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target/m68k: Merge disas_m68k_insn into m68k_tr_translate_insn

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Backports commit a56f36c1d2bccbc50a53fa8093b93d205607f1b8 from qemu
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Richard Henderson 2018-06-15 11:39:27 -04:00 committed by Lioncash
parent a8540a30d2
commit 1a91edd263
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GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 20 additions and 26 deletions
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46
qemu/target/m68k/translate.c
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@ -6273,31 +6273,6 @@ void register_m68k_insns (CPUM68KState *env)
#undef INSN
}
/* ??? Some of this implementation is not exception safe. We should always
write back the result to memory before setting the condition codes. */
static void disas_m68k_insn(CPUM68KState * env, DisasContext *s)
{
TCGContext *tcg_ctx = s->uc->tcg_ctx;
// Unicorn: end address tells us to stop emulation
if (s->pc == s->uc->addr_end) {
gen_exception(s, s->pc, EXCP_HLT);
return;
}
// Unicorn: trace this instruction on request
if (HOOK_EXISTS_BOUNDED(env->uc, UC_HOOK_CODE, s->pc)) {
gen_uc_tracecode(tcg_ctx, 2, UC_HOOK_CODE_IDX, env->uc, s->pc);
// the callback might want to stop emulation immediately
check_exit_request(tcg_ctx);
}
uint16_t insn = read_im16(env, s);
((disas_proc)tcg_ctx->opcode_table[insn])(env, s, insn);
do_writebacks(s);
do_release(s);
}
static void m68k_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cpu)
{
DisasContext *dc = container_of(dcbase, DisasContext, base);
@ -6357,8 +6332,27 @@ static bool m68k_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cpu,
static void m68k_tr_translate_insn(DisasContextBase *dcbase, CPUState *cpu)
{
DisasContext *dc = container_of(dcbase, DisasContext, base);
CPUM68KState *env = cpu->env_ptr;
TCGContext *tcg_ctx = env->uc->tcg_ctx;
uint16_t insn = read_im16(env, dc);
// Unicorn: end address tells us to stop emulation
if (dc->pc == dc->uc->addr_end) {
gen_exception(dc, dc->pc, EXCP_HLT);
return;
}
// Unicorn: trace this instruction on request
if (HOOK_EXISTS_BOUNDED(env->uc, UC_HOOK_CODE, dc->pc)) {
gen_uc_tracecode(tcg_ctx, 2, UC_HOOK_CODE_IDX, env->uc, dc->pc);
// the callback might want to stop emulation immediately
check_exit_request(tcg_ctx);
}
((disas_proc)tcg_ctx->opcode_table[insn])(env, dc, insn);
do_writebacks(dc);
do_release(dc);
disas_m68k_insn(cpu->env_ptr, dc);
dc->base.pc_next = dc->pc;
if (dc->base.is_jmp == DISAS_NEXT) {