
break;
|
3007 |
case 7: /* sub: fn - fm */ |
3008 |
gen_vfp_sub(dp); |
3009 |
break;
|
3010 |
case 8: /* div: fn / fm */ |
3011 |
gen_vfp_div(dp); |
3012 |
break;
|
3013 |
case 14: /* fconst */ |
3014 |
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
3015 |
return 1; |
3016 |
|
3017 |
n = (insn << 12) & 0x80000000; |
3018 |
i = ((insn >> 12) & 0x70) | (insn & 0xf); |
3019 |
if (dp) {
|
3020 |
if (i & 0x40) |
3021 |
i |= 0x3f80;
|
3022 |
else
|
3023 |
i |= 0x4000;
|
3024 |
n |= i << 16;
|
3025 |
tcg_gen_movi_i64(cpu_F0d, ((uint64_t)n) << 32);
|
3026 |
} else {
|
3027 |
if (i & 0x40) |
3028 |
i |= 0x780;
|
3029 |
else
|
3030 |
i |= 0x800;
|
3031 |
n |= i << 19;
|
3032 |
tcg_gen_movi_i32(cpu_F0s, n); |
3033 |
} |
3034 |
break;
|
3035 |
case 15: /* extension space */ |
3036 |
switch (rn) {
|
3037 |
case 0: /* cpy */ |
3038 |
/* no-op */
|
3039 |
break;
|
3040 |
case 1: /* abs */ |
3041 |
gen_vfp_abs(dp); |
3042 |
break;
|
3043 |
case 2: /* neg */ |
3044 |
gen_vfp_neg(dp); |
3045 |
break;
|
3046 |
case 3: /* sqrt */ |
3047 |
gen_vfp_sqrt(dp); |
3048 |
break;
|
3049 |
case 4: /* vcvtb.f32.f16 */ |
3050 |
if (!arm_feature(env, ARM_FEATURE_VFP_FP16))
|
3051 |
return 1; |
3052 |
tmp = gen_vfp_mrs(); |
3053 |
tcg_gen_ext16u_i32(tmp, tmp); |
3054 |
gen_helper_vfp_fcvt_f16_to_f32(cpu_F0s, tmp, cpu_env); |
3055 |
dead_tmp(tmp); |
3056 |
break;
|
3057 |
case 5: /* vcvtt.f32.f16 */ |
3058 |
if (!arm_feature(env, ARM_FEATURE_VFP_FP16))
|
3059 |
return 1; |
3060 |
tmp = gen_vfp_mrs(); |
3061 |
tcg_gen_shri_i32(tmp, tmp, 16);
|
3062 |
gen_helper_vfp_fcvt_f16_to_f32(cpu_F0s, tmp, cpu_env); |
3063 |
dead_tmp(tmp); |
3064 |
break;
|
3065 |
case 6: /* vcvtb.f16.f32 */ |
3066 |
if (!arm_feature(env, ARM_FEATURE_VFP_FP16))
|
3067 |
return 1; |
3068 |
tmp = new_tmp(); |
3069 |
gen_helper_vfp_fcvt_f32_to_f16(tmp, cpu_F0s, cpu_env); |
3070 |
gen_mov_F0_vreg(0, rd);
|
3071 |
tmp2 = gen_vfp_mrs(); |
3072 |
tcg_gen_andi_i32(tmp2, tmp2, 0xffff0000);
|
3073 |
tcg_gen_or_i32(tmp, tmp, tmp2); |
3074 |
dead_tmp(tmp2); |
3075 |
gen_vfp_msr(tmp); |
3076 |
break;
|
3077 |
case 7: /* vcvtt.f16.f32 */ |
3078 |
if (!arm_feature(env, ARM_FEATURE_VFP_FP16))
|
3079 |
return 1; |
3080 |
tmp = new_tmp(); |
3081 |
gen_helper_vfp_fcvt_f32_to_f16(tmp, cpu_F0s, cpu_env); |
3082 |
tcg_gen_shli_i32(tmp, tmp, 16);
|
3083 |
gen_mov_F0_vreg(0, rd);
|
3084 |
tmp2 = gen_vfp_mrs(); |
3085 |
tcg_gen_ext16u_i32(tmp2, tmp2); |
3086 |
tcg_gen_or_i32(tmp, tmp, tmp2); |
3087 |
dead_tmp(tmp2); |
3088 |
gen_vfp_msr(tmp); |
3089 |
break;
|
3090 |
case 8: /* cmp */ |
3091 |
gen_vfp_cmp(dp); |
3092 |
break;
|
3093 |
case 9: /* cmpe */ |
3094 |
gen_vfp_cmpe(dp); |
3095 |
break;
|
3096 |
case 10: /* cmpz */ |
3097 |
gen_vfp_cmp(dp); |
3098 |
break;
|
3099 |
case 11: /* cmpez */ |
3100 |
gen_vfp_F1_ld0(dp); |
3101 |
gen_vfp_cmpe(dp); |
3102 |
break;
|
3103 |
case 15: /* single<->double conversion */ |
3104 |
if (dp)
|
3105 |
gen_helper_vfp_fcvtsd(cpu_F0s, cpu_F0d, cpu_env); |
3106 |
else
|
3107 |
gen_helper_vfp_fcvtds(cpu_F0d, cpu_F0s, cpu_env); |
3108 |
break;
|
3109 |
case 16: /* fuito */ |
3110 |
gen_vfp_uito(dp); |
3111 |
break;
|
3112 |
case 17: /* fsito */ |
3113 |
gen_vfp_sito(dp); |
3114 |
break;
|
3115 |
case 20: /* fshto */ |
3116 |
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
3117 |
return 1; |
3118 |
gen_vfp_shto(dp, 16 - rm);
|
3119 |
break;
|
3120 |
case 21: /* fslto */ |
3121 |
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
3122 |
return 1; |
3123 |
gen_vfp_slto(dp, 32 - rm);
|
3124 |
break;
|
3125 |
case 22: /* fuhto */ |
3126 |
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
3127 |
return 1; |
3128 |
gen_vfp_uhto(dp, 16 - rm);
|
3129 |
break;
|
3130 |
case 23: /* fulto */ |
3131 |
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
3132 |
return 1; |
3133 |
gen_vfp_ulto(dp, 32 - rm);
|
3134 |
break;
|
3135 |
case 24: /* ftoui */ |
3136 |
gen_vfp_toui(dp); |
3137 |
break;
|
3138 |
case 25: /* ftouiz */ |
3139 |
gen_vfp_touiz(dp); |
3140 |
break;
|
3141 |
case 26: /* ftosi */ |
3142 |
gen_vfp_tosi(dp); |
3143 |
break;
|
3144 |
case 27: /* ftosiz */ |
3145 |
gen_vfp_tosiz(dp); |
3146 |
break;
|
3147 |
case 28: /* ftosh */ |
3148 |
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
3149 |
return 1; |
3150 |
gen_vfp_tosh(dp, 16 - rm);
|
3151 |
break;
|
3152 |
case 29: /* ftosl */ |
3153 |
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
3154 |
return 1; |
3155 |
gen_vfp_tosl(dp, 32 - rm);
|
3156 |
break;
|
3157 |
case 30: /* ftouh */ |
3158 |
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
3159 |
return 1; |
3160 |
gen_vfp_touh(dp, 16 - rm);
|
3161 |
break;
|
3162 |
case 31: /* ftoul */ |
3163 |
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
3164 |
return 1; |
3165 |
gen_vfp_toul(dp, 32 - rm);
|
3166 |
break;
|
3167 |
default: /* undefined */ |
3168 |
printf ("rn:%d\n", rn);
|
3169 |
return 1; |
3170 |
} |
3171 |
break;
|
3172 |
default: /* undefined */ |
3173 |
printf ("op:%d\n", op);
|
3174 |
return 1; |
3175 |
} |
3176 |
|
3177 |
/* Write back the result. */
|
3178 |
if (op == 15 && (rn >= 8 && rn <= 11)) |
3179 |
; /* Comparison, do nothing. */
|
3180 |
else if (op == 15 && rn > 17) |
3181 |
/* Integer result. */
|
3182 |
gen_mov_vreg_F0(0, rd);
|
3183 |
else if (op == 15 && rn == 15) |
3184 |
/* conversion */
|
3185 |
gen_mov_vreg_F0(!dp, rd); |
3186 |
else
|
3187 |
gen_mov_vreg_F0(dp, rd); |
3188 |
|
3189 |
/* break out of the loop if we have finished */
|
3190 |
if (veclen == 0) |
3191 |
break;
|
3192 |
|
3193 |
if (op == 15 && delta_m == 0) { |
3194 |
/* single source one-many */
|
3195 |
while (veclen--) {
|
3196 |
rd = ((rd + delta_d) & (bank_mask - 1))
|
3197 |
| (rd & bank_mask); |
3198 |
gen_mov_vreg_F0(dp, rd); |
3199 |
} |
3200 |
break;
|
3201 |
} |
3202 |
/* Setup the next operands. */
|
3203 |
veclen--; |
3204 |
rd = ((rd + delta_d) & (bank_mask - 1))
|
3205 |
| (rd & bank_mask); |
3206 |
|
3207 |
if (op == 15) { |
3208 |
/* One source operand. */
|
3209 |
rm = ((rm + delta_m) & (bank_mask - 1))
|
3210 |
| (rm & bank_mask); |
3211 |
gen_mov_F0_vreg(dp, rm); |
3212 |
} else {
|
3213 |
/* Two source operands. */
|
3214 |
rn = ((rn + delta_d) & (bank_mask - 1))
|
3215 |
| (rn & bank_mask); |
3216 |
gen_mov_F0_vreg(dp, rn); |
3217 |
if (delta_m) {
|
3218 |
rm = ((rm + delta_m) & (bank_mask - 1))
|
3219 |
| (rm & bank_mask); |
3220 |
gen_mov_F1_vreg(dp, rm); |
3221 |
} |
3222 |
} |
3223 |
} |
3224 |
} |
3225 |
break;
|
3226 |
case 0xc: |
3227 |
case 0xd: |
3228 |
if (dp && (insn & 0x03e00000) == 0x00400000) { |
3229 |
/* two-register transfer */
|
3230 |
rn = (insn >> 16) & 0xf; |
3231 |
rd = (insn >> 12) & 0xf; |
3232 |
if (dp) {
|
3233 |
VFP_DREG_M(rm, insn); |
3234 |
} else {
|
3235 |
rm = VFP_SREG_M(insn); |
3236 |
} |
3237 |
|
3238 |
if (insn & ARM_CP_RW_BIT) {
|
3239 |
/* vfp->arm */
|
3240 |
if (dp) {
|
3241 |
gen_mov_F0_vreg(0, rm * 2); |
3242 |
tmp = gen_vfp_mrs(); |
3243 |
store_reg(s, rd, tmp); |
3244 |
gen_mov_F0_vreg(0, rm * 2 + 1); |
3245 |
tmp = gen_vfp_mrs(); |
3246 |
store_reg(s, rn, tmp); |
3247 |
} else {
|
3248 |
gen_mov_F0_vreg(0, rm);
|
3249 |
tmp = gen_vfp_mrs(); |
3250 |
store_reg(s, rn, tmp); |
3251 |
gen_mov_F0_vreg(0, rm + 1); |
3252 |
tmp = gen_vfp_mrs(); |
3253 |
store_reg(s, rd, tmp); |
3254 |
} |
3255 |
} else {
|
3256 |
/* arm->vfp */
|
3257 |
if (dp) {
|
3258 |
tmp = load_reg(s, rd); |
3259 |
gen_vfp_msr(tmp); |
3260 |
gen_mov_vreg_F0(0, rm * 2); |
3261 |
tmp = load_reg(s, rn); |
3262 |
gen_vfp_msr(tmp); |
3263 |
gen_mov_vreg_F0(0, rm * 2 + 1); |
3264 |
} else {
|
3265 |
tmp = load_reg(s, rn); |
3266 |
gen_vfp_msr(tmp); |
3267 |
gen_mov_vreg_F0(0, rm);
|
3268 |
tmp = load_reg(s, rd); |
3269 |
gen_vfp_msr(tmp); |
3270 |
gen_mov_vreg_F0(0, rm + 1); |
3271 |
} |
3272 |
} |
3273 |
} else {
|
3274 |
/* Load/store */
|
3275 |
rn = (insn >> 16) & 0xf; |
3276 |
if (dp)
|
3277 |
VFP_DREG_D(rd, insn); |
3278 |
else
|
3279 |
rd = VFP_SREG_D(insn); |
3280 |
if (s->thumb && rn == 15) { |
3281 |
addr = new_tmp(); |
3282 |
tcg_gen_movi_i32(addr, s->pc & ~2);
|
3283 |
} else {
|
3284 |
addr = load_reg(s, rn); |
3285 |
} |
3286 |
if ((insn & 0x01200000) == 0x01000000) { |
3287 |
/* Single load/store */
|
3288 |
offset = (insn & 0xff) << 2; |
3289 |
if ((insn & (1 << 23)) == 0) |
3290 |
offset = -offset; |
3291 |
tcg_gen_addi_i32(addr, addr, offset); |
3292 |
if (insn & (1 << 20)) { |
3293 |
gen_vfp_ld(s, dp, addr); |
3294 |
gen_mov_vreg_F0(dp, rd); |
3295 |
} else {
|
3296 |
gen_mov_F0_vreg(dp, rd); |
3297 |
gen_vfp_st(s, dp, addr); |
3298 |
} |
3299 |
dead_tmp(addr); |
3300 |
} else {
|
3301 |
/* load/store multiple */
|
3302 |
if (dp)
|
3303 |
n = (insn >> 1) & 0x7f; |
3304 |
else
|
3305 |
n = insn & 0xff;
|
3306 |
|
3307 |
if (insn & (1 << 24)) /* pre-decrement */ |
3308 |
tcg_gen_addi_i32(addr, addr, -((insn & 0xff) << 2)); |
3309 |
|
3310 |
if (dp)
|
3311 |
offset = 8;
|
3312 |
else
|
3313 |
offset = 4;
|
3314 |
for (i = 0; i < n; i++) { |
3315 |
if (insn & ARM_CP_RW_BIT) {
|
3316 |
/* load */
|
3317 |
gen_vfp_ld(s, dp, addr); |
3318 |
gen_mov_vreg_F0(dp, rd + i); |
3319 |
} else {
|
3320 |
/* store */
|
3321 |
gen_mov_F0_vreg(dp, rd + i); |
3322 |
gen_vfp_st(s, dp, addr); |
3323 |
} |
3324 |
tcg_gen_addi_i32(addr, addr, offset); |
3325 |
} |
3326 |
if (insn & (1 << 21)) { |
3327 |
/* writeback */
|
3328 |
if (insn & (1 << 24)) |
3329 |
offset = -offset * n; |
3330 |
else if (dp && (insn & 1)) |
3331 |
offset = 4;
|
3332 |
else
|
3333 |
offset = 0;
|
3334 |
|
3335 |
if (offset != 0) |
3336 |
tcg_gen_addi_i32(addr, addr, offset); |
3337 |
store_reg(s, rn, addr); |
3338 |
} else {
|
3339 |
dead_tmp(addr); |
3340 |
} |
3341 |
} |
3342 |
} |
3343 |
break;
|
3344 |
default:
|
3345 |
/* Should never happen. */
|
3346 |
return 1; |
3347 |
} |
3348 |
return 0; |
3349 |
} |
3350 |
|
3351 |
static inline void gen_goto_tb(DisasContext *s, int n, uint32_t dest) |
3352 |
{ |
3353 |
TranslationBlock *tb; |
3354 |
|
3355 |
tb = s->tb; |
3356 |
if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK)) {
|
3357 |
tcg_gen_goto_tb(n); |
3358 |
gen_set_pc_im(dest); |
3359 |
tcg_gen_exit_tb((long)tb + n);
|
3360 |
} else {
|
3361 |
gen_set_pc_im(dest); |
3362 |
tcg_gen_exit_tb(0);
|
3363 |
} |
3364 |
} |
3365 |
|
3366 |
static inline void gen_jmp (DisasContext *s, uint32_t dest) |
3367 |
{ |
3368 |
if (unlikely(s->singlestep_enabled)) {
|
3369 |
/* An indirect jump so that we still trigger the debug exception. */
|
3370 |
if (s->thumb)
|
3371 |
dest |= 1;
|
3372 |
gen_bx_im(s, dest); |
3373 |
} else {
|
3374 |
gen_goto_tb(s, 0, dest);
|
3375 |
s->is_jmp = DISAS_TB_JUMP; |
3376 |
} |
3377 |
} |
3378 |
|
3379 |
static inline void gen_mulxy(TCGv t0, TCGv t1, int x, int y) |
3380 |
{ |
3381 |
if (x)
|
3382 |
tcg_gen_sari_i32(t0, t0, 16);
|
3383 |
else
|
3384 |
gen_sxth(t0); |
3385 |
if (y)
|
3386 |
tcg_gen_sari_i32(t1, t1, 16);
|
3387 |
else
|
3388 |
gen_sxth(t1); |
3389 |
tcg_gen_mul_i32(t0, t0, t1); |
3390 |
} |
3391 |
|
3392 |
/* Return the mask of PSR bits set by a MSR instruction. */
|
3393 |
static uint32_t msr_mask(CPUState *env, DisasContext *s, int flags, int spsr) { |
3394 |
uint32_t mask; |
3395 |
|
3396 |
mask = 0;
|
3397 |
if (flags & (1 << 0)) |
3398 |
mask |= 0xff;
|
3399 |
if (flags & (1 << 1)) |
3400 |
mask |= 0xff00;
|
3401 |
if (flags & (1 << 2)) |
3402 |
mask |= 0xff0000;
|
3403 |
if (flags & (1 << 3)) |
3404 |
mask |= 0xff000000;
|
3405 |
|
3406 |
/* Mask out undefined bits. */
|
3407 |
mask &= ~CPSR_RESERVED; |
3408 |
if (!arm_feature(env, ARM_FEATURE_V6))
|
3409 |
mask &= ~(CPSR_E | CPSR_GE); |
3410 |
if (!arm_feature(env, ARM_FEATURE_THUMB2))
|
3411 |
mask &= ~CPSR_IT; |
3412 |
/* Mask out execution state bits. */
|
3413 |
if (!spsr)
|
3414 |
mask &= ~CPSR_EXEC; |
3415 |
/* Mask out privileged bits. */
|
3416 |
if (IS_USER(s))
|
3417 |
mask &= CPSR_USER; |
3418 |
return mask;
|
3419 |
} |
3420 |
|
3421 |
/* Returns nonzero if access to the PSR is not permitted. Marks t0 as dead. */
|
3422 |
static int gen_set_psr(DisasContext *s, uint32_t mask, int spsr, TCGv t0) |
3423 |
{ |
3424 |
TCGv tmp; |
3425 |
if (spsr) {
|
3426 |
/* ??? This is also undefined in system mode. */
|
3427 |
if (IS_USER(s))
|
3428 |
return 1; |
3429 |
|
3430 |
tmp = load_cpu_field(spsr); |
3431 |
tcg_gen_andi_i32(tmp, tmp, ~mask); |
3432 |
tcg_gen_andi_i32(t0, t0, mask); |
3433 |
tcg_gen_or_i32(tmp, tmp, t0); |
3434 |
store_cpu_field(tmp, spsr); |
3435 |
} else {
|
3436 |
gen_set_cpsr(t0, mask); |
3437 |
} |
3438 |
dead_tmp(t0); |
3439 |
gen_lookup_tb(s); |
3440 |
return 0; |
3441 |
} |
3442 |
|
3443 |
/* Returns nonzero if access to the PSR is not permitted. */
|
3444 |
static int gen_set_psr_im(DisasContext *s, uint32_t mask, int spsr, uint32_t val) |
3445 |
{ |
3446 |
TCGv tmp; |
3447 |
tmp = new_tmp(); |
3448 |
tcg_gen_movi_i32(tmp, val); |
3449 |
return gen_set_psr(s, mask, spsr, tmp);
|
3450 |
} |
3451 |
|
3452 |
/* Generate an old-style exception return. Marks pc as dead. */
|
3453 |
static void gen_exception_return(DisasContext *s, TCGv pc) |
3454 |
{ |
3455 |
TCGv tmp; |
3456 |
store_reg(s, 15, pc);
|
3457 |
tmp = load_cpu_field(spsr); |
3458 |
gen_set_cpsr(tmp, 0xffffffff);
|
3459 |
dead_tmp(tmp); |
3460 |
s->is_jmp = DISAS_UPDATE; |
3461 |
} |
3462 |
|
3463 |
/* Generate a v6 exception return. Marks both values as dead. */
|
3464 |
static void gen_rfe(DisasContext *s, TCGv pc, TCGv cpsr) |
3465 |
{ |
3466 |
gen_set_cpsr(cpsr, 0xffffffff);
|
3467 |
dead_tmp(cpsr); |
3468 |
store_reg(s, 15, pc);
|
3469 |
s->is_jmp = DISAS_UPDATE; |
3470 |
} |
3471 |
|
3472 |
static inline void |
3473 |
gen_set_condexec (DisasContext *s) |
3474 |
{ |
3475 |
if (s->condexec_mask) {
|
3476 |
uint32_t val = (s->condexec_cond << 4) | (s->condexec_mask >> 1); |
3477 |
TCGv tmp = new_tmp(); |
3478 |
tcg_gen_movi_i32(tmp, val); |
3479 |
store_cpu_field(tmp, condexec_bits); |
3480 |
} |
3481 |
} |
3482 |
|
3483 |
static void gen_nop_hint(DisasContext *s, int val) |
3484 |
{ |
3485 |
switch (val) {
|
3486 |
case 3: /* wfi */ |
3487 |
gen_set_pc_im(s->pc); |
3488 |
s->is_jmp = DISAS_WFI; |
3489 |
break;
|
3490 |
case 2: /* wfe */ |
3491 |
case 4: /* sev */ |
3492 |
/* TODO: Implement SEV and WFE. May help SMP performance. */
|
3493 |
default: /* nop */ |
3494 |
break;
|
3495 |
} |
3496 |
} |
3497 |
|
3498 |
#define CPU_V001 cpu_V0, cpu_V0, cpu_V1
|
3499 |
|
3500 |
static inline int gen_neon_add(int size, TCGv t0, TCGv t1) |
3501 |
{ |
3502 |
switch (size) {
|
3503 |
case 0: gen_helper_neon_add_u8(t0, t0, t1); break; |
3504 |
case 1: gen_helper_neon_add_u16(t0, t0, t1); break; |
3505 |
case 2: tcg_gen_add_i32(t0, t0, t1); break; |
3506 |
default: return 1; |
3507 |
} |
3508 |
return 0; |
3509 |
} |
3510 |
|
3511 |
static inline void gen_neon_rsb(int size, TCGv t0, TCGv t1) |
3512 |
{ |
3513 |
switch (size) {
|
3514 |
case 0: gen_helper_neon_sub_u8(t0, t1, t0); break; |
3515 |
case 1: gen_helper_neon_sub_u16(t0, t1, t0); break; |
3516 |
case 2: tcg_gen_sub_i32(t0, t1, t0); break; |
3517 |
default: return; |
3518 |
} |
3519 |
} |
3520 |
|
3521 |
/* 32-bit pairwise ops end up the same as the elementwise versions. */
|
3522 |
#define gen_helper_neon_pmax_s32 gen_helper_neon_max_s32
|
3523 |
#define gen_helper_neon_pmax_u32 gen_helper_neon_max_u32
|
3524 |
#define gen_helper_neon_pmin_s32 gen_helper_neon_min_s32
|
3525 |
#define gen_helper_neon_pmin_u32 gen_helper_neon_min_u32
|
3526 |
|
3527 |
/* FIXME: This is wrong. They set the wrong overflow bit. */
|
3528 |
#define gen_helper_neon_qadd_s32(a, e, b, c) gen_helper_add_saturate(a, b, c)
|
3529 |
#define gen_helper_neon_qadd_u32(a, e, b, c) gen_helper_add_usaturate(a, b, c)
|
3530 |
#define gen_helper_neon_qsub_s32(a, e, b, c) gen_helper_sub_saturate(a, b, c)
|
3531 |
#define gen_helper_neon_qsub_u32(a, e, b, c) gen_helper_sub_usaturate(a, b, c)
|
3532 |
|
3533 |
#define GEN_NEON_INTEGER_OP_ENV(name) do { \ |
3534 |
switch ((size << 1) | u) { \ |
3535 |
case 0: \ |
3536 |
gen_helper_neon_##name##_s8(tmp, cpu_env, tmp, tmp2); \ |
3537 |
break; \
|
3538 |
case 1: \ |
3539 |
gen_helper_neon_##name##_u8(tmp, cpu_env, tmp, tmp2); \ |
3540 |
break; \
|
3541 |
case 2: \ |
3542 |
gen_helper_neon_##name##_s16(tmp, cpu_env, tmp, tmp2); \ |
3543 |
break; \
|
3544 |
case 3: \ |
3545 |
gen_helper_neon_##name##_u16(tmp, cpu_env, tmp, tmp2); \ |
3546 |
break; \
|
3547 |
case 4: \ |
3548 |
gen_helper_neon_##name##_s32(tmp, cpu_env, tmp, tmp2); \ |
3549 |
break; \
|
3550 |
case 5: \ |
3551 |
gen_helper_neon_##name##_u32(tmp, cpu_env, tmp, tmp2); \ |
3552 |
break; \
|
3553 |
default: return 1; \ |
3554 |
}} while (0) |
3555 |
|
3556 |
#define GEN_NEON_INTEGER_OP(name) do { \ |
3557 |
switch ((size << 1) | u) { \ |
3558 |
case 0: \ |
3559 |
gen_helper_neon_##name##_s8(tmp, tmp, tmp2); \ |
3560 |
break; \
|
3561 |
case 1: \ |
3562 |
gen_helper_neon_##name##_u8(tmp, tmp, tmp2); \ |
3563 |
break; \
|
3564 |
case 2: \ |
3565 |
gen_helper_neon_##name##_s16(tmp, tmp, tmp2); \ |
3566 |
break; \
|
3567 |
case 3: \ |
3568 |
gen_helper_neon_##name##_u16(tmp, tmp, tmp2); \ |
3569 |
break; \
|
3570 |
case 4: \ |
3571 |
gen_helper_neon_##name##_s32(tmp, tmp, tmp2); \ |
3572 |
break; \
|
3573 |
case 5: \ |
3574 |
gen_helper_neon_##name##_u32(tmp, tmp, tmp2); \ |
3575 |
break; \
|
3576 |
default: return 1; \ |
3577 |
}} while (0) |
3578 |
|
3579 |
static TCGv neon_load_scratch(int scratch) |
3580 |
{ |
3581 |
TCGv tmp = new_tmp(); |
3582 |
tcg_gen_ld_i32(tmp, cpu_env, offsetof(CPUARMState, vfp.scratch[scratch])); |
3583 |
return tmp;
|
3584 |
} |
3585 |
|
3586 |
static void neon_store_scratch(int scratch, TCGv var) |
3587 |
{ |
3588 |
tcg_gen_st_i32(var, cpu_env, offsetof(CPUARMState, vfp.scratch[scratch])); |
3589 |
dead_tmp(var); |
3590 |
} |
3591 |
|
3592 |
static inline TCGv neon_get_scalar(int size, int reg) |
3593 |
{ |
3594 |
TCGv tmp; |
3595 |
if (size == 1) { |
3596 |
tmp = neon_load_reg(reg >> 1, reg & 1); |
3597 |
} else {
|
3598 |
tmp = neon_load_reg(reg >> 2, (reg >> 1) & 1); |
3599 |
if (reg & 1) { |
3600 |
gen_neon_dup_low16(tmp); |
3601 |
} else {
|
3602 |
gen_neon_dup_high16(tmp); |
3603 |
} |
3604 |
} |
3605 |
return tmp;
|
3606 |
} |
3607 |
|
3608 |
static void gen_neon_unzip_u8(TCGv t0, TCGv t1) |
3609 |
{ |
3610 |
TCGv rd, rm, tmp; |
3611 |
|
3612 |
rd = new_tmp(); |
3613 |
rm = new_tmp(); |
3614 |
tmp = new_tmp(); |
3615 |
|
3616 |
tcg_gen_andi_i32(rd, t0, 0xff);
|
3617 |
tcg_gen_shri_i32(tmp, t0, 8);
|
3618 |
tcg_gen_andi_i32(tmp, tmp, 0xff00);
|
3619 |
tcg_gen_or_i32(rd, rd, tmp); |
3620 |
tcg_gen_shli_i32(tmp, t1, 16);
|
3621 |
tcg_gen_andi_i32(tmp, tmp, 0xff0000);
|
3622 |
tcg_gen_or_i32(rd, rd, tmp); |
3623 |
tcg_gen_shli_i32(tmp, t1, 8);
|
3624 |
tcg_gen_andi_i32(tmp, tmp, 0xff000000);
|
3625 |
tcg_gen_or_i32(rd, rd, tmp); |
3626 |
|
3627 |
tcg_gen_shri_i32(rm, t0, 8);
|
3628 |
tcg_gen_andi_i32(rm, rm, 0xff);
|
3629 |
tcg_gen_shri_i32(tmp, t0, 16);
|
3630 |
tcg_gen_andi_i32(tmp, tmp, 0xff00);
|
3631 |
tcg_gen_or_i32(rm, rm, tmp); |
3632 |
tcg_gen_shli_i32(tmp, t1, 8);
|
3633 |
tcg_gen_andi_i32(tmp, tmp, 0xff0000);
|
3634 |
tcg_gen_or_i32(rm, rm, tmp); |
3635 |
tcg_gen_andi_i32(tmp, t1, 0xff000000);
|
3636 |
tcg_gen_or_i32(t1, rm, tmp); |
3637 |
tcg_gen_mov_i32(t0, rd); |
3638 |
|
3639 |
dead_tmp(tmp); |
3640 |
dead_tmp(rm); |
3641 |
dead_tmp(rd); |
3642 |
} |
3643 |
|
3644 |
static void gen_neon_zip_u8(TCGv t0, TCGv t1) |
3645 |
{ |
3646 |
TCGv rd, rm, tmp; |
3647 |
|
3648 |
rd = new_tmp(); |
3649 |
rm = new_tmp(); |
3650 |
tmp = new_tmp(); |
3651 |
|
3652 |
tcg_gen_andi_i32(rd, t0, 0xff);
|
3653 |
tcg_gen_shli_i32(tmp, t1, 8);
|
3654 |
tcg_gen_andi_i32(tmp, tmp, 0xff00);
|
3655 |
tcg_gen_or_i32(rd, rd, tmp); |
3656 |
tcg_gen_shli_i32(tmp, t0, 16);
|
3657 |
tcg_gen_andi_i32(tmp, tmp, 0xff0000);
|
3658 |
tcg_gen_or_i32(rd, rd, tmp); |
3659 |
tcg_gen_shli_i32(tmp, t1, 24);
|
3660 |
tcg_gen_andi_i32(tmp, tmp, 0xff000000);
|
3661 |
tcg_gen_or_i32(rd, rd, tmp); |
3662 |
|
3663 |
tcg_gen_andi_i32(rm, t1, 0xff000000);
|
3664 |
tcg_gen_shri_i32(tmp, t0, 8);
|
3665 |
tcg_gen_andi_i32(tmp, tmp, 0xff0000);
|
3666 |
tcg_gen_or_i32(rm, rm, tmp); |
3667 |
tcg_gen_shri_i32(tmp, t1, 8);
|
3668 |
tcg_gen_andi_i32(tmp, tmp, 0xff00);
|
3669 |
tcg_gen_or_i32(rm, rm, tmp); |
3670 |
tcg_gen_shri_i32(tmp, t0, 16);
|
3671 |
tcg_gen_andi_i32(tmp, tmp, 0xff);
|
3672 |
tcg_gen_or_i32(t1, rm, tmp); |
3673 |
tcg_gen_mov_i32(t0, rd); |
3674 |
|
3675 |
dead_tmp(tmp); |
3676 |
dead_tmp(rm); |
3677 |
dead_tmp(rd); |
3678 |
} |
3679 |
|
3680 |
static void gen_neon_zip_u16(TCGv t0, TCGv t1) |
3681 |
{ |
3682 |
TCGv tmp, tmp2; |
3683 |
|
3684 |
tmp = new_tmp(); |
3685 |
tmp2 = new_tmp(); |
3686 |
|
3687 |
tcg_gen_andi_i32(tmp, t0, 0xffff);
|
3688 |
tcg_gen_shli_i32(tmp2, t1, 16);
|
3689 |
tcg_gen_or_i32(tmp, tmp, tmp2); |
3690 |
tcg_gen_andi_i32(t1, t1, 0xffff0000);
|
3691 |
tcg_gen_shri_i32(tmp2, t0, 16);
|
3692 |
tcg_gen_or_i32(t1, t1, tmp2); |
3693 |
tcg_gen_mov_i32(t0, tmp); |
3694 |
|
3695 |
dead_tmp(tmp2); |
3696 |
dead_tmp(tmp); |
3697 |
} |
3698 |
|
3699 |
static void gen_neon_unzip(int reg, int q, int tmp, int size) |
3700 |
{ |
3701 |
int n;
|
3702 |
TCGv t0, t1; |
3703 |
|
3704 |
for (n = 0; n < q + 1; n += 2) { |
3705 |
t0 = neon_load_reg(reg, n); |
3706 |
t1 = neon_load_reg(reg, n + 1);
|
3707 |
switch (size) {
|
3708 |
case 0: gen_neon_unzip_u8(t0, t1); break; |
3709 |
case 1: gen_neon_zip_u16(t0, t1); break; /* zip and unzip are the same. */ |
3710 |
case 2: /* no-op */; break; |
3711 |
default: abort();
|
3712 |
} |
3713 |
neon_store_scratch(tmp + n, t0); |
3714 |
neon_store_scratch(tmp + n + 1, t1);
|
3715 |
} |
3716 |
} |
3717 |
|
3718 |
static void gen_neon_trn_u8(TCGv t0, TCGv t1) |
3719 |
{ |
3720 |
TCGv rd, tmp; |
3721 |
|
3722 |
rd = new_tmp(); |
3723 |
tmp = new_tmp(); |
3724 |
|
3725 |
tcg_gen_shli_i32(rd, t0, 8);
|
3726 |
tcg_gen_andi_i32(rd, rd, 0xff00ff00);
|
3727 |
tcg_gen_andi_i32(tmp, t1, 0x00ff00ff);
|
3728 |
tcg_gen_or_i32(rd, rd, tmp); |
3729 |
|
3730 |
tcg_gen_shri_i32(t1, t1, 8);
|
3731 |
tcg_gen_andi_i32(t1, t1, 0x00ff00ff);
|
3732 |
tcg_gen_andi_i32(tmp, t0, 0xff00ff00);
|
3733 |
tcg_gen_or_i32(t1, t1, tmp); |
3734 |
tcg_gen_mov_i32(t0, rd); |
3735 |
|
3736 |
dead_tmp(tmp); |
3737 |
dead_tmp(rd); |
3738 |
} |
3739 |
|
3740 |
static void gen_neon_trn_u16(TCGv t0, TCGv t1) |
3741 |
{ |
3742 |
TCGv rd, tmp; |
3743 |
|
3744 |
rd = new_tmp(); |
3745 |
tmp = new_tmp(); |
3746 |
|
3747 |
tcg_gen_shli_i32(rd, t0, 16);
|
3748 |
tcg_gen_andi_i32(tmp, t1, 0xffff);
|
3749 |
tcg_gen_or_i32(rd, rd, tmp); |
3750 |
tcg_gen_shri_i32(t1, t1, 16);
|
3751 |
tcg_gen_andi_i32(tmp, t0, 0xffff0000);
|
3752 |
tcg_gen_or_i32(t1, t1, tmp); |
3753 |
tcg_gen_mov_i32(t0, rd); |
3754 |
|
3755 |
dead_tmp(tmp); |
3756 |
dead_tmp(rd); |
3757 |
} |
3758 |
|
3759 |
|
3760 |
static struct { |
3761 |
int nregs;
|
3762 |
int interleave;
|
3763 |
int spacing;
|
3764 |
} neon_ls_element_type[11] = {
|
3765 |
{4, 4, 1}, |
3766 |
{4, 4, 2}, |
3767 |
{4, 1, 1}, |
3768 |
{4, 2, 1}, |
3769 |
{3, 3, 1}, |
3770 |
{3, 3, 2}, |
3771 |
{3, 1, 1}, |
3772 |
{1, 1, 1}, |
3773 |
{2, 2, 1}, |
3774 |
{2, 2, 2}, |
3775 |
{2, 1, 1} |
3776 |
}; |
3777 |
|
3778 |
/* Translate a NEON load/store element instruction. Return nonzero if the
|
3779 |
instruction is invalid. */
|
3780 |
static int disas_neon_ls_insn(CPUState * env, DisasContext *s, uint32_t insn) |
3781 |
{ |
3782 |
int rd, rn, rm;
|
3783 |
int op;
|
3784 |
int nregs;
|
3785 |
int interleave;
|
3786 |
int spacing;
|
3787 |
int stride;
|
3788 |
int size;
|
3789 |
int reg;
|
3790 |
int pass;
|
3791 |
int load;
|
3792 |
int shift;
|
3793 |
int n;
|
3794 |
TCGv addr; |
3795 |
TCGv tmp; |
3796 |
TCGv tmp2; |
3797 |
TCGv_i64 tmp64; |
3798 |
|
3799 |
if (!vfp_enabled(env))
|
3800 |
return 1; |
3801 |
VFP_DREG_D(rd, insn); |
3802 |
rn = (insn >> 16) & 0xf; |
3803 |
rm = insn & 0xf;
|
3804 |
load = (insn & (1 << 21)) != 0; |
3805 |
addr = new_tmp(); |
3806 |
if ((insn & (1 << 23)) == 0) { |
3807 |
/* Load store all elements. */
|
3808 |
op = (insn >> 8) & 0xf; |
3809 |
size = (insn >> 6) & 3; |
3810 |
if (op > 10) |
3811 |
return 1; |
3812 |
nregs = neon_ls_element_type[op].nregs; |
3813 |
interleave = neon_ls_element_type[op].interleave; |
3814 |
spacing = neon_ls_element_type[op].spacing; |
3815 |
if (size == 3 && (interleave | spacing) != 1) |
3816 |
return 1; |
3817 |
load_reg_var(s, addr, rn); |
3818 |
stride = (1 << size) * interleave;
|
3819 |
for (reg = 0; reg < nregs; reg++) { |
3820 |
if (interleave > 2 || (interleave == 2 && nregs == 2)) { |
3821 |
load_reg_var(s, addr, rn); |
3822 |
tcg_gen_addi_i32(addr, addr, (1 << size) * reg);
|
3823 |
} else if (interleave == 2 && nregs == 4 && reg == 2) { |
3824 |
load_reg_var(s, addr, rn); |
3825 |
tcg_gen_addi_i32(addr, addr, 1 << size);
|
3826 |
} |
3827 |
if (size == 3) { |
3828 |
if (load) {
|
3829 |
tmp64 = gen_ld64(addr, IS_USER(s)); |
3830 |
neon_store_reg64(tmp64, rd); |
3831 |
tcg_temp_free_i64(tmp64); |
3832 |
} else {
|
3833 |
tmp64 = tcg_temp_new_i64(); |
3834 |
neon_load_reg64(tmp64, rd); |
3835 |
gen_st64(tmp64, addr, IS_USER(s)); |
3836 |
} |
3837 |
tcg_gen_addi_i32(addr, addr, stride); |
3838 |
} else {
|
3839 |
for (pass = 0; pass < 2; pass++) { |
3840 |
if (size == 2) { |
3841 |
if (load) {
|
3842 |
tmp = gen_ld32(addr, IS_USER(s)); |
3843 |
neon_store_reg(rd, pass, tmp); |
3844 |
} else {
|
3845 |
tmp = neon_load_reg(rd, pass); |
3846 |
gen_st32(tmp, addr, IS_USER(s)); |
3847 |
} |
3848 |
tcg_gen_addi_i32(addr, addr, stride); |
3849 |
} else if (size == 1) { |
3850 |
if (load) {
|
3851 |
tmp = gen_ld16u(addr, IS_USER(s)); |
3852 |
tcg_gen_addi_i32(addr, addr, stride); |
3853 |
tmp2 = gen_ld16u(addr, IS_USER(s)); |
3854 |
tcg_gen_addi_i32(addr, addr, stride); |
3855 |
gen_bfi(tmp, tmp, tmp2, 16, 0xffff); |
3856 |
dead_tmp(tmp2); |
3857 |
neon_store_reg(rd, pass, tmp); |
3858 |
} else {
|
3859 |
tmp = neon_load_reg(rd, pass); |
3860 |
tmp2 = new_tmp(); |
3861 |
tcg_gen_shri_i32(tmp2, tmp, 16);
|
3862 |
gen_st16(tmp, addr, IS_USER(s)); |
3863 |
tcg_gen_addi_i32(addr, addr, stride); |
3864 |
gen_st16(tmp2, addr, IS_USER(s)); |
3865 |
tcg_gen_addi_i32(addr, addr, stride); |
3866 |
} |
3867 |
} else /* size == 0 */ { |
3868 |
if (load) {
|
3869 |
TCGV_UNUSED(tmp2); |
3870 |
for (n = 0; n < 4; n++) { |
3871 |
tmp = gen_ld8u(addr, IS_USER(s)); |
3872 |
tcg_gen_addi_i32(addr, addr, stride); |
3873 |
if (n == 0) { |
3874 |
tmp2 = tmp; |
3875 |
} else {
|
3876 |
gen_bfi(tmp2, tmp2, tmp, n * 8, 0xff); |
3877 |
dead_tmp(tmp); |
3878 |
} |
3879 |
} |
3880 |
neon_store_reg(rd, pass, tmp2); |
3881 |
} else {
|
3882 |
tmp2 = neon_load_reg(rd, pass); |
3883 |
for (n = 0; n < 4; n++) { |
3884 |
tmp = new_tmp(); |
3885 |
if (n == 0) { |
3886 |
tcg_gen_mov_i32(tmp, tmp2); |
3887 |
} else {
|
3888 |
tcg_gen_shri_i32(tmp, tmp2, n * 8);
|
3889 |
} |
3890 |
gen_st8(tmp, addr, IS_USER(s)); |
3891 |
tcg_gen_addi_i32(addr, addr, stride); |
3892 |
} |
3893 |
dead_tmp(tmp2); |
3894 |
} |
3895 |
} |
3896 |
} |
3897 |
} |
3898 |
rd += spacing; |
3899 |
} |
3900 |
stride = nregs * 8;
|
3901 |
} else {
|
3902 |
size = (insn >> 10) & 3; |
3903 |
if (size == 3) { |
3904 |
/* Load single element to all lanes. */
|
3905 |
if (!load)
|
3906 |
return 1; |
3907 |
size = (insn >> 6) & 3; |
3908 |
nregs = ((insn >> 8) & 3) + 1; |
3909 |
stride = (insn & (1 << 5)) ? 2 : 1; |
3910 |
load_reg_var(s, addr, rn); |
3911 |
for (reg = 0; reg < nregs; reg++) { |
3912 |
switch (size) {
|
3913 |
case 0: |
3914 |
tmp = gen_ld8u(addr, IS_USER(s)); |
3915 |
gen_neon_dup_u8(tmp, 0);
|
3916 |
break;
|
3917 |
case 1: |
3918 |
tmp = gen_ld16u(addr, IS_USER(s)); |
3919 |
gen_neon_dup_low16(tmp); |
3920 |
break;
|
3921 |
case 2: |
3922 |
tmp = gen_ld32(addr, IS_USER(s)); |
3923 |
break;
|
3924 |
case 3: |
3925 |
return 1; |
3926 |
default: /* Avoid compiler warnings. */ |
3927 |
abort(); |
3928 |
} |
3929 |
tcg_gen_addi_i32(addr, addr, 1 << size);
|
3930 |
tmp2 = new_tmp(); |
3931 |
tcg_gen_mov_i32(tmp2, tmp); |
3932 |
neon_store_reg(rd, 0, tmp2);
|
3933 |
neon_store_reg(rd, 1, tmp);
|
3934 |
rd += stride; |
3935 |
} |
3936 |
stride = (1 << size) * nregs;
|
3937 |
} else {
|
3938 |
/* Single element. */
|
3939 |
pass = (insn >> 7) & 1; |
3940 |
switch (size) {
|
3941 |
case 0: |
3942 |
shift = ((insn >> 5) & 3) * 8; |
3943 |
stride = 1;
|
3944 |
break;
|
3945 |
case 1: |
3946 |
shift = ((insn >> 6) & 1) * 16; |
3947 |
stride = (insn & (1 << 5)) ? 2 : 1; |
3948 |
break;
|
3949 |
case 2: |
3950 |
shift = 0;
|
3951 |
stride = (insn & (1 << 6)) ? 2 : 1; |
3952 |
break;
|
3953 |
default:
|
3954 |
abort(); |
3955 |
} |
3956 |
nregs = ((insn >> 8) & 3) + 1; |
3957 |
load_reg_var(s, addr, rn); |
3958 |
for (reg = 0; reg < nregs; reg++) { |
3959 |
if (load) {
|
3960 |
switch (size) {
|
3961 |
case 0: |
3962 |
tmp = gen_ld8u(addr, IS_USER(s)); |
3963 |
break;
|
3964 |
case 1: |
3965 |
tmp = gen_ld16u(addr, IS_USER(s)); |
3966 |
break;
|
3967 |
case 2: |
3968 |
tmp = gen_ld32(addr, IS_USER(s)); |
3969 |
break;
|
3970 |
default: /* Avoid compiler warnings. */ |
3971 |
abort(); |
3972 |
} |
3973 |
if (size != 2) { |
3974 |
tmp2 = neon_load_reg(rd, pass); |
3975 |
gen_bfi(tmp, tmp2, tmp, shift, size ? 0xffff : 0xff); |
3976 |
dead_tmp(tmp2); |
3977 |
} |
3978 |
neon_store_reg(rd, pass, tmp); |
3979 |
} else { /* Store */ |
3980 |
tmp = neon_load_reg(rd, pass); |
3981 |
if (shift)
|
3982 |
tcg_gen_shri_i32(tmp, tmp, shift); |
3983 |
switch (size) {
|
3984 |
case 0: |
3985 |
gen_st8(tmp, addr, IS_USER(s)); |
3986 |
break;
|
3987 |
case 1: |
3988 |
gen_st16(tmp, addr, IS_USER(s)); |
3989 |
break;
|
3990 |
case 2: |
3991 |
gen_st32(tmp, addr, IS_USER(s)); |
3992 |
break;
|
3993 |
} |
3994 |
} |
3995 |
rd += stride; |
3996 |
tcg_gen_addi_i32(addr, addr, 1 << size);
|
3997 |
} |
3998 |
stride = nregs * (1 << size);
|
3999 |
} |
4000 |
} |
4001 |
dead_tmp(addr); |
4002 |
if (rm != 15) { |
4003 |
TCGv base; |
4004 |
|
4005 |
base = load_reg(s, rn); |
4006 |
if (rm == 13) { |
4007 |
tcg_gen_addi_i32(base, base, stride); |
4008 |
} else {
|
4009 |
TCGv index; |
4010 |
index = load_reg(s, rm); |
4011 |
tcg_gen_add_i32(base, base, index); |
4012 |
dead_tmp(index); |
4013 |
} |
4014 |
store_reg(s, rn, base); |
4015 |
} |
4016 |
return 0; |
4017 |
} |
4018 |
|
4019 |
/* Bitwise select. dest = c ? t : f. Clobbers T and F. */
|
4020 |
static void gen_neon_bsl(TCGv dest, TCGv t, TCGv f, TCGv c) |
4021 |
{ |
4022 |
tcg_gen_and_i32(t, t, c); |
4023 |
tcg_gen_andc_i32(f, f, c); |
4024 |
tcg_gen_or_i32(dest, t, f); |
4025 |
} |
4026 |
|
4027 |
static inline void gen_neon_narrow(int size, TCGv dest, TCGv_i64 src) |
4028 |
{ |
4029 |
switch (size) {
|
4030 |
case 0: gen_helper_neon_narrow_u8(dest, src); break; |
4031 |
case 1: gen_helper_neon_narrow_u16(dest, src); break; |
4032 |
case 2: tcg_gen_trunc_i64_i32(dest, src); break; |
4033 |
default: abort();
|
4034 |
} |
4035 |
} |
4036 |
|
4037 |
static inline void gen_neon_narrow_sats(int size, TCGv dest, TCGv_i64 src) |
4038 |
{ |
4039 |
switch (size) {
|
4040 |
case 0: gen_helper_neon_narrow_sat_s8(dest, cpu_env, src); break; |
4041 |
case 1: gen_helper_neon_narrow_sat_s16(dest, cpu_env, src); break; |
4042 |
case 2: gen_helper_neon_narrow_sat_s32(dest, cpu_env, src); break; |
4043 |
default: abort();
|
4044 |
} |
4045 |
} |
4046 |
|
4047 |
static inline void gen_neon_narrow_satu(int size, TCGv dest, TCGv_i64 src) |
4048 |
{ |
4049 |
switch (size) {
|
4050 |
case 0: gen_helper_neon_narrow_sat_u8(dest, cpu_env, src); break; |
4051 |
case 1: gen_helper_neon_narrow_sat_u16(dest, cpu_env, src); break; |
4052 |
case 2: gen_helper_neon_narrow_sat_u32(dest, cpu_env, src); break; |
4053 |
default: abort();
|
4054 |
} |
4055 |
} |
4056 |
|
4057 |
static inline void gen_neon_shift_narrow(int size, TCGv var, TCGv shift, |
4058 |
int q, int u) |
4059 |
{ |
4060 |
if (q) {
|
4061 |
if (u) {
|
4062 |
switch (size) {
|
4063 |
case 1: gen_helper_neon_rshl_u16(var, var, shift); break; |
4064 |
case 2: gen_helper_neon_rshl_u32(var, var, shift); break; |
4065 |
default: abort();
|
4066 |
} |
4067 |
} else {
|
4068 |
switch (size) {
|
4069 |
case 1: gen_helper_neon_rshl_s16(var, var, shift); break; |
4070 |
case 2: gen_helper_neon_rshl_s32(var, var, shift); break; |
4071 |
default: abort();
|
4072 |
} |
4073 |
} |
4074 |
} else {
|
4075 |
if (u) {
|
4076 |
switch (size) {
|
4077 |
case 1: gen_helper_neon_rshl_u16(var, var, shift); break; |
4078 |
case 2: gen_helper_neon_rshl_u32(var, var, shift); break; |
4079 |
default: abort();
|
4080 |
} |
4081 |
} else {
|
4082 |
switch (size) {
|
4083 |
case 1: gen_helper_neon_shl_s16(var, var, shift); break; |
4084 |
case 2: gen_helper_neon_shl_s32(var, var, shift); break; |
4085 |
default: abort();
|
4086 |
} |
4087 |
} |
4088 |
} |
4089 |
} |
4090 |
|
4091 |
static inline void gen_neon_widen(TCGv_i64 dest, TCGv src, int size, int u) |
4092 |
{ |
4093 |
if (u) {
|
4094 |
switch (size) {
|
4095 |
case 0: gen_helper_neon_widen_u8(dest, src); break; |
4096 |
case 1: gen_helper_neon_widen_u16(dest, src); break; |
4097 |
case 2: tcg_gen_extu_i32_i64(dest, src); break; |
4098 |
default: abort();
|
4099 |
} |
4100 |
} else {
|
4101 |
switch (size) {
|
4102 |
case 0: gen_helper_neon_widen_s8(dest, src); break; |
4103 |
case 1: gen_helper_neon_widen_s16(dest, src); break; |
4104 |
case 2: tcg_gen_ext_i32_i64(dest, src); break; |
4105 |
default: abort();
|
4106 |
} |
4107 |
} |
4108 |
dead_tmp(src); |
4109 |
} |
4110 |
|
4111 |
static inline void gen_neon_addl(int size) |
4112 |
{ |
4113 |
switch (size) {
|
4114 |
case 0: gen_helper_neon_addl_u16(CPU_V001); break; |
4115 |
case 1: gen_helper_neon_addl_u32(CPU_V001); break; |
4116 |
case 2: tcg_gen_add_i64(CPU_V001); break; |
4117 |
default: abort();
|
4118 |
} |
4119 |
} |
4120 |
|
4121 |
static inline void gen_neon_subl(int size) |
4122 |
{ |
4123 |
switch (size) {
|
4124 |
case 0: gen_helper_neon_subl_u16(CPU_V001); break; |
4125 |
case 1: gen_helper_neon_subl_u32(CPU_V001); break; |
4126 |
case 2: tcg_gen_sub_i64(CPU_V001); break; |
4127 |
default: abort();
|
4128 |
} |
4129 |
} |
4130 |
|
4131 |
static inline void gen_neon_negl(TCGv_i64 var, int size) |
4132 |
{ |
4133 |
switch (size) {
|
4134 |
case 0: gen_helper_neon_negl_u16(var, var); break; |
4135 |
case 1: gen_helper_neon_negl_u32(var, var); break; |
4136 |
case 2: gen_helper_neon_negl_u64(var, var); break; |
4137 |
default: abort();
|
4138 |
} |
4139 |
} |
4140 |
|
4141 |
static inline void gen_neon_addl_saturate(TCGv_i64 op0, TCGv_i64 op1, int size) |
4142 |
{ |
4143 |
switch (size) {
|
4144 |
case 1: gen_helper_neon_addl_saturate_s32(op0, cpu_env, op0, op1); break; |
4145 |
case 2: gen_helper_neon_addl_saturate_s64(op0, cpu_env, op0, op1); break; |
4146 |
default: abort();
|
4147 |
} |
4148 |
} |
4149 |
|
4150 |
static inline void gen_neon_mull(TCGv_i64 dest, TCGv a, TCGv b, int size, int u) |
4151 |
{ |
4152 |
TCGv_i64 tmp; |
4153 |
|
4154 |
switch ((size << 1) | u) { |
4155 |
case 0: gen_helper_neon_mull_s8(dest, a, b); break; |
4156 |
case 1: gen_helper_neon_mull_u8(dest, a, b); break; |
4157 |
case 2: gen_helper_neon_mull_s16(dest, a, b); break; |
4158 |
case 3: gen_helper_neon_mull_u16(dest, a, b); break; |
4159 |
case 4: |
4160 |
tmp = gen_muls_i64_i32(a, b); |
4161 |
tcg_gen_mov_i64(dest, tmp); |
4162 |
break;
|
4163 |
case 5: |
4164 |
tmp = gen_mulu_i64_i32(a, b); |
4165 |
tcg_gen_mov_i64(dest, tmp); |
4166 |
break;
|
4167 |
default: abort();
|
4168 |
} |
4169 |
} |
4170 |
|
4171 |
/* Translate a NEON data processing instruction. Return nonzero if the
|
4172 |
instruction is invalid.
|
4173 |
We process data in a mixture of 32-bit and 64-bit chunks.
|
4174 |
Mostly we use 32-bit chunks so we can use normal scalar instructions. */
|
4175 |
|
4176 |
static int disas_neon_data_insn(CPUState * env, DisasContext *s, uint32_t insn) |
4177 |
{ |
4178 |
int op;
|
4179 |
int q;
|
4180 |
int rd, rn, rm;
|
4181 |
int size;
|
4182 |
int shift;
|
4183 |
int pass;
|
4184 |
int count;
|
4185 |
int pairwise;
|
4186 |
int u;
|
4187 |
int n;
|
4188 |
uint32_t imm, mask; |
4189 |
TCGv tmp, tmp2, tmp3, tmp4, tmp5; |
4190 |
TCGv_i64 tmp64; |
4191 |
|
4192 |
if (!vfp_enabled(env))
|
4193 |
return 1; |
4194 |
q = (insn & (1 << 6)) != 0; |
4195 |
u = (insn >> 24) & 1; |
4196 |
VFP_DREG_D(rd, insn); |
4197 |
VFP_DREG_N(rn, insn); |
4198 |
VFP_DREG_M(rm, insn); |
4199 |
size = (insn >> 20) & 3; |
4200 |
if ((insn & (1 << 23)) == 0) { |
4201 |
/* Three register same length. */
|
4202 |
op = ((insn >> 7) & 0x1e) | ((insn >> 4) & 1); |
4203 |
if (size == 3 && (op == 1 || op == 5 || op == 8 || op == 9 |
4204 |
|| op == 10 || op == 11 || op == 16)) { |
4205 |
/* 64-bit element instructions. */
|
4206 |
for (pass = 0; pass < (q ? 2 : 1); pass++) { |
4207 |
neon_load_reg64(cpu_V0, rn + pass); |
4208 |
neon_load_reg64(cpu_V1, rm + pass); |
4209 |
switch (op) {
|
4210 |
case 1: /* VQADD */ |
4211 |
if (u) {
|
4212 |
gen_helper_neon_add_saturate_u64(CPU_V001); |
4213 |
} else {
|
4214 |
gen_helper_neon_add_saturate_s64(CPU_V001); |
4215 |
} |
4216 |
break;
|
4217 |
case 5: /* VQSUB */ |
4218 |
if (u) {
|
4219 |
gen_helper_neon_sub_saturate_u64(CPU_V001); |
4220 |
} else {
|
4221 |
gen_helper_neon_sub_saturate_s64(CPU_V001); |
4222 |
} |
4223 |
break;
|
4224 |
case 8: /* VSHL */ |
4225 |
if (u) {
|
4226 |
gen_helper_neon_shl_u64(cpu_V0, cpu_V1, cpu_V0); |
4227 |
} else {
|
4228 |
gen_helper_neon_shl_s64(cpu_V0, cpu_V1, cpu_V0); |
4229 |
} |
4230 |
break;
|
4231 |
case 9: /* VQSHL */ |
4232 |
if (u) {
|
4233 |
gen_helper_neon_qshl_u64(cpu_V0, cpu_env, |
4234 |
cpu_V0, cpu_V0); |
4235 |
} else {
|
4236 |
gen_helper_neon_qshl_s64(cpu_V1, cpu_env, |
4237 |
cpu_V1, cpu_V0); |
4238 |
} |
4239 |
break;
|
4240 |
case 10: /* VRSHL */ |
4241 |
if (u) {
|
4242 |
gen_helper_neon_rshl_u64(cpu_V0, cpu_V1, cpu_V0); |
4243 |
} else {
|
4244 |
gen_helper_neon_rshl_s64(cpu_V0, cpu_V1, cpu_V0); |
4245 |
} |
4246 |
break;
|
4247 |
case 11: /* VQRSHL */ |
4248 |
if (u) {
|
4249 |
gen_helper_neon_qrshl_u64(cpu_V0, cpu_env, |
4250 |
cpu_V1, cpu_V0); |
4251 |
} else {
|
4252 |
gen_helper_neon_qrshl_s64(cpu_V0, cpu_env, |
4253 |
cpu_V1, cpu_V0); |
4254 |
} |
4255 |
break;
|
4256 |
case 16: |
4257 |
if (u) {
|
4258 |
tcg_gen_sub_i64(CPU_V001); |
4259 |
} else {
|
4260 |
tcg_gen_add_i64(CPU_V001); |
4261 |
} |
4262 |
break;
|
4263 |
default:
|
4264 |
abort(); |
4265 |
} |
4266 |
neon_store_reg64(cpu_V0, rd + pass); |
4267 |
} |
4268 |
return 0; |
4269 |
} |
4270 |
switch (op) {
|
4271 |
case 8: /* VSHL */ |
4272 |
case 9: /* VQSHL */ |
4273 |
case 10: /* VRSHL */ |
4274 |
case 11: /* VQRSHL */ |
4275 |
{ |
4276 |
int rtmp;
|
4277 |
/* Shift instruction operands are reversed. */
|
4278 |
rtmp = rn; |
4279 |
rn = rm; |
4280 |
rm = rtmp; |
4281 |
pairwise = 0;
|
4282 |
} |
4283 |
break;
|
4284 |
case 20: /* VPMAX */ |
4285 |
case 21: /* VPMIN */ |
4286 |
case 23: /* VPADD */ |
4287 |
pairwise = 1;
|
4288 |
break;
|
4289 |
case 26: /* VPADD (float) */ |
4290 |
pairwise = (u && size < 2);
|
4291 |
break;
|
4292 |
case 30: /* VPMIN/VPMAX (float) */ |
4293 |
pairwise = u; |
4294 |
break;
|
4295 |
default:
|
4296 |
pairwise = 0;
|
4297 |
break;
|
4298 |
} |
4299 |
|
4300 |
for (pass = 0; pass < (q ? 4 : 2); pass++) { |
4301 |
|
4302 |
if (pairwise) {
|
4303 |
/* Pairwise. */
|
4304 |
if (q)
|
4305 |
n = (pass & 1) * 2; |
4306 |
else
|
4307 |
n = 0;
|
4308 |
if (pass < q + 1) { |
4309 |
tmp = neon_load_reg(rn, n); |
4310 |
tmp2 = neon_load_reg(rn, n + 1);
|
4311 |
} else {
|
4312 |
tmp = neon_load_reg(rm, n); |
4313 |
tmp2 = neon_load_reg(rm, n + 1);
|
4314 |
} |
4315 |
} else {
|
4316 |
/* Elementwise. */
|
4317 |
tmp = neon_load_reg(rn, pass); |
4318 |
tmp2 = neon_load_reg(rm, pass); |
4319 |
} |
4320 |
switch (op) {
|
4321 |
case 0: /* VHADD */ |
4322 |
GEN_NEON_INTEGER_OP(hadd); |
4323 |
break;
|
4324 |
case 1: /* VQADD */ |
4325 |
GEN_NEON_INTEGER_OP_ENV(qadd); |
4326 |
break;
|
4327 |
case 2: /* VRHADD */ |
4328 |
GEN_NEON_INTEGER_OP(rhadd); |
4329 |
break;
|
4330 |
case 3: /* Logic ops. */ |
4331 |
switch ((u << 2) | size) { |
4332 |
case 0: /* VAND */ |
4333 |
tcg_gen_and_i32(tmp, tmp, tmp2); |
4334 |
break;
|
4335 |
case 1: /* BIC */ |
4336 |
tcg_gen_andc_i32(tmp, tmp, tmp2); |
4337 |
break;
|
4338 |
case 2: /* VORR */ |
4339 |
tcg_gen_or_i32(tmp, tmp, tmp2); |
4340 |
break;
|
4341 |
case 3: /* VORN */ |
4342 |
tcg_gen_orc_i32(tmp, tmp, tmp2); |
4343 |
break;
|
4344 |
case 4: /* VEOR */ |
4345 |
tcg_gen_xor_i32(tmp, tmp, tmp2); |
4346 |
break;
|
4347 |
case 5: /* VBSL */ |
4348 |
tmp3 = neon_load_reg(rd, pass); |
4349 |
gen_neon_bsl(tmp, tmp, tmp2, tmp3); |
4350 |
dead_tmp(tmp3); |
4351 |
break;
|
4352 |
case 6: /* VBIT */ |
4353 |
tmp3 = neon_load_reg(rd, pass); |
4354 |
gen_neon_bsl(tmp, tmp, tmp3, tmp2); |
4355 |
dead_tmp(tmp3); |
4356 |
break;
|
4357 |
case 7: /* VBIF */ |
4358 |
tmp3 = neon_load_reg(rd, pass); |
4359 |
gen_neon_bsl(tmp, tmp3, tmp, tmp2); |
4360 |
dead_tmp(tmp3); |
4361 |
break;
|
4362 |
} |
4363 |
break;
|
4364 |
case 4: /* VHSUB */ |
4365 |
GEN_NEON_INTEGER_OP(hsub); |
4366 |
break;
|
4367 |
case 5: /* VQSUB */ |
4368 |
GEN_NEON_INTEGER_OP_ENV(qsub); |
4369 |
break;
|
4370 |
case 6: /* VCGT */ |
4371 |
GEN_NEON_INTEGER_OP(cgt); |
4372 |
break;
|
4373 |
case 7: /* VCGE */ |
4374 |
GEN_NEON_INTEGER_OP(cge); |
4375 |
break;
|
4376 |
case 8: /* VSHL */ |
4377 |
GEN_NEON_INTEGER_OP(shl); |
4378 |
break;
|
4379 |
case 9: /* VQSHL */ |
4380 |
GEN_NEON_INTEGER_OP_ENV(qshl); |
4381 |
break;
|
4382 |
case 10: /* VRSHL */ |
4383 |
GEN_NEON_INTEGER_OP(rshl); |
4384 |
break;
|
4385 |
case 11: /* VQRSHL */ |
4386 |
GEN_NEON_INTEGER_OP_ENV(qrshl); |
4387 |
break;
|
4388 |
case 12: /* VMAX */ |
4389 |
GEN_NEON_INTEGER_OP(max); |
4390 |
break;
|
4391 |
case 13: /* VMIN */ |
4392 |
GEN_NEON_INTEGER_OP(min); |
4393 |
break;
|
4394 |
case 14: /* VABD */ |
4395 |
GEN_NEON_INTEGER_OP(abd); |
4396 |
break;
|
4397 |
case 15: /* VABA */ |
4398 |
GEN_NEON_INTEGER_OP(abd); |
4399 |
dead_tmp(tmp2); |
4400 |
tmp2 = neon_load_reg(rd, pass); |
4401 |
gen_neon_add(size, tmp, tmp2); |
4402 |
break;
|
4403 |
case 16: |
4404 |
if (!u) { /* VADD */ |
4405 |
if (gen_neon_add(size, tmp, tmp2))
|
4406 |
return 1; |
4407 |
} else { /* VSUB */ |
4408 |
switch (size) {
|
4409 |
case 0: gen_helper_neon_sub_u8(tmp, tmp, tmp2); break; |
4410 |
case 1: gen_helper_neon_sub_u16(tmp, tmp, tmp2); break; |
4411 |
case 2: tcg_gen_sub_i32(tmp, tmp, tmp2); break; |
4412 |
default: return 1; |
4413 |
} |
4414 |
} |
4415 |
break;
|
4416 |
case 17: |
4417 |
if (!u) { /* VTST */ |
4418 |
switch (size) {
|
4419 |
case 0: gen_helper_neon_tst_u8(tmp, tmp, tmp2); break; |
4420 |
case 1: gen_helper_neon_tst_u16(tmp, tmp, tmp2); break; |
4421 |
case 2: gen_helper_neon_tst_u32(tmp, tmp, tmp2); break; |
4422 |
default: return 1; |
4423 |
} |
4424 |
} else { /* VCEQ */ |
4425 |
switch (size) {
|
4426 |
case 0: gen_helper_neon_ceq_u8(tmp, tmp, tmp2); break; |
4427 |
case 1: gen_helper_neon_ceq_u16(tmp, tmp, tmp2); break; |
4428 |
case 2: gen_helper_neon_ceq_u32(tmp, tmp, tmp2); break; |
4429 |
default: return 1; |
4430 |
} |
4431 |
} |
4432 |
break;
|
4433 |
case 18: /* Multiply. */ |
4434 |
switch (size) {
|
4435 |
case 0: gen_helper_neon_mul_u8(tmp, tmp, tmp2); break; |
4436 |
case 1: gen_helper_neon_mul_u16(tmp, tmp, tmp2); break; |
4437 |
case 2: tcg_gen_mul_i32(tmp, tmp, tmp2); break; |
4438 |
default: return 1; |
4439 |
} |
4440 |
dead_tmp(tmp2); |
4441 |
tmp2 = neon_load_reg(rd, pass); |
4442 |
if (u) { /* VMLS */ |
4443 |
gen_neon_rsb(size, tmp, tmp2); |
4444 |
} else { /* VMLA */ |
4445 |
gen_neon_add(size, tmp, tmp2); |
4446 |
} |
4447 |
break;
|
4448 |
case 19: /* VMUL */ |
4449 |
if (u) { /* polynomial */ |
4450 |
gen_helper_neon_mul_p8(tmp, tmp, tmp2); |
4451 |
} else { /* Integer */ |
4452 |
switch (size) {
|
4453 |
case 0: gen_helper_neon_mul_u8(tmp, tmp, tmp2); break; |
4454 |
case 1: gen_helper_neon_mul_u16(tmp, tmp, tmp2); break; |
4455 |
case 2: tcg_gen_mul_i32(tmp, tmp, tmp2); break; |
4456 |
default: return 1; |
4457 |
} |
4458 |
} |
4459 |
break;
|
4460 |
case 20: /* VPMAX */ |
4461 |
GEN_NEON_INTEGER_OP(pmax); |
4462 |
break;
|
4463 |
case 21: /* VPMIN */ |
4464 |
GEN_NEON_INTEGER_OP(pmin); |
4465 |
break;
|
4466 |
case 22: /* Hultiply high. */ |
4467 |
if (!u) { /* VQDMULH */ |
4468 |
switch (size) {
|
4469 |
case 1: gen_helper_neon_qdmulh_s16(tmp, cpu_env, tmp, tmp2); break; |
4470 |
case 2: gen_helper_neon_qdmulh_s32(tmp, cpu_env, tmp, tmp2); break; |
4471 |
default: return 1; |
4472 |
} |
4473 |
} else { /* VQRDHMUL */ |
4474 |
switch (size) {
|
4475 |
case 1: gen_helper_neon_qrdmulh_s16(tmp, cpu_env, tmp, tmp2); break; |
4476 |
case 2: gen_helper_neon_qrdmulh_s32(tmp, cpu_env, tmp, tmp2); break; |
4477 |
default: return 1; |
4478 |
} |
4479 |
} |
4480 |
break;
|
4481 |
case 23: /* VPADD */ |
4482 |
if (u)
|
4483 |
return 1; |
4484 |
switch (size) {
|
4485 |
case 0: gen_helper_neon_padd_u8(tmp, tmp, tmp2); break; |
4486 |
case 1: gen_helper_neon_padd_u16(tmp, tmp, tmp2); break; |
4487 |
case 2: tcg_gen_add_i32(tmp, tmp, tmp2); break; |
4488 |
default: return 1; |
4489 |
} |
4490 |
break;
|
4491 |
case 26: /* Floating point arithnetic. */ |
4492 |
switch ((u << 2) | size) { |
4493 |
case 0: /* VADD */ |
4494 |
gen_helper_neon_add_f32(tmp, tmp, tmp2); |
4495 |
break;
|
4496 |
case 2: /* VSUB */ |
4497 |
gen_helper_neon_sub_f32(tmp, tmp, tmp2); |
4498 |
break;
|
4499 |
case 4: /* VPADD */ |
4500 |
gen_helper_neon_add_f32(tmp, tmp, tmp2); |
4501 |
break;
|
4502 |
case 6: /* VABD */ |
4503 |
gen_helper_neon_abd_f32(tmp, tmp, tmp2); |
4504 |
break;
|
4505 |
default:
|
4506 |
return 1; |
4507 |
} |
4508 |
break;
|
4509 |
case 27: /* Float multiply. */ |
4510 |
gen_helper_neon_mul_f32(tmp, tmp, tmp2); |
4511 |
if (!u) {
|
4512 |
dead_tmp(tmp2); |
4513 |
tmp2 = neon_load_reg(rd, pass); |
4514 |
if (size == 0) { |
4515 |
gen_helper_neon_add_f32(tmp, tmp, tmp2); |
4516 |
} else {
|
4517 |
gen_helper_neon_sub_f32(tmp, tmp2, tmp); |
4518 |
} |
4519 |
} |
4520 |
break;
|
4521 |
case 28: /* Float compare. */ |
4522 |
if (!u) {
|
4523 |
gen_helper_neon_ceq_f32(tmp, tmp, tmp2); |
4524 |
} else {
|
4525 |
if (size == 0) |
4526 |
gen_helper_neon_cge_f32(tmp, tmp, tmp2); |
4527 |
else
|
4528 |
gen_helper_neon_cgt_f32(tmp, tmp, tmp2); |
4529 |
} |
4530 |
break;
|
4531 |
case 29: /* Float compare absolute. */ |
4532 |
if (!u)
|
4533 |
return 1; |
4534 |
if (size == 0) |
4535 |
gen_helper_neon_acge_f32(tmp, tmp, tmp2); |
4536 |
else
|
4537 |
gen_helper_neon_acgt_f32(tmp, tmp, tmp2); |
4538 |
break;
|
4539 |
case 30: /* Float min/max. */ |
4540 |
if (size == 0) |
4541 |
gen_helper_neon_max_f32(tmp, tmp, tmp2); |
4542 |
else
|
4543 |
gen_helper_neon_min_f32(tmp, tmp, tmp2); |
4544 |
break;
|
4545 |
case 31: |
4546 |
if (size == 0) |
4547 |
gen_helper_recps_f32(tmp, tmp, tmp2, cpu_env); |
4548 |
else
|
4549 |
gen_helper_rsqrts_f32(tmp, tmp, tmp2, cpu_env); |
4550 |
break;
|
4551 |
default:
|
4552 |
abort(); |
4553 |
} |
4554 |
dead_tmp(tmp2); |
4555 |
|
4556 |
/* Save the result. For elementwise operations we can put it
|
4557 |
straight into the destination register. For pairwise operations
|
4558 |
we have to be careful to avoid clobbering the source operands. */
|
4559 |
if (pairwise && rd == rm) {
|
4560 |
neon_store_scratch(pass, tmp); |
4561 |
} else {
|
4562 |
neon_store_reg(rd, pass, tmp); |
4563 |
} |
4564 |
|
4565 |
} /* for pass */
|
4566 |
if (pairwise && rd == rm) {
|
4567 |
for (pass = 0; pass < (q ? 4 : 2); pass++) { |
4568 |
tmp = neon_load_scratch(pass); |
4569 |
neon_store_reg(rd, pass, tmp); |
4570 |
} |
4571 |
} |
4572 |
/* End of 3 register same size operations. */
|
4573 |
} else if (insn & (1 << 4)) { |
4574 |
if ((insn & 0x00380080) != 0) { |
4575 |
/* Two registers and shift. */
|
4576 |
op = (insn >> 8) & 0xf; |
4577 |
if (insn & (1 << 7)) { |
4578 |
/* 64-bit shift. */
|
4579 |
size = 3;
|
4580 |
} else {
|
4581 |
size = 2;
|
4582 |
while ((insn & (1 << (size + 19))) == 0) |
4583 |
size--; |
4584 |
} |
4585 |
shift = (insn >> 16) & ((1 << (3 + size)) - 1); |
4586 |
/* To avoid excessive dumplication of ops we implement shift
|
4587 |
by immediate using the variable shift operations. */
|
4588 |
if (op < 8) { |
4589 |
/* Shift by immediate:
|
4590 |
VSHR, VSRA, VRSHR, VRSRA, VSRI, VSHL, VQSHL, VQSHLU. */
|
4591 |
/* Right shifts are encoded as N - shift, where N is the
|
4592 |
element size in bits. */
|
4593 |
if (op <= 4) |
4594 |
shift = shift - (1 << (size + 3)); |
4595 |
if (size == 3) { |
4596 |
count = q + 1;
|
4597 |
} else {
|
4598 |
count = q ? 4: 2; |
4599 |
} |
4600 |
switch (size) {
|
4601 |
case 0: |
4602 |
imm = (uint8_t) shift; |
4603 |
imm |= imm << 8;
|
4604 |
imm |= imm << 16;
|
4605 |
break;
|
4606 |
case 1: |
4607 |
imm = (uint16_t) shift; |
4608 |
imm |= imm << 16;
|
4609 |
break;
|
4610 |
case 2: |
4611 |
case 3: |
4612 |
imm = shift; |
4613 |
break;
|
4614 |
default:
|
4615 |
abort(); |
4616 |
} |
4617 |
|
4618 |
for (pass = 0; pass < count; pass++) { |
4619 |
if (size == 3) { |
4620 |
neon_load_reg64(cpu_V0, rm + pass); |
4621 |
tcg_gen_movi_i64(cpu_V1, imm); |
4622 |
switch (op) {
|
4623 |
case 0: /* VSHR */ |
4624 |
case 1: /* VSRA */ |
4625 |
if (u)
|
4626 |
gen_helper_neon_shl_u64(cpu_V0, cpu_V0, cpu_V1); |
4627 |
else
|
4628 |
gen_helper_neon_shl_s64(cpu_V0, cpu_V0, cpu_V1); |
4629 |
break;
|
4630 |
case 2: /* VRSHR */ |
4631 |
case 3: /* VRSRA */ |
4632 |
if (u)
|
4633 |
gen_helper_neon_rshl_u64(cpu_V0, cpu_V0, cpu_V1); |
4634 |
else
|
4635 |
gen_helper_neon_rshl_s64(cpu_V0, cpu_V0, cpu_V1); |
4636 |
break;
|
4637 |
case 4: /* VSRI */ |
4638 |
if (!u)
|
4639 |
return 1; |
4640 |
gen_helper_neon_shl_u64(cpu_V0, cpu_V0, cpu_V1); |
4641 |
break;
|
4642 |
case 5: /* VSHL, VSLI */ |
4643 |
gen_helper_neon_shl_u64(cpu_V0, cpu_V0, cpu_V1); |
4644 |
break;
|
4645 |
case 6: /* VQSHL */ |
4646 |
if (u)
|
4647 |
gen_helper_neon_qshl_u64(cpu_V0, cpu_env, cpu_V0, cpu_V1); |
4648 |
else
|
4649 |
gen_helper_neon_qshl_s64(cpu_V0, cpu_env, cpu_V0, cpu_V1); |
4650 |
break;
|
4651 |
case 7: /* VQSHLU */ |
4652 |
gen_helper_neon_qshl_u64(cpu_V0, cpu_env, cpu_V0, cpu_V1); |
4653 |
break;
|
4654 |
} |
4655 |
if (op == 1 || op == 3) { |
4656 |
/* Accumulate. */
|
4657 |
neon_load_reg64(cpu_V0, rd + pass); |
4658 |
tcg_gen_add_i64(cpu_V0, cpu_V0, cpu_V1); |
4659 |
} else if (op == 4 || (op == 5 && u)) { |
4660 |
/* Insert */
|
4661 |
cpu_abort(env, "VS[LR]I.64 not implemented");
|
4662 |
} |
4663 |
neon_store_reg64(cpu_V0, rd + pass); |
4664 |
} else { /* size < 3 */ |
4665 |
/* Operands in T0 and T1. */
|
4666 |
tmp = neon_load_reg(rm, pass); |
4667 |
tmp2 = new_tmp(); |
4668 |
tcg_gen_movi_i32(tmp2, imm); |
4669 |
switch (op) {
|
4670 |
case 0: /* VSHR */ |
4671 |
case 1: /* VSRA */ |
4672 |
GEN_NEON_INTEGER_OP(shl); |
4673 |
break;
|
4674 |
case 2: /* VRSHR */ |
4675 |
case 3: /* VRSRA */ |
4676 |
GEN_NEON_INTEGER_OP(rshl); |
4677 |
break;
|
4678 |
case 4: /* VSRI */ |
4679 |
if (!u)
|
4680 |
return 1; |
4681 |
GEN_NEON_INTEGER_OP(shl); |
4682 |
break;
|
4683 |
case 5: /* VSHL, VSLI */ |
4684 |
switch (size) {
|
4685 |
case 0: gen_helper_neon_shl_u8(tmp, tmp, tmp2); break; |
4686 |
case 1: gen_helper_neon_shl_u16(tmp, tmp, tmp2); break; |
4687 |
case 2: gen_helper_neon_shl_u32(tmp, tmp, tmp2); break; |
4688 |
default: return 1; |
4689 |
} |
4690 |
break;
|
4691 |
case 6: /* VQSHL */ |
4692 |
GEN_NEON_INTEGER_OP_ENV(qshl); |
4693 |
break;
|
4694 |
case 7: /* VQSHLU */ |
4695 |
switch (size) {
|
4696 |
case 0: gen_helper_neon_qshl_u8(tmp, cpu_env, tmp, tmp2); break; |
4697 |
case 1: gen_helper_neon_qshl_u16(tmp, cpu_env, tmp, tmp2); break; |
4698 |
case 2: gen_helper_neon_qshl_u32(tmp, cpu_env, tmp, tmp2); break; |
4699 |
default: return 1; |
4700 |
} |
4701 |
break;
|
4702 |
} |
4703 |
dead_tmp(tmp2); |
4704 |
|
4705 |
if (op == 1 || op == 3) { |
4706 |
/* Accumulate. */
|
4707 |
tmp2 = neon_load_reg(rd, pass); |
4708 |
gen_neon_add(size, tmp2, tmp); |
4709 |
dead_tmp(tmp2); |
4710 |
} else if (op == 4 || (op == 5 && u)) { |
4711 |
/* Insert */
|
4712 |
switch (size) {
|
4713 |
case 0: |
4714 |
if (op == 4) |
4715 |
mask = 0xff >> -shift;
|
4716 |
else
|
4717 |
mask = (uint8_t)(0xff << shift);
|
4718 |
mask |= mask << 8;
|
4719 |
mask |= mask << 16;
|
4720 |
break;
|
4721 |
case 1: |
4722 |
if (op == 4) |
4723 |
mask = 0xffff >> -shift;
|
4724 |
else
|
4725 |
mask = (uint16_t)(0xffff << shift);
|
4726 |
mask |= mask << 16;
|
4727 |
break;
|
4728 |
case 2: |
4729 |
if (shift < -31 || shift > 31) { |
4730 |
mask = 0;
|
4731 |
} else {
|
4732 |
if (op == 4) |
4733 |
mask = 0xffffffffu >> -shift;
|
4734 |
else
|
4735 |
mask = 0xffffffffu << shift;
|
4736 |
} |
4737 |
break;
|
4738 |
default:
|
4739 |
abort(); |
4740 |
} |
4741 |
tmp2 = neon_load_reg(rd, pass); |
4742 |
tcg_gen_andi_i32(tmp, tmp, mask); |
4743 |
tcg_gen_andi_i32(tmp2, tmp2, ~mask); |
4744 |
tcg_gen_or_i32(tmp, tmp, tmp2); |
4745 |
dead_tmp(tmp2); |
4746 |
} |
4747 |
neon_store_reg(rd, pass, tmp); |
4748 |
} |
4749 |
} /* for pass */
|
4750 |
} else if (op < 10) { |
4751 |
/* Shift by immediate and narrow:
|
4752 |
VSHRN, VRSHRN, VQSHRN, VQRSHRN. */
|
4753 |
shift = shift - (1 << (size + 3)); |
4754 |
size++; |
4755 |
switch (size) {
|
4756 |
case 1: |
4757 |
imm = (uint16_t)shift; |
4758 |
imm |= imm << 16;
|
4759 |
tmp2 = tcg_const_i32(imm); |
4760 |
TCGV_UNUSED_I64(tmp64); |
4761 |
break;
|
4762 |
case 2: |
4763 |
imm = (uint32_t)shift; |
4764 |
tmp2 = tcg_const_i32(imm); |
4765 |
TCGV_UNUSED_I64(tmp64); |
4766 |
break;
|
4767 |
case 3: |
4768 |
tmp64 = tcg_const_i64(shift); |
4769 |
TCGV_UNUSED(tmp2); |
4770 |
break;
|
4771 |
default:
|
4772 |
abort(); |
4773 |
} |
4774 |
|
4775 |
for (pass = 0; pass < 2; pass++) { |
4776 |
if (size == 3) { |
4777 |
neon_load_reg64(cpu_V0, rm + pass); |
4778 |
if (q) {
|
4779 |
if (u)
|
4780 |
gen_helper_neon_rshl_u64(cpu_V0, cpu_V0, tmp64); |
4781 |
else
|
4782 |
gen_helper_neon_rshl_s64(cpu_V0, cpu_V0, tmp64); |
4783 |
} else {
|
4784 |
if (u)
|
4785 |
gen_helper_neon_shl_u64(cpu_V0, cpu_V0, tmp64); |
4786 |
else
|
4787 |
gen_helper_neon_shl_s64(cpu_V0, cpu_V0, tmp64); |
4788 |
} |
4789 |
} else {
|
4790 |
tmp = neon_load_reg(rm + pass, 0);
|
4791 |
gen_neon_shift_narrow(size, tmp, tmp2, q, u); |
4792 |
tmp3 = neon_load_reg(rm + pass, 1);
|
4793 |
gen_neon_shift_narrow(size, tmp3, tmp2, q, u); |
4794 |
tcg_gen_concat_i32_i64(cpu_V0, tmp, tmp3); |
4795 |
dead_tmp(tmp); |
4796 |
dead_tmp(tmp3); |
4797 |
} |
4798 |
tmp = new_tmp(); |
4799 |
if (op == 8 && !u) { |
4800 |
gen_neon_narrow(size - 1, tmp, cpu_V0);
|
4801 |
} else {
|
4802 |
if (op == 8) |
4803 |
gen_neon_narrow_sats(size - 1, tmp, cpu_V0);
|
4804 |
else
|
4805 |
gen_neon_narrow_satu(size - 1, tmp, cpu_V0);
|
4806 |
} |
4807 |
neon_store_reg(rd, pass, tmp); |
4808 |
} /* for pass */
|
4809 |
if (size == 3) { |
4810 |
tcg_temp_free_i64(tmp64); |
4811 |
} else {
|
4812 |
dead_tmp(tmp2); |
4813 |
} |
4814 |
} else if (op == 10) { |
4815 |
/* VSHLL */
|
4816 |
if (q || size == 3) |
4817 |
return 1; |
4818 |
tmp = neon_load_reg(rm, 0);
|
4819 |
tmp2 = neon_load_reg(rm, 1);
|
4820 |
for (pass = 0; pass < 2; pass++) { |
4821 |
if (pass == 1) |
4822 |
tmp = tmp2; |
4823 |
|
4824 |
gen_neon_widen(cpu_V0, tmp, size, u); |
4825 |
|
4826 |
if (shift != 0) { |
4827 |
/* The shift is less than the width of the source
|
4828 |
type, so we can just shift the whole register. */
|
4829 |
tcg_gen_shli_i64(cpu_V0, cpu_V0, shift); |
4830 |
if (size < 2 || !u) { |
4831 |
uint64_t imm64; |
4832 |
if (size == 0) { |
4833 |
imm = (0xffu >> (8 - shift)); |
4834 |
imm |= imm << 16;
|
4835 |
} else {
|
4836 |
imm = 0xffff >> (16 - shift); |
4837 |
} |
4838 |
imm64 = imm | (((uint64_t)imm) << 32);
|
4839 |
tcg_gen_andi_i64(cpu_V0, cpu_V0, imm64); |
4840 |
} |
4841 |
} |
4842 |
neon_store_reg64(cpu_V0, rd + pass); |
4843 |
} |
4844 |
} else if (op == 15 || op == 16) { |
4845 |
/* VCVT fixed-point. */
|
4846 |
for (pass = 0; pass < (q ? 4 : 2); pass++) { |
4847 |
tcg_gen_ld_f32(cpu_F0s, cpu_env, neon_reg_offset(rm, pass)); |
4848 |
if (op & 1) { |
4849 |
if (u)
|
4850 |
gen_vfp_ulto(0, shift);
|
4851 |
else
|
4852 |
gen_vfp_slto(0, shift);
|
4853 |
} else {
|
4854 |
if (u)
|
4855 |
gen_vfp_toul(0, shift);
|
4856 |
else
|
4857 |
gen_vfp_tosl(0, shift);
|
4858 |
} |
4859 |
tcg_gen_st_f32(cpu_F0s, cpu_env, neon_reg_offset(rd, pass)); |
4860 |
} |
4861 |
} else {
|
4862 |
return 1; |
4863 |
} |
4864 |
} else { /* (insn & 0x00380080) == 0 */ |
4865 |
int invert;
|
4866 |
|
4867 |
op = (insn >> 8) & 0xf; |
4868 |
/* One register and immediate. */
|
4869 |
imm = (u << 7) | ((insn >> 12) & 0x70) | (insn & 0xf); |
4870 |
invert = (insn & (1 << 5)) != 0; |
4871 |
switch (op) {
|
4872 |
case 0: case 1: |
4873 |
/* no-op */
|
4874 |
break;
|
4875 |
case 2: case 3: |
4876 |
imm <<= 8;
|
4877 |
break;
|
4878 |
case 4: case 5: |
4879 |
imm <<= 16;
|
4880 |
break;
|
4881 |
case 6: case 7: |
4882 |
imm <<= 24;
|
4883 |
break;
|
4884 |
case 8: case 9: |
4885 |
imm |= imm << 16;
|
4886 |
break;
|
4887 |
case 10: case 11: |
4888 |
imm = (imm << 8) | (imm << 24); |
4889 |
break;
|
4890 |
case 12: |
4891 |
imm = (imm < 8) | 0xff; |
4892 |
break;
|
4893 |
case 13: |
4894 |
imm = (imm << 16) | 0xffff; |
4895 |
break;
|
4896 |
case 14: |
4897 |
imm |= (imm << 8) | (imm << 16) | (imm << 24); |
4898 |
if (invert)
|
4899 |
imm = ~imm; |
4900 |
break;
|
4901 |
case 15: |
4902 |
imm = ((imm & 0x80) << 24) | ((imm & 0x3f) << 19) |
4903 |
| ((imm & 0x40) ? (0x1f << 25) : (1 << 30)); |
4904 |
break;
|
4905 |
} |
4906 |
if (invert)
|
4907 |
imm = ~imm; |
4908 |
|
4909 |
for (pass = 0; pass < (q ? 4 : 2); pass++) { |
4910 |
if (op & 1 && op < 12) { |
4911 |
tmp = neon_load_reg(rd, pass); |
4912 |
if (invert) {
|
4913 |
/* The immediate value has already been inverted, so
|
4914 |
BIC becomes AND. */
|
4915 |
tcg_gen_andi_i32(tmp, tmp, imm); |
4916 |
} else {
|
4917 |
tcg_gen_ori_i32(tmp, tmp, imm); |
4918 |
} |
4919 |
} else {
|
4920 |
/* VMOV, VMVN. */
|
4921 |
tmp = new_tmp(); |
4922 |
if (op == 14 && invert) { |
4923 |
uint32_t val; |
4924 |
val = 0;
|
4925 |
for (n = 0; n < 4; n++) { |
4926 |
if (imm & (1 << (n + (pass & 1) * 4))) |
4927 |
val |= 0xff << (n * 8); |
4928 |
} |
4929 |
tcg_gen_movi_i32(tmp, val); |
4930 |
} else {
|
4931 |
tcg_gen_movi_i32(tmp, imm); |
4932 |
} |
4933 |
} |
4934 |
neon_store_reg(rd, pass, tmp); |
4935 |
} |
4936 |
} |
4937 |
} else { /* (insn & 0x00800010 == 0x00800000) */ |
4938 |
if (size != 3) { |
4939 |
op = (insn >> 8) & 0xf; |
4940 |
if ((insn & (1 << 6)) == 0) { |
4941 |
/* Three registers of different lengths. */
|
4942 |
int src1_wide;
|
4943 |
int src2_wide;
|
4944 |
int prewiden;
|
4945 |
/* prewiden, src1_wide, src2_wide */
|
4946 |
static const int neon_3reg_wide[16][3] = { |
4947 |
{1, 0, 0}, /* VADDL */ |
4948 |
{1, 1, 0}, /* VADDW */ |
4949 |
{1, 0, 0}, /* VSUBL */ |
4950 |
{1, 1, 0}, /* VSUBW */ |
4951 |
{0, 1, 1}, /* VADDHN */ |
4952 |
{0, 0, 0}, /* VABAL */ |
4953 |
{0, 1, 1}, /* VSUBHN */ |
4954 |
{0, 0, 0}, /* VABDL */ |
4955 |
{0, 0, 0}, /* VMLAL */ |
4956 |
{0, 0, 0}, /* VQDMLAL */ |
4957 |
{0, 0, 0}, /* VMLSL */ |
4958 |
{0, 0, 0}, /* VQDMLSL */ |
4959 |
{0, 0, 0}, /* Integer VMULL */ |
4960 |
{0, 0, 0}, /* VQDMULL */ |
4961 |
{0, 0, 0} /* Polynomial VMULL */ |
4962 |
}; |
4963 |
|
4964 |
prewiden = neon_3reg_wide[op][0];
|
4965 |
src1_wide = neon_3reg_wide[op][1];
|
4966 |
src2_wide = neon_3reg_wide[op][2];
|
4967 |
|
4968 |
if (size == 0 && (op == 9 || op == 11 || op == 13)) |
4969 |
return 1; |
4970 |
|
4971 |
/* Avoid overlapping operands. Wide source operands are
|
4972 |
always aligned so will never overlap with wide
|
4973 |
destinations in problematic ways. */
|
4974 |
if (rd == rm && !src2_wide) {
|
4975 |
tmp = neon_load_reg(rm, 1);
|
4976 |
neon_store_scratch(2, tmp);
|
4977 |
} else if (rd == rn && !src1_wide) { |
4978 |
tmp = neon_load_reg(rn, 1);
|
4979 |
neon_store_scratch(2, tmp);
|
4980 |
} |
4981 |
TCGV_UNUSED(tmp3); |
4982 |
for (pass = 0; pass < 2; pass++) { |
4983 |
if (src1_wide) {
|
4984 |
neon_load_reg64(cpu_V0, rn + pass); |
4985 |
TCGV_UNUSED(tmp); |
4986 |
} else {
|
4987 |
if (pass == 1 && rd == rn) { |
4988 |
tmp = neon_load_scratch(2);
|
4989 |
} else {
|
4990 |
tmp = neon_load_reg(rn, pass); |
4991 |
} |
4992 |
if (prewiden) {
|
4993 |
gen_neon_widen(cpu_V0, tmp, size, u); |
4994 |
} |
4995 |
} |
4996 |
if (src2_wide) {
|
4997 |
neon_load_reg64(cpu_V1, rm + pass); |
4998 |
TCGV_UNUSED(tmp2); |
4999 |
} else {
|
5000 |
if (pass == 1 && rd == rm) { |
5001 |
tmp2 = neon_load_scratch(2);
|
5002 |
} else {
|
5003 |
tmp2 = neon_load_reg(rm, pass); |
5004 |
} |
5005 |
if (prewiden) {
|
5006 |
gen_neon_widen(cpu_V1, tmp2, size, u); |
5007 |
} |
5008 |
} |
5009 |
switch (op) {
|
5010 |
case 0: case 1: case 4: /* VADDL, VADDW, VADDHN, VRADDHN */ |
5011 |
gen_neon_addl(size); |
5012 |
break;
|
5013 |
case 2: case 3: case 6: /* VSUBL, VSUBW, VSUBHN, VRSUBHN */ |
5014 |
gen_neon_subl(size); |
5015 |
break;
|
5016 |
case 5: case 7: /* VABAL, VABDL */ |
5017 |
switch ((size << 1) | u) { |
5018 |
case 0: |
5019 |
gen_helper_neon_abdl_s16(cpu_V0, tmp, tmp2); |
5020 |
break;
|
5021 |
case 1: |
5022 |
gen_helper_neon_abdl_u16(cpu_V0, tmp, tmp2); |
5023 |
break;
|
5024 |
case 2: |
5025 |
gen_helper_neon_abdl_s32(cpu_V0, tmp, tmp2); |
5026 |
break;
|
5027 |
case 3: |
5028 |
gen_helper_neon_abdl_u32(cpu_V0, tmp, tmp2); |
5029 |
break;
|
5030 |
case 4: |
5031 |
gen_helper_neon_abdl_s64(cpu_V0, tmp, tmp2); |
5032 |
break;
|
5033 |
case 5: |
5034 |
gen_helper_neon_abdl_u64(cpu_V0, tmp, tmp2); |
5035 |
break;
|
5036 |
default: abort();
|
5037 |
} |
5038 |
dead_tmp(tmp2); |
5039 |
dead_tmp(tmp); |
5040 |
break;
|
5041 |
case 8: case 9: case 10: case 11: case 12: case 13: |
5042 |
/* VMLAL, VQDMLAL, VMLSL, VQDMLSL, VMULL, VQDMULL */
|
5043 |
gen_neon_mull(cpu_V0, tmp, tmp2, size, u); |
5044 |
dead_tmp(tmp2); |
5045 |
dead_tmp(tmp); |
5046 |
break;
|
5047 |
case 14: /* Polynomial VMULL */ |
5048 |
cpu_abort(env, "Polynomial VMULL not implemented");
|
5049 |
|
5050 |
default: /* 15 is RESERVED. */ |
5051 |
return 1; |
5052 |
} |
5053 |
if (op == 5 || op == 13 || (op >= 8 && op <= 11)) { |
5054 |
/* Accumulate. */
|
5055 |
if (op == 10 || op == 11) { |
5056 |
gen_neon_negl(cpu_V0, size); |
5057 |
} |
5058 |
|
5059 |
if (op != 13) { |
5060 |
neon_load_reg64(cpu_V1, rd + pass); |
5061 |
} |
5062 |
|
5063 |
switch (op) {
|
5064 |
case 5: case 8: case 10: /* VABAL, VMLAL, VMLSL */ |
5065 |
gen_neon_addl(size); |
5066 |
break;
|
5067 |
case 9: case 11: /* VQDMLAL, VQDMLSL */ |
5068 |
gen_neon_addl_saturate(cpu_V0, cpu_V0, size); |
5069 |
gen_neon_addl_saturate(cpu_V0, cpu_V1, size); |
5070 |
break;
|
5071 |
/* Fall through. */
|
5072 |
case 13: /* VQDMULL */ |
5073 |
gen_neon_addl_saturate(cpu_V0, cpu_V0, size); |
5074 |
break;
|
5075 |
default:
|
5076 |
abort(); |
5077 |
} |
5078 |
neon_store_reg64(cpu_V0, rd + pass); |
5079 |
} else if (op == 4 || op == 6) { |
5080 |
/* Narrowing operation. */
|
5081 |
tmp = new_tmp(); |
5082 |
if (!u) {
|
5083 |
switch (size) {
|
5084 |
case 0: |
5085 |
gen_helper_neon_narrow_high_u8(tmp, cpu_V0); |
5086 |
break;
|
5087 |
case 1: |
5088 |
gen_helper_neon_narrow_high_u16(tmp, cpu_V0); |
5089 |
break;
|
5090 |
case 2: |
5091 |
tcg_gen_shri_i64(cpu_V0, cpu_V0, 32);
|
5092 |
tcg_gen_trunc_i64_i32(tmp, cpu_V0); |
5093 |
break;
|
5094 |
default: abort();
|
5095 |
} |
5096 |
} else {
|
5097 |
switch (size) {
|
5098 |
case 0: |
5099 |
gen_helper_neon_narrow_round_high_u8(tmp, cpu_V0); |
5100 |
break;
|
5101 |
case 1: |
5102 |
gen_helper_neon_narrow_round_high_u16(tmp, cpu_V0); |
5103 |
break;
|
5104 |
case 2: |
5105 |
tcg_gen_addi_i64(cpu_V0, cpu_V0, 1u << 31); |
5106 |
tcg_gen_shri_i64(cpu_V0, cpu_V0, 32);
|
5107 |
tcg_gen_trunc_i64_i32(tmp, cpu_V0); |
5108 |
break;
|
5109 |
default: abort();
|
5110 |
} |
5111 |
} |
5112 |
if (pass == 0) { |
5113 |
tmp3 = tmp; |
5114 |
} else {
|
5115 |
neon_store_reg(rd, 0, tmp3);
|
5116 |
neon_store_reg(rd, 1, tmp);
|
5117 |
} |
5118 |
} else {
|
5119 |
/* Write back the result. */
|
5120 |
neon_store_reg64(cpu_V0, rd + pass); |
5121 |
} |
5122 |
} |
5123 |
} else {
|
5124 |
/* Two registers and a scalar. */
|
5125 |
switch (op) {
|
5126 |
case 0: /* Integer VMLA scalar */ |
5127 |
case 1: /* Float VMLA scalar */ |
5128 |
case 4: /* Integer VMLS scalar */ |
5129 |
case 5: /* Floating point VMLS scalar */ |
5130 |
case 8: /* Integer VMUL scalar */ |
5131 |
case 9: /* Floating point VMUL scalar */ |
5132 |
case 12: /* VQDMULH scalar */ |
5133 |
case 13: /* VQRDMULH scalar */ |
5134 |
tmp = neon_get_scalar(size, rm); |
5135 |
neon_store_scratch(0, tmp);
|
5136 |
for (pass = 0; pass < (u ? 4 : 2); pass++) { |
5137 |
tmp = neon_load_scratch(0);
|
5138 |
tmp2 = neon_load_reg(rn, pass); |
5139 |
if (op == 12) { |
5140 |
if (size == 1) { |
5141 |
gen_helper_neon_qdmulh_s16(tmp, cpu_env, tmp, tmp2); |
5142 |
} else {
|
5143 |
gen_helper_neon_qdmulh_s32(tmp, cpu_env, tmp, tmp2); |
5144 |
} |
5145 |
} else if (op == 13) { |
5146 |
if (size == 1) { |
5147 |
gen_helper_neon_qrdmulh_s16(tmp, cpu_env, tmp, tmp2); |
5148 |
} else {
|
5149 |
gen_helper_neon_qrdmulh_s32(tmp, cpu_env, tmp, tmp2); |
5150 |
} |
5151 |
} else if (op & 1) { |
5152 |
gen_helper_neon_mul_f32(tmp, tmp, tmp2); |
5153 |
} else {
|
5154 |
switch (size) {
|
5155 |
case 0: gen_helper_neon_mul_u8(tmp, tmp, tmp2); break; |
5156 |
case 1: gen_helper_neon_mul_u16(tmp, tmp, tmp2); break; |
5157 |
case 2: tcg_gen_mul_i32(tmp, tmp, tmp2); break; |
5158 |
default: return 1; |
5159 |
} |
5160 |
} |
5161 |
dead_tmp(tmp2); |
5162 |
if (op < 8) { |
5163 |
/* Accumulate. */
|
5164 |
tmp2 = neon_load_reg(rd, pass); |
5165 |
switch (op) {
|
5166 |
case 0: |
5167 |
gen_neon_add(size, tmp, tmp2); |
5168 |
break;
|
5169 |
case 1: |
5170 |
gen_helper_neon_add_f32(tmp, tmp, tmp2); |
5171 |
break;
|
5172 |
case 4: |
5173 |
gen_neon_rsb(size, tmp, tmp2); |
5174 |
break;
|
5175 |
case 5: |
5176 |
gen_helper_neon_sub_f32(tmp, tmp2, tmp); |
5177 |
break;
|
5178 |
default:
|
5179 |
abort(); |
5180 |
} |
5181 |
dead_tmp(tmp2); |
5182 |
} |
5183 |
neon_store_reg(rd, pass, tmp); |
5184 |
} |
5185 |
break;
|
5186 |
case 2: /* VMLAL sclar */ |
5187 |
case 3: /* VQDMLAL scalar */ |
5188 |
case 6: /* VMLSL scalar */ |
5189 |
case 7: /* VQDMLSL scalar */ |
5190 |
case 10: /* VMULL scalar */ |
5191 |
case 11: /* VQDMULL scalar */ |
5192 |
if (size == 0 && (op == 3 || op == 7 || op == 11)) |
5193 |
return 1; |
5194 |
|
5195 |
tmp2 = neon_get_scalar(size, rm); |
5196 |
tmp3 = neon_load_reg(rn, 1);
|
5197 |
|
5198 |
for (pass = 0; pass < 2; pass++) { |
5199 |
if (pass == 0) { |
5200 |
tmp = neon_load_reg(rn, 0);
|
5201 |
} else {
|
5202 |
tmp = tmp3; |
5203 |
} |
5204 |
gen_neon_mull(cpu_V0, tmp, tmp2, size, u); |
5205 |
dead_tmp(tmp); |
5206 |
if (op == 6 || op == 7) { |
5207 |
gen_neon_negl(cpu_V0, size); |
5208 |
} |
5209 |
if (op != 11) { |
5210 |
neon_load_reg64(cpu_V1, rd + pass); |
5211 |
} |
5212 |
switch (op) {
|
5213 |
case 2: case 6: |
5214 |
gen_neon_addl(size); |
5215 |
break;
|
5216 |
case 3: case 7: |
5217 |
gen_neon_addl_saturate(cpu_V0, cpu_V0, size); |
5218 |
gen_neon_addl_saturate(cpu_V0, cpu_V1, size); |
5219 |
break;
|
5220 |
case 10: |
5221 |
/* no-op */
|
5222 |
break;
|
5223 |
case 11: |
5224 |
gen_neon_addl_saturate(cpu_V0, cpu_V0, size); |
5225 |
break;
|
5226 |
default:
|
5227 |
abort(); |
5228 |
} |
5229 |
neon_store_reg64(cpu_V0, rd + pass); |
5230 |
} |
5231 |
|
5232 |
dead_tmp(tmp2); |
5233 |
|
5234 |
break;
|
5235 |
default: /* 14 and 15 are RESERVED */ |
5236 |
return 1; |
5237 |
} |
5238 |
} |
5239 |
} else { /* size == 3 */ |
5240 |
if (!u) {
|
5241 |
/* Extract. */
|
5242 |
imm = (insn >> 8) & 0xf; |
5243 |
count = q + 1;
|
5244 |
|
5245 |
if (imm > 7 && !q) |
5246 |
return 1; |
5247 |
|
5248 |
if (imm == 0) { |
5249 |
neon_load_reg64(cpu_V0, rn); |
5250 |
if (q) {
|
5251 |
neon_load_reg64(cpu_V1, rn + 1);
|
5252 |
} |
5253 |
} else if (imm == 8) { |
5254 |
neon_load_reg64(cpu_V0, rn + 1);
|
5255 |
if (q) {
|
5256 |
neon_load_reg64(cpu_V1, rm); |
5257 |
} |
5258 |
} else if (q) { |
5259 |
tmp64 = tcg_temp_new_i64(); |
5260 |
if (imm < 8) { |
5261 |
neon_load_reg64(cpu_V0, rn); |
5262 |
neon_load_reg64(tmp64, rn + 1);
|
5263 |
} else {
|
5264 |
neon_load_reg64(cpu_V0, rn + 1);
|
5265 |
neon_load_reg64(tmp64, rm); |
5266 |
} |
5267 |
tcg_gen_shri_i64(cpu_V0, cpu_V0, (imm & 7) * 8); |
5268 |
tcg_gen_shli_i64(cpu_V1, tmp64, 64 - ((imm & 7) * 8)); |
5269 |
tcg_gen_or_i64(cpu_V0, cpu_V0, cpu_V1); |
5270 |
if (imm < 8) { |
5271 |
neon_load_reg64(cpu_V1, rm); |
5272 |
} else {
|
5273 |
neon_load_reg64(cpu_V1, rm + 1);
|
5274 |
imm -= 8;
|
5275 |
} |
5276 |
tcg_gen_shli_i64(cpu_V1, cpu_V1, 64 - (imm * 8)); |
5277 |
tcg_gen_shri_i64(tmp64, tmp64, imm * 8);
|
5278 |
tcg_gen_or_i64(cpu_V1, cpu_V1, tmp64); |
5279 |
tcg_temp_free_i64(tmp64); |
5280 |
} else {
|
5281 |
/* BUGFIX */
|
5282 |
neon_load_reg64(cpu_V0, rn); |
5283 |
tcg_gen_shri_i64(cpu_V0, cpu_V0, imm * 8);
|
5284 |
neon_load_reg64(cpu_V1, rm); |
5285 |
tcg_gen_shli_i64(cpu_V1, cpu_V1, 64 - (imm * 8)); |
5286 |
tcg_gen_or_i64(cpu_V0, cpu_V0, cpu_V1); |
5287 |
} |
5288 |
neon_store_reg64(cpu_V0, rd); |
5289 |
if (q) {
|
5290 |
neon_store_reg64(cpu_V1, rd + 1);
|
5291 |
} |
5292 |
} else if ((insn & (1 << 11)) == 0) { |
5293 |
/* Two register misc. */
|
5294 |
op = ((insn >> 12) & 0x30) | ((insn >> 7) & 0xf); |
5295 |
size = (insn >> 18) & 3; |
5296 |
switch (op) {
|
5297 |
case 0: /* VREV64 */ |
5298 |
if (size == 3) |
5299 |
return 1; |
5300 |
for (pass = 0; pass < (q ? 2 : 1); pass++) { |
5301 |
tmp = neon_load_reg(rm, pass * 2);
|
5302 |
tmp2 = neon_load_reg(rm, pass * 2 + 1); |
5303 |
switch (size) {
|
5304 |
case 0: tcg_gen_bswap32_i32(tmp, tmp); break; |
5305 |
case 1: gen_swap_half(tmp); break; |
5306 |
case 2: /* no-op */ break; |
5307 |
default: abort();
|
5308 |
} |
5309 |
neon_store_reg(rd, pass * 2 + 1, tmp); |
5310 |
if (size == 2) { |
5311 |
neon_store_reg(rd, pass * 2, tmp2);
|
5312 |
} else {
|
5313 |
switch (size) {
|
5314 |
case 0: tcg_gen_bswap32_i32(tmp2, tmp2); break; |
5315 |
case 1: gen_swap_half(tmp2); break; |
5316 |
default: abort();
|
5317 |
} |
5318 |
neon_store_reg(rd, pass * 2, tmp2);
|
5319 |
} |
5320 |
} |
5321 |
break;
|
5322 |
case 4: case 5: /* VPADDL */ |
5323 |
case 12: case 13: /* VPADAL */ |
5324 |
if (size == 3) |
5325 |
return 1; |
5326 |
for (pass = 0; pass < q + 1; pass++) { |
5327 |
tmp = neon_load_reg(rm, pass * 2);
|
5328 |
gen_neon_widen(cpu_V0, tmp, size, op & 1);
|
5329 |
tmp = neon_load_reg(rm, pass * 2 + 1); |
5330 |
gen_neon_widen(cpu_V1, tmp, size, op & 1);
|
5331 |
switch (size) {
|
5332 |
case 0: gen_helper_neon_paddl_u16(CPU_V001); break; |
5333 |
case 1: gen_helper_neon_paddl_u32(CPU_V001); break; |
5334 |
case 2: tcg_gen_add_i64(CPU_V001); break; |
5335 |
default: abort();
|
5336 |
} |
5337 |
if (op >= 12) { |
5338 |
/* Accumulate. */
|
5339 |
neon_load_reg64(cpu_V1, rd + pass); |
5340 |
gen_neon_addl(size); |
5341 |
} |
5342 |
neon_store_reg64(cpu_V0, rd + pass); |
5343 |
} |
5344 |
break;
|
5345 |
case 33: /* VTRN */ |
5346 |
if (size == 2) { |
5347 |
for (n = 0; n < (q ? 4 : 2); n += 2) { |
5348 |
tmp = neon_load_reg(rm, n); |
5349 |
tmp2 = neon_load_reg(rd, n + 1);
|
5350 |
neon_store_reg(rm, n, tmp2); |
5351 |
neon_store_reg(rd, n + 1, tmp);
|
5352 |
} |
5353 |
} else {
|
5354 |
goto elementwise;
|
5355 |
} |
5356 |
break;
|
5357 |
case 34: /* VUZP */ |
5358 |
/* Reg Before After
|
5359 |
Rd A3 A2 A1 A0 B2 B0 A2 A0
|
5360 |
Rm B3 B2 B1 B0 B3 B1 A3 A1
|
5361 |
*/
|
5362 |
if (size == 3) |
5363 |
return 1; |
5364 |
gen_neon_unzip(rd, q, 0, size);
|
5365 |
gen_neon_unzip(rm, q, 4, size);
|
5366 |
if (q) {
|
5367 |
static int unzip_order_q[8] = |
5368 |
{0, 2, 4, 6, 1, 3, 5, 7}; |
5369 |
for (n = 0; n < 8; n++) { |
5370 |
int reg = (n < 4) ? rd : rm; |
5371 |
tmp = neon_load_scratch(unzip_order_q[n]); |
5372 |
neon_store_reg(reg, n % 4, tmp);
|
5373 |
} |
5374 |
} else {
|
5375 |
static int unzip_order[4] = |
5376 |
{0, 4, 1, 5}; |
5377 |
for (n = 0; n < 4; n++) { |
5378 |
int reg = (n < 2) ? rd : rm; |
5379 |
tmp = neon_load_scratch(unzip_order[n]); |
5380 |
neon_store_reg(reg, n % 2, tmp);
|
5381 |
} |
5382 |
} |
5383 |
break;
|
5384 |
case 35: /* VZIP */ |
5385 |
/* Reg Before After
|
5386 |
Rd A3 A2 A1 A0 B1 A1 B0 A0
|
5387 |
Rm B3 B2 B1 B0 B3 A3 B2 A2
|
5388 |
*/
|
5389 |
if (size == 3) |
5390 |
return 1; |
5391 |
count = (q ? 4 : 2); |
5392 |
for (n = 0; n < count; n++) { |
5393 |
tmp = neon_load_reg(rd, n); |
5394 |
tmp2 = neon_load_reg(rd, n); |
5395 |
switch (size) {
|
5396 |
case 0: gen_neon_zip_u8(tmp, tmp2); break; |
5397 |
case 1: gen_neon_zip_u16(tmp, tmp2); break; |
5398 |
case 2: /* no-op */; break; |
5399 |
default: abort();
|
5400 |
} |
5401 |
neon_store_scratch(n * 2, tmp);
|
5402 |
neon_store_scratch(n * 2 + 1, tmp2); |
5403 |
} |
5404 |
for (n = 0; n < count * 2; n++) { |
5405 |
int reg = (n < count) ? rd : rm;
|
5406 |
tmp = neon_load_scratch(n); |
5407 |
neon_store_reg(reg, n % count, tmp); |
5408 |
} |
5409 |
break;
|
5410 |
case 36: case 37: /* VMOVN, VQMOVUN, VQMOVN */ |
5411 |
if (size == 3) |
5412 |
return 1; |
5413 |
TCGV_UNUSED(tmp2); |
5414 |
for (pass = 0; pass < 2; pass++) { |
5415 |
neon_load_reg64(cpu_V0, rm + pass); |
5416 |
tmp = new_tmp(); |
5417 |
if (op == 36 && q == 0) { |
5418 |
gen_neon_narrow(size, tmp, cpu_V0); |
5419 |
} else if (q) { |
5420 |
gen_neon_narrow_satu(size, tmp, cpu_V0); |
5421 |
} else {
|
5422 |
gen_neon_narrow_sats(size, tmp, cpu_V0); |
5423 |
} |
5424 |
if (pass == 0) { |
5425 |
tmp2 = tmp; |
5426 |
} else {
|
5427 |
neon_store_reg(rd, 0, tmp2);
|
5428 |
neon_store_reg(rd, 1, tmp);
|
5429 |
} |
5430 |
} |
5431 |
break;
|
5432 |
case 38: /* VSHLL */ |
5433 |
if (q || size == 3) |
5434 |
return 1; |
5435 |
tmp = neon_load_reg(rm, 0);
|
5436 |
tmp2 = neon_load_reg(rm, 1);
|
5437 |
for (pass = 0; pass < 2; pass++) { |
5438 |
if (pass == 1) |
5439 |
tmp = tmp2; |
5440 |
gen_neon_widen(cpu_V0, tmp, size, 1);
|
5441 |
tcg_gen_shli_i64(cpu_V0, cpu_V0, 8 << size);
|
5442 |
neon_store_reg64(cpu_V0, rd + pass); |
5443 |
} |
5444 |
break;
|
5445 |
case 44: /* VCVT.F16.F32 */ |
5446 |
if (!arm_feature(env, ARM_FEATURE_VFP_FP16))
|
5447 |
return 1; |
5448 |
tmp = new_tmp(); |
5449 |
tmp2 = new_tmp(); |
5450 |
tcg_gen_ld_f32(cpu_F0s, cpu_env, neon_reg_offset(rm, 0));
|
5451 |
gen_helper_vfp_fcvt_f32_to_f16(tmp, cpu_F0s, cpu_env); |
5452 |
tcg_gen_ld_f32(cpu_F0s, cpu_env, neon_reg_offset(rm, 1));
|
5453 |
gen_helper_vfp_fcvt_f32_to_f16(tmp2, cpu_F0s, cpu_env); |
5454 |
tcg_gen_shli_i32(tmp2, tmp2, 16);
|
5455 |
tcg_gen_or_i32(tmp2, tmp2, tmp); |
5456 |
tcg_gen_ld_f32(cpu_F0s, cpu_env, neon_reg_offset(rm, 2));
|
5457 |
gen_helper_vfp_fcvt_f32_to_f16(tmp, cpu_F0s, cpu_env); |
5458 |
tcg_gen_ld_f32(cpu_F0s, cpu_env, neon_reg_offset(rm, 3));
|
5459 |
neon_store_reg(rd, 0, tmp2);
|
5460 |
tmp2 = new_tmp(); |
5461 |
gen_helper_vfp_fcvt_f32_to_f16(tmp2, cpu_F0s, cpu_env); |
5462 |
tcg_gen_shli_i32(tmp2, tmp2, 16);
|
5463 |
tcg_gen_or_i32(tmp2, tmp2, tmp); |
5464 |
neon_store_reg(rd, 1, tmp2);
|
5465 |
dead_tmp(tmp); |
5466 |
break;
|
5467 |
case 46: /* VCVT.F32.F16 */ |
5468 |
if (!arm_feature(env, ARM_FEATURE_VFP_FP16))
|
5469 |
return 1; |
5470 |
tmp3 = new_tmp(); |
5471 |
tmp = neon_load_reg(rm, 0);
|
5472 |
tmp2 = neon_load_reg(rm, 1);
|
5473 |
tcg_gen_ext16u_i32(tmp3, tmp); |
5474 |
gen_helper_vfp_fcvt_f16_to_f32(cpu_F0s, tmp3, cpu_env); |
5475 |
tcg_gen_st_f32(cpu_F0s, cpu_env, neon_reg_offset(rd, 0));
|
5476 |
tcg_gen_shri_i32(tmp3, tmp, 16);
|
5477 |
gen_helper_vfp_fcvt_f16_to_f32(cpu_F0s, tmp3, cpu_env); |
5478 |
tcg_gen_st_f32(cpu_F0s, cpu_env, neon_reg_offset(rd, 1));
|
5479 |
dead_tmp(tmp); |
5480 |
tcg_gen_ext16u_i32(tmp3, tmp2); |
5481 |
gen_helper_vfp_fcvt_f16_to_f32(cpu_F0s, tmp3, cpu_env); |
5482 |
tcg_gen_st_f32(cpu_F0s, cpu_env, neon_reg_offset(rd, 2));
|
5483 |
tcg_gen_shri_i32(tmp3, tmp2, 16);
|
5484 |
gen_helper_vfp_fcvt_f16_to_f32(cpu_F0s, tmp3, cpu_env); |
5485 |
tcg_gen_st_f32(cpu_F0s, cpu_env, neon_reg_offset(rd, 3));
|
5486 |
dead_tmp(tmp2); |
5487 |
dead_tmp(tmp3); |
5488 |
break;
|
5489 |
default:
|
5490 |
elementwise:
|
5491 |
for (pass = 0; pass < (q ? 4 : 2); pass++) { |
5492 |
if (op == 30 || op == 31 || op >= 58) { |
5493 |
tcg_gen_ld_f32(cpu_F0s, cpu_env, |
5494 |
neon_reg_offset(rm, pass)); |
5495 |
TCGV_UNUSED(tmp); |
5496 |
} else {
|
5497 |
tmp = neon_load_reg(rm, pass); |
5498 |
} |
5499 |
switch (op) {
|
5500 |
case 1: /* VREV32 */ |
5501 |
switch (size) {
|
5502 |
case 0: tcg_gen_bswap32_i32(tmp, tmp); break; |
5503 |
case 1: gen_swap_half(tmp); break; |
5504 |
default: return 1; |
5505 |
} |
5506 |
break;
|
5507 |
case 2: /* VREV16 */ |
5508 |
if (size != 0) |
5509 |
return 1; |
5510 |
gen_rev16(tmp); |
5511 |
break;
|
5512 |
case 8: /* CLS */ |
5513 |
switch (size) {
|
5514 |
case 0: gen_helper_neon_cls_s8(tmp, tmp); break; |
5515 |
case 1: gen_helper_neon_cls_s16(tmp, tmp); break; |
5516 |
case 2: gen_helper_neon_cls_s32(tmp, tmp); break; |
5517 |
default: return 1; |
5518 |
} |
5519 |
break;
|
5520 |
case 9: /* CLZ */ |
5521 |
switch (size) {
|
5522 |
case 0: gen_helper_neon_clz_u8(tmp, tmp); break; |
5523 |
case 1: gen_helper_neon_clz_u16(tmp, tmp); break; |
5524 |
case 2: gen_helper_clz(tmp, tmp); break; |
5525 |
default: return 1; |
5526 |
} |
5527 |
break;
|
5528 |
case 10: /* CNT */ |
5529 |
if (size != 0) |
5530 |
return 1; |
5531 |
gen_helper_neon_cnt_u8(tmp, tmp); |
5532 |
break;
|
5533 |
case 11: /* VNOT */ |
5534 |
if (size != 0) |
5535 |
return 1; |
5536 |
tcg_gen_not_i32(tmp, tmp); |
5537 |
break;
|
5538 |
case 14: /* VQABS */ |
5539 |
switch (size) {
|
5540 |
case 0: gen_helper_neon_qabs_s8(tmp, cpu_env, tmp); break; |
5541 |
case 1: gen_helper_neon_qabs_s16(tmp, cpu_env, tmp); break; |
5542 |
case 2: gen_helper_neon_qabs_s32(tmp, cpu_env, tmp); break; |
5543 |
default: return 1; |
5544 |
} |
5545 |
break;
|
5546 |
case 15: /* VQNEG */ |
5547 |
switch (size) {
|
5548 |
case 0: gen_helper_neon_qneg_s8(tmp, cpu_env, tmp); break; |
5549 |
case 1: gen_helper_neon_qneg_s16(tmp, cpu_env, tmp); break; |
5550 |
case 2: gen_helper_neon_qneg_s32(tmp, cpu_env, tmp); break; |
5551 |
default: return 1; |
5552 |
} |
5553 |
break;
|
5554 |
case 16: case 19: /* VCGT #0, VCLE #0 */ |
5555 |
tmp2 = tcg_const_i32(0);
|
5556 |
switch(size) {
|
5557 |
case 0: gen_helper_neon_cgt_s8(tmp, tmp, tmp2); break; |
5558 |
case 1: gen_helper_neon_cgt_s16(tmp, tmp, tmp2); break; |
5559 |
case 2: gen_helper_neon_cgt_s32(tmp, tmp, tmp2); break; |
5560 |
default: return 1; |
5561 |
} |
5562 |
tcg_temp_free(tmp2); |
5563 |
if (op == 19) |
5564 |
tcg_gen_not_i32(tmp, tmp); |
5565 |
break;
|
5566 |
case 17: case 20: /* VCGE #0, VCLT #0 */ |
5567 |
tmp2 = tcg_const_i32(0);
|
5568 |
switch(size) {
|
5569 |
case 0: gen_helper_neon_cge_s8(tmp, tmp, tmp2); break; |
5570 |
case 1: gen_helper_neon_cge_s16(tmp, tmp, tmp2); break; |
5571 |
case 2: gen_helper_neon_cge_s32(tmp, tmp, tmp2); break; |
5572 |
default: return 1; |
5573 |
} |
5574 |
tcg_temp_free(tmp2); |
5575 |
if (op == 20) |
5576 |
tcg_gen_not_i32(tmp, tmp); |
5577 |
break;
|
5578 |
case 18: /* VCEQ #0 */ |
5579 |
tmp2 = tcg_const_i32(0);
|
5580 |
switch(size) {
|
5581 |
case 0: gen_helper_neon_ceq_u8(tmp, tmp, tmp2); break; |
5582 |
case 1: gen_helper_neon_ceq_u16(tmp, tmp, tmp2); break; |
5583 |
case 2: gen_helper_neon_ceq_u32(tmp, tmp, tmp2); break; |
5584 |
default: return 1; |
5585 |
} |
5586 |
tcg_temp_free(tmp2); |
5587 |
break;
|
5588 |
case 22: /* VABS */ |
5589 |
switch(size) {
|
5590 |
case 0: gen_helper_neon_abs_s8(tmp, tmp); break; |
5591 |
case 1: gen_helper_neon_abs_s16(tmp, tmp); break; |
5592 |
case 2: tcg_gen_abs_i32(tmp, tmp); break; |
5593 |
default: return 1; |
5594 |
} |
5595 |
break;
|
5596 |
case 23: /* VNEG */ |
5597 |
if (size == 3) |
5598 |
return 1; |
5599 |
tmp2 = tcg_const_i32(0);
|
5600 |
gen_neon_rsb(size, tmp, tmp2); |
5601 |
tcg_temp_free(tmp2); |
5602 |
break;
|
5603 |
case 24: case 27: /* Float VCGT #0, Float VCLE #0 */ |
5604 |
tmp2 = tcg_const_i32(0);
|
5605 |
gen_helper_neon_cgt_f32(tmp, tmp, tmp2); |
5606 |
tcg_temp_free(tmp2); |
5607 |
if (op == 27) |
5608 |
tcg_gen_not_i32(tmp, tmp); |
5609 |
break;
|
5610 |
case 25: case 28: /* Float VCGE #0, Float VCLT #0 */ |
5611 |
tmp2 = tcg_const_i32(0);
|
5612 |
gen_helper_neon_cge_f32(tmp, tmp, tmp2); |
5613 |
tcg_temp_free(tmp2); |
5614 |
if (op == 28) |
5615 |
tcg_gen_not_i32(tmp, tmp); |
5616 |
break;
|
5617 |
case 26: /* Float VCEQ #0 */ |
5618 |
tmp2 = tcg_const_i32(0);
|
5619 |
gen_helper_neon_ceq_f32(tmp, tmp, tmp2); |
5620 |
tcg_temp_free(tmp2); |
5621 |
break;
|
5622 |
case 30: /* Float VABS */ |
5623 |
gen_vfp_abs(0);
|
5624 |
break;
|
5625 |
case 31: /* Float VNEG */ |
5626 |
gen_vfp_neg(0);
|
5627 |
break;
|
5628 |
case 32: /* VSWP */ |
5629 |
tmp2 = neon_load_reg(rd, pass); |
5630 |
neon_store_reg(rm, pass, tmp2); |
5631 |
break;
|
5632 |
case 33: /* VTRN */ |
5633 |
tmp2 = neon_load_reg(rd, pass); |
5634 |
switch (size) {
|
5635 |
case 0: gen_neon_trn_u8(tmp, tmp2); break; |
5636 |
case 1: gen_neon_trn_u16(tmp, tmp2); break; |
5637 |
case 2: abort(); |
5638 |
default: return 1; |
5639 |
} |
5640 |
neon_store_reg(rm, pass, tmp2); |
5641 |
break;
|
5642 |
case 56: /* Integer VRECPE */ |
5643 |
gen_helper_recpe_u32(tmp, tmp, cpu_env); |
5644 |
break;
|
5645 |
case 57: /* Integer VRSQRTE */ |
5646 |
gen_helper_rsqrte_u32(tmp, tmp, cpu_env); |
5647 |
break;
|
5648 |
case 58: /* Float VRECPE */ |
5649 |
gen_helper_recpe_f32(cpu_F0s, cpu_F0s, cpu_env); |
5650 |
break;
|
5651 |
case 59: /* Float VRSQRTE */ |
5652 |
gen_helper_rsqrte_f32(cpu_F0s, cpu_F0s, cpu_env); |
5653 |
break;
|
5654 |
case 60: /* VCVT.F32.S32 */ |
5655 |
gen_vfp_tosiz(0);
|
5656 |
break;
|
5657 |
case 61: /* VCVT.F32.U32 */ |
5658 |
gen_vfp_touiz(0);
|
5659 |
break;
|
5660 |
case 62: /* VCVT.S32.F32 */ |
5661 |
gen_vfp_sito(0);
|
5662 |
break;
|
5663 |
case 63: /* VCVT.U32.F32 */ |
5664 |
gen_vfp_uito(0);
|
5665 |
break;
|
5666 |
default:
|
5667 |
/* Reserved: 21, 29, 39-56 */
|
5668 |
return 1; |
5669 |
} |
5670 |
if (op == 30 || op == 31 || op >= 58) { |
5671 |
tcg_gen_st_f32(cpu_F0s, cpu_env, |
5672 |
neon_reg_offset(rd, pass)); |
5673 |
} else {
|
5674 |
neon_store_reg(rd, pass, tmp); |
5675 |
} |
5676 |
} |
5677 |
break;
|
5678 |
} |
5679 |
} else if ((insn & (1 << 10)) == 0) { |
5680 |
/* VTBL, VTBX. */
|
5681 |
n = ((insn >> 5) & 0x18) + 8; |
5682 |
if (insn & (1 << 6)) { |
5683 |
tmp = neon_load_reg(rd, 0);
|
5684 |
} else {
|
5685 |
tmp = new_tmp(); |
5686 |
tcg_gen_movi_i32(tmp, 0);
|
5687 |
} |
5688 |
tmp2 = neon_load_reg(rm, 0);
|
5689 |
tmp4 = tcg_const_i32(rn); |
5690 |
tmp5 = tcg_const_i32(n); |
5691 |
gen_helper_neon_tbl(tmp2, tmp2, tmp, tmp4, tmp5); |
5692 |
dead_tmp(tmp); |
5693 |
if (insn & (1 << 6)) { |
5694 |
tmp = neon_load_reg(rd, 1);
|
5695 |
} else {
|
5696 |
tmp = new_tmp(); |
5697 |
tcg_gen_movi_i32(tmp, 0);
|
5698 |
} |
5699 |
tmp3 = neon_load_reg(rm, 1);
|
5700 |
gen_helper_neon_tbl(tmp3, tmp3, tmp, tmp4, tmp5); |
5701 |
tcg_temp_free_i32(tmp5); |
5702 |
tcg_temp_free_i32(tmp4); |
5703 |
neon_store_reg(rd, 0, tmp2);
|
5704 |
neon_store_reg(rd, 1, tmp3);
|
5705 |
dead_tmp(tmp); |
5706 |
} else if ((insn & 0x380) == 0) { |
5707 |
/* VDUP */
|
5708 |
if (insn & (1 << 19)) { |
5709 |
tmp = neon_load_reg(rm, 1);
|
5710 |
} else {
|
5711 |
tmp = neon_load_reg(rm, 0);
|
5712 |
} |
5713 |
if (insn & (1 << 16)) { |
5714 |
gen_neon_dup_u8(tmp, ((insn >> 17) & 3) * 8); |
5715 |
} else if (insn & (1 << 17)) { |
5716 |
if ((insn >> 18) & 1) |
5717 |
gen_neon_dup_high16(tmp); |
5718 |
else
|
5719 |
gen_neon_dup_low16(tmp); |
5720 |
} |
5721 |
for (pass = 0; pass < (q ? 4 : 2); pass++) { |
5722 |
tmp2 = new_tmp(); |
5723 |
tcg_gen_mov_i32(tmp2, tmp); |
5724 |
neon_store_reg(rd, pass, tmp2); |
5725 |
} |
5726 |
dead_tmp(tmp); |
5727 |
} else {
|
5728 |
return 1; |
5729 |
} |
5730 |
} |
5731 |
} |
5732 |
return 0; |
5733 |
} |
5734 |
|
5735 |
static int disas_cp14_read(CPUState * env, DisasContext *s, uint32_t insn) |
5736 |
{ |
5737 |
int crn = (insn >> 16) & 0xf; |
5738 |
int crm = insn & 0xf; |
5739 |
int op1 = (insn >> 21) & 7; |
5740 |
int op2 = (insn >> 5) & 7; |
5741 |
int rt = (insn >> 12) & 0xf; |
5742 |
TCGv tmp; |
5743 |
|
5744 |
if (arm_feature(env, ARM_FEATURE_THUMB2EE)) {
|
5745 |
if (op1 == 6 && crn == 0 && crm == 0 && op2 == 0) { |
5746 |
/* TEECR */
|
5747 |
if (IS_USER(s))
|
5748 |
return 1; |
5749 |
tmp = load_cpu_field(teecr); |
5750 |
store_reg(s, rt, tmp); |
5751 |
return 0; |
5752 |
} |
5753 |
if (op1 == 6 && crn == 1 && crm == 0 && op2 == 0) { |
5754 |
/* TEEHBR */
|
5755 |
if (IS_USER(s) && (env->teecr & 1)) |
5756 |
return 1; |
5757 |
tmp = load_cpu_field(teehbr); |
5758 |
store_reg(s, rt, tmp); |
5759 |
return 0; |
5760 |
} |
5761 |
} |
5762 |
fprintf(stderr, "Unknown cp14 read op1:%d crn:%d crm:%d op2:%d\n",
|
5763 |
op1, crn, crm, op2); |
5764 |
return 1; |
5765 |
} |
5766 |
|
5767 |
static int disas_cp14_write(CPUState * env, DisasContext *s, uint32_t insn) |
5768 |
{ |
5769 |
int crn = (insn >> 16) & 0xf; |
5770 |
int crm = insn & 0xf; |
5771 |
int op1 = (insn >> 21) & 7; |
5772 |
int op2 = (insn >> 5) & 7; |
5773 |
int rt = (insn >> 12) & 0xf; |
5774 |
TCGv tmp; |
5775 |
|
5776 |
if (arm_feature(env, ARM_FEATURE_THUMB2EE)) {
|
5777 |
if (op1 == 6 && crn == 0 && crm == 0 && op2 == 0) { |
5778 |
/* TEECR */
|
5779 |
if (IS_USER(s))
|
5780 |
return 1; |
5781 |
tmp = load_reg(s, rt); |
5782 |
gen_helper_set_teecr(cpu_env, tmp); |
5783 |
dead_tmp(tmp); |
5784 |
return 0; |
5785 |
} |
5786 |
if (op1 == 6 && crn == 1 && crm == 0 && op2 == 0) { |
5787 |
/* TEEHBR */
|
5788 |
if (IS_USER(s) && (env->teecr & 1)) |
5789 |
return 1; |
5790 |
tmp = load_reg(s, rt); |
5791 |
store_cpu_field(tmp, teehbr); |
5792 |
return 0; |
5793 |
} |
5794 |
} |
5795 |
fprintf(stderr, "Unknown cp14 write op1:%d crn:%d crm:%d op2:%d\n",
|
5796 |
op1, crn, crm, op2); |
5797 |
return 1; |
5798 |
} |
5799 |
|
5800 |
static int disas_coproc_insn(CPUState * env, DisasContext *s, uint32_t insn) |
5801 |
{ |
5802 |
int cpnum;
|
5803 |
|
5804 |
cpnum = (insn >> 8) & 0xf; |
5805 |
if (arm_feature(env, ARM_FEATURE_XSCALE)
|
5806 |
&& ((env->cp15.c15_cpar ^ 0x3fff) & (1 << cpnum))) |
5807 |
return 1; |
5808 |
|
5809 |
switch (cpnum) {
|
5810 |
case 0: |
5811 |
case 1: |
5812 |
if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
|
5813 |
return disas_iwmmxt_insn(env, s, insn);
|
5814 |
} else if (arm_feature(env, ARM_FEATURE_XSCALE)) { |
5815 |
return disas_dsp_insn(env, s, insn);
|
5816 |
} |
5817 |
return 1; |
5818 |
case 10: |
5819 |
case 11: |
5820 |
return disas_vfp_insn (env, s, insn);
|
5821 |
case 14: |
5822 |
/* Coprocessors 7-15 are architecturally reserved by ARM.
|
5823 |
Unfortunately Intel decided to ignore this. */
|
5824 |
if (arm_feature(env, ARM_FEATURE_XSCALE))
|
5825 |
goto board;
|
5826 |
if (insn & (1 << 20)) |
5827 |
return disas_cp14_read(env, s, insn);
|
5828 |
else
|
5829 |
return disas_cp14_write(env, s, insn);
|
5830 |
case 15: |
5831 |
return disas_cp15_insn (env, s, insn);
|
5832 |
default:
|
5833 |
board:
|
5834 |
/* Unknown coprocessor. See if the board has hooked it. */
|
5835 |
return disas_cp_insn (env, s, insn);
|
5836 |
} |
5837 |
} |
5838 |
|
5839 |
|
5840 |
/* Store a 64-bit value to a register pair. Clobbers val. */
|
5841 |
static void gen_storeq_reg(DisasContext *s, int rlow, int rhigh, TCGv_i64 val) |
5842 |
{ |
5843 |
TCGv tmp; |
5844 |
tmp = new_tmp(); |
5845 |
tcg_gen_trunc_i64_i32(tmp, val); |
5846 |
store_reg(s, rlow, tmp); |
5847 |
tmp = new_tmp(); |
5848 |
tcg_gen_shri_i64(val, val, 32);
|
5849 |
tcg_gen_trunc_i64_i32(tmp, val); |
5850 |
store_reg(s, rhigh, tmp); |
5851 |
} |
5852 |
|
5853 |
/* load a 32-bit value from a register and perform a 64-bit accumulate. */
|
5854 |
static void gen_addq_lo(DisasContext *s, TCGv_i64 val, int rlow) |
5855 |
{ |
5856 |
TCGv_i64 tmp; |
5857 |
TCGv tmp2; |
5858 |
|
5859 |
/* Load value and extend to 64 bits. */
|
5860 |
tmp = tcg_temp_new_i64(); |
5861 |
tmp2 = load_reg(s, rlow); |
5862 |
tcg_gen_extu_i32_i64(tmp, tmp2); |
5863 |
dead_tmp(tmp2); |
5864 |
tcg_gen_add_i64(val, val, tmp); |
5865 |
tcg_temp_free_i64(tmp); |
5866 |
} |
5867 |
|
5868 |
/* load and add a 64-bit value from a register pair. */
|
5869 |
static void gen_addq(DisasContext *s, TCGv_i64 val, int rlow, int rhigh) |
5870 |
{ |
5871 |
TCGv_i64 tmp; |
5872 |
TCGv tmpl; |
5873 |
TCGv tmph; |
5874 |
|
5875 |
/* Load 64-bit value rd:rn. */
|
5876 |
tmpl = load_reg(s, rlow); |
5877 |
tmph = load_reg(s, rhigh); |
5878 |
tmp = tcg_temp_new_i64(); |
5879 |
tcg_gen_concat_i32_i64(tmp, tmpl, tmph); |
5880 |
dead_tmp(tmpl); |
5881 |
dead_tmp(tmph); |
5882 |
tcg_gen_add_i64(val, val, tmp); |
5883 |
tcg_temp_free_i64(tmp); |
5884 |
} |
5885 |
|
5886 |
/* Set N and Z flags from a 64-bit value. */
|
5887 |
static void gen_logicq_cc(TCGv_i64 val) |
5888 |
{ |
5889 |
TCGv tmp = new_tmp(); |
5890 |
gen_helper_logicq_cc(tmp, val); |
5891 |
gen_logic_CC(tmp); |
5892 |
dead_tmp(tmp); |
5893 |
} |
5894 |
|
5895 |
/* Load/Store exclusive instructions are implemented by remembering
|
5896 |
the value/address loaded, and seeing if these are the same
|
5897 |
when the store is performed. This should be is sufficient to implement
|
5898 |
the architecturally mandated semantics, and avoids having to monitor
|
5899 |
regular stores.
|
5900 |
|
5901 |
In system emulation mode only one CPU will be running at once, so
|
5902 |
this sequence is effectively atomic. In user emulation mode we
|
5903 |
throw an exception and handle the atomic operation elsewhere. */
|
5904 |
static void gen_load_exclusive(DisasContext *s, int rt, int rt2, |
5905 |
TCGv addr, int size)
|
5906 |
{ |
5907 |
TCGv tmp; |
5908 |
|
5909 |
switch (size) {
|
5910 |
case 0: |
5911 |
tmp = gen_ld8u(addr, IS_USER(s)); |
5912 |
break;
|
5913 |
case 1: |
5914 |
tmp = gen_ld16u(addr, IS_USER(s)); |
5915 |
break;
|
5916 |
case 2: |
5917 |
case 3: |
5918 |
tmp = gen_ld32(addr, IS_USER(s)); |
5919 |
break;
|
5920 |
default:
|
5921 |
abort(); |
5922 |
} |
5923 |
tcg_gen_mov_i32(cpu_exclusive_val, tmp); |
5924 |
store_reg(s, rt, tmp); |
5925 |
if (size == 3) { |
5926 |
tcg_gen_addi_i32(addr, addr, 4);
|
5927 |
tmp = gen_ld32(addr, IS_USER(s)); |
5928 |
tcg_gen_mov_i32(cpu_exclusive_high, tmp); |
5929 |
store_reg(s, rt2, tmp); |
5930 |
} |
5931 |
tcg_gen_mov_i32(cpu_exclusive_addr, addr); |
5932 |
} |
5933 |
|
5934 |
static void gen_clrex(DisasContext *s) |
5935 |
{ |
5936 |
tcg_gen_movi_i32(cpu_exclusive_addr, -1);
|
5937 |
} |
5938 |
|
5939 |
#ifdef CONFIG_USER_ONLY
|
5940 |
static void gen_store_exclusive(DisasContext *s, int rd, int rt, int rt2, |
5941 |
TCGv addr, int size)
|
5942 |
{ |
5943 |
tcg_gen_mov_i32(cpu_exclusive_test, addr); |
5944 |
tcg_gen_movi_i32(cpu_exclusive_info, |
5945 |
size | (rd << 4) | (rt << 8) | (rt2 << 12)); |
5946 |
gen_set_condexec(s); |
5947 |
gen_set_pc_im(s->pc - 4);
|
5948 |
gen_exception(EXCP_STREX); |
5949 |
s->is_jmp = DISAS_JUMP; |
5950 |
} |
5951 |
#else
|
5952 |
static void gen_store_exclusive(DisasContext *s, int rd, int rt, int rt2, |
5953 |
TCGv addr, int size)
|
5954 |
{ |
5955 |
TCGv tmp; |
5956 |
int done_label;
|
5957 |
int fail_label;
|
5958 |
|
5959 |
/* if (env->exclusive_addr == addr && env->exclusive_val == [addr]) {
|
5960 |
[addr] = {Rt};
|
5961 |
{Rd} = 0;
|
5962 |
} else {
|
5963 |
{Rd} = 1;
|
5964 |
} */
|
5965 |
fail_label = gen_new_label(); |
5966 |
done_label = gen_new_label(); |
5967 |
tcg_gen_brcond_i32(TCG_COND_NE, addr, cpu_exclusive_addr, fail_label); |
5968 |
switch (size) {
|
5969 |
case 0: |
5970 |
tmp = gen_ld8u(addr, IS_USER(s)); |
5971 |
break;
|
5972 |
case 1: |
5973 |
tmp = gen_ld16u(addr, IS_USER(s)); |
5974 |
break;
|
5975 |
case 2: |
5976 |
case 3: |
5977 |
tmp = gen_ld32(addr, IS_USER(s)); |
5978 |
break;
|
5979 |
default:
|
5980 |
abort(); |
5981 |
} |
5982 |
tcg_gen_brcond_i32(TCG_COND_NE, tmp, cpu_exclusive_val, fail_label); |
5983 |
dead_tmp(tmp); |
5984 |
if (size == 3) { |
5985 |
TCGv tmp2 = new_tmp(); |
5986 |
tcg_gen_addi_i32(tmp2, addr, 4);
|
5987 |
tmp = gen_ld32(addr, IS_USER(s)); |
5988 |
dead_tmp(tmp2); |
5989 |
tcg_gen_brcond_i32(TCG_COND_NE, tmp, cpu_exclusive_high, fail_label); |
5990 |
dead_tmp(tmp); |
5991 |
} |
5992 |
tmp = load_reg(s, rt); |
5993 |
switch (size) {
|
5994 |
case 0: |
5995 |
gen_st8(tmp, addr, IS_USER(s)); |
5996 |
break;
|
5997 |
case 1: |
5998 |
gen_st16(tmp, addr, IS_USER(s)); |
5999 |
break;
|
6000 |
case 2: |
6001 |
case 3: |
6002 |
gen_st32(tmp, addr, IS_USER(s)); |
6003 |
break;
|
6004 |
default:
|
6005 |
abort(); |
6006 |
} |
6007 |
if (size == 3) { |
6008 |
tcg_gen_addi_i32(addr, addr, 4);
|
6009 |
tmp = load_reg(s, rt2); |
6010 |
gen_st32(tmp, addr, IS_USER(s)); |
6011 |
} |
6012 |
tcg_gen_movi_i32(cpu_R[rd], 0);
|
6013 |
tcg_gen_br(done_label); |
6014 |
gen_set_label(fail_label); |
6015 |
tcg_gen_movi_i32(cpu_R[rd], 1);
|
6016 |
gen_set_label(done_label); |
6017 |
tcg_gen_movi_i32(cpu_exclusive_addr, -1);
|
6018 |
} |
6019 |
#endif
|
6020 |
|
6021 |
static void disas_arm_insn(CPUState * env, DisasContext *s) |
6022 |
{ |
6023 |
unsigned int cond, insn, val, op1, i, shift, rm, rs, rn, rd, sh; |
6024 |
TCGv tmp; |
6025 |
TCGv tmp2; |
6026 |
TCGv tmp3; |
6027 |
TCGv addr; |
6028 |
TCGv_i64 tmp64; |
6029 |
|
6030 |
insn = ldl_code(s->pc); |
6031 |
s->pc += 4;
|
6032 |
|
6033 |
/* M variants do not implement ARM mode. */
|
6034 |
if (IS_M(env))
|
6035 |
goto illegal_op;
|
6036 |
cond = insn >> 28;
|
6037 |
if (cond == 0xf){ |
6038 |
/* Unconditional instructions. */
|
6039 |
if (((insn >> 25) & 7) == 1) { |
6040 |
/* NEON Data processing. */
|
6041 |
if (!arm_feature(env, ARM_FEATURE_NEON))
|
6042 |
goto illegal_op;
|
6043 |
|
6044 |
if (disas_neon_data_insn(env, s, insn))
|
6045 |
goto illegal_op;
|
6046 |
return;
|
6047 |
} |
6048 |
if ((insn & 0x0f100000) == 0x04000000) { |
6049 |
/* NEON load/store. */
|
6050 |
if (!arm_feature(env, ARM_FEATURE_NEON))
|
6051 |
goto illegal_op;
|
6052 |
|
6053 |
if (disas_neon_ls_insn(env, s, insn))
|
6054 |
goto illegal_op;
|
6055 |
return;
|
6056 |
} |
6057 |
if ((insn & 0x0d70f000) == 0x0550f000) |
6058 |
return; /* PLD */ |
6059 |
else if ((insn & 0x0ffffdff) == 0x01010000) { |
6060 |
ARCH(6);
|
6061 |
/* setend */
|
6062 |
if (insn & (1 << 9)) { |
6063 |
/* BE8 mode not implemented. */
|
6064 |
goto illegal_op;
|
6065 |
} |
6066 |
return;
|
6067 |
} else if ((insn & 0x0fffff00) == 0x057ff000) { |
6068 |
switch ((insn >> 4) & 0xf) { |
6069 |
case 1: /* clrex */ |
6070 |
ARCH(6K);
|
6071 |
gen_clrex(s); |
6072 |
return;
|
6073 |
case 4: /* dsb */ |
6074 |
case 5: /* dmb */ |
6075 |
case 6: /* isb */ |
6076 |
ARCH(7);
|
6077 |
/* We don't emulate caches so these are a no-op. */
|
6078 |
return;
|
6079 |
default:
|
6080 |
goto illegal_op;
|
6081 |
} |
6082 |
} else if ((insn & 0x0e5fffe0) == 0x084d0500) { |
6083 |
/* srs */
|
6084 |
int32_t offset; |
6085 |
if (IS_USER(s))
|
6086 |
goto illegal_op;
|
6087 |
ARCH(6);
|
6088 |
op1 = (insn & 0x1f);
|
6089 |
if (op1 == (env->uncached_cpsr & CPSR_M)) {
|
6090 |
addr = load_reg(s, 13);
|
6091 |
} else {
|
6092 |
addr = new_tmp(); |
6093 |
tmp = tcg_const_i32(op1); |
6094 |
gen_helper_get_r13_banked(addr, cpu_env, tmp); |
6095 |
tcg_temp_free_i32(tmp); |
6096 |
} |
6097 |
i = (insn >> 23) & 3; |
6098 |
switch (i) {
|
6099 |
case 0: offset = -4; break; /* DA */ |
6100 |
case 1: offset = 0; break; /* IA */ |
6101 |
case 2: offset = -8; break; /* DB */ |
6102 |
case 3: offset = 4; break; /* IB */ |
6103 |
default: abort();
|
6104 |
} |
6105 |
if (offset)
|
6106 |
tcg_gen_addi_i32(addr, addr, offset); |
6107 |
tmp = load_reg(s, 14);
|
6108 |
gen_st32(tmp, addr, 0);
|
6109 |
tmp = load_cpu_field(spsr); |
6110 |
tcg_gen_addi_i32(addr, addr, 4);
|
6111 |
gen_st32(tmp, addr, 0);
|
6112 |
if (insn & (1 << 21)) { |
6113 |
/* Base writeback. */
|
6114 |
switch (i) {
|
6115 |
case 0: offset = -8; break; |
6116 |
case 1: offset = 4; break; |
6117 |
case 2: offset = -4; break; |
6118 |
case 3: offset = 0; break; |
6119 |
default: abort();
|
6120 |
} |
6121 |
if (offset)
|
6122 |
tcg_gen_addi_i32(addr, addr, offset); |
6123 |
if (op1 == (env->uncached_cpsr & CPSR_M)) {
|
6124 |
store_reg(s, 13, addr);
|
6125 |
} else {
|
6126 |
tmp = tcg_const_i32(op1); |
6127 |
gen_helper_set_r13_banked(cpu_env, tmp, addr); |
6128 |
tcg_temp_free_i32(tmp); |
6129 |
dead_tmp(addr); |
6130 |
} |
6131 |
} else {
|
6132 |
dead_tmp(addr); |
6133 |
} |
6134 |
} else if ((insn & 0x0e5fffe0) == 0x081d0a00) { |
6135 |
/* rfe */
|
6136 |
int32_t offset; |
6137 |
if (IS_USER(s))
|
6138 |
goto illegal_op;
|
6139 |
ARCH(6);
|
6140 |
rn = (insn >> 16) & 0xf; |
6141 |
addr = load_reg(s, rn); |
6142 |
i = (insn >> 23) & 3; |
6143 |
switch (i) {
|
6144 |
case 0: offset = -4; break; /* DA */ |
6145 |
case 1: offset = 0; break; /* IA */ |
6146 |
case 2: offset = -8; break; /* DB */ |
6147 |
case 3: offset = 4; break; /* IB */ |
6148 |
default: abort();
|
6149 |
} |
6150 |
if (offset)
|
6151 |
tcg_gen_addi_i32(addr, addr, offset); |
6152 |
/* Load PC into tmp and CPSR into tmp2. */
|
6153 |
tmp = gen_ld32(addr, 0);
|
6154 |
tcg_gen_addi_i32(addr, addr, 4);
|
6155 |
tmp2 = gen_ld32(addr, 0);
|
6156 |
if (insn & (1 << 21)) { |
6157 |
/* Base writeback. */
|
6158 |
switch (i) {
|
6159 |
case 0: offset = -8; break; |
6160 |
case 1: offset = 4; break; |
6161 |
case 2: offset = -4; break; |
6162 |
case 3: offset = 0; break; |
6163 |
default: abort();
|
6164 |
} |
6165 |
if (offset)
|
6166 |
tcg_gen_addi_i32(addr, addr, offset); |
6167 |
store_reg(s, rn, addr); |
6168 |
} else {
|
6169 |
dead_tmp(addr); |
6170 |
} |
6171 |
gen_rfe(s, tmp, tmp2); |
6172 |
return;
|
6173 |
} else if ((insn & 0x0e000000) == 0x0a000000) { |
6174 |
/* branch link and change to thumb (blx <offset>) */
|
6175 |
int32_t offset; |
6176 |
|
6177 |
val = (uint32_t)s->pc; |
6178 |
tmp = new_tmp(); |
6179 |
tcg_gen_movi_i32(tmp, val); |
6180 |
store_reg(s, 14, tmp);
|
6181 |
/* Sign-extend the 24-bit offset */
|
6182 |
offset = (((int32_t)insn) << 8) >> 8; |
6183 |
/* offset * 4 + bit24 * 2 + (thumb bit) */
|
6184 |
val += (offset << 2) | ((insn >> 23) & 2) | 1; |
6185 |
/* pipeline offset */
|
6186 |
val += 4;
|
6187 |
gen_bx_im(s, val); |
6188 |
return;
|
6189 |
} else if ((insn & 0x0e000f00) == 0x0c000100) { |
6190 |
if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
|
6191 |
/* iWMMXt register transfer. */
|
6192 |
if (env->cp15.c15_cpar & (1 << 1)) |
6193 |
if (!disas_iwmmxt_insn(env, s, insn))
|
6194 |
return;
|
6195 |
} |
6196 |
} else if ((insn & 0x0fe00000) == 0x0c400000) { |
6197 |
/* Coprocessor double register transfer. */
|
6198 |
} else if ((insn & 0x0f000010) == 0x0e000010) { |
6199 |
/* Additional coprocessor register transfer. */
|
6200 |
} else if ((insn & 0x0ff10020) == 0x01000000) { |
6201 |
uint32_t mask; |
6202 |
uint32_t val; |
6203 |
/* cps (privileged) */
|
6204 |
if (IS_USER(s))
|
6205 |
return;
|
6206 |
mask = val = 0;
|
6207 |
if (insn & (1 << 19)) { |
6208 |
if (insn & (1 << 8)) |
6209 |
mask |= CPSR_A; |
6210 |
if (insn & (1 << 7)) |
6211 |
mask |= CPSR_I; |
6212 |
if (insn & (1 << 6)) |
6213 |
mask |= CPSR_F; |
6214 |
if (insn & (1 << 18)) |
6215 |
val |= mask; |
6216 |
} |
6217 |
if (insn & (1 << 17)) { |
6218 |
mask |= CPSR_M; |
6219 |
val |= (insn & 0x1f);
|
6220 |
} |
6221 |
if (mask) {
|
6222 |
gen_set_psr_im(s, mask, 0, val);
|
6223 |
} |
6224 |
return;
|
6225 |
} |
6226 |
goto illegal_op;
|
6227 |
} |
6228 |
if (cond != 0xe) { |
6229 |
/* if not always execute, we generate a conditional jump to
|
6230 |
next instruction */
|
6231 |
s->condlabel = gen_new_label(); |
6232 |
gen_test_cc(cond ^ 1, s->condlabel);
|
6233 |
s->condjmp = 1;
|
6234 |
} |
6235 |
if ((insn & 0x0f900000) == 0x03000000) { |
6236 |
if ((insn & (1 << 21)) == 0) { |
6237 |
ARCH(6T2);
|
6238 |
rd = (insn >> 12) & 0xf; |
6239 |
val = ((insn >> 4) & 0xf000) | (insn & 0xfff); |
6240 |
if ((insn & (1 << 22)) == 0) { |
6241 |
/* MOVW */
|
6242 |
tmp = new_tmp(); |
6243 |
tcg_gen_movi_i32(tmp, val); |
6244 |
} else {
|
6245 |
/* MOVT */
|
6246 |
tmp = load_reg(s, rd); |
6247 |
tcg_gen_ext16u_i32(tmp, tmp); |
6248 |
tcg_gen_ori_i32(tmp, tmp, val << 16);
|
6249 |
} |
6250 |
store_reg(s, rd, tmp); |
6251 |
} else {
|
6252 |
if (((insn >> 12) & 0xf) != 0xf) |
6253 |
goto illegal_op;
|
6254 |
if (((insn >> 16) & 0xf) == 0) { |
6255 |
gen_nop_hint(s, insn & 0xff);
|
6256 |
} else {
|
6257 |
/* CPSR = immediate */
|
6258 |
val = insn & 0xff;
|
6259 |
shift = ((insn >> 8) & 0xf) * 2; |
6260 |
if (shift)
|
6261 |
val = (val >> shift) | (val << (32 - shift));
|
6262 |
i = ((insn & (1 << 22)) != 0); |
6263 |
if (gen_set_psr_im(s, msr_mask(env, s, (insn >> 16) & 0xf, i), i, val)) |
6264 |
goto illegal_op;
|
6265 |
} |
6266 |
} |
6267 |
} else if ((insn & 0x0f900000) == 0x01000000 |
6268 |
&& (insn & 0x00000090) != 0x00000090) { |
6269 |
/* miscellaneous instructions */
|
6270 |
op1 = (insn >> 21) & 3; |
6271 |
sh = (insn >> 4) & 0xf; |
6272 |
rm = insn & 0xf;
|
6273 |
switch (sh) {
|
6274 |
case 0x0: /* move program status register */ |
6275 |
if (op1 & 1) { |
6276 |
/* PSR = reg */
|
6277 |
tmp = load_reg(s, rm); |
6278 |
i = ((op1 & 2) != 0); |
6279 |
if (gen_set_psr(s, msr_mask(env, s, (insn >> 16) & 0xf, i), i, tmp)) |
6280 |
goto illegal_op;
|
6281 |
} else {
|
6282 |
/* reg = PSR */
|
6283 |
rd = (insn >> 12) & 0xf; |
6284 |
if (op1 & 2) { |
6285 |
if (IS_USER(s))
|
6286 |
goto illegal_op;
|
6287 |
tmp = load_cpu_field(spsr); |
6288 |
} else {
|
6289 |
tmp = new_tmp(); |
6290 |
gen_helper_cpsr_read(tmp); |
6291 |
} |
6292 |
store_reg(s, rd, tmp); |
6293 |
} |
6294 |
break;
|
6295 |
case 0x1: |
6296 |
if (op1 == 1) { |
6297 |
/* branch/exchange thumb (bx). */
|
6298 |
tmp = load_reg(s, rm); |
6299 |
gen_bx(s, tmp); |
6300 |
} else if (op1 == 3) { |
6301 |
/* clz */
|
6302 |
rd = (insn >> 12) & 0xf; |
6303 |
tmp = load_reg(s, rm); |
6304 |
gen_helper_clz(tmp, tmp); |
6305 |
store_reg(s, rd, tmp); |
6306 |
} else {
|
6307 |
goto illegal_op;
|
6308 |
} |
6309 |
break;
|
6310 |
case 0x2: |
6311 |
if (op1 == 1) { |
6312 |
ARCH(5J); /* bxj */ |
6313 |
/* Trivial implementation equivalent to bx. */
|
6314 |
tmp = load_reg(s, rm); |
6315 |
gen_bx(s, tmp); |
6316 |
} else {
|
6317 |
goto illegal_op;
|
6318 |
} |
6319 |
break;
|
6320 |
case 0x3: |
6321 |
if (op1 != 1) |
6322 |
goto illegal_op;
|
6323 |
|
6324 |
/* branch link/exchange thumb (blx) */
|
6325 |
tmp = load_reg(s, rm); |
6326 |
tmp2 = new_tmp(); |
6327 |
tcg_gen_movi_i32(tmp2, s->pc); |
6328 |
store_reg(s, 14, tmp2);
|
6329 |
gen_bx(s, tmp); |
6330 |
break;
|
6331 |
case 0x5: /* saturating add/subtract */ |
6332 |
rd = (insn >> 12) & 0xf; |
6333 |
rn = (insn >> 16) & 0xf; |
6334 |
tmp = load_reg(s, rm); |
6335 |
tmp2 = load_reg(s, rn); |
6336 |
if (op1 & 2) |
6337 |
gen_helper_double_saturate(tmp2, tmp2); |
6338 |
if (op1 & 1) |
6339 |
gen_helper_sub_saturate(tmp, tmp, tmp2); |
6340 |
else
|
6341 |
gen_helper_add_saturate(tmp, tmp, tmp2); |
6342 |
dead_tmp(tmp2); |
6343 |
store_reg(s, rd, tmp); |
6344 |
break;
|
6345 |
case 7: /* bkpt */ |
6346 |
gen_set_condexec(s); |
6347 |
gen_set_pc_im(s->pc - 4);
|
6348 |
gen_exception(EXCP_BKPT); |
6349 |
s->is_jmp = DISAS_JUMP; |
6350 |
break;
|
6351 |
case 0x8: /* signed multiply */ |
6352 |
case 0xa: |
6353 |
case 0xc: |
6354 |
case 0xe: |
6355 |
rs = (insn >> 8) & 0xf; |
6356 |
rn = (insn >> 12) & 0xf; |
6357 |
rd = (insn >> 16) & 0xf; |
6358 |
if (op1 == 1) { |
6359 |
/* (32 * 16) >> 16 */
|
6360 |
tmp = load_reg(s, rm); |
6361 |
tmp2 = load_reg(s, rs); |
6362 |
if (sh & 4) |
6363 |
tcg_gen_sari_i32(tmp2, tmp2, 16);
|
6364 |
else
|
6365 |
gen_sxth(tmp2); |
6366 |
tmp64 = gen_muls_i64_i32(tmp, tmp2); |
6367 |
tcg_gen_shri_i64(tmp64, tmp64, 16);
|
6368 |
tmp = new_tmp(); |
6369 |
tcg_gen_trunc_i64_i32(tmp, tmp64); |
6370 |
tcg_temp_free_i64(tmp64); |
6371 |
if ((sh & 2) == 0) { |
6372 |
tmp2 = load_reg(s, rn); |
6373 |
gen_helper_add_setq(tmp, tmp, tmp2); |
6374 |
dead_tmp(tmp2); |
6375 |
} |
6376 |
store_reg(s, rd, tmp); |
6377 |
} else {
|
6378 |
/* 16 * 16 */
|
6379 |
tmp = load_reg(s, rm); |
6380 |
tmp2 = load_reg(s, rs); |
6381 |
gen_mulxy(tmp, tmp2, sh & 2, sh & 4); |
6382 |
dead_tmp(tmp2); |
6383 |
if (op1 == 2) { |
6384 |
tmp64 = tcg_temp_new_i64(); |
6385 |
tcg_gen_ext_i32_i64(tmp64, tmp); |
6386 |
dead_tmp(tmp); |
6387 |
gen_addq(s, tmp64, rn, rd); |
6388 |
gen_storeq_reg(s, rn, rd, tmp64); |
6389 |
tcg_temp_free_i64(tmp64); |
6390 |
} else {
|
6391 |
if (op1 == 0) { |
6392 |
tmp2 = load_reg(s, rn); |
6393 |
gen_helper_add_setq(tmp, tmp, tmp2); |
6394 |
dead_tmp(tmp2); |
6395 |
} |
6396 |
store_reg(s, rd, tmp); |
6397 |
} |
6398 |
} |
6399 |
break;
|
6400 |
default:
|
6401 |
goto illegal_op;
|
6402 |
} |
6403 |
} else if (((insn & 0x0e000000) == 0 && |
6404 |
(insn & 0x00000090) != 0x90) || |
6405 |
((insn & 0x0e000000) == (1 << 25))) { |
6406 |
int set_cc, logic_cc, shiftop;
|
6407 |
|
6408 |
op1 = (insn >> 21) & 0xf; |
6409 |
set_cc = (insn >> 20) & 1; |
6410 |
logic_cc = table_logic_cc[op1] & set_cc; |
6411 |
|
6412 |
/* data processing instruction */
|
6413 |
if (insn & (1 << 25)) { |
6414 |
/* immediate operand */
|
6415 |
val = insn & 0xff;
|
6416 |
shift = ((insn >> 8) & 0xf) * 2; |
6417 |
if (shift) {
|
6418 |
val = (val >> shift) | (val << (32 - shift));
|
6419 |
} |
6420 |
tmp2 = new_tmp(); |
6421 |
tcg_gen_movi_i32(tmp2, val); |
6422 |
if (logic_cc && shift) {
|
6423 |
gen_set_CF_bit31(tmp2); |
6424 |
} |
6425 |
} else {
|
6426 |
/* register */
|
6427 |
rm = (insn) & 0xf;
|
6428 |
tmp2 = load_reg(s, rm); |
6429 |
shiftop = (insn >> 5) & 3; |
6430 |
if (!(insn & (1 << 4))) { |
6431 |
shift = (insn >> 7) & 0x1f; |
6432 |
gen_arm_shift_im(tmp2, shiftop, shift, logic_cc); |
6433 |
} else {
|
6434 |
rs = (insn >> 8) & 0xf; |
6435 |
tmp = load_reg(s, rs); |
6436 |
gen_arm_shift_reg(tmp2, shiftop, tmp, logic_cc); |
6437 |
} |
6438 |
} |
6439 |
if (op1 != 0x0f && op1 != 0x0d) { |
6440 |
rn = (insn >> 16) & 0xf; |
6441 |
tmp = load_reg(s, rn); |
6442 |
} else {
|
6443 |
TCGV_UNUSED(tmp); |
6444 |
} |
6445 |
rd = (insn >> 12) & 0xf; |
6446 |
switch(op1) {
|
6447 |
case 0x00: |
6448 |
tcg_gen_and_i32(tmp, tmp, tmp2); |
6449 |
if (logic_cc) {
|
6450 |
gen_logic_CC(tmp); |
6451 |
} |
6452 |
store_reg_bx(env, s, rd, tmp); |
6453 |
break;
|
6454 |
case 0x01: |
6455 |
tcg_gen_xor_i32(tmp, tmp, tmp2); |
6456 |
if (logic_cc) {
|
6457 |
gen_logic_CC(tmp); |
6458 |
} |
6459 |
store_reg_bx(env, s, rd, tmp); |
6460 |
break;
|
6461 |
case 0x02: |
6462 |
if (set_cc && rd == 15) { |
6463 |
/* SUBS r15, ... is used for exception return. */
|
6464 |
if (IS_USER(s)) {
|
6465 |
goto illegal_op;
|
6466 |
} |
6467 |
gen_helper_sub_cc(tmp, tmp, tmp2); |
6468 |
gen_exception_return(s, tmp); |
6469 |
} else {
|
6470 |
if (set_cc) {
|
6471 |
gen_helper_sub_cc(tmp, tmp, tmp2); |
6472 |
} else {
|
6473 |
tcg_gen_sub_i32(tmp, tmp, tmp2); |
6474 |
} |
6475 |
store_reg_bx(env, s, rd, tmp); |
6476 |
} |
6477 |
break;
|
6478 |
case 0x03: |
6479 |
if (set_cc) {
|
6480 |
gen_helper_sub_cc(tmp, tmp2, tmp); |
6481 |
} else {
|
6482 |
tcg_gen_sub_i32(tmp, tmp2, tmp); |
6483 |
} |
6484 |
store_reg_bx(env, s, rd, tmp); |
6485 |
break;
|
6486 |
case 0x04: |
6487 |
if (set_cc) {
|
6488 |
gen_helper_add_cc(tmp, tmp, tmp2); |
6489 |
} else {
|
6490 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
6491 |
} |
6492 |
store_reg_bx(env, s, rd, tmp); |
6493 |
break;
|
6494 |
case 0x05: |
6495 |
if (set_cc) {
|
6496 |
gen_helper_adc_cc(tmp, tmp, tmp2); |
6497 |
} else {
|
6498 |
gen_add_carry(tmp, tmp, tmp2); |
6499 |
} |
6500 |
store_reg_bx(env, s, rd, tmp); |
6501 |
break;
|
6502 |
case 0x06: |
6503 |
if (set_cc) {
|
6504 |
gen_helper_sbc_cc(tmp, tmp, tmp2); |
6505 |
} else {
|
6506 |
gen_sub_carry(tmp, tmp, tmp2); |
6507 |
} |
6508 |
store_reg_bx(env, s, rd, tmp); |
6509 |
break;
|
6510 |
case 0x07: |
6511 |
if (set_cc) {
|
6512 |
gen_helper_sbc_cc(tmp, tmp2, tmp); |
6513 |
} else {
|
6514 |
gen_sub_carry(tmp, tmp2, tmp); |
6515 |
} |
6516 |
store_reg_bx(env, s, rd, tmp); |
6517 |
break;
|
6518 |
case 0x08: |
6519 |
if (set_cc) {
|
6520 |
tcg_gen_and_i32(tmp, tmp, tmp2); |
6521 |
gen_logic_CC(tmp); |
6522 |
} |
6523 |
dead_tmp(tmp); |
6524 |
break;
|
6525 |
case 0x09: |
6526 |
if (set_cc) {
|
6527 |
tcg_gen_xor_i32(tmp, tmp, tmp2); |
6528 |
gen_logic_CC(tmp); |
6529 |
} |
6530 |
dead_tmp(tmp); |
6531 |
break;
|
6532 |
case 0x0a: |
6533 |
if (set_cc) {
|
6534 |
gen_helper_sub_cc(tmp, tmp, tmp2); |
6535 |
} |
6536 |
dead_tmp(tmp); |
6537 |
break;
|
6538 |
case 0x0b: |
6539 |
if (set_cc) {
|
6540 |
gen_helper_add_cc(tmp, tmp, tmp2); |
6541 |
} |
6542 |
dead_tmp(tmp); |
6543 |
break;
|
6544 |
case 0x0c: |
6545 |
tcg_gen_or_i32(tmp, tmp, tmp2); |
6546 |
if (logic_cc) {
|
6547 |
gen_logic_CC(tmp); |
6548 |
} |
6549 |
store_reg_bx(env, s, rd, tmp); |
6550 |
break;
|
6551 |
case 0x0d: |
6552 |
if (logic_cc && rd == 15) { |
6553 |
/* MOVS r15, ... is used for exception return. */
|
6554 |
if (IS_USER(s)) {
|
6555 |
goto illegal_op;
|
6556 |
} |
6557 |
gen_exception_return(s, tmp2); |
6558 |
} else {
|
6559 |
if (logic_cc) {
|
6560 |
gen_logic_CC(tmp2); |
6561 |
} |
6562 |
store_reg_bx(env, s, rd, tmp2); |
6563 |
} |
6564 |
break;
|
6565 |
case 0x0e: |
6566 |
tcg_gen_andc_i32(tmp, tmp, tmp2); |
6567 |
if (logic_cc) {
|
6568 |
gen_logic_CC(tmp); |
6569 |
} |
6570 |
store_reg_bx(env, s, rd, tmp); |
6571 |
break;
|
6572 |
default:
|
6573 |
case 0x0f: |
6574 |
tcg_gen_not_i32(tmp2, tmp2); |
6575 |
if (logic_cc) {
|
6576 |
gen_logic_CC(tmp2); |
6577 |
} |
6578 |
store_reg_bx(env, s, rd, tmp2); |
6579 |
break;
|
6580 |
} |
6581 |
if (op1 != 0x0f && op1 != 0x0d) { |
6582 |
dead_tmp(tmp2); |
6583 |
} |
6584 |
} else {
|
6585 |
/* other instructions */
|
6586 |
op1 = (insn >> 24) & 0xf; |
6587 |
switch(op1) {
|
6588 |
case 0x0: |
6589 |
case 0x1: |
6590 |
/* multiplies, extra load/stores */
|
6591 |
sh = (insn >> 5) & 3; |
6592 |
if (sh == 0) { |
6593 |
if (op1 == 0x0) { |
6594 |
rd = (insn >> 16) & 0xf; |
6595 |
rn = (insn >> 12) & 0xf; |
6596 |
rs = (insn >> 8) & 0xf; |
6597 |
rm = (insn) & 0xf;
|
6598 |
op1 = (insn >> 20) & 0xf; |
6599 |
switch (op1) {
|
6600 |
case 0: case 1: case 2: case 3: case 6: |
6601 |
/* 32 bit mul */
|
6602 |
tmp = load_reg(s, rs); |
6603 |
tmp2 = load_reg(s, rm); |
6604 |
tcg_gen_mul_i32(tmp, tmp, tmp2); |
6605 |
dead_tmp(tmp2); |
6606 |
if (insn & (1 << 22)) { |
6607 |
/* Subtract (mls) */
|
6608 |
ARCH(6T2);
|
6609 |
tmp2 = load_reg(s, rn); |
6610 |
tcg_gen_sub_i32(tmp, tmp2, tmp); |
6611 |
dead_tmp(tmp2); |
6612 |
} else if (insn & (1 << 21)) { |
6613 |
/* Add */
|
6614 |
tmp2 = load_reg(s, rn); |
6615 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
6616 |
dead_tmp(tmp2); |
6617 |
} |
6618 |
if (insn & (1 << 20)) |
6619 |
gen_logic_CC(tmp); |
6620 |
store_reg(s, rd, tmp); |
6621 |
break;
|
6622 |
default:
|
6623 |
/* 64 bit mul */
|
6624 |
tmp = load_reg(s, rs); |
6625 |
tmp2 = load_reg(s, rm); |
6626 |
if (insn & (1 << 22)) |
6627 |
tmp64 = gen_muls_i64_i32(tmp, tmp2); |
6628 |
else
|
6629 |
tmp64 = gen_mulu_i64_i32(tmp, tmp2); |
6630 |
if (insn & (1 << 21)) /* mult accumulate */ |
6631 |
gen_addq(s, tmp64, rn, rd); |
6632 |
if (!(insn & (1 << 23))) { /* double accumulate */ |
6633 |
ARCH(6);
|
6634 |
gen_addq_lo(s, tmp64, rn); |
6635 |
gen_addq_lo(s, tmp64, rd); |
6636 |
} |
6637 |
if (insn & (1 << 20)) |
6638 |
gen_logicq_cc(tmp64); |
6639 |
gen_storeq_reg(s, rn, rd, tmp64); |
6640 |
tcg_temp_free_i64(tmp64); |
6641 |
break;
|
6642 |
} |
6643 |
} else {
|
6644 |
rn = (insn >> 16) & 0xf; |
6645 |
rd = (insn >> 12) & 0xf; |
6646 |
if (insn & (1 << 23)) { |
6647 |
/* load/store exclusive */
|
6648 |
op1 = (insn >> 21) & 0x3; |
6649 |
if (op1)
|
6650 |
ARCH(6K);
|
6651 |
else
|
6652 |
ARCH(6);
|
6653 |
addr = tcg_temp_local_new_i32(); |
6654 |
load_reg_var(s, addr, rn); |
6655 |
if (insn & (1 << 20)) { |
6656 |
switch (op1) {
|
6657 |
case 0: /* ldrex */ |
6658 |
gen_load_exclusive(s, rd, 15, addr, 2); |
6659 |
break;
|
6660 |
case 1: /* ldrexd */ |
6661 |
gen_load_exclusive(s, rd, rd + 1, addr, 3); |
6662 |
break;
|
6663 |
case 2: /* ldrexb */ |
6664 |
gen_load_exclusive(s, rd, 15, addr, 0); |
6665 |
break;
|
6666 |
case 3: /* ldrexh */ |
6667 |
gen_load_exclusive(s, rd, 15, addr, 1); |
6668 |
break;
|
6669 |
default:
|
6670 |
abort(); |
6671 |
} |
6672 |
} else {
|
6673 |
rm = insn & 0xf;
|
6674 |
switch (op1) {
|
6675 |
case 0: /* strex */ |
6676 |
gen_store_exclusive(s, rd, rm, 15, addr, 2); |
6677 |
break;
|
6678 |
case 1: /* strexd */ |
6679 |
gen_store_exclusive(s, rd, rm, rm + 1, addr, 3); |
6680 |
break;
|
6681 |
case 2: /* strexb */ |
6682 |
gen_store_exclusive(s, rd, rm, 15, addr, 0); |
6683 |
break;
|
6684 |
case 3: /* strexh */ |
6685 |
gen_store_exclusive(s, rd, rm, 15, addr, 1); |
6686 |
break;
|
6687 |
default:
|
6688 |
abort(); |
6689 |
} |
6690 |
} |
6691 |
tcg_temp_free(addr); |
6692 |
} else {
|
6693 |
/* SWP instruction */
|
6694 |
rm = (insn) & 0xf;
|
6695 |
|
6696 |
/* ??? This is not really atomic. However we know
|
6697 |
we never have multiple CPUs running in parallel,
|
6698 |
so it is good enough. */
|
6699 |
addr = load_reg(s, rn); |
6700 |
tmp = load_reg(s, rm); |
6701 |
if (insn & (1 << 22)) { |
6702 |
tmp2 = gen_ld8u(addr, IS_USER(s)); |
6703 |
gen_st8(tmp, addr, IS_USER(s)); |
6704 |
} else {
|
6705 |
tmp2 = gen_ld32(addr, IS_USER(s)); |
6706 |
gen_st32(tmp, addr, IS_USER(s)); |
6707 |
} |
6708 |
dead_tmp(addr); |
6709 |
store_reg(s, rd, tmp2); |
6710 |
} |
6711 |
} |
6712 |
} else {
|
6713 |
int address_offset;
|
6714 |
int load;
|
6715 |
/* Misc load/store */
|
6716 |
rn = (insn >> 16) & 0xf; |
6717 |
rd = (insn >> 12) & 0xf; |
6718 |
addr = load_reg(s, rn); |
6719 |
if (insn & (1 << 24)) |
6720 |
gen_add_datah_offset(s, insn, 0, addr);
|
6721 |
address_offset = 0;
|
6722 |
if (insn & (1 << 20)) { |
6723 |
/* load */
|
6724 |
switch(sh) {
|
6725 |
case 1: |
6726 |
tmp = gen_ld16u(addr, IS_USER(s)); |
6727 |
break;
|
6728 |
case 2: |
6729 |
tmp = gen_ld8s(addr, IS_USER(s)); |
6730 |
break;
|
6731 |
default:
|
6732 |
case 3: |
6733 |
tmp = gen_ld16s(addr, IS_USER(s)); |
6734 |
break;
|
6735 |
} |
6736 |
load = 1;
|
6737 |
} else if (sh & 2) { |
6738 |
/* doubleword */
|
6739 |
if (sh & 1) { |
6740 |
/* store */
|
6741 |
tmp = load_reg(s, rd); |
6742 |
gen_st32(tmp, addr, IS_USER(s)); |
6743 |
tcg_gen_addi_i32(addr, addr, 4);
|
6744 |
tmp = load_reg(s, rd + 1);
|
6745 |
gen_st32(tmp, addr, IS_USER(s)); |
6746 |
load = 0;
|
6747 |
} else {
|
6748 |
/* load */
|
6749 |
tmp = gen_ld32(addr, IS_USER(s)); |
6750 |
store_reg(s, rd, tmp); |
6751 |
tcg_gen_addi_i32(addr, addr, 4);
|
6752 |
tmp = gen_ld32(addr, IS_USER(s)); |
6753 |
rd++; |
6754 |
load = 1;
|
6755 |
} |
6756 |
address_offset = -4;
|
6757 |
} else {
|
6758 |
/* store */
|
6759 |
tmp = load_reg(s, rd); |
6760 |
gen_st16(tmp, addr, IS_USER(s)); |
6761 |
load = 0;
|
6762 |
} |
6763 |
/* Perform base writeback before the loaded value to
|
6764 |
ensure correct behavior with overlapping index registers.
|
6765 |
ldrd with base writeback is is undefined if the
|
6766 |
destination and index registers overlap. */
|
6767 |
if (!(insn & (1 << 24))) { |
6768 |
gen_add_datah_offset(s, insn, address_offset, addr); |
6769 |
store_reg(s, rn, addr); |
6770 |
} else if (insn & (1 << 21)) { |
6771 |
if (address_offset)
|
6772 |
tcg_gen_addi_i32(addr, addr, address_offset); |
6773 |
store_reg(s, rn, addr); |
6774 |
} else {
|
6775 |
dead_tmp(addr); |
6776 |
} |
6777 |
if (load) {
|
6778 |
/* Complete the load. */
|
6779 |
store_reg(s, rd, tmp); |
6780 |
} |
6781 |
} |
6782 |
break;
|
6783 |
case 0x4: |
6784 |
case 0x5: |
6785 |
goto do_ldst;
|
6786 |
case 0x6: |
6787 |
case 0x7: |
6788 |
if (insn & (1 << 4)) { |
6789 |
ARCH(6);
|
6790 |
/* Armv6 Media instructions. */
|
6791 |
rm = insn & 0xf;
|
6792 |
rn = (insn >> 16) & 0xf; |
6793 |
rd = (insn >> 12) & 0xf; |
6794 |
rs = (insn >> 8) & 0xf; |
6795 |
switch ((insn >> 23) & 3) { |
6796 |
case 0: /* Parallel add/subtract. */ |
6797 |
op1 = (insn >> 20) & 7; |
6798 |
tmp = load_reg(s, rn); |
6799 |
tmp2 = load_reg(s, rm); |
6800 |
sh = (insn >> 5) & 7; |
6801 |
if ((op1 & 3) == 0 || sh == 5 || sh == 6) |
6802 |
goto illegal_op;
|
6803 |
gen_arm_parallel_addsub(op1, sh, tmp, tmp2); |
6804 |
dead_tmp(tmp2); |
6805 |
store_reg(s, rd, tmp); |
6806 |
break;
|
6807 |
case 1: |
6808 |
if ((insn & 0x00700020) == 0) { |
6809 |
/* Halfword pack. */
|
6810 |
tmp = load_reg(s, rn); |
6811 |
tmp2 = load_reg(s, rm); |
6812 |
shift = (insn >> 7) & 0x1f; |
6813 |
if (insn & (1 << 6)) { |
6814 |
/* pkhtb */
|
6815 |
if (shift == 0) |
6816 |
shift = 31;
|
6817 |
tcg_gen_sari_i32(tmp2, tmp2, shift); |
6818 |
tcg_gen_andi_i32(tmp, tmp, 0xffff0000);
|
6819 |
tcg_gen_ext16u_i32(tmp2, tmp2); |
6820 |
} else {
|
6821 |
/* pkhbt */
|
6822 |
if (shift)
|
6823 |
tcg_gen_shli_i32(tmp2, tmp2, shift); |
6824 |
tcg_gen_ext16u_i32(tmp, tmp); |
6825 |
tcg_gen_andi_i32(tmp2, tmp2, 0xffff0000);
|
6826 |
} |
6827 |
tcg_gen_or_i32(tmp, tmp, tmp2); |
6828 |
dead_tmp(tmp2); |
6829 |
store_reg(s, rd, tmp); |
6830 |
} else if ((insn & 0x00200020) == 0x00200000) { |
6831 |
/* [us]sat */
|
6832 |
tmp = load_reg(s, rm); |
6833 |
shift = (insn >> 7) & 0x1f; |
6834 |
if (insn & (1 << 6)) { |
6835 |
if (shift == 0) |
6836 |
shift = 31;
|
6837 |
tcg_gen_sari_i32(tmp, tmp, shift); |
6838 |
} else {
|
6839 |
tcg_gen_shli_i32(tmp, tmp, shift); |
6840 |
} |
6841 |
sh = (insn >> 16) & 0x1f; |
6842 |
if (sh != 0) { |
6843 |
tmp2 = tcg_const_i32(sh); |
6844 |
if (insn & (1 << 22)) |
6845 |
gen_helper_usat(tmp, tmp, tmp2); |
6846 |
else
|
6847 |
gen_helper_ssat(tmp, tmp, tmp2); |
6848 |
tcg_temp_free_i32(tmp2); |
6849 |
} |
6850 |
store_reg(s, rd, tmp); |
6851 |
} else if ((insn & 0x00300fe0) == 0x00200f20) { |
6852 |
/* [us]sat16 */
|
6853 |
tmp = load_reg(s, rm); |
6854 |
sh = (insn >> 16) & 0x1f; |
6855 |
if (sh != 0) { |
6856 |
tmp2 = tcg_const_i32(sh); |
6857 |
if (insn & (1 << 22)) |
6858 |
gen_helper_usat16(tmp, tmp, tmp2); |
6859 |
else
|
6860 |
gen_helper_ssat16(tmp, tmp, tmp2); |
6861 |
tcg_temp_free_i32(tmp2); |
6862 |
} |
6863 |
store_reg(s, rd, tmp); |
6864 |
} else if ((insn & 0x00700fe0) == 0x00000fa0) { |
6865 |
/* Select bytes. */
|
6866 |
tmp = load_reg(s, rn); |
6867 |
tmp2 = load_reg(s, rm); |
6868 |
tmp3 = new_tmp(); |
6869 |
tcg_gen_ld_i32(tmp3, cpu_env, offsetof(CPUState, GE)); |
6870 |
gen_helper_sel_flags(tmp, tmp3, tmp, tmp2); |
6871 |
dead_tmp(tmp3); |
6872 |
dead_tmp(tmp2); |
6873 |
store_reg(s, rd, tmp); |
6874 |
} else if ((insn & 0x000003e0) == 0x00000060) { |
6875 |
tmp = load_reg(s, rm); |
6876 |
shift = (insn >> 10) & 3; |
6877 |
/* ??? In many cases it's not neccessary to do a
|
6878 |
rotate, a shift is sufficient. */
|
6879 |
if (shift != 0) |
6880 |
tcg_gen_rotri_i32(tmp, tmp, shift * 8);
|
6881 |
op1 = (insn >> 20) & 7; |
6882 |
switch (op1) {
|
6883 |
case 0: gen_sxtb16(tmp); break; |
6884 |
case 2: gen_sxtb(tmp); break; |
6885 |
case 3: gen_sxth(tmp); break; |
6886 |
case 4: gen_uxtb16(tmp); break; |
6887 |
case 6: gen_uxtb(tmp); break; |
6888 |
case 7: gen_uxth(tmp); break; |
6889 |
default: goto illegal_op; |
6890 |
} |
6891 |
if (rn != 15) { |
6892 |
tmp2 = load_reg(s, rn); |
6893 |
if ((op1 & 3) == 0) { |
6894 |
gen_add16(tmp, tmp2); |
6895 |
} else {
|
6896 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
6897 |
dead_tmp(tmp2); |
6898 |
} |
6899 |
} |
6900 |
store_reg(s, rd, tmp); |
6901 |
} else if ((insn & 0x003f0f60) == 0x003f0f20) { |
6902 |
/* rev */
|
6903 |
tmp = load_reg(s, rm); |
6904 |
if (insn & (1 << 22)) { |
6905 |
if (insn & (1 << 7)) { |
6906 |
gen_revsh(tmp); |
6907 |
} else {
|
6908 |
ARCH(6T2);
|
6909 |
gen_helper_rbit(tmp, tmp); |
6910 |
} |
6911 |
} else {
|
6912 |
if (insn & (1 << 7)) |
6913 |
gen_rev16(tmp); |
6914 |
else
|
6915 |
tcg_gen_bswap32_i32(tmp, tmp); |
6916 |
} |
6917 |
store_reg(s, rd, tmp); |
6918 |
} else {
|
6919 |
goto illegal_op;
|
6920 |
} |
6921 |
break;
|
6922 |
case 2: /* Multiplies (Type 3). */ |
6923 |
tmp = load_reg(s, rm); |
6924 |
tmp2 = load_reg(s, rs); |
6925 |
if (insn & (1 << 20)) { |
6926 |
/* Signed multiply most significant [accumulate]. */
|
6927 |
tmp64 = gen_muls_i64_i32(tmp, tmp2); |
6928 |
if (insn & (1 << 5)) |
6929 |
tcg_gen_addi_i64(tmp64, tmp64, 0x80000000u);
|
6930 |
tcg_gen_shri_i64(tmp64, tmp64, 32);
|
6931 |
tmp = new_tmp(); |
6932 |
tcg_gen_trunc_i64_i32(tmp, tmp64); |
6933 |
tcg_temp_free_i64(tmp64); |
6934 |
if (rd != 15) { |
6935 |
tmp2 = load_reg(s, rd); |
6936 |
if (insn & (1 << 6)) { |
6937 |
tcg_gen_sub_i32(tmp, tmp, tmp2); |
6938 |
} else {
|
6939 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
6940 |
} |
6941 |
dead_tmp(tmp2); |
6942 |
} |
6943 |
store_reg(s, rn, tmp); |
6944 |
} else {
|
6945 |
if (insn & (1 << 5)) |
6946 |
gen_swap_half(tmp2); |
6947 |
gen_smul_dual(tmp, tmp2); |
6948 |
/* This addition cannot overflow. */
|
6949 |
if (insn & (1 << 6)) { |
6950 |
tcg_gen_sub_i32(tmp, tmp, tmp2); |
6951 |
} else {
|
6952 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
6953 |
} |
6954 |
dead_tmp(tmp2); |
6955 |
if (insn & (1 << 22)) { |
6956 |
/* smlald, smlsld */
|
6957 |
tmp64 = tcg_temp_new_i64(); |
6958 |
tcg_gen_ext_i32_i64(tmp64, tmp); |
6959 |
dead_tmp(tmp); |
6960 |
gen_addq(s, tmp64, rd, rn); |
6961 |
gen_storeq_reg(s, rd, rn, tmp64); |
6962 |
tcg_temp_free_i64(tmp64); |
6963 |
} else {
|
6964 |
/* smuad, smusd, smlad, smlsd */
|
6965 |
if (rd != 15) |
6966 |
{ |
6967 |
tmp2 = load_reg(s, rd); |
6968 |
gen_helper_add_setq(tmp, tmp, tmp2); |
6969 |
dead_tmp(tmp2); |
6970 |
} |
6971 |
store_reg(s, rn, tmp); |
6972 |
} |
6973 |
} |
6974 |
break;
|
6975 |
case 3: |
6976 |
op1 = ((insn >> 17) & 0x38) | ((insn >> 5) & 7); |
6977 |
switch (op1) {
|
6978 |
case 0: /* Unsigned sum of absolute differences. */ |
6979 |
ARCH(6);
|
6980 |
tmp = load_reg(s, rm); |
6981 |
tmp2 = load_reg(s, rs); |
6982 |
gen_helper_usad8(tmp, tmp, tmp2); |
6983 |
dead_tmp(tmp2); |
6984 |
if (rd != 15) { |
6985 |
tmp2 = load_reg(s, rd); |
6986 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
6987 |
dead_tmp(tmp2); |
6988 |
} |
6989 |
store_reg(s, rn, tmp); |
6990 |
break;
|
6991 |
case 0x20: case 0x24: case 0x28: case 0x2c: |
6992 |
/* Bitfield insert/clear. */
|
6993 |
ARCH(6T2);
|
6994 |
shift = (insn >> 7) & 0x1f; |
6995 |
i = (insn >> 16) & 0x1f; |
6996 |
i = i + 1 - shift;
|
6997 |
if (rm == 15) { |
6998 |
tmp = new_tmp(); |
6999 |
tcg_gen_movi_i32(tmp, 0);
|
7000 |
} else {
|
7001 |
tmp = load_reg(s, rm); |
7002 |
} |
7003 |
if (i != 32) { |
7004 |
tmp2 = load_reg(s, rd); |
7005 |
gen_bfi(tmp, tmp2, tmp, shift, (1u << i) - 1); |
7006 |
dead_tmp(tmp2); |
7007 |
} |
7008 |
store_reg(s, rd, tmp); |
7009 |
break;
|
7010 |
case 0x12: case 0x16: case 0x1a: case 0x1e: /* sbfx */ |
7011 |
case 0x32: case 0x36: case 0x3a: case 0x3e: /* ubfx */ |
7012 |
ARCH(6T2);
|
7013 |
tmp = load_reg(s, rm); |
7014 |
shift = (insn >> 7) & 0x1f; |
7015 |
i = ((insn >> 16) & 0x1f) + 1; |
7016 |
if (shift + i > 32) |
7017 |
goto illegal_op;
|
7018 |
if (i < 32) { |
7019 |
if (op1 & 0x20) { |
7020 |
gen_ubfx(tmp, shift, (1u << i) - 1); |
7021 |
} else {
|
7022 |
gen_sbfx(tmp, shift, i); |
7023 |
} |
7024 |
} |
7025 |
store_reg(s, rd, tmp); |
7026 |
break;
|
7027 |
default:
|
7028 |
goto illegal_op;
|
7029 |
} |
7030 |
break;
|
7031 |
} |
7032 |
break;
|
7033 |
} |
7034 |
do_ldst:
|
7035 |
/* Check for undefined extension instructions
|
7036 |
* per the ARM Bible IE:
|
7037 |
* xxxx 0111 1111 xxxx xxxx xxxx 1111 xxxx
|
7038 |
*/
|
7039 |
sh = (0xf << 20) | (0xf << 4); |
7040 |
if (op1 == 0x7 && ((insn & sh) == sh)) |
7041 |
{ |
7042 |
goto illegal_op;
|
7043 |
} |
7044 |
/* load/store byte/word */
|
7045 |
rn = (insn >> 16) & 0xf; |
7046 |
rd = (insn >> 12) & 0xf; |
7047 |
tmp2 = load_reg(s, rn); |
7048 |
i = (IS_USER(s) || (insn & 0x01200000) == 0x00200000); |
7049 |
if (insn & (1 << 24)) |
7050 |
gen_add_data_offset(s, insn, tmp2); |
7051 |
if (insn & (1 << 20)) { |
7052 |
/* load */
|
7053 |
if (insn & (1 << 22)) { |
7054 |
tmp = gen_ld8u(tmp2, i); |
7055 |
} else {
|
7056 |
tmp = gen_ld32(tmp2, i); |
7057 |
} |
7058 |
} else {
|
7059 |
/* store */
|
7060 |
tmp = load_reg(s, rd); |
7061 |
if (insn & (1 << 22)) |
7062 |
gen_st8(tmp, tmp2, i); |
7063 |
else
|
7064 |
gen_st32(tmp, tmp2, i); |
7065 |
} |
7066 |
if (!(insn & (1 << 24))) { |
7067 |
gen_add_data_offset(s, insn, tmp2); |
7068 |
store_reg(s, rn, tmp2); |
7069 |
} else if (insn & (1 << 21)) { |
7070 |
store_reg(s, rn, tmp2); |
7071 |
} else {
|
7072 |
dead_tmp(tmp2); |
7073 |
} |
7074 |
if (insn & (1 << 20)) { |
7075 |
/* Complete the load. */
|
7076 |
if (rd == 15) |
7077 |
gen_bx(s, tmp); |
7078 |
else
|
7079 |
store_reg(s, rd, tmp); |
7080 |
} |
7081 |
break;
|
7082 |
case 0x08: |
7083 |
case 0x09: |
7084 |
{ |
7085 |
int j, n, user, loaded_base;
|
7086 |
TCGv loaded_var; |
7087 |
/* load/store multiple words */
|
7088 |
/* XXX: store correct base if write back */
|
7089 |
user = 0;
|
7090 |
if (insn & (1 << 22)) { |
7091 |
if (IS_USER(s))
|
7092 |
goto illegal_op; /* only usable in supervisor mode */ |
7093 |
|
7094 |
if ((insn & (1 << 15)) == 0) |
7095 |
user = 1;
|
7096 |
} |
7097 |
rn = (insn >> 16) & 0xf; |
7098 |
addr = load_reg(s, rn); |
7099 |
|
7100 |
/* compute total size */
|
7101 |
loaded_base = 0;
|
7102 |
TCGV_UNUSED(loaded_var); |
7103 |
n = 0;
|
7104 |
for(i=0;i<16;i++) { |
7105 |
if (insn & (1 << i)) |
7106 |
n++; |
7107 |
} |
7108 |
/* XXX: test invalid n == 0 case ? */
|
7109 |
if (insn & (1 << 23)) { |
7110 |
if (insn & (1 << 24)) { |
7111 |
/* pre increment */
|
7112 |
tcg_gen_addi_i32(addr, addr, 4);
|
7113 |
} else {
|
7114 |
/* post increment */
|
7115 |
} |
7116 |
} else {
|
7117 |
if (insn & (1 << 24)) { |
7118 |
/* pre decrement */
|
7119 |
tcg_gen_addi_i32(addr, addr, -(n * 4));
|
7120 |
} else {
|
7121 |
/* post decrement */
|
7122 |
if (n != 1) |
7123 |
tcg_gen_addi_i32(addr, addr, -((n - 1) * 4)); |
7124 |
} |
7125 |
} |
7126 |
j = 0;
|
7127 |
for(i=0;i<16;i++) { |
7128 |
if (insn & (1 << i)) { |
7129 |
if (insn & (1 << 20)) { |
7130 |
/* load */
|
7131 |
tmp = gen_ld32(addr, IS_USER(s)); |
7132 |
if (i == 15) { |
7133 |
gen_bx(s, tmp); |
7134 |
} else if (user) { |
7135 |
tmp2 = tcg_const_i32(i); |
7136 |
gen_helper_set_user_reg(tmp2, tmp); |
7137 |
tcg_temp_free_i32(tmp2); |
7138 |
dead_tmp(tmp); |
7139 |
} else if (i == rn) { |
7140 |
loaded_var = tmp; |
7141 |
loaded_base = 1;
|
7142 |
} else {
|
7143 |
store_reg(s, i, tmp); |
7144 |
} |
7145 |
} else {
|
7146 |
/* store */
|
7147 |
if (i == 15) { |
7148 |
/* special case: r15 = PC + 8 */
|
7149 |
val = (long)s->pc + 4; |
7150 |
tmp = new_tmp(); |
7151 |
tcg_gen_movi_i32(tmp, val); |
7152 |
} else if (user) { |
7153 |
tmp = new_tmp(); |
7154 |
tmp2 = tcg_const_i32(i); |
7155 |
gen_helper_get_user_reg(tmp, tmp2); |
7156 |
tcg_temp_free_i32(tmp2); |
7157 |
} else {
|
7158 |
tmp = load_reg(s, i); |
7159 |
} |
7160 |
gen_st32(tmp, addr, IS_USER(s)); |
7161 |
} |
7162 |
j++; |
7163 |
/* no need to add after the last transfer */
|
7164 |
if (j != n)
|
7165 |
tcg_gen_addi_i32(addr, addr, 4);
|
7166 |
} |
7167 |
} |
7168 |
if (insn & (1 << 21)) { |
7169 |
/* write back */
|
7170 |
if (insn & (1 << 23)) { |
7171 |
if (insn & (1 << 24)) { |
7172 |
/* pre increment */
|
7173 |
} else {
|
7174 |
/* post increment */
|
7175 |
tcg_gen_addi_i32(addr, addr, 4);
|
7176 |
} |
7177 |
} else {
|
7178 |
if (insn & (1 << 24)) { |
7179 |
/* pre decrement */
|
7180 |
if (n != 1) |
7181 |
tcg_gen_addi_i32(addr, addr, -((n - 1) * 4)); |
7182 |
} else {
|
7183 |
/* post decrement */
|
7184 |
tcg_gen_addi_i32(addr, addr, -(n * 4));
|
7185 |
} |
7186 |
} |
7187 |
store_reg(s, rn, addr); |
7188 |
} else {
|
7189 |
dead_tmp(addr); |
7190 |
} |
7191 |
if (loaded_base) {
|
7192 |
store_reg(s, rn, loaded_var); |
7193 |
} |
7194 |
if ((insn & (1 << 22)) && !user) { |
7195 |
/* Restore CPSR from SPSR. */
|
7196 |
tmp = load_cpu_field(spsr); |
7197 |
gen_set_cpsr(tmp, 0xffffffff);
|
7198 |
dead_tmp(tmp); |
7199 |
s->is_jmp = DISAS_UPDATE; |
7200 |
} |
7201 |
} |
7202 |
break;
|
7203 |
case 0xa: |
7204 |
case 0xb: |
7205 |
{ |
7206 |
int32_t offset; |
7207 |
|
7208 |
/* branch (and link) */
|
7209 |
val = (int32_t)s->pc; |
7210 |
if (insn & (1 << 24)) { |
7211 |
tmp = new_tmp(); |
7212 |
tcg_gen_movi_i32(tmp, val); |
7213 |
store_reg(s, 14, tmp);
|
7214 |
} |
7215 |
offset = (((int32_t)insn << 8) >> 8); |
7216 |
val += (offset << 2) + 4; |
7217 |
gen_jmp(s, val); |
7218 |
} |
7219 |
break;
|
7220 |
case 0xc: |
7221 |
case 0xd: |
7222 |
case 0xe: |
7223 |
/* Coprocessor. */
|
7224 |
if (disas_coproc_insn(env, s, insn))
|
7225 |
goto illegal_op;
|
7226 |
break;
|
7227 |
case 0xf: |
7228 |
/* swi */
|
7229 |
gen_set_pc_im(s->pc); |
7230 |
s->is_jmp = DISAS_SWI; |
7231 |
break;
|
7232 |
default:
|
7233 |
illegal_op:
|
7234 |
gen_set_condexec(s); |
7235 |
gen_set_pc_im(s->pc - 4);
|
7236 |
gen_exception(EXCP_UDEF); |
7237 |
s->is_jmp = DISAS_JUMP; |
7238 |
break;
|
7239 |
} |
7240 |
} |
7241 |
} |
7242 |
|
7243 |
/* Return true if this is a Thumb-2 logical op. */
|
7244 |
static int |
7245 |
thumb2_logic_op(int op)
|
7246 |
{ |
7247 |
return (op < 8); |
7248 |
} |
7249 |
|
7250 |
/* Generate code for a Thumb-2 data processing operation. If CONDS is nonzero
|
7251 |
then set condition code flags based on the result of the operation.
|
7252 |
If SHIFTER_OUT is nonzero then set the carry flag for logical operations
|
7253 |
to the high bit of T1.
|
7254 |
Returns zero if the opcode is valid. */
|
7255 |
|
7256 |
static int |
7257 |
gen_thumb2_data_op(DisasContext *s, int op, int conds, uint32_t shifter_out, TCGv t0, TCGv t1) |
7258 |
{ |
7259 |
int logic_cc;
|
7260 |
|
7261 |
logic_cc = 0;
|
7262 |
switch (op) {
|
7263 |
case 0: /* and */ |
7264 |
tcg_gen_and_i32(t0, t0, t1); |
7265 |
logic_cc = conds; |
7266 |
break;
|
7267 |
case 1: /* bic */ |
7268 |
tcg_gen_andc_i32(t0, t0, t1); |
7269 |
logic_cc = conds; |
7270 |
break;
|
7271 |
case 2: /* orr */ |
7272 |
tcg_gen_or_i32(t0, t0, t1); |
7273 |
logic_cc = conds; |
7274 |
break;
|
7275 |
case 3: /* orn */ |
7276 |
tcg_gen_not_i32(t1, t1); |
7277 |
tcg_gen_or_i32(t0, t0, t1); |
7278 |
logic_cc = conds; |
7279 |
break;
|
7280 |
case 4: /* eor */ |
7281 |
tcg_gen_xor_i32(t0, t0, t1); |
7282 |
logic_cc = conds; |
7283 |
break;
|
7284 |
case 8: /* add */ |
7285 |
if (conds)
|
7286 |
gen_helper_add_cc(t0, t0, t1); |
7287 |
else
|
7288 |
tcg_gen_add_i32(t0, t0, t1); |
7289 |
break;
|
7290 |
case 10: /* adc */ |
7291 |
if (conds)
|
7292 |
gen_helper_adc_cc(t0, t0, t1); |
7293 |
else
|
7294 |
gen_adc(t0, t1); |
7295 |
break;
|
7296 |
case 11: /* sbc */ |
7297 |
if (conds)
|
7298 |
gen_helper_sbc_cc(t0, t0, t1); |
7299 |
else
|
7300 |
gen_sub_carry(t0, t0, t1); |
7301 |
break;
|
7302 |
case 13: /* sub */ |
7303 |
if (conds)
|
7304 |
gen_helper_sub_cc(t0, t0, t1); |
7305 |
else
|
7306 |
tcg_gen_sub_i32(t0, t0, t1); |
7307 |
break;
|
7308 |
case 14: /* rsb */ |
7309 |
if (conds)
|
7310 |
gen_helper_sub_cc(t0, t1, t0); |
7311 |
else
|
7312 |
tcg_gen_sub_i32(t0, t1, t0); |
7313 |
break;
|
7314 |
default: /* 5, 6, 7, 9, 12, 15. */ |
7315 |
return 1; |
7316 |
} |
7317 |
if (logic_cc) {
|
7318 |
gen_logic_CC(t0); |
7319 |
if (shifter_out)
|
7320 |
gen_set_CF_bit31(t1); |
7321 |
} |
7322 |
return 0; |
7323 |
} |
7324 |
|
7325 |
/* Translate a 32-bit thumb instruction. Returns nonzero if the instruction
|
7326 |
is not legal. */
|
7327 |
static int disas_thumb2_insn(CPUState *env, DisasContext *s, uint16_t insn_hw1) |
7328 |
{ |
7329 |
uint32_t insn, imm, shift, offset; |
7330 |
uint32_t rd, rn, rm, rs; |
7331 |
TCGv tmp; |
7332 |
TCGv tmp2; |
7333 |
TCGv tmp3; |
7334 |
TCGv addr; |
7335 |
TCGv_i64 tmp64; |
7336 |
int op;
|
7337 |
int shiftop;
|
7338 |
int conds;
|
7339 |
int logic_cc;
|
7340 |
|
7341 |
if (!(arm_feature(env, ARM_FEATURE_THUMB2)
|
7342 |
|| arm_feature (env, ARM_FEATURE_M))) { |
7343 |
/* Thumb-1 cores may need to treat bl and blx as a pair of
|
7344 |
16-bit instructions to get correct prefetch abort behavior. */
|
7345 |
insn = insn_hw1; |
7346 |
if ((insn & (1 << 12)) == 0) { |
7347 |
/* Second half of blx. */
|
7348 |
offset = ((insn & 0x7ff) << 1); |
7349 |
tmp = load_reg(s, 14);
|
7350 |
tcg_gen_addi_i32(tmp, tmp, offset); |
7351 |
tcg_gen_andi_i32(tmp, tmp, 0xfffffffc);
|
7352 |
|
7353 |
tmp2 = new_tmp(); |
7354 |
tcg_gen_movi_i32(tmp2, s->pc | 1);
|
7355 |
store_reg(s, 14, tmp2);
|
7356 |
gen_bx(s, tmp); |
7357 |
return 0; |
7358 |
} |
7359 |
if (insn & (1 << 11)) { |
7360 |
/* Second half of bl. */
|
7361 |
offset = ((insn & 0x7ff) << 1) | 1; |
7362 |
tmp = load_reg(s, 14);
|
7363 |
tcg_gen_addi_i32(tmp, tmp, offset); |
7364 |
|
7365 |
tmp2 = new_tmp(); |
7366 |
tcg_gen_movi_i32(tmp2, s->pc | 1);
|
7367 |
store_reg(s, 14, tmp2);
|
7368 |
gen_bx(s, tmp); |
7369 |
return 0; |
7370 |
} |
7371 |
if ((s->pc & ~TARGET_PAGE_MASK) == 0) { |
7372 |
/* Instruction spans a page boundary. Implement it as two
|
7373 |
16-bit instructions in case the second half causes an
|
7374 |
prefetch abort. */
|
7375 |
offset = ((int32_t)insn << 21) >> 9; |
7376 |
tcg_gen_movi_i32(cpu_R[14], s->pc + 2 + offset); |
7377 |
return 0; |
7378 |
} |
7379 |
/* Fall through to 32-bit decode. */
|
7380 |
} |
7381 |
|
7382 |
insn = lduw_code(s->pc); |
7383 |
s->pc += 2;
|
7384 |
insn |= (uint32_t)insn_hw1 << 16;
|
7385 |
|
7386 |
if ((insn & 0xf800e800) != 0xf000e800) { |
7387 |
ARCH(6T2);
|
7388 |
} |
7389 |
|
7390 |
rn = (insn >> 16) & 0xf; |
7391 |
rs = (insn >> 12) & 0xf; |
7392 |
rd = (insn >> 8) & 0xf; |
7393 |
rm = insn & 0xf;
|
7394 |
switch ((insn >> 25) & 0xf) { |
7395 |
case 0: case 1: case 2: case 3: |
7396 |
/* 16-bit instructions. Should never happen. */
|
7397 |
abort(); |
7398 |
case 4: |
7399 |
if (insn & (1 << 22)) { |
7400 |
/* Other load/store, table branch. */
|
7401 |
if (insn & 0x01200000) { |
7402 |
/* Load/store doubleword. */
|
7403 |
if (rn == 15) { |
7404 |
addr = new_tmp(); |
7405 |
tcg_gen_movi_i32(addr, s->pc & ~3);
|
7406 |
} else {
|
7407 |
addr = load_reg(s, rn); |
7408 |
} |
7409 |
offset = (insn & 0xff) * 4; |
7410 |
if ((insn & (1 << 23)) == 0) |
7411 |
offset = -offset; |
7412 |
if (insn & (1 << 24)) { |
7413 |
tcg_gen_addi_i32(addr, addr, offset); |
7414 |
offset = 0;
|
7415 |
} |
7416 |
if (insn & (1 << 20)) { |
7417 |
/* ldrd */
|
7418 |
tmp = gen_ld32(addr, IS_USER(s)); |
7419 |
store_reg(s, rs, tmp); |
7420 |
tcg_gen_addi_i32(addr, addr, 4);
|
7421 |
tmp = gen_ld32(addr, IS_USER(s)); |
7422 |
store_reg(s, rd, tmp); |
7423 |
} else {
|
7424 |
/* strd */
|
7425 |
tmp = load_reg(s, rs); |
7426 |
gen_st32(tmp, addr, IS_USER(s)); |
7427 |
tcg_gen_addi_i32(addr, addr, 4);
|
7428 |
tmp = load_reg(s, rd); |
7429 |
gen_st32(tmp, addr, IS_USER(s)); |
7430 |
} |
7431 |
if (insn & (1 << 21)) { |
7432 |
/* Base writeback. */
|
7433 |
if (rn == 15) |
7434 |
goto illegal_op;
|
7435 |
tcg_gen_addi_i32(addr, addr, offset - 4);
|
7436 |
store_reg(s, rn, addr); |
7437 |
} else {
|
7438 |
dead_tmp(addr); |
7439 |
} |
7440 |
} else if ((insn & (1 << 23)) == 0) { |
7441 |
/* Load/store exclusive word. */
|
7442 |
addr = tcg_temp_local_new(); |
7443 |
load_reg_var(s, addr, rn); |
7444 |
tcg_gen_addi_i32(addr, addr, (insn & 0xff) << 2); |
7445 |
if (insn & (1 << 20)) { |
7446 |
gen_load_exclusive(s, rs, 15, addr, 2); |
7447 |
} else {
|
7448 |
gen_store_exclusive(s, rd, rs, 15, addr, 2); |
7449 |
} |
7450 |
tcg_temp_free(addr); |
7451 |
} else if ((insn & (1 << 6)) == 0) { |
7452 |
/* Table Branch. */
|
7453 |
if (rn == 15) { |
7454 |
addr = new_tmp(); |
7455 |
tcg_gen_movi_i32(addr, s->pc); |
7456 |
} else {
|
7457 |
addr = load_reg(s, rn); |
7458 |
} |
7459 |
tmp = load_reg(s, rm); |
7460 |
tcg_gen_add_i32(addr, addr, tmp); |
7461 |
if (insn & (1 << 4)) { |
7462 |
/* tbh */
|
7463 |
tcg_gen_add_i32(addr, addr, tmp); |
7464 |
dead_tmp(tmp); |
7465 |
tmp = gen_ld16u(addr, IS_USER(s)); |
7466 |
} else { /* tbb */ |
7467 |
dead_tmp(tmp); |
7468 |
tmp = gen_ld8u(addr, IS_USER(s)); |
7469 |
} |
7470 |
dead_tmp(addr); |
7471 |
tcg_gen_shli_i32(tmp, tmp, 1);
|
7472 |
tcg_gen_addi_i32(tmp, tmp, s->pc); |
7473 |
store_reg(s, 15, tmp);
|
7474 |
} else {
|
7475 |
/* Load/store exclusive byte/halfword/doubleword. */
|
7476 |
ARCH(7);
|
7477 |
op = (insn >> 4) & 0x3; |
7478 |
if (op == 2) { |
7479 |
goto illegal_op;
|
7480 |
} |
7481 |
addr = tcg_temp_local_new(); |
7482 |
load_reg_var(s, addr, rn); |
7483 |
if (insn & (1 << 20)) { |
7484 |
gen_load_exclusive(s, rs, rd, addr, op); |
7485 |
} else {
|
7486 |
gen_store_exclusive(s, rm, rs, rd, addr, op); |
7487 |
} |
7488 |
tcg_temp_free(addr); |
7489 |
} |
7490 |
} else {
|
7491 |
/* Load/store multiple, RFE, SRS. */
|
7492 |
if (((insn >> 23) & 1) == ((insn >> 24) & 1)) { |
7493 |
/* Not available in user mode. */
|
7494 |
if (IS_USER(s))
|
7495 |
goto illegal_op;
|
7496 |
if (insn & (1 << 20)) { |
7497 |
/* rfe */
|
7498 |
addr = load_reg(s, rn); |
7499 |
if ((insn & (1 << 24)) == 0) |
7500 |
tcg_gen_addi_i32(addr, addr, -8);
|
7501 |
/* Load PC into tmp and CPSR into tmp2. */
|
7502 |
tmp = gen_ld32(addr, 0);
|
7503 |
tcg_gen_addi_i32(addr, addr, 4);
|
7504 |
tmp2 = gen_ld32(addr, 0);
|
7505 |
if (insn & (1 << 21)) { |
7506 |
/* Base writeback. */
|
7507 |
if (insn & (1 << 24)) { |
7508 |
tcg_gen_addi_i32(addr, addr, 4);
|
7509 |
} else {
|
7510 |
tcg_gen_addi_i32(addr, addr, -4);
|
7511 |
} |
7512 |
store_reg(s, rn, addr); |
7513 |
} else {
|
7514 |
dead_tmp(addr); |
7515 |
} |
7516 |
gen_rfe(s, tmp, tmp2); |
7517 |
} else {
|
7518 |
/* srs */
|
7519 |
op = (insn & 0x1f);
|
7520 |
if (op == (env->uncached_cpsr & CPSR_M)) {
|
7521 |
addr = load_reg(s, 13);
|
7522 |
} else {
|
7523 |
addr = new_tmp(); |
7524 |
tmp = tcg_const_i32(op); |
7525 |
gen_helper_get_r13_banked(addr, cpu_env, tmp); |
7526 |
tcg_temp_free_i32(tmp); |
7527 |
} |
7528 |
if ((insn & (1 << 24)) == 0) { |
7529 |
tcg_gen_addi_i32(addr, addr, -8);
|
7530 |
} |
7531 |
tmp = load_reg(s, 14);
|
7532 |
gen_st32(tmp, addr, 0);
|
7533 |
tcg_gen_addi_i32(addr, addr, 4);
|
7534 |
tmp = new_tmp(); |
7535 |
gen_helper_cpsr_read(tmp); |
7536 |
gen_st32(tmp, addr, 0);
|
7537 |
if (insn & (1 << 21)) { |
7538 |
if ((insn & (1 << 24)) == 0) { |
7539 |
tcg_gen_addi_i32(addr, addr, -4);
|
7540 |
} else {
|
7541 |
tcg_gen_addi_i32(addr, addr, 4);
|
7542 |
} |
7543 |
if (op == (env->uncached_cpsr & CPSR_M)) {
|
7544 |
store_reg(s, 13, addr);
|
7545 |
} else {
|
7546 |
tmp = tcg_const_i32(op); |
7547 |
gen_helper_set_r13_banked(cpu_env, tmp, addr); |
7548 |
tcg_temp_free_i32(tmp); |
7549 |
} |
7550 |
} else {
|
7551 |
dead_tmp(addr); |
7552 |
} |
7553 |
} |
7554 |
} else {
|
7555 |
int i;
|
7556 |
/* Load/store multiple. */
|
7557 |
addr = load_reg(s, rn); |
7558 |
offset = 0;
|
7559 |
for (i = 0; i < 16; i++) { |
7560 |
if (insn & (1 << i)) |
7561 |
offset += 4;
|
7562 |
} |
7563 |
if (insn & (1 << 24)) { |
7564 |
tcg_gen_addi_i32(addr, addr, -offset); |
7565 |
} |
7566 |
|
7567 |
for (i = 0; i < 16; i++) { |
7568 |
if ((insn & (1 << i)) == 0) |
7569 |
continue;
|
7570 |
if (insn & (1 << 20)) { |
7571 |
/* Load. */
|
7572 |
tmp = gen_ld32(addr, IS_USER(s)); |
7573 |
if (i == 15) { |
7574 |
gen_bx(s, tmp); |
7575 |
} else {
|
7576 |
store_reg(s, i, tmp); |
7577 |
} |
7578 |
} else {
|
7579 |
/* Store. */
|
7580 |
tmp = load_reg(s, i); |
7581 |
gen_st32(tmp, addr, IS_USER(s)); |
7582 |
} |
7583 |
tcg_gen_addi_i32(addr, addr, 4);
|
7584 |
} |
7585 |
if (insn & (1 << 21)) { |
7586 |
/* Base register writeback. */
|
7587 |
if (insn & (1 << 24)) { |
7588 |
tcg_gen_addi_i32(addr, addr, -offset); |
7589 |
} |
7590 |
/* Fault if writeback register is in register list. */
|
7591 |
if (insn & (1 << rn)) |
7592 |
goto illegal_op;
|
7593 |
store_reg(s, rn, addr); |
7594 |
} else {
|
7595 |
dead_tmp(addr); |
7596 |
} |
7597 |
} |
7598 |
} |
7599 |
break;
|
7600 |
case 5: /* Data processing register constant shift. */ |
7601 |
if (rn == 15) { |
7602 |
tmp = new_tmp(); |
7603 |
tcg_gen_movi_i32(tmp, 0);
|
7604 |
} else {
|
7605 |
tmp = load_reg(s, rn); |
7606 |
} |
7607 |
tmp2 = load_reg(s, rm); |
7608 |
op = (insn >> 21) & 0xf; |
7609 |
shiftop = (insn >> 4) & 3; |
7610 |
shift = ((insn >> 6) & 3) | ((insn >> 10) & 0x1c); |
7611 |
conds = (insn & (1 << 20)) != 0; |
7612 |
logic_cc = (conds && thumb2_logic_op(op)); |
7613 |
gen_arm_shift_im(tmp2, shiftop, shift, logic_cc); |
7614 |
if (gen_thumb2_data_op(s, op, conds, 0, tmp, tmp2)) |
7615 |
goto illegal_op;
|
7616 |
dead_tmp(tmp2); |
7617 |
if (rd != 15) { |
7618 |
store_reg(s, rd, tmp); |
7619 |
} else {
|
7620 |
dead_tmp(tmp); |
7621 |
} |
7622 |
break;
|
7623 |
case 13: /* Misc data processing. */ |
7624 |
op = ((insn >> 22) & 6) | ((insn >> 7) & 1); |
7625 |
if (op < 4 && (insn & 0xf000) != 0xf000) |
7626 |
goto illegal_op;
|
7627 |
switch (op) {
|
7628 |
case 0: /* Register controlled shift. */ |
7629 |
tmp = load_reg(s, rn); |
7630 |
tmp2 = load_reg(s, rm); |
7631 |
if ((insn & 0x70) != 0) |
7632 |
goto illegal_op;
|
7633 |
op = (insn >> 21) & 3; |
7634 |
logic_cc = (insn & (1 << 20)) != 0; |
7635 |
gen_arm_shift_reg(tmp, op, tmp2, logic_cc); |
7636 |
if (logic_cc)
|
7637 |
gen_logic_CC(tmp); |
7638 |
store_reg_bx(env, s, rd, tmp); |
7639 |
break;
|
7640 |
case 1: /* Sign/zero extend. */ |
7641 |
tmp = load_reg(s, rm); |
7642 |
shift = (insn >> 4) & 3; |
7643 |
/* ??? In many cases it's not neccessary to do a
|
7644 |
rotate, a shift is sufficient. */
|
7645 |
if (shift != 0) |
7646 |
tcg_gen_rotri_i32(tmp, tmp, shift * 8);
|
7647 |
op = (insn >> 20) & 7; |
7648 |
switch (op) {
|
7649 |
case 0: gen_sxth(tmp); break; |
7650 |
case 1: gen_uxth(tmp); break; |
7651 |
case 2: gen_sxtb16(tmp); break; |
7652 |
case 3: gen_uxtb16(tmp); break; |
7653 |
case 4: gen_sxtb(tmp); break; |
7654 |
case 5: gen_uxtb(tmp); break; |
7655 |
default: goto illegal_op; |
7656 |
} |
7657 |
if (rn != 15) { |
7658 |
tmp2 = load_reg(s, rn); |
7659 |
if ((op >> 1) == 1) { |
7660 |
gen_add16(tmp, tmp2); |
7661 |
} else {
|
7662 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
7663 |
dead_tmp(tmp2); |
7664 |
} |
7665 |
} |
7666 |
store_reg(s, rd, tmp); |
7667 |
break;
|
7668 |
case 2: /* SIMD add/subtract. */ |
7669 |
op = (insn >> 20) & 7; |
7670 |
shift = (insn >> 4) & 7; |
7671 |
if ((op & 3) == 3 || (shift & 3) == 3) |
7672 |
goto illegal_op;
|
7673 |
tmp = load_reg(s, rn); |
7674 |
tmp2 = load_reg(s, rm); |
7675 |
gen_thumb2_parallel_addsub(op, shift, tmp, tmp2); |
7676 |
dead_tmp(tmp2); |
7677 |
store_reg(s, rd, tmp); |
7678 |
break;
|
7679 |
case 3: /* Other data processing. */ |
7680 |
op = ((insn >> 17) & 0x38) | ((insn >> 4) & 7); |
7681 |
if (op < 4) { |
7682 |
/* Saturating add/subtract. */
|
7683 |
tmp = load_reg(s, rn); |
7684 |
tmp2 = load_reg(s, rm); |
7685 |
if (op & 2) |
7686 |
gen_helper_double_saturate(tmp, tmp); |
7687 |
if (op & 1) |
7688 |
gen_helper_sub_saturate(tmp, tmp2, tmp); |
7689 |
else
|
7690 |
gen_helper_add_saturate(tmp, tmp, tmp2); |
7691 |
dead_tmp(tmp2); |
7692 |
} else {
|
7693 |
tmp = load_reg(s, rn); |
7694 |
switch (op) {
|
7695 |
case 0x0a: /* rbit */ |
7696 |
gen_helper_rbit(tmp, tmp); |
7697 |
break;
|
7698 |
case 0x08: /* rev */ |
7699 |
tcg_gen_bswap32_i32(tmp, tmp); |
7700 |
break;
|
7701 |
case 0x09: /* rev16 */ |
7702 |
gen_rev16(tmp); |
7703 |
break;
|
7704 |
case 0x0b: /* revsh */ |
7705 |
gen_revsh(tmp); |
7706 |
break;
|
7707 |
case 0x10: /* sel */ |
7708 |
tmp2 = load_reg(s, rm); |
7709 |
tmp3 = new_tmp(); |
7710 |
tcg_gen_ld_i32(tmp3, cpu_env, offsetof(CPUState, GE)); |
7711 |
gen_helper_sel_flags(tmp, tmp3, tmp, tmp2); |
7712 |
dead_tmp(tmp3); |
7713 |
dead_tmp(tmp2); |
7714 |
break;
|
7715 |
case 0x18: /* clz */ |
7716 |
gen_helper_clz(tmp, tmp); |
7717 |
break;
|
7718 |
default:
|
7719 |
goto illegal_op;
|
7720 |
} |
7721 |
} |
7722 |
store_reg(s, rd, tmp); |
7723 |
break;
|
7724 |
case 4: case 5: /* 32-bit multiply. Sum of absolute differences. */ |
7725 |
op = (insn >> 4) & 0xf; |
7726 |
tmp = load_reg(s, rn); |
7727 |
tmp2 = load_reg(s, rm); |
7728 |
switch ((insn >> 20) & 7) { |
7729 |
case 0: /* 32 x 32 -> 32 */ |
7730 |
tcg_gen_mul_i32(tmp, tmp, tmp2); |
7731 |
dead_tmp(tmp2); |
7732 |
if (rs != 15) { |
7733 |
tmp2 = load_reg(s, rs); |
7734 |
if (op)
|
7735 |
tcg_gen_sub_i32(tmp, tmp2, tmp); |
7736 |
else
|
7737 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
7738 |
dead_tmp(tmp2); |
7739 |
} |
7740 |
break;
|
7741 |
case 1: /* 16 x 16 -> 32 */ |
7742 |
gen_mulxy(tmp, tmp2, op & 2, op & 1); |
7743 |
dead_tmp(tmp2); |
7744 |
if (rs != 15) { |
7745 |
tmp2 = load_reg(s, rs); |
7746 |
gen_helper_add_setq(tmp, tmp, tmp2); |
7747 |
dead_tmp(tmp2); |
7748 |
} |
7749 |
break;
|
7750 |
case 2: /* Dual multiply add. */ |
7751 |
case 4: /* Dual multiply subtract. */ |
7752 |
if (op)
|
7753 |
gen_swap_half(tmp2); |
7754 |
gen_smul_dual(tmp, tmp2); |
7755 |
/* This addition cannot overflow. */
|
7756 |
if (insn & (1 << 22)) { |
7757 |
tcg_gen_sub_i32(tmp, tmp, tmp2); |
7758 |
} else {
|
7759 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
7760 |
} |
7761 |
dead_tmp(tmp2); |
7762 |
if (rs != 15) |
7763 |
{ |
7764 |
tmp2 = load_reg(s, rs); |
7765 |
gen_helper_add_setq(tmp, tmp, tmp2); |
7766 |
dead_tmp(tmp2); |
7767 |
} |
7768 |
break;
|
7769 |
case 3: /* 32 * 16 -> 32msb */ |
7770 |
if (op)
|
7771 |
tcg_gen_sari_i32(tmp2, tmp2, 16);
|
7772 |
else
|
7773 |
gen_sxth(tmp2); |
7774 |
tmp64 = gen_muls_i64_i32(tmp, tmp2); |
7775 |
tcg_gen_shri_i64(tmp64, tmp64, 16);
|
7776 |
tmp = new_tmp(); |
7777 |
tcg_gen_trunc_i64_i32(tmp, tmp64); |
7778 |
tcg_temp_free_i64(tmp64); |
7779 |
if (rs != 15) |
7780 |
{ |
7781 |
tmp2 = load_reg(s, rs); |
7782 |
gen_helper_add_setq(tmp, tmp, tmp2); |
7783 |
dead_tmp(tmp2); |
7784 |
} |
7785 |
break;
|
7786 |
case 5: case 6: /* 32 * 32 -> 32msb */ |
7787 |
gen_imull(tmp, tmp2); |
7788 |
if (insn & (1 << 5)) { |
7789 |
gen_roundqd(tmp, tmp2); |
7790 |
dead_tmp(tmp2); |
7791 |
} else {
|
7792 |
dead_tmp(tmp); |
7793 |
tmp = tmp2; |
7794 |
} |
7795 |
if (rs != 15) { |
7796 |
tmp2 = load_reg(s, rs); |
7797 |
if (insn & (1 << 21)) { |
7798 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
7799 |
} else {
|
7800 |
tcg_gen_sub_i32(tmp, tmp2, tmp); |
7801 |
} |
7802 |
dead_tmp(tmp2); |
7803 |
} |
7804 |
break;
|
7805 |
case 7: /* Unsigned sum of absolute differences. */ |
7806 |
gen_helper_usad8(tmp, tmp, tmp2); |
7807 |
dead_tmp(tmp2); |
7808 |
if (rs != 15) { |
7809 |
tmp2 = load_reg(s, rs); |
7810 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
7811 |
dead_tmp(tmp2); |
7812 |
} |
7813 |
break;
|
7814 |
} |
7815 |
store_reg(s, rd, tmp); |
7816 |
break;
|
7817 |
case 6: case 7: /* 64-bit multiply, Divide. */ |
7818 |
op = ((insn >> 4) & 0xf) | ((insn >> 16) & 0x70); |
7819 |
tmp = load_reg(s, rn); |
7820 |
tmp2 = load_reg(s, rm); |
7821 |
if ((op & 0x50) == 0x10) { |
7822 |
/* sdiv, udiv */
|
7823 |
if (!arm_feature(env, ARM_FEATURE_DIV))
|
7824 |
goto illegal_op;
|
7825 |
if (op & 0x20) |
7826 |
gen_helper_udiv(tmp, tmp, tmp2); |
7827 |
else
|
7828 |
gen_helper_sdiv(tmp, tmp, tmp2); |
7829 |
dead_tmp(tmp2); |
7830 |
store_reg(s, rd, tmp); |
7831 |
} else if ((op & 0xe) == 0xc) { |
7832 |
/* Dual multiply accumulate long. */
|
7833 |
if (op & 1) |
7834 |
gen_swap_half(tmp2); |
7835 |
gen_smul_dual(tmp, tmp2); |
7836 |
if (op & 0x10) { |
7837 |
tcg_gen_sub_i32(tmp, tmp, tmp2); |
7838 |
} else {
|
7839 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
7840 |
} |
7841 |
dead_tmp(tmp2); |
7842 |
/* BUGFIX */
|
7843 |
tmp64 = tcg_temp_new_i64(); |
7844 |
tcg_gen_ext_i32_i64(tmp64, tmp); |
7845 |
dead_tmp(tmp); |
7846 |
gen_addq(s, tmp64, rs, rd); |
7847 |
gen_storeq_reg(s, rs, rd, tmp64); |
7848 |
tcg_temp_free_i64(tmp64); |
7849 |
} else {
|
7850 |
if (op & 0x20) { |
7851 |
/* Unsigned 64-bit multiply */
|
7852 |
tmp64 = gen_mulu_i64_i32(tmp, tmp2); |
7853 |
} else {
|
7854 |
if (op & 8) { |
7855 |
/* smlalxy */
|
7856 |
gen_mulxy(tmp, tmp2, op & 2, op & 1); |
7857 |
dead_tmp(tmp2); |
7858 |
tmp64 = tcg_temp_new_i64(); |
7859 |
tcg_gen_ext_i32_i64(tmp64, tmp); |
7860 |
dead_tmp(tmp); |
7861 |
} else {
|
7862 |
/* Signed 64-bit multiply */
|
7863 |
tmp64 = gen_muls_i64_i32(tmp, tmp2); |
7864 |
} |
7865 |
} |
7866 |
if (op & 4) { |
7867 |
/* umaal */
|
7868 |
gen_addq_lo(s, tmp64, rs); |
7869 |
gen_addq_lo(s, tmp64, rd); |
7870 |
} else if (op & 0x40) { |
7871 |
/* 64-bit accumulate. */
|
7872 |
gen_addq(s, tmp64, rs, rd); |
7873 |
} |
7874 |
gen_storeq_reg(s, rs, rd, tmp64); |
7875 |
tcg_temp_free_i64(tmp64); |
7876 |
} |
7877 |
break;
|
7878 |
} |
7879 |
break;
|
7880 |
case 6: case 7: case 14: case 15: |
7881 |
/* Coprocessor. */
|
7882 |
if (((insn >> 24) & 3) == 3) { |
7883 |
/* Translate into the equivalent ARM encoding. */
|
7884 |
insn = (insn & 0xe2ffffff) | ((insn & (1 << 28)) >> 4); |
7885 |
if (disas_neon_data_insn(env, s, insn))
|
7886 |
goto illegal_op;
|
7887 |
} else {
|
7888 |
if (insn & (1 << 28)) |
7889 |
goto illegal_op;
|
7890 |
if (disas_coproc_insn (env, s, insn))
|
7891 |
goto illegal_op;
|
7892 |
} |
7893 |
break;
|
7894 |
case 8: case 9: case 10: case 11: |
7895 |
if (insn & (1 << 15)) { |
7896 |
/* Branches, misc control. */
|
7897 |
if (insn & 0x5000) { |
7898 |
/* Unconditional branch. */
|
7899 |
/* signextend(hw1[10:0]) -> offset[:12]. */
|
7900 |
offset = ((int32_t)insn << 5) >> 9 & ~(int32_t)0xfff; |
7901 |
/* hw1[10:0] -> offset[11:1]. */
|
7902 |
offset |= (insn & 0x7ff) << 1; |
7903 |
/* (~hw2[13, 11] ^ offset[24]) -> offset[23,22]
|
7904 |
offset[24:22] already have the same value because of the
|
7905 |
sign extension above. */
|
7906 |
offset ^= ((~insn) & (1 << 13)) << 10; |
7907 |
offset ^= ((~insn) & (1 << 11)) << 11; |
7908 |
|
7909 |
if (insn & (1 << 14)) { |
7910 |
/* Branch and link. */
|
7911 |
tcg_gen_movi_i32(cpu_R[14], s->pc | 1); |
7912 |
} |
7913 |
|
7914 |
offset += s->pc; |
7915 |
if (insn & (1 << 12)) { |
7916 |
/* b/bl */
|
7917 |
gen_jmp(s, offset); |
7918 |
} else {
|
7919 |
/* blx */
|
7920 |
offset &= ~(uint32_t)2;
|
7921 |
gen_bx_im(s, offset); |
7922 |
} |
7923 |
} else if (((insn >> 23) & 7) == 7) { |
7924 |
/* Misc control */
|
7925 |
if (insn & (1 << 13)) |
7926 |
goto illegal_op;
|
7927 |
|
7928 |
if (insn & (1 << 26)) { |
7929 |
/* Secure monitor call (v6Z) */
|
7930 |
goto illegal_op; /* not implemented. */ |
7931 |
} else {
|
7932 |
op = (insn >> 20) & 7; |
7933 |
switch (op) {
|
7934 |
case 0: /* msr cpsr. */ |
7935 |
if (IS_M(env)) {
|
7936 |
tmp = load_reg(s, rn); |
7937 |
addr = tcg_const_i32(insn & 0xff);
|
7938 |
gen_helper_v7m_msr(cpu_env, addr, tmp); |
7939 |
tcg_temp_free_i32(addr); |
7940 |
dead_tmp(tmp); |
7941 |
gen_lookup_tb(s); |
7942 |
break;
|
7943 |
} |
7944 |
/* fall through */
|
7945 |
case 1: /* msr spsr. */ |
7946 |
if (IS_M(env))
|
7947 |
goto illegal_op;
|
7948 |
tmp = load_reg(s, rn); |
7949 |
if (gen_set_psr(s,
|
7950 |
msr_mask(env, s, (insn >> 8) & 0xf, op == 1), |
7951 |
op == 1, tmp))
|
7952 |
goto illegal_op;
|
7953 |
break;
|
7954 |
case 2: /* cps, nop-hint. */ |
7955 |
if (((insn >> 8) & 7) == 0) { |
7956 |
gen_nop_hint(s, insn & 0xff);
|
7957 |
} |
7958 |
/* Implemented as NOP in user mode. */
|
7959 |
if (IS_USER(s))
|
7960 |
break;
|
7961 |
offset = 0;
|
7962 |
imm = 0;
|
7963 |
if (insn & (1 << 10)) { |
7964 |
if (insn & (1 << 7)) |
7965 |
offset |= CPSR_A; |
7966 |
if (insn & (1 << 6)) |
7967 |
offset |= CPSR_I; |
7968 |
if (insn & (1 << 5)) |
7969 |
offset |= CPSR_F; |
7970 |
if (insn & (1 << 9)) |
7971 |
imm = CPSR_A | CPSR_I | CPSR_F; |
7972 |
} |
7973 |
if (insn & (1 << 8)) { |
7974 |
offset |= 0x1f;
|
7975 |
imm |= (insn & 0x1f);
|
7976 |
} |
7977 |
if (offset) {
|
7978 |
gen_set_psr_im(s, offset, 0, imm);
|
7979 |
} |
7980 |
break;
|
7981 |
case 3: /* Special control operations. */ |
7982 |
ARCH(7);
|
7983 |
op = (insn >> 4) & 0xf; |
7984 |
switch (op) {
|
7985 |
case 2: /* clrex */ |
7986 |
gen_clrex(s); |
7987 |
break;
|
7988 |
case 4: /* dsb */ |
7989 |
case 5: /* dmb */ |
7990 |
case 6: /* isb */ |
7991 |
/* These execute as NOPs. */
|
7992 |
break;
|
7993 |
default:
|
7994 |
goto illegal_op;
|
7995 |
} |
7996 |
break;
|
7997 |
case 4: /* bxj */ |
7998 |
/* Trivial implementation equivalent to bx. */
|
7999 |
tmp = load_reg(s, rn); |
8000 |
gen_bx(s, tmp); |
8001 |
break;
|
8002 |
case 5: /* Exception return. */ |
8003 |
if (IS_USER(s)) {
|
8004 |
goto illegal_op;
|
8005 |
} |
8006 |
if (rn != 14 || rd != 15) { |
8007 |
goto illegal_op;
|
8008 |
} |
8009 |
tmp = load_reg(s, rn); |
8010 |
tcg_gen_subi_i32(tmp, tmp, insn & 0xff);
|
8011 |
gen_exception_return(s, tmp); |
8012 |
break;
|
8013 |
case 6: /* mrs cpsr. */ |
8014 |
tmp = new_tmp(); |
8015 |
if (IS_M(env)) {
|
8016 |
addr = tcg_const_i32(insn & 0xff);
|
8017 |
gen_helper_v7m_mrs(tmp, cpu_env, addr); |
8018 |
tcg_temp_free_i32(addr); |
8019 |
} else {
|
8020 |
gen_helper_cpsr_read(tmp); |
8021 |
} |
8022 |
store_reg(s, rd, tmp); |
8023 |
break;
|
8024 |
case 7: /* mrs spsr. */ |
8025 |
/* Not accessible in user mode. */
|
8026 |
if (IS_USER(s) || IS_M(env))
|
8027 |
goto illegal_op;
|
8028 |
tmp = load_cpu_field(spsr); |
8029 |
store_reg(s, rd, tmp); |
8030 |
break;
|
8031 |
} |
8032 |
} |
8033 |
} else {
|
8034 |
/* Conditional branch. */
|
8035 |
op = (insn >> 22) & 0xf; |
8036 |
/* Generate a conditional jump to next instruction. */
|
8037 |
s->condlabel = gen_new_label(); |
8038 |
gen_test_cc(op ^ 1, s->condlabel);
|
8039 |
s->condjmp = 1;
|
8040 |
|
8041 |
/* offset[11:1] = insn[10:0] */
|
8042 |
offset = (insn & 0x7ff) << 1; |
8043 |
/* offset[17:12] = insn[21:16]. */
|
8044 |
offset |= (insn & 0x003f0000) >> 4; |
8045 |
/* offset[31:20] = insn[26]. */
|
8046 |
offset |= ((int32_t)((insn << 5) & 0x80000000)) >> 11; |
8047 |
/* offset[18] = insn[13]. */
|
8048 |
offset |= (insn & (1 << 13)) << 5; |
8049 |
/* offset[19] = insn[11]. */
|
8050 |
offset |= (insn & (1 << 11)) << 8; |
8051 |
|
8052 |
/* jump to the offset */
|
8053 |
gen_jmp(s, s->pc + offset); |
8054 |
} |
8055 |
} else {
|
8056 |
/* Data processing immediate. */
|
8057 |
if (insn & (1 << 25)) { |
8058 |
if (insn & (1 << 24)) { |
8059 |
if (insn & (1 << 20)) |
8060 |
goto illegal_op;
|
8061 |
/* Bitfield/Saturate. */
|
8062 |
op = (insn >> 21) & 7; |
8063 |
imm = insn & 0x1f;
|
8064 |
shift = ((insn >> 6) & 3) | ((insn >> 10) & 0x1c); |
8065 |
if (rn == 15) { |
8066 |
tmp = new_tmp(); |
8067 |
tcg_gen_movi_i32(tmp, 0);
|
8068 |
} else {
|
8069 |
tmp = load_reg(s, rn); |
8070 |
} |
8071 |
switch (op) {
|
8072 |
case 2: /* Signed bitfield extract. */ |
8073 |
imm++; |
8074 |
if (shift + imm > 32) |
8075 |
goto illegal_op;
|
8076 |
if (imm < 32) |
8077 |
gen_sbfx(tmp, shift, imm); |
8078 |
break;
|
8079 |
case 6: /* Unsigned bitfield extract. */ |
8080 |
imm++; |
8081 |
if (shift + imm > 32) |
8082 |
goto illegal_op;
|
8083 |
if (imm < 32) |
8084 |
gen_ubfx(tmp, shift, (1u << imm) - 1); |
8085 |
break;
|
8086 |
case 3: /* Bitfield insert/clear. */ |
8087 |
if (imm < shift)
|
8088 |
goto illegal_op;
|
8089 |
imm = imm + 1 - shift;
|
8090 |
if (imm != 32) { |
8091 |
tmp2 = load_reg(s, rd); |
8092 |
gen_bfi(tmp, tmp2, tmp, shift, (1u << imm) - 1); |
8093 |
dead_tmp(tmp2); |
8094 |
} |
8095 |
break;
|
8096 |
case 7: |
8097 |
goto illegal_op;
|
8098 |
default: /* Saturate. */ |
8099 |
if (shift) {
|
8100 |
if (op & 1) |
8101 |
tcg_gen_sari_i32(tmp, tmp, shift); |
8102 |
else
|
8103 |
tcg_gen_shli_i32(tmp, tmp, shift); |
8104 |
} |
8105 |
tmp2 = tcg_const_i32(imm); |
8106 |
if (op & 4) { |
8107 |
/* Unsigned. */
|
8108 |
if ((op & 1) && shift == 0) |
8109 |
gen_helper_usat16(tmp, tmp, tmp2); |
8110 |
else
|
8111 |
gen_helper_usat(tmp, tmp, tmp2); |
8112 |
} else {
|
8113 |
/* Signed. */
|
8114 |
if ((op & 1) && shift == 0) |
8115 |
gen_helper_ssat16(tmp, tmp, tmp2); |
8116 |
else
|
8117 |
gen_helper_ssat(tmp, tmp, tmp2); |
8118 |
} |
8119 |
tcg_temp_free_i32(tmp2); |
8120 |
break;
|
8121 |
} |
8122 |
store_reg(s, rd, tmp); |
8123 |
} else {
|
8124 |
imm = ((insn & 0x04000000) >> 15) |
8125 |
| ((insn & 0x7000) >> 4) | (insn & 0xff); |
8126 |
if (insn & (1 << 22)) { |
8127 |
/* 16-bit immediate. */
|
8128 |
imm |= (insn >> 4) & 0xf000; |
8129 |
if (insn & (1 << 23)) { |
8130 |
/* movt */
|
8131 |
tmp = load_reg(s, rd); |
8132 |
tcg_gen_ext16u_i32(tmp, tmp); |
8133 |
tcg_gen_ori_i32(tmp, tmp, imm << 16);
|
8134 |
} else {
|
8135 |
/* movw */
|
8136 |
tmp = new_tmp(); |
8137 |
tcg_gen_movi_i32(tmp, imm); |
8138 |
} |
8139 |
} else {
|
8140 |
/* Add/sub 12-bit immediate. */
|
8141 |
if (rn == 15) { |
8142 |
offset = s->pc & ~(uint32_t)3;
|
8143 |
if (insn & (1 << 23)) |
8144 |
offset -= imm; |
8145 |
else
|
8146 |
offset += imm; |
8147 |
tmp = new_tmp(); |
8148 |
tcg_gen_movi_i32(tmp, offset); |
8149 |
} else {
|
8150 |
tmp = load_reg(s, rn); |
8151 |
if (insn & (1 << 23)) |
8152 |
tcg_gen_subi_i32(tmp, tmp, imm); |
8153 |
else
|
8154 |
tcg_gen_addi_i32(tmp, tmp, imm); |
8155 |
} |
8156 |
} |
8157 |
store_reg(s, rd, tmp); |
8158 |
} |
8159 |
} else {
|
8160 |
int shifter_out = 0; |
8161 |
/* modified 12-bit immediate. */
|
8162 |
shift = ((insn & 0x04000000) >> 23) | ((insn & 0x7000) >> 12); |
8163 |
imm = (insn & 0xff);
|
8164 |
switch (shift) {
|
8165 |
case 0: /* XY */ |
8166 |
/* Nothing to do. */
|
8167 |
break;
|
8168 |
case 1: /* 00XY00XY */ |
8169 |
imm |= imm << 16;
|
8170 |
break;
|
8171 |
case 2: /* XY00XY00 */ |
8172 |
imm |= imm << 16;
|
8173 |
imm <<= 8;
|
8174 |
break;
|
8175 |
case 3: /* XYXYXYXY */ |
8176 |
imm |= imm << 16;
|
8177 |
imm |= imm << 8;
|
8178 |
break;
|
8179 |
default: /* Rotated constant. */ |
8180 |
shift = (shift << 1) | (imm >> 7); |
8181 |
imm |= 0x80;
|
8182 |
imm = imm << (32 - shift);
|
8183 |
shifter_out = 1;
|
8184 |
break;
|
8185 |
} |
8186 |
tmp2 = new_tmp(); |
8187 |
tcg_gen_movi_i32(tmp2, imm); |
8188 |
rn = (insn >> 16) & 0xf; |
8189 |
if (rn == 15) { |
8190 |
tmp = new_tmp(); |
8191 |
tcg_gen_movi_i32(tmp, 0);
|
8192 |
} else {
|
8193 |
tmp = load_reg(s, rn); |
8194 |
} |
8195 |
op = (insn >> 21) & 0xf; |
8196 |
if (gen_thumb2_data_op(s, op, (insn & (1 << 20)) != 0, |
8197 |
shifter_out, tmp, tmp2)) |
8198 |
goto illegal_op;
|
8199 |
dead_tmp(tmp2); |
8200 |
rd = (insn >> 8) & 0xf; |
8201 |
if (rd != 15) { |
8202 |
store_reg(s, rd, tmp); |
8203 |
} else {
|
8204 |
dead_tmp(tmp); |
8205 |
} |
8206 |
} |
8207 |
} |
8208 |
break;
|
8209 |
case 12: /* Load/store single data item. */ |
8210 |
{ |
8211 |
int postinc = 0; |
8212 |
int writeback = 0; |
8213 |
int user;
|
8214 |
if ((insn & 0x01100000) == 0x01000000) { |
8215 |
if (disas_neon_ls_insn(env, s, insn))
|
8216 |
goto illegal_op;
|
8217 |
break;
|
8218 |
} |
8219 |
user = IS_USER(s); |
8220 |
if (rn == 15) { |
8221 |
addr = new_tmp(); |
8222 |
/* PC relative. */
|
8223 |
/* s->pc has already been incremented by 4. */
|
8224 |
imm = s->pc & 0xfffffffc;
|
8225 |
if (insn & (1 << 23)) |
8226 |
imm += insn & 0xfff;
|
8227 |
else
|
8228 |
imm -= insn & 0xfff;
|
8229 |
tcg_gen_movi_i32(addr, imm); |
8230 |
} else {
|
8231 |
addr = load_reg(s, rn); |
8232 |
if (insn & (1 << 23)) { |
8233 |
/* Positive offset. */
|
8234 |
imm = insn & 0xfff;
|
8235 |
tcg_gen_addi_i32(addr, addr, imm); |
8236 |
} else {
|
8237 |
op = (insn >> 8) & 7; |
8238 |
imm = insn & 0xff;
|
8239 |
switch (op) {
|
8240 |
case 0: case 8: /* Shifted Register. */ |
8241 |
shift = (insn >> 4) & 0xf; |
8242 |
if (shift > 3) |
8243 |
goto illegal_op;
|
8244 |
tmp = load_reg(s, rm); |
8245 |
if (shift)
|
8246 |
tcg_gen_shli_i32(tmp, tmp, shift); |
8247 |
tcg_gen_add_i32(addr, addr, tmp); |
8248 |
dead_tmp(tmp); |
8249 |
break;
|
8250 |
case 4: /* Negative offset. */ |
8251 |
tcg_gen_addi_i32(addr, addr, -imm); |
8252 |
break;
|
8253 |
case 6: /* User privilege. */ |
8254 |
tcg_gen_addi_i32(addr, addr, imm); |
8255 |
user = 1;
|
8256 |
break;
|
8257 |
case 1: /* Post-decrement. */ |
8258 |
imm = -imm; |
8259 |
/* Fall through. */
|
8260 |
case 3: /* Post-increment. */ |
8261 |
postinc = 1;
|
8262 |
writeback = 1;
|
8263 |
break;
|
8264 |
case 5: /* Pre-decrement. */ |
8265 |
imm = -imm; |
8266 |
/* Fall through. */
|
8267 |
case 7: /* Pre-increment. */ |
8268 |
tcg_gen_addi_i32(addr, addr, imm); |
8269 |
writeback = 1;
|
8270 |
break;
|
8271 |
default:
|
8272 |
goto illegal_op;
|
8273 |
} |
8274 |
} |
8275 |
} |
8276 |
op = ((insn >> 21) & 3) | ((insn >> 22) & 4); |
8277 |
if (insn & (1 << 20)) { |
8278 |
/* Load. */
|
8279 |
if (rs == 15 && op != 2) { |
8280 |
if (op & 2) |
8281 |
goto illegal_op;
|
8282 |
/* Memory hint. Implemented as NOP. */
|
8283 |
} else {
|
8284 |
switch (op) {
|
8285 |
case 0: tmp = gen_ld8u(addr, user); break; |
8286 |
case 4: tmp = gen_ld8s(addr, user); break; |
8287 |
case 1: tmp = gen_ld16u(addr, user); break; |
8288 |
case 5: tmp = gen_ld16s(addr, user); break; |
8289 |
case 2: tmp = gen_ld32(addr, user); break; |
8290 |
default: goto illegal_op; |
8291 |
} |
8292 |
if (rs == 15) { |
8293 |
gen_bx(s, tmp); |
8294 |
} else {
|
8295 |
store_reg(s, rs, tmp); |
8296 |
} |
8297 |
} |
8298 |
} else {
|
8299 |
/* Store. */
|
8300 |
if (rs == 15) |
8301 |
goto illegal_op;
|
8302 |
tmp = load_reg(s, rs); |
8303 |
switch (op) {
|
8304 |
case 0: gen_st8(tmp, addr, user); break; |
8305 |
case 1: gen_st16(tmp, addr, user); break; |
8306 |
case 2: gen_st32(tmp, addr, user); break; |
8307 |
default: goto illegal_op; |
8308 |
} |
8309 |
} |
8310 |
if (postinc)
|
8311 |
tcg_gen_addi_i32(addr, addr, imm); |
8312 |
if (writeback) {
|
8313 |
store_reg(s, rn, addr); |
8314 |
} else {
|
8315 |
dead_tmp(addr); |
8316 |
} |
8317 |
} |
8318 |
break;
|
8319 |
default:
|
8320 |
goto illegal_op;
|
8321 |
} |
8322 |
return 0; |
8323 |
illegal_op:
|
8324 |
return 1; |
8325 |
} |
8326 |
|
8327 |
static void disas_thumb_insn(CPUState *env, DisasContext *s) |
8328 |
{ |
8329 |
uint32_t val, insn, op, rm, rn, rd, shift, cond; |
8330 |
int32_t offset; |
8331 |
int i;
|
8332 |
TCGv tmp; |
8333 |
TCGv tmp2; |
8334 |
TCGv addr; |
8335 |
|
8336 |
if (s->condexec_mask) {
|
8337 |
cond = s->condexec_cond; |
8338 |
s->condlabel = gen_new_label(); |
8339 |
gen_test_cc(cond ^ 1, s->condlabel);
|
8340 |
s->condjmp = 1;
|
8341 |
} |
8342 |
|
8343 |
insn = lduw_code(s->pc); |
8344 |
s->pc += 2;
|
8345 |
|
8346 |
switch (insn >> 12) { |
8347 |
case 0: case 1: |
8348 |
|
8349 |
rd = insn & 7;
|
8350 |
op = (insn >> 11) & 3; |
8351 |
if (op == 3) { |
8352 |
/* add/subtract */
|
8353 |
rn = (insn >> 3) & 7; |
8354 |
tmp = load_reg(s, rn); |
8355 |
if (insn & (1 << 10)) { |
8356 |
/* immediate */
|
8357 |
tmp2 = new_tmp(); |
8358 |
tcg_gen_movi_i32(tmp2, (insn >> 6) & 7); |
8359 |
} else {
|
8360 |
/* reg */
|
8361 |
rm = (insn >> 6) & 7; |
8362 |
tmp2 = load_reg(s, rm); |
8363 |
} |
8364 |
if (insn & (1 << 9)) { |
8365 |
if (s->condexec_mask)
|
8366 |
tcg_gen_sub_i32(tmp, tmp, tmp2); |
8367 |
else
|
8368 |
gen_helper_sub_cc(tmp, tmp, tmp2); |
8369 |
} else {
|
8370 |
if (s->condexec_mask)
|
8371 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
8372 |
else
|
8373 |
gen_helper_add_cc(tmp, tmp, tmp2); |
8374 |
} |
8375 |
dead_tmp(tmp2); |
8376 |
store_reg(s, rd, tmp); |
8377 |
} else {
|
8378 |
/* shift immediate */
|
8379 |
rm = (insn >> 3) & 7; |
8380 |
shift = (insn >> 6) & 0x1f; |
8381 |
tmp = load_reg(s, rm); |
8382 |
gen_arm_shift_im(tmp, op, shift, s->condexec_mask == 0);
|
8383 |
if (!s->condexec_mask)
|
8384 |
gen_logic_CC(tmp); |
8385 |
store_reg(s, rd, tmp); |
8386 |
} |
8387 |
break;
|
8388 |
case 2: case 3: |
8389 |
/* arithmetic large immediate */
|
8390 |
op = (insn >> 11) & 3; |
8391 |
rd = (insn >> 8) & 0x7; |
8392 |
if (op == 0) { /* mov */ |
8393 |
tmp = new_tmp(); |
8394 |
tcg_gen_movi_i32(tmp, insn & 0xff);
|
8395 |
if (!s->condexec_mask)
|
8396 |
gen_logic_CC(tmp); |
8397 |
store_reg(s, rd, tmp); |
8398 |
} else {
|
8399 |
tmp = load_reg(s, rd); |
8400 |
tmp2 = new_tmp(); |
8401 |
tcg_gen_movi_i32(tmp2, insn & 0xff);
|
8402 |
switch (op) {
|
8403 |
case 1: /* cmp */ |
8404 |
gen_helper_sub_cc(tmp, tmp, tmp2); |
8405 |
dead_tmp(tmp); |
8406 |
dead_tmp(tmp2); |
8407 |
break;
|
8408 |
case 2: /* add */ |
8409 |
if (s->condexec_mask)
|
8410 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
8411 |
else
|
8412 |
gen_helper_add_cc(tmp, tmp, tmp2); |
8413 |
dead_tmp(tmp2); |
8414 |
store_reg(s, rd, tmp); |
8415 |
break;
|
8416 |
case 3: /* sub */ |
8417 |
if (s->condexec_mask)
|
8418 |
tcg_gen_sub_i32(tmp, tmp, tmp2); |
8419 |
else
|
8420 |
gen_helper_sub_cc(tmp, tmp, tmp2); |
8421 |
dead_tmp(tmp2); |
8422 |
store_reg(s, rd, tmp); |
8423 |
break;
|
8424 |
} |
8425 |
} |
8426 |
break;
|
8427 |
case 4: |
8428 |
if (insn & (1 << 11)) { |
8429 |
rd = (insn >> 8) & 7; |
8430 |
/* load pc-relative. Bit 1 of PC is ignored. */
|
8431 |
val = s->pc + 2 + ((insn & 0xff) * 4); |
8432 |
val &= ~(uint32_t)2;
|
8433 |
addr = new_tmp(); |
8434 |
tcg_gen_movi_i32(addr, val); |
8435 |
tmp = gen_ld32(addr, IS_USER(s)); |
8436 |
dead_tmp(addr); |
8437 |
store_reg(s, rd, tmp); |
8438 |
break;
|
8439 |
} |
8440 |
if (insn & (1 << 10)) { |
8441 |
/* data processing extended or blx */
|
8442 |
rd = (insn & 7) | ((insn >> 4) & 8); |
8443 |
rm = (insn >> 3) & 0xf; |
8444 |
op = (insn >> 8) & 3; |
8445 |
switch (op) {
|
8446 |
case 0: /* add */ |
8447 |
tmp = load_reg(s, rd); |
8448 |
tmp2 = load_reg(s, rm); |
8449 |
tcg_gen_add_i32(tmp, tmp, tmp2); |
8450 |
dead_tmp(tmp2); |
8451 |
store_reg(s, rd, tmp); |
8452 |
break;
|
8453 |
case 1: /* cmp */ |
8454 |
tmp = load_reg(s, rd); |
8455 |
tmp2 = load_reg(s, rm); |
8456 |
gen_helper_sub_cc(tmp, tmp, tmp2); |
8457 |
dead_tmp(tmp2); |
8458 |
dead_tmp(tmp); |
8459 |
break;
|
8460 |
case 2: /* mov/cpy */ |
8461 |
tmp = load_reg(s, rm); |
8462 |
store_reg(s, rd, tmp); |
8463 |
break;
|
8464 |
case 3:/* branch [and link] exchange thumb register */ |
8465 |
tmp = load_reg(s, rm); |
8466 |
if (insn & (1 << 7)) { |
8467 |
val = (uint32_t)s->pc | 1;
|
8468 |
tmp2 = new_tmp(); |
8469 |
tcg_gen_movi_i32(tmp2, val); |
8470 |
store_reg(s, 14, tmp2);
|
8471 |
} |
8472 |
gen_bx(s, tmp); |
8473 |
break;
|
8474 |
} |
8475 |
break;
|
8476 |
} |
8477 |
|
8478 |
/* data processing register */
|
8479 |
rd = insn & 7;
|
8480 |
rm = (insn >> 3) & 7; |
8481 |
op = (insn >> 6) & 0xf; |
8482 |
if (op == 2 || op == 3 || op == 4 || op == 7) { |
8483 |
/* the shift/rotate ops want the operands backwards */
|
8484 |
val = rm; |
8485 |
rm = rd; |
8486 |
rd = val; |
8487 |
val = 1;
|
8488 |
} else {
|
8489 |
val = 0;
|
8490 |
} |
8491 |
|
8492 |
if (op == 9) { /* neg */ |
8493 |
tmp = new_tmp(); |
8494 |
tcg_gen_movi_i32(tmp, 0);
|
8495 |
} else if (op != 0xf) { /* mvn doesn't read its first operand */ |
8496 |
tmp = load_reg(s, rd); |
8497 |
} else {
|
8498 |
TCGV_UNUSED(tmp); |
8499 |
} |
8500 |
|
8501 |
tmp2 = load_reg(s, rm); |
8502 |
switch (op) {
|
8503 |
case 0x0: /* and */ |
8504 |
tcg_gen_and_i32(tmp, tmp, tmp2); |
8505 |
if (!s->condexec_mask)
|
8506 |
gen_logic_CC(tmp); |
8507 |
break;
|
8508 |
case 0x1: /* eor */ |
8509 |
tcg_gen_xor_i32(tmp, tmp, tmp2); |
8510 |
if (!s->condexec_mask)
|
8511 |
gen_logic_CC(tmp); |
8512 |
break;
|
8513 |
case 0x2: /* lsl */ |
8514 |
if (s->condexec_mask) {
|
8515 |
gen_helper_shl(tmp2, tmp2, tmp); |
8516 |
} else {
|
8517 |
gen_helper_shl_cc(tmp2, tmp2, tmp); |
8518 |
gen_logic_CC(tmp2); |
8519 |
} |
8520 |
break;
|
8521 |
case 0x3: /* lsr */ |
8522 |
if (s->condexec_mask) {
|
8523 |
gen_helper_shr(tmp2, tmp2, tmp); |
8524 |
} else {
|
8525 |
gen_helper_shr_cc(tmp2, tmp2, tmp); |
8526 |
gen_logic_CC(tmp2); |
8527 |
} |
8528 |
break;
|
8529 |
case 0x4: /* asr */ |
8530 |
if (s->condexec_mask) {
|
8531 |
gen_helper_sar(tmp2, tmp2, tmp); |
8532 |
} else {
|
8533 |
gen_helper_sar_cc(tmp2, tmp2, tmp); |
8534 |
gen_logic_CC(tmp2); |
8535 |
} |
8536 |
break;
|
8537 |
case 0x5: /* adc */ |
8538 |
if (s->condexec_mask)
|
8539 |
gen_adc(tmp, tmp2); |
8540 |
else
|
8541 |
gen_helper_adc_cc(tmp, tmp, tmp2); |
8542 |
break;
|
8543 |
case 0x6: /* sbc */ |
8544 |
if (s->condexec_mask)
|
8545 |
gen_sub_carry(tmp, tmp, tmp2); |
8546 |
else
|
8547 |
gen_helper_sbc_cc(tmp, tmp, tmp2); |
8548 |
break;
|
8549 |
case 0x7: /* ror */ |
8550 |
if (s->condexec_mask) {
|
8551 |
tcg_gen_andi_i32(tmp, tmp, 0x1f);
|
8552 |
tcg_gen_rotr_i32(tmp2, tmp2, tmp); |
8553 |
} else {
|
8554 |
gen_helper_ror_cc(tmp2, tmp2, tmp); |
8555 |
gen_logic_CC(tmp2); |
8556 |
} |
8557 |
break;
|
8558 |
case 0x8: /* tst */ |
8559 |
tcg_gen_and_i32(tmp, tmp, tmp2); |
8560 |
gen_logic_CC(tmp); |
8561 |
rd = 16;
|
8562 |
break;
|
8563 |
case 0x9: /* neg */ |
8564 |
if (s->condexec_mask)
|
8565 |
tcg_gen_neg_i32(tmp, tmp2); |
8566 |
else
|
8567 |
gen_helper_sub_cc(tmp, tmp, tmp2); |
8568 |
break;
|
8569 |
case 0xa: /* cmp */ |
8570 |
gen_helper_sub_cc(tmp, tmp, tmp2); |
8571 |
rd = 16;
|
8572 |
break;
|
8573 |
case 0xb: /* cmn */ |
8574 |
gen_helper_add_cc(tmp, tmp, tmp2); |
8575 |
rd = 16;
|
8576 |
break;
|
8577 |
case 0xc: /* orr */ |
8578 |
tcg_gen_or_i32(tmp, tmp, tmp2); |
8579 |
if (!s->condexec_mask)
|
8580 |
gen_logic_CC(tmp); |
8581 |
break;
|
8582 |
case 0xd: /* mul */ |
8583 |
tcg_gen_mul_i32(tmp, tmp, tmp2); |
8584 |
if (!s->condexec_mask)
|
8585 |
gen_logic_CC(tmp); |
8586 |
break;
|
8587 |
case 0xe: /* bic */ |
8588 |
tcg_gen_andc_i32(tmp, tmp, tmp2); |
8589 |
if (!s->condexec_mask)
|
8590 |
gen_logic_CC(tmp); |
8591 |
break;
|
8592 |
case 0xf: /* mvn */ |
8593 |
tcg_gen_not_i32(tmp2, tmp2); |
8594 |
if (!s->condexec_mask)
|
8595 |
gen_logic_CC(tmp2); |
8596 |
val = 1;
|
8597 |
rm = rd; |
8598 |
break;
|
8599 |
} |
8600 |
if (rd != 16) { |
8601 |
if (val) {
|
8602 |
store_reg(s, rm, tmp2); |
8603 |
if (op != 0xf) |
8604 |
dead_tmp(tmp); |
8605 |
} else {
|
8606 |
store_reg(s, rd, tmp); |
8607 |
dead_tmp(tmp2); |
8608 |
} |
8609 |
} else {
|
8610 |
dead_tmp(tmp); |
8611 |
dead_tmp(tmp2); |
8612 |
} |
8613 |
break;
|
8614 |
|
8615 |
case 5: |
8616 |
/* load/store register offset. */
|
8617 |
rd = insn & 7;
|
8618 |
rn = (insn >> 3) & 7; |
8619 |
rm = (insn >> 6) & 7; |
8620 |
op = (insn >> 9) & 7; |
8621 |
addr = load_reg(s, rn); |
8622 |
tmp = load_reg(s, rm); |
8623 |
tcg_gen_add_i32(addr, addr, tmp); |
8624 |
dead_tmp(tmp); |
8625 |
|
8626 |
if (op < 3) /* store */ |
8627 |
tmp = load_reg(s, rd); |
8628 |
|
8629 |
switch (op) {
|
8630 |
case 0: /* str */ |
8631 |
gen_st32(tmp, addr, IS_USER(s)); |
8632 |
break;
|
8633 |
case 1: /* strh */ |
8634 |
gen_st16(tmp, addr, IS_USER(s)); |
8635 |
break;
|
8636 |
case 2: /* strb */ |
8637 |
gen_st8(tmp, addr, IS_USER(s)); |
8638 |
break;
|
8639 |
case 3: /* ldrsb */ |
8640 |
tmp = gen_ld8s(addr, IS_USER(s)); |
8641 |
break;
|
8642 |
case 4: /* ldr */ |
8643 |
tmp = gen_ld32(addr, IS_USER(s)); |
8644 |
break;
|
8645 |
case 5: /* ldrh */ |
8646 |
tmp = gen_ld16u(addr, IS_USER(s)); |
8647 |
break;
|
8648 |
case 6: /* ldrb */ |
8649 |
tmp = gen_ld8u(addr, IS_USER(s)); |
8650 |
break;
|
8651 |
case 7: /* ldrsh */ |
8652 |
tmp = gen_ld16s(addr, IS_USER(s)); |
8653 |
break;
|
8654 |
} |
8655 |
if (op >= 3) /* load */ |
8656 |
store_reg(s, rd, tmp); |
8657 |
dead_tmp(addr); |
8658 |
break;
|
8659 |
|
8660 |
case 6: |
8661 |
/* load/store word immediate offset */
|
8662 |
rd = insn & 7;
|
8663 |
rn = (insn >> 3) & 7; |
8664 |
addr = load_reg(s, rn); |
8665 |
val = (insn >> 4) & 0x7c; |
8666 |
tcg_gen_addi_i32(addr, addr, val); |
8667 |
|
8668 |
if (insn & (1 << 11)) { |
8669 |
/* load */
|
8670 |
tmp = gen_ld32(addr, IS_USER(s)); |
8671 |
store_reg(s, rd, tmp); |
8672 |
} else {
|
8673 |
/* store */
|
8674 |
tmp = load_reg(s, rd); |
8675 |
gen_st32(tmp, addr, IS_USER(s)); |
8676 |
} |
8677 |
dead_tmp(addr); |
8678 |
break;
|
8679 |
|
8680 |
case 7: |
8681 |
/* load/store byte immediate offset */
|
8682 |
rd = insn & 7;
|
8683 |
rn = (insn >> 3) & 7; |
8684 |
addr = load_reg(s, rn); |
8685 |
val = (insn >> 6) & 0x1f; |
8686 |
tcg_gen_addi_i32(addr, addr, val); |
8687 |
|
8688 |
if (insn & (1 << 11)) { |
8689 |
/* load */
|
8690 |
tmp = gen_ld8u(addr, IS_USER(s)); |
8691 |
store_reg(s, rd, tmp); |
8692 |
} else {
|
8693 |
/* store */
|
8694 |
tmp = load_reg(s, rd); |
8695 |
gen_st8(tmp, addr, IS_USER(s)); |
8696 |
} |
8697 |
dead_tmp(addr); |
8698 |
break;
|
8699 |
|
8700 |
case 8: |
8701 |
/* load/store halfword immediate offset */
|
8702 |
rd = insn & 7;
|
8703 |
rn = (insn >> 3) & 7; |
8704 |
addr = load_reg(s, rn); |
8705 |
val = (insn >> 5) & 0x3e; |
8706 |
tcg_gen_addi_i32(addr, addr, val); |
8707 |
|
8708 |
if (insn & (1 << 11)) { |
8709 |
/* load */
|
8710 |
tmp = gen_ld16u(addr, IS_USER(s)); |
8711 |
store_reg(s, rd, tmp); |
8712 |
} else {
|
8713 |
/* store */
|
8714 |
tmp = load_reg(s, rd); |
8715 |
gen_st16(tmp, addr, IS_USER(s)); |
8716 |
} |
8717 |
dead_tmp(addr); |
8718 |
break;
|
8719 |
|
8720 |
case 9: |
8721 |
/* load/store from stack */
|
8722 |
rd = (insn >> 8) & 7; |
8723 |
addr = load_reg(s, 13);
|
8724 |
val = (insn & 0xff) * 4; |
8725 |
tcg_gen_addi_i32(addr, addr, val); |
8726 |
|
8727 |
if (insn & (1 << 11)) { |
8728 |
/* load */
|
8729 |
tmp = gen_ld32(addr, IS_USER(s)); |
8730 |
store_reg(s, rd, tmp); |
8731 |
} else {
|
8732 |
/* store */
|
8733 |
tmp = load_reg(s, rd); |
8734 |
gen_st32(tmp, addr, IS_USER(s)); |
8735 |
} |
8736 |
dead_tmp(addr); |
8737 |
break;
|
8738 |
|
8739 |
case 10: |
8740 |
/* add to high reg */
|
8741 |
rd = (insn >> 8) & 7; |
8742 |
if (insn & (1 << 11)) { |
8743 |
/* SP */
|
8744 |
tmp = load_reg(s, 13);
|
8745 |
} else {
|
8746 |
/* PC. bit 1 is ignored. */
|
8747 |
tmp = new_tmp(); |
8748 |
tcg_gen_movi_i32(tmp, (s->pc + 2) & ~(uint32_t)2); |
8749 |
} |
8750 |
val = (insn & 0xff) * 4; |
8751 |
tcg_gen_addi_i32(tmp, tmp, val); |
8752 |
store_reg(s, rd, tmp); |
8753 |
break;
|
8754 |
|
8755 |
case 11: |
8756 |
/* misc */
|
8757 |
op = (insn >> 8) & 0xf; |
8758 |
switch (op) {
|
8759 |
case 0: |
8760 |
/* adjust stack pointer */
|
8761 |
tmp = load_reg(s, 13);
|
8762 |
val = (insn & 0x7f) * 4; |
8763 |
if (insn & (1 << 7)) |
8764 |
val = -(int32_t)val; |
8765 |
tcg_gen_addi_i32(tmp, tmp, val); |
8766 |
store_reg(s, 13, tmp);
|
8767 |
break;
|
8768 |
|
8769 |
case 2: /* sign/zero extend. */ |
8770 |
ARCH(6);
|
8771 |
rd = insn & 7;
|
8772 |
rm = (insn >> 3) & 7; |
8773 |
tmp = load_reg(s, rm); |
8774 |
switch ((insn >> 6) & 3) { |
8775 |
case 0: gen_sxth(tmp); break; |
8776 |
case 1: gen_sxtb(tmp); break; |
8777 |
case 2: gen_uxth(tmp); break; |
8778 |
case 3: gen_uxtb(tmp); break; |
8779 |
} |
8780 |
store_reg(s, rd, tmp); |
8781 |
break;
|
8782 |
case 4: case 5: case 0xc: case 0xd: |
8783 |
/* push/pop */
|
8784 |
addr = load_reg(s, 13);
|
8785 |
if (insn & (1 << 8)) |
8786 |
offset = 4;
|
8787 |
else
|
8788 |
offset = 0;
|
8789 |
for (i = 0; i < 8; i++) { |
8790 |
if (insn & (1 << i)) |
8791 |
offset += 4;
|
8792 |
} |
8793 |
if ((insn & (1 << 11)) == 0) { |
8794 |
tcg_gen_addi_i32(addr, addr, -offset); |
8795 |
} |
8796 |
for (i = 0; i < 8; i++) { |
8797 |
if (insn & (1 << i)) { |
8798 |
if (insn & (1 << 11)) { |
8799 |
/* pop */
|
8800 |
tmp = gen_ld32(addr, IS_USER(s)); |
8801 |
store_reg(s, i, tmp); |
8802 |
} else {
|
8803 |
/* push */
|
8804 |
tmp = load_reg(s, i); |
8805 |
gen_st32(tmp, addr, IS_USER(s)); |
8806 |
} |
8807 |
/* advance to the next address. */
|
8808 |
tcg_gen_addi_i32(addr, addr, 4);
|
8809 |
} |
8810 |
} |
8811 |
TCGV_UNUSED(tmp); |
8812 |
if (insn & (1 << 8)) { |
8813 |
if (insn & (1 << 11)) { |
8814 |
/* pop pc */
|
8815 |
tmp = gen_ld32(addr, IS_USER(s)); |
8816 |
/* don't set the pc until the rest of the instruction
|
8817 |
has completed */
|
8818 |
} else {
|
8819 |
/* push lr */
|
8820 |
tmp = load_reg(s, 14);
|
8821 |
gen_st32(tmp, addr, IS_USER(s)); |
8822 |
} |
8823 |
tcg_gen_addi_i32(addr, addr, 4);
|
8824 |
} |
8825 |
if ((insn & (1 << 11)) == 0) { |
8826 |
tcg_gen_addi_i32(addr, addr, -offset); |
8827 |
} |
8828 |
/* write back the new stack pointer */
|
8829 |
store_reg(s, 13, addr);
|
8830 |
/* set the new PC value */
|
8831 |
if ((insn & 0x0900) == 0x0900) |
8832 |
gen_bx(s, tmp); |
8833 |
break;
|
8834 |
|
8835 |
case 1: case 3: case 9: case 11: /* czb */ |
8836 |
rm = insn & 7;
|
8837 |
tmp = load_reg(s, rm); |
8838 |
s->condlabel = gen_new_label(); |
8839 |
s->condjmp = 1;
|
8840 |
if (insn & (1 << 11)) |
8841 |
tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, s->condlabel);
|
8842 |
else
|
8843 |
tcg_gen_brcondi_i32(TCG_COND_NE, tmp, 0, s->condlabel);
|
8844 |
dead_tmp(tmp); |
8845 |
offset = ((insn & 0xf8) >> 2) | (insn & 0x200) >> 3; |
8846 |
val = (uint32_t)s->pc + 2;
|
8847 |
val += offset; |
8848 |
gen_jmp(s, val); |
8849 |
break;
|
8850 |
|
8851 |
case 15: /* IT, nop-hint. */ |
8852 |
if ((insn & 0xf) == 0) { |
8853 |
gen_nop_hint(s, (insn >> 4) & 0xf); |
8854 |
break;
|
8855 |
} |
8856 |
/* If Then. */
|
8857 |
s->condexec_cond = (insn >> 4) & 0xe; |
8858 |
s->condexec_mask = insn & 0x1f;
|
8859 |
/* No actual code generated for this insn, just setup state. */
|
8860 |
break;
|
8861 |
|
8862 |
case 0xe: /* bkpt */ |
8863 |
gen_set_condexec(s); |
8864 |
gen_set_pc_im(s->pc - 2);
|
8865 |
gen_exception(EXCP_BKPT); |
8866 |
s->is_jmp = DISAS_JUMP; |
8867 |
break;
|
8868 |
|
8869 |
case 0xa: /* rev */ |
8870 |
ARCH(6);
|
8871 |
rn = (insn >> 3) & 0x7; |
8872 |
rd = insn & 0x7;
|
8873 |
tmp = load_reg(s, rn); |
8874 |
switch ((insn >> 6) & 3) { |
8875 |
case 0: tcg_gen_bswap32_i32(tmp, tmp); break; |
8876 |
case 1: gen_rev16(tmp); break; |
8877 |
case 3: gen_revsh(tmp); break; |
8878 |
default: goto illegal_op; |
8879 |
} |
8880 |
store_reg(s, rd, tmp); |
8881 |
break;
|
8882 |
|
8883 |
case 6: /* cps */ |
8884 |
ARCH(6);
|
8885 |
if (IS_USER(s))
|
8886 |
break;
|
8887 |
if (IS_M(env)) {
|
8888 |
tmp = tcg_const_i32((insn & (1 << 4)) != 0); |
8889 |
/* PRIMASK */
|
8890 |
if (insn & 1) { |
8891 |
addr = tcg_const_i32(16);
|
8892 |
gen_helper_v7m_msr(cpu_env, addr, tmp); |
8893 |
tcg_temp_free_i32(addr); |
8894 |
} |
8895 |
/* FAULTMASK */
|
8896 |
if (insn & 2) { |
8897 |
addr = tcg_const_i32(17);
|
8898 |
gen_helper_v7m_msr(cpu_env, addr, tmp); |
8899 |
tcg_temp_free_i32(addr); |
8900 |
} |
8901 |
tcg_temp_free_i32(tmp); |
8902 |
gen_lookup_tb(s); |
8903 |
} else {
|
8904 |
if (insn & (1 << 4)) |
8905 |
shift = CPSR_A | CPSR_I | CPSR_F; |
8906 |
else
|
8907 |
shift = 0;
|
8908 |
gen_set_psr_im(s, ((insn & 7) << 6), 0, shift); |
8909 |
} |
8910 |
break;
|
8911 |
|
8912 |
default:
|
8913 |
goto undef;
|
8914 |
} |
8915 |
break;
|
8916 |
|
8917 |
case 12: |
8918 |
/* load/store multiple */
|
8919 |
rn = (insn >> 8) & 0x7; |
8920 |
addr = load_reg(s, rn); |
8921 |
for (i = 0; i < 8; i++) { |
8922 |
if (insn & (1 << i)) { |
8923 |
if (insn & (1 << 11)) { |
8924 |
/* load */
|
8925 |
tmp = gen_ld32(addr, IS_USER(s)); |
8926 |
store_reg(s, i, tmp); |
8927 |
} else {
|
8928 |
/* store */
|
8929 |
tmp = load_reg(s, i); |
8930 |
gen_st32(tmp, addr, IS_USER(s)); |
8931 |
} |
8932 |
/* advance to the next address */
|
8933 |
tcg_gen_addi_i32(addr, addr, 4);
|
8934 |
} |
8935 |
} |
8936 |
/* Base register writeback. */
|
8937 |
if ((insn & (1 << rn)) == 0) { |
8938 |
store_reg(s, rn, addr); |
8939 |
} else {
|
8940 |
dead_tmp(addr); |
8941 |
} |
8942 |
break;
|
8943 |
|
8944 |
case 13: |
8945 |
/* conditional branch or swi */
|
8946 |
cond = (insn >> 8) & 0xf; |
8947 |
if (cond == 0xe) |
8948 |
goto undef;
|
8949 |
|
8950 |
if (cond == 0xf) { |
8951 |
/* swi */
|
8952 |
gen_set_condexec(s); |
8953 |
gen_set_pc_im(s->pc); |
8954 |
s->is_jmp = DISAS_SWI; |
8955 |
break;
|
8956 |
} |
8957 |
/* generate a conditional jump to next instruction */
|
8958 |
s->condlabel = gen_new_label(); |
8959 |
gen_test_cc(cond ^ 1, s->condlabel);
|
8960 |
s->condjmp = 1;
|
8961 |
|
8962 |
/* jump to the offset */
|
8963 |
val = (uint32_t)s->pc + 2;
|
8964 |
offset = ((int32_t)insn << 24) >> 24; |
8965 |
val += offset << 1;
|
8966 |
gen_jmp(s, val); |
8967 |
break;
|
8968 |
|
8969 |
case 14: |
8970 |
if (insn & (1 << 11)) { |
8971 |
if (disas_thumb2_insn(env, s, insn))
|
8972 |
goto undef32;
|
8973 |
break;
|
8974 |
} |
8975 |
/* unconditional branch */
|
8976 |
val = (uint32_t)s->pc; |
8977 |
offset = ((int32_t)insn << 21) >> 21; |
8978 |
val += (offset << 1) + 2; |
8979 |
gen_jmp(s, val); |
8980 |
break;
|
8981 |
|
8982 |
case 15: |
8983 |
if (disas_thumb2_insn(env, s, insn))
|
8984 |
goto undef32;
|
8985 |
break;
|
8986 |
} |
8987 |
return;
|
8988 |
undef32:
|
8989 |
gen_set_condexec(s); |
8990 |
gen_set_pc_im(s->pc - 4);
|
8991 |
gen_exception(EXCP_UDEF); |
8992 |
s->is_jmp = DISAS_JUMP; |
8993 |
return;
|
8994 |
illegal_op:
|
8995 |
undef:
|
8996 |
gen_set_condexec(s); |
8997 |
gen_set_pc_im(s->pc - 2);
|
8998 |
gen_exception(EXCP_UDEF); |
8999 |
s->is_jmp = DISAS_JUMP; |
9000 |
} |
9001 |
|
9002 |
/* generate intermediate code in gen_opc_buf and gen_opparam_buf for
|
9003 |
basic block 'tb'. If search_pc is TRUE, also generate PC
|
9004 |
information for each intermediate instruction. */
|
9005 |
static inline void gen_intermediate_code_internal(CPUState *env, |
9006 |
TranslationBlock *tb, |
9007 |
int search_pc)
|
9008 |
{ |
9009 |
DisasContext dc1, *dc = &dc1; |
9010 |
CPUBreakpoint *bp; |
9011 |
uint16_t *gen_opc_end; |
9012 |
int j, lj;
|
9013 |
target_ulong pc_start; |
9014 |
uint32_t next_page_start; |
9015 |
int num_insns;
|
9016 |
int max_insns;
|
9017 |
|
9018 |
/* generate intermediate code */
|
9019 |
num_temps = 0;
|
9020 |
|
9021 |
pc_start = tb->pc; |
9022 |
|
9023 |
dc->tb = tb; |
9024 |
|
9025 |
gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; |
9026 |
|
9027 |
dc->is_jmp = DISAS_NEXT; |
9028 |
dc->pc = pc_start; |
9029 |
dc->singlestep_enabled = env->singlestep_enabled; |
9030 |
dc->condjmp = 0;
|
9031 |
dc->thumb = env->thumb; |
9032 |
dc->condexec_mask = (env->condexec_bits & 0xf) << 1; |
9033 |
dc->condexec_cond = env->condexec_bits >> 4;
|
9034 |
#if !defined(CONFIG_USER_ONLY)
|
9035 |
if (IS_M(env)) {
|
9036 |
dc->user = ((env->v7m.exception == 0) && (env->v7m.control & 1)); |
9037 |
} else {
|
9038 |
dc->user = (env->uncached_cpsr & 0x1f) == ARM_CPU_MODE_USR;
|
9039 |
} |
9040 |
#endif
|
9041 |
cpu_F0s = tcg_temp_new_i32(); |
9042 |
cpu_F1s = tcg_temp_new_i32(); |
9043 |
cpu_F0d = tcg_temp_new_i64(); |
9044 |
cpu_F1d = tcg_temp_new_i64(); |
9045 |
cpu_V0 = cpu_F0d; |
9046 |
cpu_V1 = cpu_F1d; |
9047 |
/* FIXME: cpu_M0 can probably be the same as cpu_V0. */
|
9048 |
cpu_M0 = tcg_temp_new_i64(); |
9049 |
next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE; |
9050 |
lj = -1;
|
9051 |
num_insns = 0;
|
9052 |
max_insns = tb->cflags & CF_COUNT_MASK; |
9053 |
if (max_insns == 0) |
9054 |
max_insns = CF_COUNT_MASK; |
9055 |
|
9056 |
gen_icount_start(); |
9057 |
/* Reset the conditional execution bits immediately. This avoids
|
9058 |
complications trying to do it at the end of the block. */
|
9059 |
if (env->condexec_bits)
|
9060 |
{ |
9061 |
TCGv tmp = new_tmp(); |
9062 |
tcg_gen_movi_i32(tmp, 0);
|
9063 |
store_cpu_field(tmp, condexec_bits); |
9064 |
} |
9065 |
do {
|
9066 |
#ifdef CONFIG_USER_ONLY
|
9067 |
/* Intercept jump to the magic kernel page. */
|
9068 |
if (dc->pc >= 0xffff0000) { |
9069 |
/* We always get here via a jump, so know we are not in a
|
9070 |
conditional execution block. */
|
9071 |
gen_exception(EXCP_KERNEL_TRAP); |
9072 |
dc->is_jmp = DISAS_UPDATE; |
9073 |
break;
|
9074 |
} |
9075 |
#else
|
9076 |
if (dc->pc >= 0xfffffff0 && IS_M(env)) { |
9077 |
/* We always get here via a jump, so know we are not in a
|
9078 |
conditional execution block. */
|
9079 |
gen_exception(EXCP_EXCEPTION_EXIT); |
9080 |
dc->is_jmp = DISAS_UPDATE; |
9081 |
break;
|
9082 |
} |
9083 |
#endif
|
9084 |
|
9085 |
if (unlikely(!QTAILQ_EMPTY(&env->breakpoints))) {
|
9086 |
QTAILQ_FOREACH(bp, &env->breakpoints, entry) { |
9087 |
if (bp->pc == dc->pc) {
|
9088 |
gen_set_condexec(dc); |
9089 |
gen_set_pc_im(dc->pc); |
9090 |
gen_exception(EXCP_DEBUG); |
9091 |
dc->is_jmp = DISAS_JUMP; |
9092 |
/* Advance PC so that clearing the breakpoint will
|
9093 |
invalidate this TB. */
|
9094 |
dc->pc += 2;
|
9095 |
goto done_generating;
|
9096 |
break;
|
9097 |
} |
9098 |
} |
9099 |
} |
9100 |
if (search_pc) {
|
9101 |
j = gen_opc_ptr - gen_opc_buf; |
9102 |
if (lj < j) {
|
9103 |
lj++; |
9104 |
while (lj < j)
|
9105 |
gen_opc_instr_start[lj++] = 0;
|
9106 |
} |
9107 |
gen_opc_pc[lj] = dc->pc; |
9108 |
gen_opc_instr_start[lj] = 1;
|
9109 |
gen_opc_icount[lj] = num_insns; |
9110 |
} |
9111 |
|
9112 |
if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO)) |
9113 |
gen_io_start(); |
9114 |
|
9115 |
if (env->thumb) {
|
9116 |
disas_thumb_insn(env, dc); |
9117 |
if (dc->condexec_mask) {
|
9118 |
dc->condexec_cond = (dc->condexec_cond & 0xe)
|
9119 |
| ((dc->condexec_mask >> 4) & 1); |
9120 |
dc->condexec_mask = (dc->condexec_mask << 1) & 0x1f; |
9121 |
if (dc->condexec_mask == 0) { |
9122 |
dc->condexec_cond = 0;
|
9123 |
} |
9124 |
} |
9125 |
} else {
|
9126 |
disas_arm_insn(env, dc); |
9127 |
} |
9128 |
if (num_temps) {
|
9129 |
fprintf(stderr, "Internal resource leak before %08x\n", dc->pc);
|
9130 |
num_temps = 0;
|
9131 |
} |
9132 |
|
9133 |
if (dc->condjmp && !dc->is_jmp) {
|
9134 |
gen_set_label(dc->condlabel); |
9135 |
dc->condjmp = 0;
|
9136 |
} |
9137 |
/* Translation stops when a conditional branch is encountered.
|
9138 |
* Otherwise the subsequent code could get translated several times.
|
9139 |
* Also stop translation when a page boundary is reached. This
|
9140 |
* ensures prefetch aborts occur at the right place. */
|
9141 |
num_insns ++; |
9142 |
} while (!dc->is_jmp && gen_opc_ptr < gen_opc_end &&
|
9143 |
!env->singlestep_enabled && |
9144 |
!singlestep && |
9145 |
dc->pc < next_page_start && |
9146 |
num_insns < max_insns); |
9147 |
|
9148 |
if (tb->cflags & CF_LAST_IO) {
|
9149 |
if (dc->condjmp) {
|
9150 |
/* FIXME: This can theoretically happen with self-modifying
|
9151 |
code. */
|
9152 |
cpu_abort(env, "IO on conditional branch instruction");
|
9153 |
} |
9154 |
gen_io_end(); |
9155 |
} |
9156 |
|
9157 |
/* At this stage dc->condjmp will only be set when the skipped
|
9158 |
instruction was a conditional branch or trap, and the PC has
|
9159 |
already been written. */
|
9160 |
if (unlikely(env->singlestep_enabled)) {
|
9161 |
/* Make sure the pc is updated, and raise a debug exception. */
|
9162 |
if (dc->condjmp) {
|
9163 |
gen_set_condexec(dc); |
9164 |
if (dc->is_jmp == DISAS_SWI) {
|
9165 |
gen_exception(EXCP_SWI); |
9166 |
} else {
|
9167 |
gen_exception(EXCP_DEBUG); |
9168 |
} |
9169 |
gen_set_label(dc->condlabel); |
9170 |
} |
9171 |
if (dc->condjmp || !dc->is_jmp) {
|
9172 |
gen_set_pc_im(dc->pc); |
9173 |
dc->condjmp = 0;
|
9174 |
} |
9175 |
gen_set_condexec(dc); |
9176 |
if (dc->is_jmp == DISAS_SWI && !dc->condjmp) {
|
9177 |
gen_exception(EXCP_SWI); |
9178 |
} else {
|
9179 |
/* FIXME: Single stepping a WFI insn will not halt
|
9180 |
the CPU. */
|
9181 |
gen_exception(EXCP_DEBUG); |
9182 |
} |
9183 |
} else {
|
9184 |
/* While branches must always occur at the end of an IT block,
|
9185 |
there are a few other things that can cause us to terminate
|
9186 |
the TB in the middel of an IT block:
|
9187 |
- Exception generating instructions (bkpt, swi, undefined).
|
9188 |
- Page boundaries.
|
9189 |
- Hardware watchpoints.
|
9190 |
Hardware breakpoints have already been handled and skip this code.
|
9191 |
*/
|
9192 |
gen_set_condexec(dc); |
9193 |
switch(dc->is_jmp) {
|
9194 |
case DISAS_NEXT:
|
9195 |
gen_goto_tb(dc, 1, dc->pc);
|
9196 |
break;
|
9197 |
default:
|
9198 |
case DISAS_JUMP:
|
9199 |
case DISAS_UPDATE:
|
9200 |
/* indicate that the hash table must be used to find the next TB */
|
9201 |
tcg_gen_exit_tb(0);
|
9202 |
break;
|
9203 |
case DISAS_TB_JUMP:
|
9204 |
/* nothing more to generate */
|
9205 |
break;
|
9206 |
case DISAS_WFI:
|
9207 |
gen_helper_wfi(); |
9208 |
break;
|
9209 |
case DISAS_SWI:
|
9210 |
gen_exception(EXCP_SWI); |
9211 |
break;
|
9212 |
} |
9213 |
if (dc->condjmp) {
|
9214 |
gen_set_label(dc->condlabel); |
9215 |
gen_set_condexec(dc); |
9216 |
gen_goto_tb(dc, 1, dc->pc);
|
9217 |
dc->condjmp = 0;
|
9218 |
} |
9219 |
} |
9220 |
|
9221 |
done_generating:
|
9222 |
gen_icount_end(tb, num_insns); |
9223 |
*gen_opc_ptr = INDEX_op_end; |
9224 |
|
9225 |
#ifdef DEBUG_DISAS
|
9226 |
if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
|
9227 |
qemu_log("----------------\n");
|
9228 |
qemu_log("IN: %s\n", lookup_symbol(pc_start));
|
9229 |
log_target_disas(pc_start, dc->pc - pc_start, env->thumb); |
9230 |
qemu_log("\n");
|
9231 |
} |
9232 |
#endif
|
9233 |
if (search_pc) {
|
9234 |
j = gen_opc_ptr - gen_opc_buf; |
9235 |
lj++; |
9236 |
while (lj <= j)
|
9237 |
gen_opc_instr_start[lj++] = 0;
|
9238 |
} else {
|
9239 |
tb->size = dc->pc - pc_start; |
9240 |
tb->icount = num_insns; |
9241 |
} |
9242 |
} |
9243 |
|
9244 |
void gen_intermediate_code(CPUState *env, TranslationBlock *tb)
|
9245 |
{ |
9246 |
gen_intermediate_code_internal(env, tb, 0);
|
9247 |
} |
9248 |
|
9249 |
void gen_intermediate_code_pc(CPUState *env, TranslationBlock *tb)
|
9250 |
{ |
9251 |
gen_intermediate_code_internal(env, tb, 1);
|
9252 |
} |
9253 |
|
9254 |
static const char *cpu_mode_names[16] = { |
9255 |
"usr", "fiq", "irq", "svc", "???", "???", "???", "abt", |
9256 |
"???", "???", "???", "und", "???", "???", "???", "sys" |
9257 |
}; |
9258 |
|
9259 |
void cpu_dump_state(CPUState *env, FILE *f,
|
9260 |
int (*cpu_fprintf)(FILE *f, const char *fmt, ...), |
9261 |
int flags)
|
9262 |
{ |
9263 |
int i;
|
9264 |
#if 0
|
9265 |
union {
|
9266 |
uint32_t i;
|
9267 |
float s;
|
9268 |
} s0, s1;
|
9269 |
CPU_DoubleU d;
|
9270 |
/* ??? This assumes float64 and double have the same layout.
|
9271 |
Oh well, it's only debug dumps. */
|
9272 |
union {
|
9273 |
float64 f64;
|
9274 |
double d;
|
9275 |
} d0;
|
9276 |
#endif
|
9277 |
uint32_t psr; |
9278 |
|
9279 |
for(i=0;i<16;i++) { |
9280 |
cpu_fprintf(f, "R%02d=%08x", i, env->regs[i]);
|
9281 |
if ((i % 4) == 3) |
9282 |
cpu_fprintf(f, "\n");
|
9283 |
else
|
9284 |
cpu_fprintf(f, " ");
|
9285 |
} |
9286 |
psr = cpsr_read(env); |
9287 |
cpu_fprintf(f, "PSR=%08x %c%c%c%c %c %s%d\n",
|
9288 |
psr, |
9289 |
psr & (1 << 31) ? 'N' : '-', |
9290 |
psr & (1 << 30) ? 'Z' : '-', |
9291 |
psr & (1 << 29) ? 'C' : '-', |
9292 |
psr & (1 << 28) ? 'V' : '-', |
9293 |
psr & CPSR_T ? 'T' : 'A', |
9294 |
cpu_mode_names[psr & 0xf], (psr & 0x10) ? 32 : 26); |
9295 |
|
9296 |
#if 0
|
9297 |
for (i = 0; i < 16; i++) {
|
9298 |
d.d = env->vfp.regs[i];
|
9299 |
s0.i = d.l.lower;
|
9300 |
s1.i = d.l.upper;
|
9301 |
d0.f64 = d.d;
|
9302 |
cpu_fprintf(f, "s%02d=%08x(%8g) s%02d=%08x(%8g) d%02d=%08x%08x(%8g)\n",
|
9303 |
i * 2, (int)s0.i, s0.s,
|
9304 |
i * 2 + 1, (int)s1.i, s1.s,
|
9305 |
i, (int)(uint32_t)d.l.upper, (int)(uint32_t)d.l.lower,
|
9306 |
d0.d);
|
9307 |
}
|
9308 |
cpu_fprintf(f, "FPSCR: %08x\n", (int)env->vfp.xregs[ARM_VFP_FPSCR]);
|
9309 |
#endif
|
9310 |
} |
9311 |
|
9312 |
void gen_pc_load(CPUState *env, TranslationBlock *tb,
|
9313 |
unsigned long searched_pc, int pc_pos, void *puc) |
9314 |
{ |
9315 |
env->regs[15] = gen_opc_pc[pc_pos];
|
9316 |
} |