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converted INTO/CMPXCHG8B to TCG 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4510 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2008-05-21 13:29:45 +00:00
parent 9d0763c4c0
commit 07be379fb1
4 changed files with 12 additions and 20 deletions
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9
target-i386/helper.c
View File

@ -1849,6 +1849,15 @@ void helper_das(void)
FORCE_RET();
}
void helper_into(int next_eip_addend)
{
int eflags;
eflags = cc_table[CC_OP].compute_all();
if (eflags & CC_O) {
raise_interrupt(EXCP04_INTO, 1, 0, next_eip_addend);
}
}
void helper_cmpxchg8b(target_ulong a0)
{
uint64_t d;

1
target-i386/helper.h
View File

@ -71,6 +71,7 @@ void helper_reset_inhibit_irq(void);
void helper_boundw(target_ulong a0, int v);
void helper_boundl(target_ulong a0, int v);
void helper_rsm(void);
void helper_into(int next_eip_addend);
void helper_cmpxchg8b(target_ulong a0);
void helper_single_step(void);
void helper_cpuid(void);

18
target-i386/op.c
View File

@ -123,24 +123,6 @@
#endif
/* constant load & misc op */
/* XXX: consistent names */
void OPPROTO op_into(void)
{
int eflags;
eflags = cc_table[CC_OP].compute_all();
if (eflags & CC_O) {
raise_interrupt(EXCP04_INTO, 1, 0, PARAM1);
}
FORCE_RET();
}
void OPPROTO op_cmpxchg8b(void)
{
helper_cmpxchg8b(A0);
}
/* multiple size ops */
#define ldul ldl

4
target-i386/translate.c
View File

@ -4308,7 +4308,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
if (s->cc_op != CC_OP_DYNAMIC)
gen_op_set_cc_op(s->cc_op);
gen_lea_modrm(s, modrm, &reg_addr, &offset_addr);
gen_op_cmpxchg8b();
tcg_gen_helper_0_1(helper_cmpxchg8b, cpu_A0);
s->cc_op = CC_OP_EFLAGS;
break;
@ -6016,7 +6016,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
if (s->cc_op != CC_OP_DYNAMIC)
gen_op_set_cc_op(s->cc_op);
gen_jmp_im(pc_start - s->cs_base);
gen_op_into(s->pc - pc_start);
tcg_gen_helper_0_1(helper_into, tcg_const_i32(s->pc - pc_start));
break;
case 0xf1: /* icebp (undocumented, exits to external debugger) */
if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_ICEBP))