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X-Received-From: 2a00:1450:400c:c0c::244 Subject: [Qemu-devel] [PULL 20/20] Add missing bit for SSE instr in VEX decoding X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Eugene Minibaev Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDKM_2 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Eugene Minibaev The 2-byte VEX prefix imples a leading 0Fh opcode byte. Signed-off-by: Eugene Minibaev Signed-off-by: Paolo Bonzini --- target/i386/translate.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/target/i386/translate.c b/target/i386/translate.c index 3b7ce92..c9ed8dc 100644 --- a/target/i386/translate.c +++ b/target/i386/translate.c @@ -4563,9 +4563,11 @@ static target_ulong disas_insn(DisasContext *s, CPUS= tate *cpu) #endif rex_r =3D (~vex2 >> 4) & 8; if (b =3D=3D 0xc5) { + /* 2-byte VEX prefix: RVVVVlpp, implied 0f leading opcode = byte */ vex3 =3D vex2; - b =3D x86_ldub_code(env, s); + b =3D x86_ldub_code(env, s) | 0x100; } else { + /* 3-byte VEX prefix: RXBmmmmm wVVVVlpp */ #ifdef TARGET_X86_64 s->rex_x =3D (~vex2 >> 3) & 8; s->rex_b =3D (~vex2 >> 2) & 8; --=20 1.8.3.1