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fxsave/fxrstor fix 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1738 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2006-02-04 17:40:20 +00:00
parent 7fb843f8cc
commit 0fd14b72ac
1 changed files with 12 additions and 2 deletions
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14
target-i386/translate.c
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@ -5803,14 +5803,24 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
op = (modrm >> 3) & 7;
switch(op) {
case 0: /* fxsave */
if (mod == 3 || !(s->cpuid_features & CPUID_FXSR))
if (mod == 3 || !(s->cpuid_features & CPUID_FXSR) ||
(s->flags & HF_EM_MASK))
goto illegal_op;
if (s->flags & HF_TS_MASK) {
gen_exception(s, EXCP07_PREX, pc_start - s->cs_base);
break;
}
gen_lea_modrm(s, modrm, &reg_addr, &offset_addr);
gen_op_fxsave_A0((s->dflag == 2));
break;
case 1: /* fxrstor */
if (mod == 3 || !(s->cpuid_features & CPUID_FXSR))
if (mod == 3 || !(s->cpuid_features & CPUID_FXSR) ||
(s->flags & HF_EM_MASK))
goto illegal_op;
if (s->flags & HF_TS_MASK) {
gen_exception(s, EXCP07_PREX, pc_start - s->cs_base);
break;
}
gen_lea_modrm(s, modrm, &reg_addr, &offset_addr);
gen_op_fxrstor_A0((s->dflag == 2));
break;