falso
/
qemu-irix
mirror of https://github.com/n64decomp/qemu-irix.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

target-i386: tcg: Accept clwb instruction 

Accept the clwb instruction (66 0F AE /6) if its corresponding feature
flag is enabled on CPUID[7].

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This commit is contained in:
Eduardo Habkost 2015-11-04 19:24:45 -02:00
parent 4b59f39bc9
commit 5e1fac2dba
1 changed files with 12 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
target-i386/translate.c
View File

@ -7716,10 +7716,21 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s,
} }
break; break;
case 5: /* lfence */ case 5: /* lfence */
case 6: /* mfence */
if ((modrm & 0xc7) != 0xc0 || !(s->cpuid_features & CPUID_SSE2)) if ((modrm & 0xc7) != 0xc0 || !(s->cpuid_features & CPUID_SSE2))
goto illegal_op; goto illegal_op;
break; break;
case 6: /* mfence/clwb */
if (s->prefix & PREFIX_DATA) {
/* clwb */
if (!(s->cpuid_7_0_ebx_features & CPUID_7_0_EBX_CLWB))
goto illegal_op;
gen_nop_modrm(env, s, modrm);
} else {
/* mfence */
if ((modrm & 0xc7) != 0xc0 || !(s->cpuid_features & CPUID_SSE2))
goto illegal_op;
}
break;
case 7: /* sfence / clflush */ case 7: /* sfence / clflush */
if ((modrm & 0xc7) == 0xc0) { if ((modrm & 0xc7) == 0xc0) {
/* sfence */ /* sfence */