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cmpxchg8b fix - added cmpxchg16b

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4522 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2008-05-22 09:52:38 +00:00
parent 1130328ecb
commit 1b9d9ebb8a
3 changed files with 47 additions and 7 deletions
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25
target-i386/translate.c
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@ -4333,11 +4333,26 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
mod = (modrm >> 6) & 3;
if ((mod == 3) || ((modrm & 0x38) != 0x8))
goto illegal_op;
gen_jmp_im(pc_start - s->cs_base);
if (s->cc_op != CC_OP_DYNAMIC)
gen_op_set_cc_op(s->cc_op);
gen_lea_modrm(s, modrm, &reg_addr, &offset_addr);
tcg_gen_helper_0_1(helper_cmpxchg8b, cpu_A0);
#ifdef TARGET_X86_64
if (dflag == 2) {
if (!(s->cpuid_ext_features & CPUID_EXT_CX16))
goto illegal_op;
gen_jmp_im(pc_start - s->cs_base);
if (s->cc_op != CC_OP_DYNAMIC)
gen_op_set_cc_op(s->cc_op);
gen_lea_modrm(s, modrm, &reg_addr, &offset_addr);
tcg_gen_helper_0_1(helper_cmpxchg16b, cpu_A0);
} else
#endif
{
if (!(s->cpuid_features & CPUID_CX8))
goto illegal_op;
gen_jmp_im(pc_start - s->cs_base);
if (s->cc_op != CC_OP_DYNAMIC)
gen_op_set_cc_op(s->cc_op);
gen_lea_modrm(s, modrm, &reg_addr, &offset_addr);
tcg_gen_helper_0_1(helper_cmpxchg8b, cpu_A0);
}
s->cc_op = CC_OP_EFLAGS;
break;