motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-17 23:22:12 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

target/i386: Do not apply REX to MMX operands

Browse source 
Cc: qemu-stable@nongnu.org
Fixes: b3e22b2318 ("target/i386: add core of new i386 decoder")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2495
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Link: https://lore.kernel.org/r/20240812025844.58956-2-richard.henderson@linaro.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 416f2b16c0)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Richard Henderson 2024-08-12 12:58:42 +10:00 • committed by Michael Tokarev
parent 450fe533b7
commit c42bf733f8
1 changed files with 4 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

5
target/i386/tcg/decode-new.c.inc
View file

@ -1272,7 +1272,10 @@ static bool decode_op(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode,
op->unit = X86_OP_SSE;
}
get_reg:
op->n = ((get_modrm(s, env) >> 3) & 7) | REX_R(s);
op->n = ((get_modrm(s, env) >> 3) & 7);
if (op->unit != X86_OP_MMX) {
op->n |= REX_R(s);
}
break;
case X86_TYPE_E: /* ALU modrm operand */