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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=98.137.68.205; envelope-from=lw945lw945@yahoo.com; helo=sonic304-24.consmr.mail.gq1.yahoo.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @yahoo.com) X-ZM-MESSAGEID: 1648220193362100001 Content-Type: text/plain; charset="utf-8" Move EMMS and FEMMS instructions out of gen_sse to avoid the requirement of CR0.TS and get a better code readability. Signed-off-by: Wei Li --- target/i386/tcg/translate.c | 28 ++++++++++++---------------- 1 file changed, 12 insertions(+), 16 deletions(-) diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c index 2a94d33742..fe9fcdae96 100644 --- a/target/i386/tcg/translate.c +++ b/target/i386/tcg/translate.c @@ -3154,20 +3154,6 @@ static void gen_sse(CPUX86State *env, DisasContext *= s, int b, && (b !=3D 0x38 && b !=3D 0x3a)) { goto unknown_op; } - if (b =3D=3D 0x0e) { - if (!(s->cpuid_ext2_features & CPUID_EXT2_3DNOW)) { - /* If we were fully decoding this we might use illegal_op. */ - goto unknown_op; - } - /* femms */ - gen_helper_emms(cpu_env); - return; - } - if (b =3D=3D 0x77) { - /* emms */ - gen_helper_emms(cpu_env); - return; - } /* prepare MMX state (XXX: optimize by storing fptt and fptags in the static cpu state) */ if (!is_xmm) { @@ -8451,14 +8437,24 @@ static target_ulong disas_insn(DisasContext *s, CPU= State *cpu) =20 set_cc_op(s, CC_OP_POPCNT); break; - case 0x10e ... 0x10f: + case 0x10e: /* femms */ + if (!(s->cpuid_ext2_features & CPUID_EXT2_3DNOW)) { + /* If we were fully decoding this we might use illegal_op. */ + goto unknown_op; + } + /* fall through */ + case 0x177: /* emms */ + gen_helper_emms(cpu_env); + break; + case 0x10f: /* 3DNow! instructions, ignore prefixes */ s->prefix &=3D ~(PREFIX_REPZ | PREFIX_REPNZ | PREFIX_DATA); /* fall through */ case 0x110 ... 0x117: case 0x128 ... 0x12f: case 0x138 ... 0x13a: - case 0x150 ... 0x179: + case 0x150 ... 0x176: + case 0x178 ... 0x179: case 0x17c ... 0x17f: case 0x1c2: case 0x1c4 ... 0x1c6: --=20 2.30.2 From nobody Mon Feb 9 16:35:43 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=reject dis=none) header.from=yahoo.com ARC-Seal: i=1; a=rsa-sha256; t=1648219961; cv=none; d=zohomail.com; s=zohoarc; b=F/JxhX2/q/Mi7EObvZNudYGAyK5k2lc8aKQL/l1hQZoBn+LdHWFEOoLO9NiWBgq3ZfaZIkBr+L/+RNPYWGIJciXX5uSsbhGBVu6uHfPxQeudjMjDqsVf8kuqFY+jXfSQdaSiLXeyu+jeW1Owm1X47Hj5veGlMYbK0kEkLRD/oZg= ARC-Message-Signature: i=1; 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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=98.137.68.205; envelope-from=lw945lw945@yahoo.com; helo=sonic304-24.consmr.mail.gq1.yahoo.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @yahoo.com) X-ZM-MESSAGEID: 1648219963786100001 Content-Type: text/plain; charset="utf-8" Some instructions in 'gen_sse' don't require CRO.TS=3D0 and the opcode of t= hem are 0F38F[0-F], 0F3AF[0-F]. Signed-off-by: Wei Li --- target/i386/tcg/translate.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c index fe9fcdae96..14cf11771c 100644 --- a/target/i386/tcg/translate.c +++ b/target/i386/tcg/translate.c @@ -3139,8 +3139,16 @@ static void gen_sse(CPUX86State *env, DisasContext *= s, int b, is_xmm =3D 1; } } + + modrm =3D x86_ldub_code(env, s); + reg =3D ((modrm >> 3) & 7); + if (is_xmm) { + reg |=3D REX_R(s); + } + mod =3D (modrm >> 6) & 3; /* simple MMX/SSE operation */ - if (s->flags & HF_TS_MASK) { + if ((s->flags & HF_TS_MASK) + && (!(modrm & 0xF0))) { gen_exception(s, EXCP07_PREX, pc_start - s->cs_base); return; } @@ -3159,13 +3167,6 @@ static void gen_sse(CPUX86State *env, DisasContext *= s, int b, if (!is_xmm) { gen_helper_enter_mmx(cpu_env); } - - modrm =3D x86_ldub_code(env, s); - reg =3D ((modrm >> 3) & 7); - if (is_xmm) { - reg |=3D REX_R(s); - } - mod =3D (modrm >> 6) & 3; if (sse_fn_epp =3D=3D SSE_SPECIAL) { b |=3D (b1 << 8); switch(b) { --=20 2.30.2