root / target-openrisc / translate.c @ 5cd8f621
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/*
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* OpenRISC translation
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*
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* Copyright (c) 2011-2012 Jia Liu <proljc@gmail.com>
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* Feng Gao <gf91597@gmail.com>
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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 "cpu.h" |
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#include "exec/exec-all.h" |
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#include "disas/disas.h" |
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#include "tcg-op.h" |
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#include "qemu-common.h" |
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#include "qemu/log.h" |
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#include "config.h" |
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#include "qemu/bitops.h" |
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|
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#include "helper.h" |
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#define GEN_HELPER 1 |
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#include "helper.h" |
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|
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#define OPENRISC_DISAS
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|
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#ifdef OPENRISC_DISAS
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# define LOG_DIS(...) qemu_log_mask(CPU_LOG_TB_IN_ASM, ## __VA_ARGS__) |
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#else
|
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# define LOG_DIS(...) do { } while (0) |
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#endif
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|
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typedef struct DisasContext { |
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TranslationBlock *tb; |
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target_ulong pc, ppc, npc; |
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uint32_t tb_flags, synced_flags, flags; |
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uint32_t is_jmp; |
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uint32_t mem_idx; |
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int singlestep_enabled;
|
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uint32_t delayed_branch; |
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} DisasContext; |
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|
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static TCGv_ptr cpu_env;
|
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static TCGv cpu_sr;
|
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static TCGv cpu_R[32]; |
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static TCGv cpu_pc;
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static TCGv jmp_pc; /* l.jr/l.jalr temp pc */ |
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static TCGv cpu_npc;
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static TCGv cpu_ppc;
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static TCGv_i32 env_btaken; /* bf/bnf , F flag taken */ |
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static TCGv_i32 fpcsr;
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static TCGv machi, maclo;
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static TCGv fpmaddhi, fpmaddlo;
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static TCGv_i32 env_flags;
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#include "exec/gen-icount.h" |
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|
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void openrisc_translate_init(void) |
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{
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static const char * const regnames[] = { |
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"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", |
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"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", |
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"r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", |
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"r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", |
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}; |
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int i;
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|
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cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
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cpu_sr = tcg_global_mem_new(TCG_AREG0, |
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offsetof(CPUOpenRISCState, sr), "sr");
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env_flags = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUOpenRISCState, flags), |
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"flags");
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cpu_pc = tcg_global_mem_new(TCG_AREG0, |
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offsetof(CPUOpenRISCState, pc), "pc");
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cpu_npc = tcg_global_mem_new(TCG_AREG0, |
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offsetof(CPUOpenRISCState, npc), "npc");
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cpu_ppc = tcg_global_mem_new(TCG_AREG0, |
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offsetof(CPUOpenRISCState, ppc), "ppc");
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jmp_pc = tcg_global_mem_new(TCG_AREG0, |
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offsetof(CPUOpenRISCState, jmp_pc), "jmp_pc");
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env_btaken = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUOpenRISCState, btaken), |
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"btaken");
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fpcsr = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUOpenRISCState, fpcsr), |
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"fpcsr");
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machi = tcg_global_mem_new(TCG_AREG0, |
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offsetof(CPUOpenRISCState, machi), |
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"machi");
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maclo = tcg_global_mem_new(TCG_AREG0, |
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offsetof(CPUOpenRISCState, maclo), |
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"maclo");
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fpmaddhi = tcg_global_mem_new(TCG_AREG0, |
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offsetof(CPUOpenRISCState, fpmaddhi), |
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"fpmaddhi");
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fpmaddlo = tcg_global_mem_new(TCG_AREG0, |
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offsetof(CPUOpenRISCState, fpmaddlo), |
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"fpmaddlo");
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for (i = 0; i < 32; i++) { |
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cpu_R[i] = tcg_global_mem_new(TCG_AREG0, |
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offsetof(CPUOpenRISCState, gpr[i]), |
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regnames[i]); |
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} |
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} |
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|
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/* Writeback SR_F transaltion-space to execution-space. */
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static inline void wb_SR_F(void) |
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{
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int label;
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|
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label = gen_new_label(); |
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tcg_gen_andi_tl(cpu_sr, cpu_sr, ~SR_F); |
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tcg_gen_brcondi_tl(TCG_COND_EQ, env_btaken, 0, label);
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tcg_gen_ori_tl(cpu_sr, cpu_sr, SR_F); |
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gen_set_label(label); |
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} |
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static inline int zero_extend(unsigned int val, int width) |
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{
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return val & ((1 << width) - 1); |
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} |
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static inline int sign_extend(unsigned int val, int width) |
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{
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int sval;
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/* LSL */
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val <<= TARGET_LONG_BITS - width; |
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sval = val; |
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/* ASR. */
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sval >>= TARGET_LONG_BITS - width; |
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return sval;
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} |
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|
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static inline void gen_sync_flags(DisasContext *dc) |
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{
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/* Sync the tb dependent flag between translate and runtime. */
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if (dc->tb_flags != dc->synced_flags) {
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tcg_gen_movi_tl(env_flags, dc->tb_flags); |
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dc->synced_flags = dc->tb_flags; |
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} |
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} |
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|
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static void gen_exception(DisasContext *dc, unsigned int excp) |
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{
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TCGv_i32 tmp = tcg_const_i32(excp); |
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gen_helper_exception(cpu_env, tmp); |
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tcg_temp_free_i32(tmp); |
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} |
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|
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static void gen_illegal_exception(DisasContext *dc) |
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{
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tcg_gen_movi_tl(cpu_pc, dc->pc); |
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gen_exception(dc, EXCP_ILLEGAL); |
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dc->is_jmp = DISAS_UPDATE; |
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} |
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|
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/* not used yet, open it when we need or64. */
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/*#ifdef TARGET_OPENRISC64
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static void check_ob64s(DisasContext *dc)
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{
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if (!(dc->flags & CPUCFGR_OB64S)) {
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gen_illegal_exception(dc);
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}
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}
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static void check_of64s(DisasContext *dc)
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{
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if (!(dc->flags & CPUCFGR_OF64S)) {
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gen_illegal_exception(dc);
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}
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}
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static void check_ov64s(DisasContext *dc)
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{
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if (!(dc->flags & CPUCFGR_OV64S)) {
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gen_illegal_exception(dc);
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}
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}
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#endif*/
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|
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static void gen_goto_tb(DisasContext *dc, int n, target_ulong dest) |
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{
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TranslationBlock *tb; |
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tb = dc->tb; |
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if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK) &&
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likely(!dc->singlestep_enabled)) {
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tcg_gen_movi_tl(cpu_pc, dest); |
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tcg_gen_goto_tb(n); |
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tcg_gen_exit_tb((uintptr_t)tb + n); |
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} else {
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tcg_gen_movi_tl(cpu_pc, dest); |
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if (dc->singlestep_enabled) {
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gen_exception(dc, EXCP_DEBUG); |
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} |
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tcg_gen_exit_tb(0);
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} |
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} |
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|
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static void gen_jump(DisasContext *dc, uint32_t imm, uint32_t reg, uint32_t op0) |
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{
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target_ulong tmp_pc; |
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int lab = gen_new_label();
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TCGv sr_f = tcg_temp_new(); |
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/* N26, 26bits imm */
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tmp_pc = sign_extend((imm<<2), 26) + dc->pc; |
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tcg_gen_andi_tl(sr_f, cpu_sr, SR_F); |
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|
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if (op0 == 0x00) { /* l.j */ |
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tcg_gen_movi_tl(jmp_pc, tmp_pc); |
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} else if (op0 == 0x01) { /* l.jal */ |
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tcg_gen_movi_tl(cpu_R[9], (dc->pc + 8)); |
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tcg_gen_movi_tl(jmp_pc, tmp_pc); |
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} else if (op0 == 0x03) { /* l.bnf */ |
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tcg_gen_movi_tl(jmp_pc, dc->pc+8);
|
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tcg_gen_brcondi_i32(TCG_COND_EQ, sr_f, SR_F, lab); |
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tcg_gen_movi_tl(jmp_pc, tmp_pc); |
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gen_set_label(lab); |
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} else if (op0 == 0x04) { /* l.bf */ |
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tcg_gen_movi_tl(jmp_pc, dc->pc+8);
|
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tcg_gen_brcondi_i32(TCG_COND_NE, sr_f, SR_F, lab); |
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tcg_gen_movi_tl(jmp_pc, tmp_pc); |
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gen_set_label(lab); |
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} else if (op0 == 0x11) { /* l.jr */ |
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tcg_gen_mov_tl(jmp_pc, cpu_R[reg]); |
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} else if (op0 == 0x12) { /* l.jalr */ |
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tcg_gen_movi_tl(cpu_R[9], (dc->pc + 8)); |
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tcg_gen_mov_tl(jmp_pc, cpu_R[reg]); |
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} else {
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gen_illegal_exception(dc); |
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} |
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|
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tcg_temp_free(sr_f); |
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dc->delayed_branch = 2;
|
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dc->tb_flags |= D_FLAG; |
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gen_sync_flags(dc); |
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} |
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|
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static void dec_calc(DisasContext *dc, uint32_t insn) |
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{
|
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uint32_t op0, op1, op2; |
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uint32_t ra, rb, rd; |
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op0 = extract32(insn, 0, 4); |
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op1 = extract32(insn, 8, 2); |
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op2 = extract32(insn, 6, 2); |
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ra = extract32(insn, 16, 5); |
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rb = extract32(insn, 11, 5); |
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rd = extract32(insn, 21, 5); |
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|
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switch (op0) {
|
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case 0x0000: |
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switch (op1) {
|
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case 0x00: /* l.add */ |
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LOG_DIS("l.add r%d, r%d, r%d\n", rd, ra, rb);
|
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{
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int lab = gen_new_label();
|
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TCGv_i64 ta = tcg_temp_new_i64(); |
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TCGv_i64 tb = tcg_temp_new_i64(); |
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TCGv_i64 td = tcg_temp_local_new_i64(); |
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TCGv_i32 res = tcg_temp_local_new_i32(); |
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TCGv_i32 sr_ove = tcg_temp_local_new_i32(); |
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tcg_gen_extu_i32_i64(ta, cpu_R[ra]); |
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tcg_gen_extu_i32_i64(tb, cpu_R[rb]); |
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tcg_gen_add_i64(td, ta, tb); |
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tcg_gen_trunc_i64_i32(res, td); |
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tcg_gen_shri_i64(td, td, 31);
|
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tcg_gen_andi_i64(td, td, 0x3);
|
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/* Jump to lab when no overflow. */
|
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tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
|
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tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
|
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tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY)); |
| 281 |
tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE); |
| 282 |
tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab); |
| 283 |
gen_exception(dc, EXCP_RANGE); |
| 284 |
gen_set_label(lab); |
| 285 |
tcg_gen_mov_i32(cpu_R[rd], res); |
| 286 |
tcg_temp_free_i64(ta); |
| 287 |
tcg_temp_free_i64(tb); |
| 288 |
tcg_temp_free_i64(td); |
| 289 |
tcg_temp_free_i32(res); |
| 290 |
tcg_temp_free_i32(sr_ove); |
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} |
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break;
|
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default:
|
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gen_illegal_exception(dc); |
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break;
|
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} |
| 297 |
break;
|
| 298 |
|
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case 0x0001: /* l.addc */ |
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switch (op1) {
|
| 301 |
case 0x00: |
| 302 |
LOG_DIS("l.addc r%d, r%d, r%d\n", rd, ra, rb);
|
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{
|
| 304 |
int lab = gen_new_label();
|
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TCGv_i64 ta = tcg_temp_new_i64(); |
| 306 |
TCGv_i64 tb = tcg_temp_new_i64(); |
| 307 |
TCGv_i64 tcy = tcg_temp_local_new_i64(); |
| 308 |
TCGv_i64 td = tcg_temp_local_new_i64(); |
| 309 |
TCGv_i32 res = tcg_temp_local_new_i32(); |
| 310 |
TCGv_i32 sr_cy = tcg_temp_local_new_i32(); |
| 311 |
TCGv_i32 sr_ove = tcg_temp_local_new_i32(); |
| 312 |
tcg_gen_extu_i32_i64(ta, cpu_R[ra]); |
| 313 |
tcg_gen_extu_i32_i64(tb, cpu_R[rb]); |
| 314 |
tcg_gen_andi_i32(sr_cy, cpu_sr, SR_CY); |
| 315 |
tcg_gen_extu_i32_i64(tcy, sr_cy); |
| 316 |
tcg_gen_shri_i64(tcy, tcy, 10);
|
| 317 |
tcg_gen_add_i64(td, ta, tb); |
| 318 |
tcg_gen_add_i64(td, td, tcy); |
| 319 |
tcg_gen_trunc_i64_i32(res, td); |
| 320 |
tcg_gen_shri_i64(td, td, 32);
|
| 321 |
tcg_gen_andi_i64(td, td, 0x3);
|
| 322 |
/* Jump to lab when no overflow. */
|
| 323 |
tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
|
| 324 |
tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
|
| 325 |
tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY)); |
| 326 |
tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE); |
| 327 |
tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab); |
| 328 |
gen_exception(dc, EXCP_RANGE); |
| 329 |
gen_set_label(lab); |
| 330 |
tcg_gen_mov_i32(cpu_R[rd], res); |
| 331 |
tcg_temp_free_i64(ta); |
| 332 |
tcg_temp_free_i64(tb); |
| 333 |
tcg_temp_free_i64(tcy); |
| 334 |
tcg_temp_free_i64(td); |
| 335 |
tcg_temp_free_i32(res); |
| 336 |
tcg_temp_free_i32(sr_cy); |
| 337 |
tcg_temp_free_i32(sr_ove); |
| 338 |
} |
| 339 |
break;
|
| 340 |
default:
|
| 341 |
gen_illegal_exception(dc); |
| 342 |
break;
|
| 343 |
} |
| 344 |
break;
|
| 345 |
|
| 346 |
case 0x0002: /* l.sub */ |
| 347 |
switch (op1) {
|
| 348 |
case 0x00: |
| 349 |
LOG_DIS("l.sub r%d, r%d, r%d\n", rd, ra, rb);
|
| 350 |
{
|
| 351 |
int lab = gen_new_label();
|
| 352 |
TCGv_i64 ta = tcg_temp_new_i64(); |
| 353 |
TCGv_i64 tb = tcg_temp_new_i64(); |
| 354 |
TCGv_i64 td = tcg_temp_local_new_i64(); |
| 355 |
TCGv_i32 res = tcg_temp_local_new_i32(); |
| 356 |
TCGv_i32 sr_ove = tcg_temp_local_new_i32(); |
| 357 |
|
| 358 |
tcg_gen_extu_i32_i64(ta, cpu_R[ra]); |
| 359 |
tcg_gen_extu_i32_i64(tb, cpu_R[rb]); |
| 360 |
tcg_gen_sub_i64(td, ta, tb); |
| 361 |
tcg_gen_trunc_i64_i32(res, td); |
| 362 |
tcg_gen_shri_i64(td, td, 31);
|
| 363 |
tcg_gen_andi_i64(td, td, 0x3);
|
| 364 |
/* Jump to lab when no overflow. */
|
| 365 |
tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
|
| 366 |
tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
|
| 367 |
tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY)); |
| 368 |
tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE); |
| 369 |
tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab); |
| 370 |
gen_exception(dc, EXCP_RANGE); |
| 371 |
gen_set_label(lab); |
| 372 |
tcg_gen_mov_i32(cpu_R[rd], res); |
| 373 |
tcg_temp_free_i64(ta); |
| 374 |
tcg_temp_free_i64(tb); |
| 375 |
tcg_temp_free_i64(td); |
| 376 |
tcg_temp_free_i32(res); |
| 377 |
tcg_temp_free_i32(sr_ove); |
| 378 |
} |
| 379 |
break;
|
| 380 |
default:
|
| 381 |
gen_illegal_exception(dc); |
| 382 |
break;
|
| 383 |
} |
| 384 |
break;
|
| 385 |
|
| 386 |
case 0x0003: /* l.and */ |
| 387 |
switch (op1) {
|
| 388 |
case 0x00: |
| 389 |
LOG_DIS("l.and r%d, r%d, r%d\n", rd, ra, rb);
|
| 390 |
tcg_gen_and_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); |
| 391 |
break;
|
| 392 |
default:
|
| 393 |
gen_illegal_exception(dc); |
| 394 |
break;
|
| 395 |
} |
| 396 |
break;
|
| 397 |
|
| 398 |
case 0x0004: /* l.or */ |
| 399 |
switch (op1) {
|
| 400 |
case 0x00: |
| 401 |
LOG_DIS("l.or r%d, r%d, r%d\n", rd, ra, rb);
|
| 402 |
tcg_gen_or_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); |
| 403 |
break;
|
| 404 |
default:
|
| 405 |
gen_illegal_exception(dc); |
| 406 |
break;
|
| 407 |
} |
| 408 |
break;
|
| 409 |
|
| 410 |
case 0x0005: |
| 411 |
switch (op1) {
|
| 412 |
case 0x00: /* l.xor */ |
| 413 |
LOG_DIS("l.xor r%d, r%d, r%d\n", rd, ra, rb);
|
| 414 |
tcg_gen_xor_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); |
| 415 |
break;
|
| 416 |
default:
|
| 417 |
gen_illegal_exception(dc); |
| 418 |
break;
|
| 419 |
} |
| 420 |
break;
|
| 421 |
|
| 422 |
case 0x0006: |
| 423 |
switch (op1) {
|
| 424 |
case 0x03: /* l.mul */ |
| 425 |
LOG_DIS("l.mul r%d, r%d, r%d\n", rd, ra, rb);
|
| 426 |
if (ra != 0 && rb != 0) { |
| 427 |
gen_helper_mul32(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); |
| 428 |
} else {
|
| 429 |
tcg_gen_movi_tl(cpu_R[rd], 0x0);
|
| 430 |
} |
| 431 |
break;
|
| 432 |
default:
|
| 433 |
gen_illegal_exception(dc); |
| 434 |
break;
|
| 435 |
} |
| 436 |
break;
|
| 437 |
|
| 438 |
case 0x0009: |
| 439 |
switch (op1) {
|
| 440 |
case 0x03: /* l.div */ |
| 441 |
LOG_DIS("l.div r%d, r%d, r%d\n", rd, ra, rb);
|
| 442 |
{
|
| 443 |
int lab0 = gen_new_label();
|
| 444 |
int lab1 = gen_new_label();
|
| 445 |
int lab2 = gen_new_label();
|
| 446 |
int lab3 = gen_new_label();
|
| 447 |
TCGv_i32 sr_ove = tcg_temp_local_new_i32(); |
| 448 |
if (rb == 0) { |
| 449 |
tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY)); |
| 450 |
tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE); |
| 451 |
tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab0); |
| 452 |
gen_exception(dc, EXCP_RANGE); |
| 453 |
gen_set_label(lab0); |
| 454 |
} else {
|
| 455 |
tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_R[rb], |
| 456 |
0x00000000, lab1);
|
| 457 |
tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[ra], |
| 458 |
0x80000000, lab2);
|
| 459 |
tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[rb], |
| 460 |
0xffffffff, lab2);
|
| 461 |
gen_set_label(lab1); |
| 462 |
tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY)); |
| 463 |
tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE); |
| 464 |
tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab3); |
| 465 |
gen_exception(dc, EXCP_RANGE); |
| 466 |
gen_set_label(lab2); |
| 467 |
tcg_gen_div_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); |
| 468 |
gen_set_label(lab3); |
| 469 |
} |
| 470 |
tcg_temp_free_i32(sr_ove); |
| 471 |
} |
| 472 |
break;
|
| 473 |
|
| 474 |
default:
|
| 475 |
gen_illegal_exception(dc); |
| 476 |
break;
|
| 477 |
} |
| 478 |
break;
|
| 479 |
|
| 480 |
case 0x000a: |
| 481 |
switch (op1) {
|
| 482 |
case 0x03: /* l.divu */ |
| 483 |
LOG_DIS("l.divu r%d, r%d, r%d\n", rd, ra, rb);
|
| 484 |
{
|
| 485 |
int lab0 = gen_new_label();
|
| 486 |
int lab1 = gen_new_label();
|
| 487 |
int lab2 = gen_new_label();
|
| 488 |
TCGv_i32 sr_ove = tcg_temp_local_new_i32(); |
| 489 |
if (rb == 0) { |
| 490 |
tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY)); |
| 491 |
tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE); |
| 492 |
tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab0); |
| 493 |
gen_exception(dc, EXCP_RANGE); |
| 494 |
gen_set_label(lab0); |
| 495 |
} else {
|
| 496 |
tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[rb], |
| 497 |
0x00000000, lab1);
|
| 498 |
tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY)); |
| 499 |
tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE); |
| 500 |
tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab2); |
| 501 |
gen_exception(dc, EXCP_RANGE); |
| 502 |
gen_set_label(lab1); |
| 503 |
tcg_gen_divu_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); |
| 504 |
gen_set_label(lab2); |
| 505 |
} |
| 506 |
tcg_temp_free_i32(sr_ove); |
| 507 |
} |
| 508 |
break;
|
| 509 |
|
| 510 |
default:
|
| 511 |
gen_illegal_exception(dc); |
| 512 |
break;
|
| 513 |
} |
| 514 |
break;
|
| 515 |
|
| 516 |
case 0x000b: |
| 517 |
switch (op1) {
|
| 518 |
case 0x03: /* l.mulu */ |
| 519 |
LOG_DIS("l.mulu r%d, r%d, r%d\n", rd, ra, rb);
|
| 520 |
if (rb != 0 && ra != 0) { |
| 521 |
TCGv_i64 result = tcg_temp_local_new_i64(); |
| 522 |
TCGv_i64 tra = tcg_temp_local_new_i64(); |
| 523 |
TCGv_i64 trb = tcg_temp_local_new_i64(); |
| 524 |
TCGv_i64 high = tcg_temp_new_i64(); |
| 525 |
TCGv_i32 sr_ove = tcg_temp_local_new_i32(); |
| 526 |
int lab = gen_new_label();
|
| 527 |
/* Calculate the each result. */
|
| 528 |
tcg_gen_extu_i32_i64(tra, cpu_R[ra]); |
| 529 |
tcg_gen_extu_i32_i64(trb, cpu_R[rb]); |
| 530 |
tcg_gen_mul_i64(result, tra, trb); |
| 531 |
tcg_temp_free_i64(tra); |
| 532 |
tcg_temp_free_i64(trb); |
| 533 |
tcg_gen_shri_i64(high, result, TARGET_LONG_BITS); |
| 534 |
/* Overflow or not. */
|
| 535 |
tcg_gen_brcondi_i64(TCG_COND_EQ, high, 0x00000000, lab);
|
| 536 |
tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY)); |
| 537 |
tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE); |
| 538 |
tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab); |
| 539 |
gen_exception(dc, EXCP_RANGE); |
| 540 |
gen_set_label(lab); |
| 541 |
tcg_temp_free_i64(high); |
| 542 |
tcg_gen_trunc_i64_tl(cpu_R[rd], result); |
| 543 |
tcg_temp_free_i64(result); |
| 544 |
tcg_temp_free_i32(sr_ove); |
| 545 |
} else {
|
| 546 |
tcg_gen_movi_tl(cpu_R[rd], 0);
|
| 547 |
} |
| 548 |
break;
|
| 549 |
|
| 550 |
default:
|
| 551 |
gen_illegal_exception(dc); |
| 552 |
break;
|
| 553 |
} |
| 554 |
break;
|
| 555 |
|
| 556 |
case 0x000e: |
| 557 |
switch (op1) {
|
| 558 |
case 0x00: /* l.cmov */ |
| 559 |
LOG_DIS("l.cmov r%d, r%d, r%d\n", rd, ra, rb);
|
| 560 |
{
|
| 561 |
int lab = gen_new_label();
|
| 562 |
TCGv res = tcg_temp_local_new(); |
| 563 |
TCGv sr_f = tcg_temp_new(); |
| 564 |
tcg_gen_andi_tl(sr_f, cpu_sr, SR_F); |
| 565 |
tcg_gen_mov_tl(res, cpu_R[rb]); |
| 566 |
tcg_gen_brcondi_tl(TCG_COND_NE, sr_f, SR_F, lab); |
| 567 |
tcg_gen_mov_tl(res, cpu_R[ra]); |
| 568 |
gen_set_label(lab); |
| 569 |
tcg_gen_mov_tl(cpu_R[rd], res); |
| 570 |
tcg_temp_free(sr_f); |
| 571 |
tcg_temp_free(res); |
| 572 |
} |
| 573 |
break;
|
| 574 |
|
| 575 |
default:
|
| 576 |
gen_illegal_exception(dc); |
| 577 |
break;
|
| 578 |
} |
| 579 |
break;
|
| 580 |
|
| 581 |
case 0x000f: |
| 582 |
switch (op1) {
|
| 583 |
case 0x00: /* l.ff1 */ |
| 584 |
LOG_DIS("l.ff1 r%d, r%d, r%d\n", rd, ra, rb);
|
| 585 |
gen_helper_ff1(cpu_R[rd], cpu_R[ra]); |
| 586 |
break;
|
| 587 |
case 0x01: /* l.fl1 */ |
| 588 |
LOG_DIS("l.fl1 r%d, r%d, r%d\n", rd, ra, rb);
|
| 589 |
gen_helper_fl1(cpu_R[rd], cpu_R[ra]); |
| 590 |
break;
|
| 591 |
|
| 592 |
default:
|
| 593 |
gen_illegal_exception(dc); |
| 594 |
break;
|
| 595 |
} |
| 596 |
break;
|
| 597 |
|
| 598 |
case 0x0008: |
| 599 |
switch (op1) {
|
| 600 |
case 0x00: |
| 601 |
switch (op2) {
|
| 602 |
case 0x00: /* l.sll */ |
| 603 |
LOG_DIS("l.sll r%d, r%d, r%d\n", rd, ra, rb);
|
| 604 |
tcg_gen_shl_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); |
| 605 |
break;
|
| 606 |
case 0x01: /* l.srl */ |
| 607 |
LOG_DIS("l.srl r%d, r%d, r%d\n", rd, ra, rb);
|
| 608 |
tcg_gen_shr_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); |
| 609 |
break;
|
| 610 |
case 0x02: /* l.sra */ |
| 611 |
LOG_DIS("l.sra r%d, r%d, r%d\n", rd, ra, rb);
|
| 612 |
tcg_gen_sar_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); |
| 613 |
break;
|
| 614 |
case 0x03: /* l.ror */ |
| 615 |
LOG_DIS("l.ror r%d, r%d, r%d\n", rd, ra, rb);
|
| 616 |
tcg_gen_rotr_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); |
| 617 |
break;
|
| 618 |
|
| 619 |
default:
|
| 620 |
gen_illegal_exception(dc); |
| 621 |
break;
|
| 622 |
} |
| 623 |
break;
|
| 624 |
|
| 625 |
default:
|
| 626 |
gen_illegal_exception(dc); |
| 627 |
break;
|
| 628 |
} |
| 629 |
break;
|
| 630 |
|
| 631 |
case 0x000c: |
| 632 |
switch (op1) {
|
| 633 |
case 0x00: |
| 634 |
switch (op2) {
|
| 635 |
case 0x00: /* l.exths */ |
| 636 |
LOG_DIS("l.exths r%d, r%d\n", rd, ra);
|
| 637 |
tcg_gen_ext16s_tl(cpu_R[rd], cpu_R[ra]); |
| 638 |
break;
|
| 639 |
case 0x01: /* l.extbs */ |
| 640 |
LOG_DIS("l.extbs r%d, r%d\n", rd, ra);
|
| 641 |
tcg_gen_ext8s_tl(cpu_R[rd], cpu_R[ra]); |
| 642 |
break;
|
| 643 |
case 0x02: /* l.exthz */ |
| 644 |
LOG_DIS("l.exthz r%d, r%d\n", rd, ra);
|
| 645 |
tcg_gen_ext16u_tl(cpu_R[rd], cpu_R[ra]); |
| 646 |
break;
|
| 647 |
case 0x03: /* l.extbz */ |
| 648 |
LOG_DIS("l.extbz r%d, r%d\n", rd, ra);
|
| 649 |
tcg_gen_ext8u_tl(cpu_R[rd], cpu_R[ra]); |
| 650 |
break;
|
| 651 |
|
| 652 |
default:
|
| 653 |
gen_illegal_exception(dc); |
| 654 |
break;
|
| 655 |
} |
| 656 |
break;
|
| 657 |
|
| 658 |
default:
|
| 659 |
gen_illegal_exception(dc); |
| 660 |
break;
|
| 661 |
} |
| 662 |
break;
|
| 663 |
|
| 664 |
case 0x000d: |
| 665 |
switch (op1) {
|
| 666 |
case 0x00: |
| 667 |
switch (op2) {
|
| 668 |
case 0x00: /* l.extws */ |
| 669 |
LOG_DIS("l.extws r%d, r%d\n", rd, ra);
|
| 670 |
tcg_gen_ext32s_tl(cpu_R[rd], cpu_R[ra]); |
| 671 |
break;
|
| 672 |
case 0x01: /* l.extwz */ |
| 673 |
LOG_DIS("l.extwz r%d, r%d\n", rd, ra);
|
| 674 |
tcg_gen_ext32u_tl(cpu_R[rd], cpu_R[ra]); |
| 675 |
break;
|
| 676 |
|
| 677 |
default:
|
| 678 |
gen_illegal_exception(dc); |
| 679 |
break;
|
| 680 |
} |
| 681 |
break;
|
| 682 |
|
| 683 |
default:
|
| 684 |
gen_illegal_exception(dc); |
| 685 |
break;
|
| 686 |
} |
| 687 |
break;
|
| 688 |
|
| 689 |
default:
|
| 690 |
gen_illegal_exception(dc); |
| 691 |
break;
|
| 692 |
} |
| 693 |
} |
| 694 |
|
| 695 |
static void dec_misc(DisasContext *dc, uint32_t insn) |
| 696 |
{
|
| 697 |
uint32_t op0, op1; |
| 698 |
uint32_t ra, rb, rd; |
| 699 |
#ifdef OPENRISC_DISAS
|
| 700 |
uint32_t L6, K5; |
| 701 |
#endif
|
| 702 |
uint32_t I16, I5, I11, N26, tmp; |
| 703 |
op0 = extract32(insn, 26, 6); |
| 704 |
op1 = extract32(insn, 24, 2); |
| 705 |
ra = extract32(insn, 16, 5); |
| 706 |
rb = extract32(insn, 11, 5); |
| 707 |
rd = extract32(insn, 21, 5); |
| 708 |
#ifdef OPENRISC_DISAS
|
| 709 |
L6 = extract32(insn, 5, 6); |
| 710 |
K5 = extract32(insn, 0, 5); |
| 711 |
#endif
|
| 712 |
I16 = extract32(insn, 0, 16); |
| 713 |
I5 = extract32(insn, 21, 5); |
| 714 |
I11 = extract32(insn, 0, 11); |
| 715 |
N26 = extract32(insn, 0, 26); |
| 716 |
tmp = (I5<<11) + I11;
|
| 717 |
|
| 718 |
switch (op0) {
|
| 719 |
case 0x00: /* l.j */ |
| 720 |
LOG_DIS("l.j %d\n", N26);
|
| 721 |
gen_jump(dc, N26, 0, op0);
|
| 722 |
break;
|
| 723 |
|
| 724 |
case 0x01: /* l.jal */ |
| 725 |
LOG_DIS("l.jal %d\n", N26);
|
| 726 |
gen_jump(dc, N26, 0, op0);
|
| 727 |
break;
|
| 728 |
|
| 729 |
case 0x03: /* l.bnf */ |
| 730 |
LOG_DIS("l.bnf %d\n", N26);
|
| 731 |
gen_jump(dc, N26, 0, op0);
|
| 732 |
break;
|
| 733 |
|
| 734 |
case 0x04: /* l.bf */ |
| 735 |
LOG_DIS("l.bf %d\n", N26);
|
| 736 |
gen_jump(dc, N26, 0, op0);
|
| 737 |
break;
|
| 738 |
|
| 739 |
case 0x05: |
| 740 |
switch (op1) {
|
| 741 |
case 0x01: /* l.nop */ |
| 742 |
LOG_DIS("l.nop %d\n", I16);
|
| 743 |
break;
|
| 744 |
|
| 745 |
default:
|
| 746 |
gen_illegal_exception(dc); |
| 747 |
break;
|
| 748 |
} |
| 749 |
break;
|
| 750 |
|
| 751 |
case 0x11: /* l.jr */ |
| 752 |
LOG_DIS("l.jr r%d\n", rb);
|
| 753 |
gen_jump(dc, 0, rb, op0);
|
| 754 |
break;
|
| 755 |
|
| 756 |
case 0x12: /* l.jalr */ |
| 757 |
LOG_DIS("l.jalr r%d\n", rb);
|
| 758 |
gen_jump(dc, 0, rb, op0);
|
| 759 |
break;
|
| 760 |
|
| 761 |
case 0x13: /* l.maci */ |
| 762 |
LOG_DIS("l.maci %d, r%d, %d\n", I5, ra, I11);
|
| 763 |
{
|
| 764 |
TCGv_i64 t1 = tcg_temp_new_i64(); |
| 765 |
TCGv_i64 t2 = tcg_temp_new_i64(); |
| 766 |
TCGv_i32 dst = tcg_temp_new_i32(); |
| 767 |
TCGv ttmp = tcg_const_tl(tmp); |
| 768 |
tcg_gen_mul_tl(dst, cpu_R[ra], ttmp); |
| 769 |
tcg_gen_ext_i32_i64(t1, dst); |
| 770 |
tcg_gen_concat_i32_i64(t2, maclo, machi); |
| 771 |
tcg_gen_add_i64(t2, t2, t1); |
| 772 |
tcg_gen_trunc_i64_i32(maclo, t2); |
| 773 |
tcg_gen_shri_i64(t2, t2, 32);
|
| 774 |
tcg_gen_trunc_i64_i32(machi, t2); |
| 775 |
tcg_temp_free_i32(dst); |
| 776 |
tcg_temp_free(ttmp); |
| 777 |
tcg_temp_free_i64(t1); |
| 778 |
tcg_temp_free_i64(t2); |
| 779 |
} |
| 780 |
break;
|
| 781 |
|
| 782 |
case 0x09: /* l.rfe */ |
| 783 |
LOG_DIS("l.rfe\n");
|
| 784 |
{
|
| 785 |
#if defined(CONFIG_USER_ONLY)
|
| 786 |
return;
|
| 787 |
#else
|
| 788 |
if (dc->mem_idx == MMU_USER_IDX) {
|
| 789 |
gen_illegal_exception(dc); |
| 790 |
return;
|
| 791 |
} |
| 792 |
gen_helper_rfe(cpu_env); |
| 793 |
dc->is_jmp = DISAS_UPDATE; |
| 794 |
#endif
|
| 795 |
} |
| 796 |
break;
|
| 797 |
|
| 798 |
case 0x1c: /* l.cust1 */ |
| 799 |
LOG_DIS("l.cust1\n");
|
| 800 |
break;
|
| 801 |
|
| 802 |
case 0x1d: /* l.cust2 */ |
| 803 |
LOG_DIS("l.cust2\n");
|
| 804 |
break;
|
| 805 |
|
| 806 |
case 0x1e: /* l.cust3 */ |
| 807 |
LOG_DIS("l.cust3\n");
|
| 808 |
break;
|
| 809 |
|
| 810 |
case 0x1f: /* l.cust4 */ |
| 811 |
LOG_DIS("l.cust4\n");
|
| 812 |
break;
|
| 813 |
|
| 814 |
case 0x3c: /* l.cust5 */ |
| 815 |
LOG_DIS("l.cust5 r%d, r%d, r%d, %d, %d\n", rd, ra, rb, L6, K5);
|
| 816 |
break;
|
| 817 |
|
| 818 |
case 0x3d: /* l.cust6 */ |
| 819 |
LOG_DIS("l.cust6\n");
|
| 820 |
break;
|
| 821 |
|
| 822 |
case 0x3e: /* l.cust7 */ |
| 823 |
LOG_DIS("l.cust7\n");
|
| 824 |
break;
|
| 825 |
|
| 826 |
case 0x3f: /* l.cust8 */ |
| 827 |
LOG_DIS("l.cust8\n");
|
| 828 |
break;
|
| 829 |
|
| 830 |
/* not used yet, open it when we need or64. */
|
| 831 |
/*#ifdef TARGET_OPENRISC64
|
| 832 |
case 0x20: l.ld
|
| 833 |
LOG_DIS("l.ld r%d, r%d, %d\n", rd, ra, I16);
|
| 834 |
{
|
| 835 |
check_ob64s(dc);
|
| 836 |
TCGv_i64 t0 = tcg_temp_new_i64();
|
| 837 |
tcg_gen_addi_i64(t0, cpu_R[ra], sign_extend(I16, 16));
|
| 838 |
tcg_gen_qemu_ld64(cpu_R[rd], t0, dc->mem_idx);
|
| 839 |
tcg_temp_free_i64(t0);
|
| 840 |
}
|
| 841 |
break;
|
| 842 |
#endif*/
|
| 843 |
|
| 844 |
case 0x21: /* l.lwz */ |
| 845 |
LOG_DIS("l.lwz r%d, r%d, %d\n", rd, ra, I16);
|
| 846 |
{
|
| 847 |
TCGv t0 = tcg_temp_new(); |
| 848 |
tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16));
|
| 849 |
tcg_gen_qemu_ld32u(cpu_R[rd], t0, dc->mem_idx); |
| 850 |
tcg_temp_free(t0); |
| 851 |
} |
| 852 |
break;
|
| 853 |
|
| 854 |
case 0x22: /* l.lws */ |
| 855 |
LOG_DIS("l.lws r%d, r%d, %d\n", rd, ra, I16);
|
| 856 |
{
|
| 857 |
TCGv t0 = tcg_temp_new(); |
| 858 |
tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16));
|
| 859 |
tcg_gen_qemu_ld32s(cpu_R[rd], t0, dc->mem_idx); |
| 860 |
tcg_temp_free(t0); |
| 861 |
} |
| 862 |
break;
|
| 863 |
|
| 864 |
case 0x23: /* l.lbz */ |
| 865 |
LOG_DIS("l.lbz r%d, r%d, %d\n", rd, ra, I16);
|
| 866 |
{
|
| 867 |
TCGv t0 = tcg_temp_new(); |
| 868 |
tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16));
|
| 869 |
tcg_gen_qemu_ld8u(cpu_R[rd], t0, dc->mem_idx); |
| 870 |
tcg_temp_free(t0); |
| 871 |
} |
| 872 |
break;
|
| 873 |
|
| 874 |
case 0x24: /* l.lbs */ |
| 875 |
LOG_DIS("l.lbs r%d, r%d, %d\n", rd, ra, I16);
|
| 876 |
{
|
| 877 |
TCGv t0 = tcg_temp_new(); |
| 878 |
tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16));
|
| 879 |
tcg_gen_qemu_ld8s(cpu_R[rd], t0, dc->mem_idx); |
| 880 |
tcg_temp_free(t0); |
| 881 |
} |
| 882 |
break;
|
| 883 |
|
| 884 |
case 0x25: /* l.lhz */ |
| 885 |
LOG_DIS("l.lhz r%d, r%d, %d\n", rd, ra, I16);
|
| 886 |
{
|
| 887 |
TCGv t0 = tcg_temp_new(); |
| 888 |
tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16));
|
| 889 |
tcg_gen_qemu_ld16u(cpu_R[rd], t0, dc->mem_idx); |
| 890 |
tcg_temp_free(t0); |
| 891 |
} |
| 892 |
break;
|
| 893 |
|
| 894 |
case 0x26: /* l.lhs */ |
| 895 |
LOG_DIS("l.lhs r%d, r%d, %d\n", rd, ra, I16);
|
| 896 |
{
|
| 897 |
TCGv t0 = tcg_temp_new(); |
| 898 |
tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16));
|
| 899 |
tcg_gen_qemu_ld16s(cpu_R[rd], t0, dc->mem_idx); |
| 900 |
tcg_temp_free(t0); |
| 901 |
} |
| 902 |
break;
|
| 903 |
|
| 904 |
case 0x27: /* l.addi */ |
| 905 |
LOG_DIS("l.addi r%d, r%d, %d\n", rd, ra, I16);
|
| 906 |
{
|
| 907 |
int lab = gen_new_label();
|
| 908 |
TCGv_i64 ta = tcg_temp_new_i64(); |
| 909 |
TCGv_i64 td = tcg_temp_local_new_i64(); |
| 910 |
TCGv_i32 res = tcg_temp_local_new_i32(); |
| 911 |
TCGv_i32 sr_ove = tcg_temp_local_new_i32(); |
| 912 |
tcg_gen_extu_i32_i64(ta, cpu_R[ra]); |
| 913 |
tcg_gen_addi_i64(td, ta, sign_extend(I16, 16));
|
| 914 |
tcg_gen_trunc_i64_i32(res, td); |
| 915 |
tcg_gen_shri_i64(td, td, 32);
|
| 916 |
tcg_gen_andi_i64(td, td, 0x3);
|
| 917 |
/* Jump to lab when no overflow. */
|
| 918 |
tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
|
| 919 |
tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
|
| 920 |
tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY)); |
| 921 |
tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE); |
| 922 |
tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab); |
| 923 |
gen_exception(dc, EXCP_RANGE); |
| 924 |
gen_set_label(lab); |
| 925 |
tcg_gen_mov_i32(cpu_R[rd], res); |
| 926 |
tcg_temp_free_i64(ta); |
| 927 |
tcg_temp_free_i64(td); |
| 928 |
tcg_temp_free_i32(res); |
| 929 |
tcg_temp_free_i32(sr_ove); |
| 930 |
} |
| 931 |
break;
|
| 932 |
|
| 933 |
case 0x28: /* l.addic */ |
| 934 |
LOG_DIS("l.addic r%d, r%d, %d\n", rd, ra, I16);
|
| 935 |
{
|
| 936 |
int lab = gen_new_label();
|
| 937 |
TCGv_i64 ta = tcg_temp_new_i64(); |
| 938 |
TCGv_i64 td = tcg_temp_local_new_i64(); |
| 939 |
TCGv_i64 tcy = tcg_temp_local_new_i64(); |
| 940 |
TCGv_i32 res = tcg_temp_local_new_i32(); |
| 941 |
TCGv_i32 sr_cy = tcg_temp_local_new_i32(); |
| 942 |
TCGv_i32 sr_ove = tcg_temp_local_new_i32(); |
| 943 |
tcg_gen_extu_i32_i64(ta, cpu_R[ra]); |
| 944 |
tcg_gen_andi_i32(sr_cy, cpu_sr, SR_CY); |
| 945 |
tcg_gen_shri_i32(sr_cy, sr_cy, 10);
|
| 946 |
tcg_gen_extu_i32_i64(tcy, sr_cy); |
| 947 |
tcg_gen_addi_i64(td, ta, sign_extend(I16, 16));
|
| 948 |
tcg_gen_add_i64(td, td, tcy); |
| 949 |
tcg_gen_trunc_i64_i32(res, td); |
| 950 |
tcg_gen_shri_i64(td, td, 32);
|
| 951 |
tcg_gen_andi_i64(td, td, 0x3);
|
| 952 |
/* Jump to lab when no overflow. */
|
| 953 |
tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
|
| 954 |
tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
|
| 955 |
tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY)); |
| 956 |
tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE); |
| 957 |
tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab); |
| 958 |
gen_exception(dc, EXCP_RANGE); |
| 959 |
gen_set_label(lab); |
| 960 |
tcg_gen_mov_i32(cpu_R[rd], res); |
| 961 |
tcg_temp_free_i64(ta); |
| 962 |
tcg_temp_free_i64(td); |
| 963 |
tcg_temp_free_i64(tcy); |
| 964 |
tcg_temp_free_i32(res); |
| 965 |
tcg_temp_free_i32(sr_cy); |
| 966 |
tcg_temp_free_i32(sr_ove); |
| 967 |
} |
| 968 |
break;
|
| 969 |
|
| 970 |
case 0x29: /* l.andi */ |
| 971 |
LOG_DIS("l.andi r%d, r%d, %d\n", rd, ra, I16);
|
| 972 |
tcg_gen_andi_tl(cpu_R[rd], cpu_R[ra], zero_extend(I16, 16));
|
| 973 |
break;
|
| 974 |
|
| 975 |
case 0x2a: /* l.ori */ |
| 976 |
LOG_DIS("l.ori r%d, r%d, %d\n", rd, ra, I16);
|
| 977 |
tcg_gen_ori_tl(cpu_R[rd], cpu_R[ra], zero_extend(I16, 16));
|
| 978 |
break;
|
| 979 |
|
| 980 |
case 0x2b: /* l.xori */ |
| 981 |
LOG_DIS("l.xori r%d, r%d, %d\n", rd, ra, I16);
|
| 982 |
tcg_gen_xori_tl(cpu_R[rd], cpu_R[ra], sign_extend(I16, 16));
|
| 983 |
break;
|
| 984 |
|
| 985 |
case 0x2c: /* l.muli */ |
| 986 |
LOG_DIS("l.muli r%d, r%d, %d\n", rd, ra, I16);
|
| 987 |
if (ra != 0 && I16 != 0) { |
| 988 |
TCGv_i32 im = tcg_const_i32(I16); |
| 989 |
gen_helper_mul32(cpu_R[rd], cpu_env, cpu_R[ra], im); |
| 990 |
tcg_temp_free_i32(im); |
| 991 |
} else {
|
| 992 |
tcg_gen_movi_tl(cpu_R[rd], 0x0);
|
| 993 |
} |
| 994 |
break;
|
| 995 |
|
| 996 |
case 0x2d: /* l.mfspr */ |
| 997 |
LOG_DIS("l.mfspr r%d, r%d, %d\n", rd, ra, I16);
|
| 998 |
{
|
| 999 |
#if defined(CONFIG_USER_ONLY)
|
| 1000 |
return;
|
| 1001 |
#else
|
| 1002 |
TCGv_i32 ti = tcg_const_i32(I16); |
| 1003 |
if (dc->mem_idx == MMU_USER_IDX) {
|
| 1004 |
gen_illegal_exception(dc); |
| 1005 |
return;
|
| 1006 |
} |
| 1007 |
gen_helper_mfspr(cpu_R[rd], cpu_env, cpu_R[rd], cpu_R[ra], ti); |
| 1008 |
tcg_temp_free_i32(ti); |
| 1009 |
#endif
|
| 1010 |
} |
| 1011 |
break;
|
| 1012 |
|
| 1013 |
case 0x30: /* l.mtspr */ |
| 1014 |
LOG_DIS("l.mtspr %d, r%d, r%d, %d\n", I5, ra, rb, I11);
|
| 1015 |
{
|
| 1016 |
#if defined(CONFIG_USER_ONLY)
|
| 1017 |
return;
|
| 1018 |
#else
|
| 1019 |
TCGv_i32 im = tcg_const_i32(tmp); |
| 1020 |
if (dc->mem_idx == MMU_USER_IDX) {
|
| 1021 |
gen_illegal_exception(dc); |
| 1022 |
return;
|
| 1023 |
} |
| 1024 |
gen_helper_mtspr(cpu_env, cpu_R[ra], cpu_R[rb], im); |
| 1025 |
tcg_temp_free_i32(im); |
| 1026 |
#endif
|
| 1027 |
} |
| 1028 |
break;
|
| 1029 |
|
| 1030 |
/* not used yet, open it when we need or64. */
|
| 1031 |
/*#ifdef TARGET_OPENRISC64
|
| 1032 |
case 0x34: l.sd
|
| 1033 |
LOG_DIS("l.sd %d, r%d, r%d, %d\n", I5, ra, rb, I11);
|
| 1034 |
{
|
| 1035 |
check_ob64s(dc);
|
| 1036 |
TCGv_i64 t0 = tcg_temp_new_i64();
|
| 1037 |
tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(tmp, 16));
|
| 1038 |
tcg_gen_qemu_st64(cpu_R[rb], t0, dc->mem_idx);
|
| 1039 |
tcg_temp_free_i64(t0);
|
| 1040 |
}
|
| 1041 |
break;
|
| 1042 |
#endif*/
|
| 1043 |
|
| 1044 |
case 0x35: /* l.sw */ |
| 1045 |
LOG_DIS("l.sw %d, r%d, r%d, %d\n", I5, ra, rb, I11);
|
| 1046 |
{
|
| 1047 |
TCGv t0 = tcg_temp_new(); |
| 1048 |
tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(tmp, 16));
|
| 1049 |
tcg_gen_qemu_st32(cpu_R[rb], t0, dc->mem_idx); |
| 1050 |
tcg_temp_free(t0); |
| 1051 |
} |
| 1052 |
break;
|
| 1053 |
|
| 1054 |
case 0x36: /* l.sb */ |
| 1055 |
LOG_DIS("l.sb %d, r%d, r%d, %d\n", I5, ra, rb, I11);
|
| 1056 |
{
|
| 1057 |
TCGv t0 = tcg_temp_new(); |
| 1058 |
tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(tmp, 16));
|
| 1059 |
tcg_gen_qemu_st8(cpu_R[rb], t0, dc->mem_idx); |
| 1060 |
tcg_temp_free(t0); |
| 1061 |
} |
| 1062 |
break;
|
| 1063 |
|
| 1064 |
case 0x37: /* l.sh */ |
| 1065 |
LOG_DIS("l.sh %d, r%d, r%d, %d\n", I5, ra, rb, I11);
|
| 1066 |
{
|
| 1067 |
TCGv t0 = tcg_temp_new(); |
| 1068 |
tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(tmp, 16));
|
| 1069 |
tcg_gen_qemu_st16(cpu_R[rb], t0, dc->mem_idx); |
| 1070 |
tcg_temp_free(t0); |
| 1071 |
} |
| 1072 |
break;
|
| 1073 |
|
| 1074 |
default:
|
| 1075 |
gen_illegal_exception(dc); |
| 1076 |
break;
|
| 1077 |
} |
| 1078 |
} |
| 1079 |
|
| 1080 |
static void dec_mac(DisasContext *dc, uint32_t insn) |
| 1081 |
{
|
| 1082 |
uint32_t op0; |
| 1083 |
uint32_t ra, rb; |
| 1084 |
op0 = extract32(insn, 0, 4); |
| 1085 |
ra = extract32(insn, 16, 5); |
| 1086 |
rb = extract32(insn, 11, 5); |
| 1087 |
|
| 1088 |
switch (op0) {
|
| 1089 |
case 0x0001: /* l.mac */ |
| 1090 |
LOG_DIS("l.mac r%d, r%d\n", ra, rb);
|
| 1091 |
{
|
| 1092 |
TCGv_i32 t0 = tcg_temp_new_i32(); |
| 1093 |
TCGv_i64 t1 = tcg_temp_new_i64(); |
| 1094 |
TCGv_i64 t2 = tcg_temp_new_i64(); |
| 1095 |
tcg_gen_mul_tl(t0, cpu_R[ra], cpu_R[rb]); |
| 1096 |
tcg_gen_ext_i32_i64(t1, t0); |
| 1097 |
tcg_gen_concat_i32_i64(t2, maclo, machi); |
| 1098 |
tcg_gen_add_i64(t2, t2, t1); |
| 1099 |
tcg_gen_trunc_i64_i32(maclo, t2); |
| 1100 |
tcg_gen_shri_i64(t2, t2, 32);
|
| 1101 |
tcg_gen_trunc_i64_i32(machi, t2); |
| 1102 |
tcg_temp_free_i32(t0); |
| 1103 |
tcg_temp_free_i64(t1); |
| 1104 |
tcg_temp_free_i64(t2); |
| 1105 |
} |
| 1106 |
break;
|
| 1107 |
|
| 1108 |
case 0x0002: /* l.msb */ |
| 1109 |
LOG_DIS("l.msb r%d, r%d\n", ra, rb);
|
| 1110 |
{
|
| 1111 |
TCGv_i32 t0 = tcg_temp_new_i32(); |
| 1112 |
TCGv_i64 t1 = tcg_temp_new_i64(); |
| 1113 |
TCGv_i64 t2 = tcg_temp_new_i64(); |
| 1114 |
tcg_gen_mul_tl(t0, cpu_R[ra], cpu_R[rb]); |
| 1115 |
tcg_gen_ext_i32_i64(t1, t0); |
| 1116 |
tcg_gen_concat_i32_i64(t2, maclo, machi); |
| 1117 |
tcg_gen_sub_i64(t2, t2, t1); |
| 1118 |
tcg_gen_trunc_i64_i32(maclo, t2); |
| 1119 |
tcg_gen_shri_i64(t2, t2, 32);
|
| 1120 |
tcg_gen_trunc_i64_i32(machi, t2); |
| 1121 |
tcg_temp_free_i32(t0); |
| 1122 |
tcg_temp_free_i64(t1); |
| 1123 |
tcg_temp_free_i64(t2); |
| 1124 |
} |
| 1125 |
break;
|
| 1126 |
|
| 1127 |
default:
|
| 1128 |
gen_illegal_exception(dc); |
| 1129 |
break;
|
| 1130 |
} |
| 1131 |
} |
| 1132 |
|
| 1133 |
static void dec_logic(DisasContext *dc, uint32_t insn) |
| 1134 |
{
|
| 1135 |
uint32_t op0; |
| 1136 |
uint32_t rd, ra, L6; |
| 1137 |
op0 = extract32(insn, 6, 2); |
| 1138 |
rd = extract32(insn, 21, 5); |
| 1139 |
ra = extract32(insn, 16, 5); |
| 1140 |
L6 = extract32(insn, 0, 6); |
| 1141 |
|
| 1142 |
switch (op0) {
|
| 1143 |
case 0x00: /* l.slli */ |
| 1144 |
LOG_DIS("l.slli r%d, r%d, %d\n", rd, ra, L6);
|
| 1145 |
tcg_gen_shli_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f));
|
| 1146 |
break;
|
| 1147 |
|
| 1148 |
case 0x01: /* l.srli */ |
| 1149 |
LOG_DIS("l.srli r%d, r%d, %d\n", rd, ra, L6);
|
| 1150 |
tcg_gen_shri_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f));
|
| 1151 |
break;
|
| 1152 |
|
| 1153 |
case 0x02: /* l.srai */ |
| 1154 |
LOG_DIS("l.srai r%d, r%d, %d\n", rd, ra, L6);
|
| 1155 |
tcg_gen_sari_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f)); break; |
| 1156 |
|
| 1157 |
case 0x03: /* l.rori */ |
| 1158 |
LOG_DIS("l.rori r%d, r%d, %d\n", rd, ra, L6);
|
| 1159 |
tcg_gen_rotri_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f));
|
| 1160 |
break;
|
| 1161 |
|
| 1162 |
default:
|
| 1163 |
gen_illegal_exception(dc); |
| 1164 |
break;
|
| 1165 |
} |
| 1166 |
} |
| 1167 |
|
| 1168 |
static void dec_M(DisasContext *dc, uint32_t insn) |
| 1169 |
{
|
| 1170 |
uint32_t op0; |
| 1171 |
uint32_t rd; |
| 1172 |
uint32_t K16; |
| 1173 |
op0 = extract32(insn, 16, 1); |
| 1174 |
rd = extract32(insn, 21, 5); |
| 1175 |
K16 = extract32(insn, 0, 16); |
| 1176 |
|
| 1177 |
switch (op0) {
|
| 1178 |
case 0x0: /* l.movhi */ |
| 1179 |
LOG_DIS("l.movhi r%d, %d\n", rd, K16);
|
| 1180 |
tcg_gen_movi_tl(cpu_R[rd], (K16 << 16));
|
| 1181 |
break;
|
| 1182 |
|
| 1183 |
case 0x1: /* l.macrc */ |
| 1184 |
LOG_DIS("l.macrc r%d\n", rd);
|
| 1185 |
tcg_gen_mov_tl(cpu_R[rd], maclo); |
| 1186 |
tcg_gen_movi_tl(maclo, 0x0);
|
| 1187 |
tcg_gen_movi_tl(machi, 0x0);
|
| 1188 |
break;
|
| 1189 |
|
| 1190 |
default:
|
| 1191 |
gen_illegal_exception(dc); |
| 1192 |
break;
|
| 1193 |
} |
| 1194 |
} |
| 1195 |
|
| 1196 |
static void dec_comp(DisasContext *dc, uint32_t insn) |
| 1197 |
{
|
| 1198 |
uint32_t op0; |
| 1199 |
uint32_t ra, rb; |
| 1200 |
|
| 1201 |
op0 = extract32(insn, 21, 5); |
| 1202 |
ra = extract32(insn, 16, 5); |
| 1203 |
rb = extract32(insn, 11, 5); |
| 1204 |
|
| 1205 |
tcg_gen_movi_i32(env_btaken, 0x0);
|
| 1206 |
/* unsigned integers */
|
| 1207 |
tcg_gen_ext32u_tl(cpu_R[ra], cpu_R[ra]); |
| 1208 |
tcg_gen_ext32u_tl(cpu_R[rb], cpu_R[rb]); |
| 1209 |
|
| 1210 |
switch (op0) {
|
| 1211 |
case 0x0: /* l.sfeq */ |
| 1212 |
LOG_DIS("l.sfeq r%d, r%d\n", ra, rb);
|
| 1213 |
tcg_gen_setcond_tl(TCG_COND_EQ, env_btaken, cpu_R[ra], cpu_R[rb]); |
| 1214 |
break;
|
| 1215 |
|
| 1216 |
case 0x1: /* l.sfne */ |
| 1217 |
LOG_DIS("l.sfne r%d, r%d\n", ra, rb);
|
| 1218 |
tcg_gen_setcond_tl(TCG_COND_NE, env_btaken, cpu_R[ra], cpu_R[rb]); |
| 1219 |
break;
|
| 1220 |
|
| 1221 |
case 0x2: /* l.sfgtu */ |
| 1222 |
LOG_DIS("l.sfgtu r%d, r%d\n", ra, rb);
|
| 1223 |
tcg_gen_setcond_tl(TCG_COND_GTU, env_btaken, cpu_R[ra], cpu_R[rb]); |
| 1224 |
break;
|
| 1225 |
|
| 1226 |
case 0x3: /* l.sfgeu */ |
| 1227 |
LOG_DIS("l.sfgeu r%d, r%d\n", ra, rb);
|
| 1228 |
tcg_gen_setcond_tl(TCG_COND_GEU, env_btaken, cpu_R[ra], cpu_R[rb]); |
| 1229 |
break;
|
| 1230 |
|
| 1231 |
case 0x4: /* l.sfltu */ |
| 1232 |
LOG_DIS("l.sfltu r%d, r%d\n", ra, rb);
|
| 1233 |
tcg_gen_setcond_tl(TCG_COND_LTU, env_btaken, cpu_R[ra], cpu_R[rb]); |
| 1234 |
break;
|
| 1235 |
|
| 1236 |
case 0x5: /* l.sfleu */ |
| 1237 |
LOG_DIS("l.sfleu r%d, r%d\n", ra, rb);
|
| 1238 |
tcg_gen_setcond_tl(TCG_COND_LEU, env_btaken, cpu_R[ra], cpu_R[rb]); |
| 1239 |
break;
|
| 1240 |
|
| 1241 |
case 0xa: /* l.sfgts */ |
| 1242 |
LOG_DIS("l.sfgts r%d, r%d\n", ra, rb);
|
| 1243 |
tcg_gen_setcond_tl(TCG_COND_GT, env_btaken, cpu_R[ra], cpu_R[rb]); |
| 1244 |
break;
|
| 1245 |
|
| 1246 |
case 0xb: /* l.sfges */ |
| 1247 |
LOG_DIS("l.sfges r%d, r%d\n", ra, rb);
|
| 1248 |
tcg_gen_setcond_tl(TCG_COND_GE, env_btaken, cpu_R[ra], cpu_R[rb]); |
| 1249 |
break;
|
| 1250 |
|
| 1251 |
case 0xc: /* l.sflts */ |
| 1252 |
LOG_DIS("l.sflts r%d, r%d\n", ra, rb);
|
| 1253 |
tcg_gen_setcond_tl(TCG_COND_LT, env_btaken, cpu_R[ra], cpu_R[rb]); |
| 1254 |
break;
|
| 1255 |
|
| 1256 |
case 0xd: /* l.sfles */ |
| 1257 |
LOG_DIS("l.sfles r%d, r%d\n", ra, rb);
|
| 1258 |
tcg_gen_setcond_tl(TCG_COND_LE, env_btaken, cpu_R[ra], cpu_R[rb]); |
| 1259 |
break;
|
| 1260 |
|
| 1261 |
default:
|
| 1262 |
gen_illegal_exception(dc); |
| 1263 |
break;
|
| 1264 |
} |
| 1265 |
wb_SR_F(); |
| 1266 |
} |
| 1267 |
|
| 1268 |
static void dec_compi(DisasContext *dc, uint32_t insn) |
| 1269 |
{
|
| 1270 |
uint32_t op0; |
| 1271 |
uint32_t ra, I16; |
| 1272 |
|
| 1273 |
op0 = extract32(insn, 21, 5); |
| 1274 |
ra = extract32(insn, 16, 5); |
| 1275 |
I16 = extract32(insn, 0, 16); |
| 1276 |
|
| 1277 |
tcg_gen_movi_i32(env_btaken, 0x0);
|
| 1278 |
I16 = sign_extend(I16, 16);
|
| 1279 |
|
| 1280 |
switch (op0) {
|
| 1281 |
case 0x0: /* l.sfeqi */ |
| 1282 |
LOG_DIS("l.sfeqi r%d, %d\n", ra, I16);
|
| 1283 |
tcg_gen_setcondi_tl(TCG_COND_EQ, env_btaken, cpu_R[ra], I16); |
| 1284 |
break;
|
| 1285 |
|
| 1286 |
case 0x1: /* l.sfnei */ |
| 1287 |
LOG_DIS("l.sfnei r%d, %d\n", ra, I16);
|
| 1288 |
tcg_gen_setcondi_tl(TCG_COND_NE, env_btaken, cpu_R[ra], I16); |
| 1289 |
break;
|
| 1290 |
|
| 1291 |
case 0x2: /* l.sfgtui */ |
| 1292 |
LOG_DIS("l.sfgtui r%d, %d\n", ra, I16);
|
| 1293 |
tcg_gen_setcondi_tl(TCG_COND_GTU, env_btaken, cpu_R[ra], I16); |
| 1294 |
break;
|
| 1295 |
|
| 1296 |
case 0x3: /* l.sfgeui */ |
| 1297 |
LOG_DIS("l.sfgeui r%d, %d\n", ra, I16);
|
| 1298 |
tcg_gen_setcondi_tl(TCG_COND_GEU, env_btaken, cpu_R[ra], I16); |
| 1299 |
break;
|
| 1300 |
|
| 1301 |
case 0x4: /* l.sfltui */ |
| 1302 |
LOG_DIS("l.sfltui r%d, %d\n", ra, I16);
|
| 1303 |
tcg_gen_setcondi_tl(TCG_COND_LTU, env_btaken, cpu_R[ra], I16); |
| 1304 |
break;
|
| 1305 |
|
| 1306 |
case 0x5: /* l.sfleui */ |
| 1307 |
LOG_DIS("l.sfleui r%d, %d\n", ra, I16);
|
| 1308 |
tcg_gen_setcondi_tl(TCG_COND_LEU, env_btaken, cpu_R[ra], I16); |
| 1309 |
break;
|
| 1310 |
|
| 1311 |
case 0xa: /* l.sfgtsi */ |
| 1312 |
LOG_DIS("l.sfgtsi r%d, %d\n", ra, I16);
|
| 1313 |
tcg_gen_setcondi_tl(TCG_COND_GT, env_btaken, cpu_R[ra], I16); |
| 1314 |
break;
|
| 1315 |
|
| 1316 |
case 0xb: /* l.sfgesi */ |
| 1317 |
LOG_DIS("l.sfgesi r%d, %d\n", ra, I16);
|
| 1318 |
tcg_gen_setcondi_tl(TCG_COND_GE, env_btaken, cpu_R[ra], I16); |
| 1319 |
break;
|
| 1320 |
|
| 1321 |
case 0xc: /* l.sfltsi */ |
| 1322 |
LOG_DIS("l.sfltsi r%d, %d\n", ra, I16);
|
| 1323 |
tcg_gen_setcondi_tl(TCG_COND_LT, env_btaken, cpu_R[ra], I16); |
| 1324 |
break;
|
| 1325 |
|
| 1326 |
case 0xd: /* l.sflesi */ |
| 1327 |
LOG_DIS("l.sflesi r%d, %d\n", ra, I16);
|
| 1328 |
tcg_gen_setcondi_tl(TCG_COND_LE, env_btaken, cpu_R[ra], I16); |
| 1329 |
break;
|
| 1330 |
|
| 1331 |
default:
|
| 1332 |
gen_illegal_exception(dc); |
| 1333 |
break;
|
| 1334 |
} |
| 1335 |
wb_SR_F(); |
| 1336 |
} |
| 1337 |
|
| 1338 |
static void dec_sys(DisasContext *dc, uint32_t insn) |
| 1339 |
{
|
| 1340 |
uint32_t op0; |
| 1341 |
#ifdef OPENRISC_DISAS
|
| 1342 |
uint32_t K16; |
| 1343 |
#endif
|
| 1344 |
op0 = extract32(insn, 16, 8); |
| 1345 |
#ifdef OPENRISC_DISAS
|
| 1346 |
K16 = extract32(insn, 0, 16); |
| 1347 |
#endif
|
| 1348 |
|
| 1349 |
switch (op0) {
|
| 1350 |
case 0x000: /* l.sys */ |
| 1351 |
LOG_DIS("l.sys %d\n", K16);
|
| 1352 |
tcg_gen_movi_tl(cpu_pc, dc->pc); |
| 1353 |
gen_exception(dc, EXCP_SYSCALL); |
| 1354 |
dc->is_jmp = DISAS_UPDATE; |
| 1355 |
break;
|
| 1356 |
|
| 1357 |
case 0x100: /* l.trap */ |
| 1358 |
LOG_DIS("l.trap %d\n", K16);
|
| 1359 |
#if defined(CONFIG_USER_ONLY)
|
| 1360 |
return;
|
| 1361 |
#else
|
| 1362 |
if (dc->mem_idx == MMU_USER_IDX) {
|
| 1363 |
gen_illegal_exception(dc); |
| 1364 |
return;
|
| 1365 |
} |
| 1366 |
tcg_gen_movi_tl(cpu_pc, dc->pc); |
| 1367 |
gen_exception(dc, EXCP_TRAP); |
| 1368 |
#endif
|
| 1369 |
break;
|
| 1370 |
|
| 1371 |
case 0x300: /* l.csync */ |
| 1372 |
LOG_DIS("l.csync\n");
|
| 1373 |
#if defined(CONFIG_USER_ONLY)
|
| 1374 |
return;
|
| 1375 |
#else
|
| 1376 |
if (dc->mem_idx == MMU_USER_IDX) {
|
| 1377 |
gen_illegal_exception(dc); |
| 1378 |
return;
|
| 1379 |
} |
| 1380 |
#endif
|
| 1381 |
break;
|
| 1382 |
|
| 1383 |
case 0x200: /* l.msync */ |
| 1384 |
LOG_DIS("l.msync\n");
|
| 1385 |
#if defined(CONFIG_USER_ONLY)
|
| 1386 |
return;
|
| 1387 |
#else
|
| 1388 |
if (dc->mem_idx == MMU_USER_IDX) {
|
| 1389 |
gen_illegal_exception(dc); |
| 1390 |
return;
|
| 1391 |
} |
| 1392 |
#endif
|
| 1393 |
break;
|
| 1394 |
|
| 1395 |
case 0x270: /* l.psync */ |
| 1396 |
LOG_DIS("l.psync\n");
|
| 1397 |
#if defined(CONFIG_USER_ONLY)
|
| 1398 |
return;
|
| 1399 |
#else
|
| 1400 |
if (dc->mem_idx == MMU_USER_IDX) {
|
| 1401 |
gen_illegal_exception(dc); |
| 1402 |
return;
|
| 1403 |
} |
| 1404 |
#endif
|
| 1405 |
break;
|
| 1406 |
|
| 1407 |
default:
|
| 1408 |
gen_illegal_exception(dc); |
| 1409 |
break;
|
| 1410 |
} |
| 1411 |
} |
| 1412 |
|
| 1413 |
static void dec_float(DisasContext *dc, uint32_t insn) |
| 1414 |
{
|
| 1415 |
uint32_t op0; |
| 1416 |
uint32_t ra, rb, rd; |
| 1417 |
op0 = extract32(insn, 0, 8); |
| 1418 |
ra = extract32(insn, 16, 5); |
| 1419 |
rb = extract32(insn, 11, 5); |
| 1420 |
rd = extract32(insn, 21, 5); |
| 1421 |
|
| 1422 |
switch (op0) {
|
| 1423 |
case 0x00: /* lf.add.s */ |
| 1424 |
LOG_DIS("lf.add.s r%d, r%d, r%d\n", rd, ra, rb);
|
| 1425 |
gen_helper_float_add_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); |
| 1426 |
break;
|
| 1427 |
|
| 1428 |
case 0x01: /* lf.sub.s */ |
| 1429 |
LOG_DIS("lf.sub.s r%d, r%d, r%d\n", rd, ra, rb);
|
| 1430 |
gen_helper_float_sub_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); |
| 1431 |
break;
|
| 1432 |
|
| 1433 |
|
| 1434 |
case 0x02: /* lf.mul.s */ |
| 1435 |
LOG_DIS("lf.mul.s r%d, r%d, r%d\n", rd, ra, rb);
|
| 1436 |
if (ra != 0 && rb != 0) { |
| 1437 |
gen_helper_float_mul_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); |
| 1438 |
} else {
|
| 1439 |
tcg_gen_ori_tl(fpcsr, fpcsr, FPCSR_ZF); |
| 1440 |
tcg_gen_movi_i32(cpu_R[rd], 0x0);
|
| 1441 |
} |
| 1442 |
break;
|
| 1443 |
|
| 1444 |
case 0x03: /* lf.div.s */ |
| 1445 |
LOG_DIS("lf.div.s r%d, r%d, r%d\n", rd, ra, rb);
|
| 1446 |
gen_helper_float_div_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); |
| 1447 |
break;
|
| 1448 |
|
| 1449 |
case 0x04: /* lf.itof.s */ |
| 1450 |
LOG_DIS("lf.itof r%d, r%d\n", rd, ra);
|
| 1451 |
gen_helper_itofs(cpu_R[rd], cpu_env, cpu_R[ra]); |
| 1452 |
break;
|
| 1453 |
|
| 1454 |
case 0x05: /* lf.ftoi.s */ |
| 1455 |
LOG_DIS("lf.ftoi r%d, r%d\n", rd, ra);
|
| 1456 |
gen_helper_ftois(cpu_R[rd], cpu_env, cpu_R[ra]); |
| 1457 |
break;
|
| 1458 |
|
| 1459 |
case 0x06: /* lf.rem.s */ |
| 1460 |
LOG_DIS("lf.rem.s r%d, r%d, r%d\n", rd, ra, rb);
|
| 1461 |
gen_helper_float_rem_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); |
| 1462 |
break;
|
| 1463 |
|
| 1464 |
case 0x07: /* lf.madd.s */ |
| 1465 |
LOG_DIS("lf.madd.s r%d, r%d, r%d\n", rd, ra, rb);
|
| 1466 |
gen_helper_float_muladd_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); |
| 1467 |
break;
|
| 1468 |
|
| 1469 |
case 0x08: /* lf.sfeq.s */ |
| 1470 |
LOG_DIS("lf.sfeq.s r%d, r%d\n", ra, rb);
|
| 1471 |
gen_helper_float_eq_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); |
| 1472 |
break;
|
| 1473 |
|
| 1474 |
case 0x09: /* lf.sfne.s */ |
| 1475 |
LOG_DIS("lf.sfne.s r%d, r%d\n", ra, rb);
|
| 1476 |
gen_helper_float_ne_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); |
| 1477 |
break;
|
| 1478 |
|
| 1479 |
case 0x0a: /* lf.sfgt.s */ |
| 1480 |
LOG_DIS("lf.sfgt.s r%d, r%d\n", ra, rb);
|
| 1481 |
gen_helper_float_gt_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); |
| 1482 |
break;
|
| 1483 |
|
| 1484 |
case 0x0b: /* lf.sfge.s */ |
| 1485 |
LOG_DIS("lf.sfge.s r%d, r%d\n", ra, rb);
|
| 1486 |
gen_helper_float_ge_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); |
| 1487 |
break;
|
| 1488 |
|
| 1489 |
case 0x0c: /* lf.sflt.s */ |
| 1490 |
LOG_DIS("lf.sflt.s r%d, r%d\n", ra, rb);
|
| 1491 |
gen_helper_float_lt_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); |
| 1492 |
break;
|
| 1493 |
|
| 1494 |
case 0x0d: /* lf.sfle.s */ |
| 1495 |
LOG_DIS("lf.sfle.s r%d, r%d\n", ra, rb);
|
| 1496 |
gen_helper_float_le_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); |
| 1497 |
break;
|
| 1498 |
|
| 1499 |
/* not used yet, open it when we need or64. */
|
| 1500 |
/*#ifdef TARGET_OPENRISC64
|
| 1501 |
case 0x10: lf.add.d
|
| 1502 |
LOG_DIS("lf.add.d r%d, r%d, r%d\n", rd, ra, rb);
|
| 1503 |
check_of64s(dc);
|
| 1504 |
gen_helper_float_add_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
|
| 1505 |
break;
|
| 1506 |
|
| 1507 |
case 0x11: lf.sub.d
|
| 1508 |
LOG_DIS("lf.sub.d r%d, r%d, r%d\n", rd, ra, rb);
|
| 1509 |
check_of64s(dc);
|
| 1510 |
gen_helper_float_sub_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
|
| 1511 |
break;
|
| 1512 |
|
| 1513 |
case 0x12: lf.mul.d
|
| 1514 |
LOG_DIS("lf.mul.d r%d, r%d, r%d\n", rd, ra, rb);
|
| 1515 |
check_of64s(dc);
|
| 1516 |
if (ra != 0 && rb != 0) {
|
| 1517 |
gen_helper_float_mul_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
|
| 1518 |
} else {
|
| 1519 |
tcg_gen_ori_tl(fpcsr, fpcsr, FPCSR_ZF);
|
| 1520 |
tcg_gen_movi_i64(cpu_R[rd], 0x0);
|
| 1521 |
}
|
| 1522 |
break;
|
| 1523 |
|
| 1524 |
case 0x13: lf.div.d
|
| 1525 |
LOG_DIS("lf.div.d r%d, r%d, r%d\n", rd, ra, rb);
|
| 1526 |
check_of64s(dc);
|
| 1527 |
gen_helper_float_div_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
|
| 1528 |
break;
|
| 1529 |
|
| 1530 |
case 0x14: lf.itof.d
|
| 1531 |
LOG_DIS("lf.itof r%d, r%d\n", rd, ra);
|
| 1532 |
check_of64s(dc);
|
| 1533 |
gen_helper_itofd(cpu_R[rd], cpu_env, cpu_R[ra]);
|
| 1534 |
break;
|
| 1535 |
|
| 1536 |
case 0x15: lf.ftoi.d
|
| 1537 |
LOG_DIS("lf.ftoi r%d, r%d\n", rd, ra);
|
| 1538 |
check_of64s(dc);
|
| 1539 |
gen_helper_ftoid(cpu_R[rd], cpu_env, cpu_R[ra]);
|
| 1540 |
break;
|
| 1541 |
|
| 1542 |
case 0x16: lf.rem.d
|
| 1543 |
LOG_DIS("lf.rem.d r%d, r%d, r%d\n", rd, ra, rb);
|
| 1544 |
check_of64s(dc);
|
| 1545 |
gen_helper_float_rem_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
|
| 1546 |
break;
|
| 1547 |
|
| 1548 |
case 0x17: lf.madd.d
|
| 1549 |
LOG_DIS("lf.madd.d r%d, r%d, r%d\n", rd, ra, rb);
|
| 1550 |
check_of64s(dc);
|
| 1551 |
gen_helper_float_muladd_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
|
| 1552 |
break;
|
| 1553 |
|
| 1554 |
case 0x18: lf.sfeq.d
|
| 1555 |
LOG_DIS("lf.sfeq.d r%d, r%d\n", ra, rb);
|
| 1556 |
check_of64s(dc);
|
| 1557 |
gen_helper_float_eq_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
|
| 1558 |
break;
|
| 1559 |
|
| 1560 |
case 0x1a: lf.sfgt.d
|
| 1561 |
LOG_DIS("lf.sfgt.d r%d, r%d\n", ra, rb);
|
| 1562 |
check_of64s(dc);
|
| 1563 |
gen_helper_float_gt_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
|
| 1564 |
break;
|
| 1565 |
|
| 1566 |
case 0x1b: lf.sfge.d
|
| 1567 |
LOG_DIS("lf.sfge.d r%d, r%d\n", ra, rb);
|
| 1568 |
check_of64s(dc);
|
| 1569 |
gen_helper_float_ge_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
|
| 1570 |
break;
|
| 1571 |
|
| 1572 |
case 0x19: lf.sfne.d
|
| 1573 |
LOG_DIS("lf.sfne.d r%d, r%d\n", ra, rb);
|
| 1574 |
check_of64s(dc);
|
| 1575 |
gen_helper_float_ne_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
|
| 1576 |
break;
|
| 1577 |
|
| 1578 |
case 0x1c: lf.sflt.d
|
| 1579 |
LOG_DIS("lf.sflt.d r%d, r%d\n", ra, rb);
|
| 1580 |
check_of64s(dc);
|
| 1581 |
gen_helper_float_lt_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
|
| 1582 |
break;
|
| 1583 |
|
| 1584 |
case 0x1d: lf.sfle.d
|
| 1585 |
LOG_DIS("lf.sfle.d r%d, r%d\n", ra, rb);
|
| 1586 |
check_of64s(dc);
|
| 1587 |
gen_helper_float_le_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
|
| 1588 |
break;
|
| 1589 |
#endif*/
|
| 1590 |
|
| 1591 |
default:
|
| 1592 |
gen_illegal_exception(dc); |
| 1593 |
break;
|
| 1594 |
} |
| 1595 |
wb_SR_F(); |
| 1596 |
} |
| 1597 |
|
| 1598 |
static void disas_openrisc_insn(DisasContext *dc, OpenRISCCPU *cpu) |
| 1599 |
{
|
| 1600 |
uint32_t op0; |
| 1601 |
uint32_t insn; |
| 1602 |
insn = cpu_ldl_code(&cpu->env, dc->pc); |
| 1603 |
op0 = extract32(insn, 26, 6); |
| 1604 |
|
| 1605 |
switch (op0) {
|
| 1606 |
case 0x06: |
| 1607 |
dec_M(dc, insn); |
| 1608 |
break;
|
| 1609 |
|
| 1610 |
case 0x08: |
| 1611 |
dec_sys(dc, insn); |
| 1612 |
break;
|
| 1613 |
|
| 1614 |
case 0x2e: |
| 1615 |
dec_logic(dc, insn); |
| 1616 |
break;
|
| 1617 |
|
| 1618 |
case 0x2f: |
| 1619 |
dec_compi(dc, insn); |
| 1620 |
break;
|
| 1621 |
|
| 1622 |
case 0x31: |
| 1623 |
dec_mac(dc, insn); |
| 1624 |
break;
|
| 1625 |
|
| 1626 |
case 0x32: |
| 1627 |
dec_float(dc, insn); |
| 1628 |
break;
|
| 1629 |
|
| 1630 |
case 0x38: |
| 1631 |
dec_calc(dc, insn); |
| 1632 |
break;
|
| 1633 |
|
| 1634 |
case 0x39: |
| 1635 |
dec_comp(dc, insn); |
| 1636 |
break;
|
| 1637 |
|
| 1638 |
default:
|
| 1639 |
dec_misc(dc, insn); |
| 1640 |
break;
|
| 1641 |
} |
| 1642 |
} |
| 1643 |
|
| 1644 |
static void check_breakpoint(OpenRISCCPU *cpu, DisasContext *dc) |
| 1645 |
{
|
| 1646 |
CPUBreakpoint *bp; |
| 1647 |
|
| 1648 |
if (unlikely(!QTAILQ_EMPTY(&cpu->env.breakpoints))) {
|
| 1649 |
QTAILQ_FOREACH(bp, &cpu->env.breakpoints, entry) {
|
| 1650 |
if (bp->pc == dc->pc) {
|
| 1651 |
tcg_gen_movi_tl(cpu_pc, dc->pc); |
| 1652 |
gen_exception(dc, EXCP_DEBUG); |
| 1653 |
dc->is_jmp = DISAS_UPDATE; |
| 1654 |
} |
| 1655 |
} |
| 1656 |
} |
| 1657 |
} |
| 1658 |
|
| 1659 |
static inline void gen_intermediate_code_internal(OpenRISCCPU *cpu, |
| 1660 |
TranslationBlock *tb, |
| 1661 |
int search_pc)
|
| 1662 |
{
|
| 1663 |
CPUState *cs = CPU(cpu); |
| 1664 |
struct DisasContext ctx, *dc = &ctx;
|
| 1665 |
uint16_t *gen_opc_end; |
| 1666 |
uint32_t pc_start; |
| 1667 |
int j, k;
|
| 1668 |
uint32_t next_page_start; |
| 1669 |
int num_insns;
|
| 1670 |
int max_insns;
|
| 1671 |
|
| 1672 |
pc_start = tb->pc; |
| 1673 |
dc->tb = tb; |
| 1674 |
|
| 1675 |
gen_opc_end = tcg_ctx.gen_opc_buf + OPC_MAX_SIZE; |
| 1676 |
dc->is_jmp = DISAS_NEXT; |
| 1677 |
dc->ppc = pc_start; |
| 1678 |
dc->pc = pc_start; |
| 1679 |
dc->flags = cpu->env.cpucfgr; |
| 1680 |
dc->mem_idx = cpu_mmu_index(&cpu->env); |
| 1681 |
dc->synced_flags = dc->tb_flags = tb->flags; |
| 1682 |
dc->delayed_branch = !!(dc->tb_flags & D_FLAG); |
| 1683 |
dc->singlestep_enabled = cs->singlestep_enabled; |
| 1684 |
if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
|
| 1685 |
qemu_log("-----------------------------------------\n");
|
| 1686 |
log_cpu_state(CPU(cpu), 0);
|
| 1687 |
} |
| 1688 |
|
| 1689 |
next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE; |
| 1690 |
k = -1;
|
| 1691 |
num_insns = 0;
|
| 1692 |
max_insns = tb->cflags & CF_COUNT_MASK; |
| 1693 |
|
| 1694 |
if (max_insns == 0) { |
| 1695 |
max_insns = CF_COUNT_MASK; |
| 1696 |
} |
| 1697 |
|
| 1698 |
gen_tb_start(); |
| 1699 |
|
| 1700 |
do {
|
| 1701 |
check_breakpoint(cpu, dc); |
| 1702 |
if (search_pc) {
|
| 1703 |
j = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf; |
| 1704 |
if (k < j) {
|
| 1705 |
k++; |
| 1706 |
while (k < j) {
|
| 1707 |
tcg_ctx.gen_opc_instr_start[k++] = 0;
|
| 1708 |
} |
| 1709 |
} |
| 1710 |
tcg_ctx.gen_opc_pc[k] = dc->pc; |
| 1711 |
tcg_ctx.gen_opc_instr_start[k] = 1;
|
| 1712 |
tcg_ctx.gen_opc_icount[k] = num_insns; |
| 1713 |
} |
| 1714 |
|
| 1715 |
if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP | CPU_LOG_TB_OP_OPT))) {
|
| 1716 |
tcg_gen_debug_insn_start(dc->pc); |
| 1717 |
} |
| 1718 |
|
| 1719 |
if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO)) { |
| 1720 |
gen_io_start(); |
| 1721 |
} |
| 1722 |
dc->ppc = dc->pc - 4;
|
| 1723 |
dc->npc = dc->pc + 4;
|
| 1724 |
tcg_gen_movi_tl(cpu_ppc, dc->ppc); |
| 1725 |
tcg_gen_movi_tl(cpu_npc, dc->npc); |
| 1726 |
disas_openrisc_insn(dc, cpu); |
| 1727 |
dc->pc = dc->npc; |
| 1728 |
num_insns++; |
| 1729 |
/* delay slot */
|
| 1730 |
if (dc->delayed_branch) {
|
| 1731 |
dc->delayed_branch--; |
| 1732 |
if (!dc->delayed_branch) {
|
| 1733 |
dc->tb_flags &= ~D_FLAG; |
| 1734 |
gen_sync_flags(dc); |
| 1735 |
tcg_gen_mov_tl(cpu_pc, jmp_pc); |
| 1736 |
tcg_gen_mov_tl(cpu_npc, jmp_pc); |
| 1737 |
tcg_gen_movi_tl(jmp_pc, 0);
|
| 1738 |
tcg_gen_exit_tb(0);
|
| 1739 |
dc->is_jmp = DISAS_JUMP; |
| 1740 |
break;
|
| 1741 |
} |
| 1742 |
} |
| 1743 |
} while (!dc->is_jmp
|
| 1744 |
&& tcg_ctx.gen_opc_ptr < gen_opc_end |
| 1745 |
&& !cs->singlestep_enabled |
| 1746 |
&& !singlestep |
| 1747 |
&& (dc->pc < next_page_start) |
| 1748 |
&& num_insns < max_insns); |
| 1749 |
|
| 1750 |
if (tb->cflags & CF_LAST_IO) {
|
| 1751 |
gen_io_end(); |
| 1752 |
} |
| 1753 |
if (dc->is_jmp == DISAS_NEXT) {
|
| 1754 |
dc->is_jmp = DISAS_UPDATE; |
| 1755 |
tcg_gen_movi_tl(cpu_pc, dc->pc); |
| 1756 |
} |
| 1757 |
if (unlikely(cs->singlestep_enabled)) {
|
| 1758 |
if (dc->is_jmp == DISAS_NEXT) {
|
| 1759 |
tcg_gen_movi_tl(cpu_pc, dc->pc); |
| 1760 |
} |
| 1761 |
gen_exception(dc, EXCP_DEBUG); |
| 1762 |
} else {
|
| 1763 |
switch (dc->is_jmp) {
|
| 1764 |
case DISAS_NEXT:
|
| 1765 |
gen_goto_tb(dc, 0, dc->pc);
|
| 1766 |
break;
|
| 1767 |
default:
|
| 1768 |
case DISAS_JUMP:
|
| 1769 |
break;
|
| 1770 |
case DISAS_UPDATE:
|
| 1771 |
/* indicate that the hash table must be used
|
| 1772 |
to find the next TB */
|
| 1773 |
tcg_gen_exit_tb(0);
|
| 1774 |
break;
|
| 1775 |
case DISAS_TB_JUMP:
|
| 1776 |
/* nothing more to generate */
|
| 1777 |
break;
|
| 1778 |
} |
| 1779 |
} |
| 1780 |
|
| 1781 |
gen_tb_end(tb, num_insns); |
| 1782 |
*tcg_ctx.gen_opc_ptr = INDEX_op_end; |
| 1783 |
if (search_pc) {
|
| 1784 |
j = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf; |
| 1785 |
k++; |
| 1786 |
while (k <= j) {
|
| 1787 |
tcg_ctx.gen_opc_instr_start[k++] = 0;
|
| 1788 |
} |
| 1789 |
} else {
|
| 1790 |
tb->size = dc->pc - pc_start; |
| 1791 |
tb->icount = num_insns; |
| 1792 |
} |
| 1793 |
|
| 1794 |
#ifdef DEBUG_DISAS
|
| 1795 |
if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
|
| 1796 |
qemu_log("\n");
|
| 1797 |
log_target_disas(&cpu->env, pc_start, dc->pc - pc_start, 0);
|
| 1798 |
qemu_log("\nisize=%d osize=%td\n",
|
| 1799 |
dc->pc - pc_start, tcg_ctx.gen_opc_ptr - |
| 1800 |
tcg_ctx.gen_opc_buf); |
| 1801 |
} |
| 1802 |
#endif
|
| 1803 |
} |
| 1804 |
|
| 1805 |
void gen_intermediate_code(CPUOpenRISCState *env, struct TranslationBlock *tb) |
| 1806 |
{
|
| 1807 |
gen_intermediate_code_internal(openrisc_env_get_cpu(env), tb, 0);
|
| 1808 |
} |
| 1809 |
|
| 1810 |
void gen_intermediate_code_pc(CPUOpenRISCState *env,
|
| 1811 |
struct TranslationBlock *tb)
|
| 1812 |
{
|
| 1813 |
gen_intermediate_code_internal(openrisc_env_get_cpu(env), tb, 1);
|
| 1814 |
} |
| 1815 |
|
| 1816 |
void openrisc_cpu_dump_state(CPUState *cs, FILE *f,
|
| 1817 |
fprintf_function cpu_fprintf, |
| 1818 |
int flags)
|
| 1819 |
{
|
| 1820 |
OpenRISCCPU *cpu = OPENRISC_CPU(cs); |
| 1821 |
CPUOpenRISCState *env = &cpu->env; |
| 1822 |
int i;
|
| 1823 |
|
| 1824 |
cpu_fprintf(f, "PC=%08x\n", env->pc);
|
| 1825 |
for (i = 0; i < 32; ++i) { |
| 1826 |
cpu_fprintf(f, "R%02d=%08x%c", i, env->gpr[i],
|
| 1827 |
(i % 4) == 3 ? '\n' : ' '); |
| 1828 |
} |
| 1829 |
} |
| 1830 |
|
| 1831 |
void restore_state_to_opc(CPUOpenRISCState *env, TranslationBlock *tb,
|
| 1832 |
int pc_pos)
|
| 1833 |
{
|
| 1834 |
env->pc = tcg_ctx.gen_opc_pc[pc_pos]; |
| 1835 |
} |