diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index b7972f0ff5..7fec582358 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -2788,146 +2788,196 @@ typedef void (*SSEFunc_0_ppi)(TCGv_ptr reg_a, TCGv_ptr reg_b, TCGv_i32 val);
 typedef void (*SSEFunc_0_eppt)(TCGv_ptr env, TCGv_ptr reg_a, TCGv_ptr reg_b,
                                TCGv val);
 
-#define SSE_SPECIAL ((void *)1)
-#define SSE_DUMMY ((void *)2)
+#define SSE_OPF_V0        (1 << 0) /* vex.v must be 1111b (only 2 operands) */
+#define SSE_OPF_CMP       (1 << 1) /* does not write for first operand */
+#define SSE_OPF_BLENDV    (1 << 2) /* blendv* instruction */
+#define SSE_OPF_SPECIAL   (1 << 3) /* magic */
+#define SSE_OPF_3DNOW     (1 << 4) /* 3DNow! instruction */
+#define SSE_OPF_MMX       (1 << 5) /* MMX/integer/AVX2 instruction */
+#define SSE_OPF_SCALAR    (1 << 6) /* Has SSE scalar variants */
+#define SSE_OPF_AVX2      (1 << 7) /* AVX2 instruction */
+#define SSE_OPF_SHUF      (1 << 9) /* pshufx/shufpx */
 
-#define MMX_OP2(x) { gen_helper_ ## x ## _mmx, gen_helper_ ## x ## _xmm }
-#define SSE_FOP(x) { gen_helper_ ## x ## ps, gen_helper_ ## x ## pd, \
-                     gen_helper_ ## x ## ss, gen_helper_ ## x ## sd, }
+#define OP(op, flags, a, b, c, d)       \
+    {flags, {a, b, c, d} }
 
-static const SSEFunc_0_epp sse_op_table1[256][4] = {
+#define MMX_OP(x) OP(op2, SSE_OPF_MMX, \
+        gen_helper_ ## x ## _mmx, gen_helper_ ## x ## _xmm, NULL, NULL)
+
+#define SSE_FOP(name) OP(op2, SSE_OPF_SCALAR, \
+        gen_helper_##name##ps, gen_helper_##name##pd, \
+        gen_helper_##name##ss, gen_helper_##name##sd)
+#define SSE_OP(sname, dname, op, flags) OP(op, flags, \
+        gen_helper_##sname##_xmm, gen_helper_##dname##_xmm, NULL, NULL)
+
+struct SSEOpHelper_table1 {
+    int flags;
+    SSEFunc_0_epp op[4];
+};
+
+#define SSE_3DNOW { SSE_OPF_3DNOW }
+#define SSE_SPECIAL { SSE_OPF_SPECIAL }
+
+static const struct SSEOpHelper_table1 sse_op_table1[256] = {
     /* 3DNow! extensions */
-    [0x0e] = { SSE_DUMMY }, /* femms */
-    [0x0f] = { SSE_DUMMY }, /* pf... */
+    [0x0e] = SSE_SPECIAL, /* femms */
+    [0x0f] = SSE_3DNOW, /* pf... (sse_op_table5) */
     /* pure SSE operations */
-    [0x10] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* movups, movupd, movss, movsd */
-    [0x11] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* movups, movupd, movss, movsd */
-    [0x12] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* movlps, movlpd, movsldup, movddup */
-    [0x13] = { SSE_SPECIAL, SSE_SPECIAL },  /* movlps, movlpd */
-    [0x14] = { gen_helper_punpckldq_xmm, gen_helper_punpcklqdq_xmm },
-    [0x15] = { gen_helper_punpckhdq_xmm, gen_helper_punpckhqdq_xmm },
-    [0x16] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL },  /* movhps, movhpd, movshdup */
-    [0x17] = { SSE_SPECIAL, SSE_SPECIAL },  /* movhps, movhpd */
+    [0x10] = SSE_SPECIAL, /* movups, movupd, movss, movsd */
+    [0x11] = SSE_SPECIAL, /* movups, movupd, movss, movsd */
+    [0x12] = SSE_SPECIAL, /* movlps, movlpd, movsldup, movddup */
+    [0x13] = SSE_SPECIAL, /* movlps, movlpd */
+    [0x14] = SSE_OP(punpckldq, punpcklqdq, op2, 0), /* unpcklps, unpcklpd */
+    [0x15] = SSE_OP(punpckhdq, punpckhqdq, op2, 0), /* unpckhps, unpckhpd */
+    [0x16] = SSE_SPECIAL, /* movhps, movhpd, movshdup */
+    [0x17] = SSE_SPECIAL, /* movhps, movhpd */
 
-    [0x28] = { SSE_SPECIAL, SSE_SPECIAL },  /* movaps, movapd */
-    [0x29] = { SSE_SPECIAL, SSE_SPECIAL },  /* movaps, movapd */
-    [0x2a] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* cvtpi2ps, cvtpi2pd, cvtsi2ss, cvtsi2sd */
-    [0x2b] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* movntps, movntpd, movntss, movntsd */
-    [0x2c] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* cvttps2pi, cvttpd2pi, cvttsd2si, cvttss2si */
-    [0x2d] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* cvtps2pi, cvtpd2pi, cvtsd2si, cvtss2si */
-    [0x2e] = { gen_helper_ucomiss, gen_helper_ucomisd },
-    [0x2f] = { gen_helper_comiss, gen_helper_comisd },
-    [0x50] = { SSE_SPECIAL, SSE_SPECIAL }, /* movmskps, movmskpd */
-    [0x51] = SSE_FOP(sqrt),
-    [0x52] = { gen_helper_rsqrtps, NULL, gen_helper_rsqrtss, NULL },
-    [0x53] = { gen_helper_rcpps, NULL, gen_helper_rcpss, NULL },
-    [0x54] = { gen_helper_pand_xmm, gen_helper_pand_xmm }, /* andps, andpd */
-    [0x55] = { gen_helper_pandn_xmm, gen_helper_pandn_xmm }, /* andnps, andnpd */
-    [0x56] = { gen_helper_por_xmm, gen_helper_por_xmm }, /* orps, orpd */
-    [0x57] = { gen_helper_pxor_xmm, gen_helper_pxor_xmm }, /* xorps, xorpd */
+    [0x28] = SSE_SPECIAL, /* movaps, movapd */
+    [0x29] = SSE_SPECIAL, /* movaps, movapd */
+    [0x2a] = SSE_SPECIAL, /* cvtpi2ps, cvtpi2pd, cvtsi2ss, cvtsi2sd */
+    [0x2b] = SSE_SPECIAL, /* movntps, movntpd, movntss, movntsd */
+    [0x2c] = SSE_SPECIAL, /* cvttps2pi, cvttpd2pi, cvttsd2si, cvttss2si */
+    [0x2d] = SSE_SPECIAL, /* cvtps2pi, cvtpd2pi, cvtsd2si, cvtss2si */
+    [0x2e] = OP(op1, SSE_OPF_CMP | SSE_OPF_SCALAR | SSE_OPF_V0,
+            gen_helper_ucomiss, gen_helper_ucomisd, NULL, NULL),
+    [0x2f] = OP(op1, SSE_OPF_CMP | SSE_OPF_SCALAR | SSE_OPF_V0,
+            gen_helper_comiss, gen_helper_comisd, NULL, NULL),
+    [0x50] = SSE_SPECIAL, /* movmskps, movmskpd */
+    [0x51] = OP(op1, SSE_OPF_SCALAR | SSE_OPF_V0,
+                gen_helper_sqrtps, gen_helper_sqrtpd,
+                gen_helper_sqrtss, gen_helper_sqrtsd),
+    [0x52] = OP(op1, SSE_OPF_SCALAR | SSE_OPF_V0,
+                gen_helper_rsqrtps, NULL, gen_helper_rsqrtss, NULL),
+    [0x53] = OP(op1, SSE_OPF_SCALAR | SSE_OPF_V0,
+                gen_helper_rcpps, NULL, gen_helper_rcpss, NULL),
+    [0x54] = SSE_OP(pand, pand, op2, 0), /* andps, andpd */
+    [0x55] = SSE_OP(pandn, pandn, op2, 0), /* andnps, andnpd */
+    [0x56] = SSE_OP(por, por, op2, 0), /* orps, orpd */
+    [0x57] = SSE_OP(pxor, pxor, op2, 0), /* xorps, xorpd */
     [0x58] = SSE_FOP(add),
     [0x59] = SSE_FOP(mul),
-    [0x5a] = { gen_helper_cvtps2pd, gen_helper_cvtpd2ps,
-               gen_helper_cvtss2sd, gen_helper_cvtsd2ss },
-    [0x5b] = { gen_helper_cvtdq2ps, gen_helper_cvtps2dq, gen_helper_cvttps2dq },
+    [0x5a] = OP(op1, SSE_OPF_SCALAR | SSE_OPF_V0,
+                gen_helper_cvtps2pd, gen_helper_cvtpd2ps,
+                gen_helper_cvtss2sd, gen_helper_cvtsd2ss),
+    [0x5b] = OP(op1, SSE_OPF_V0,
+                gen_helper_cvtdq2ps, gen_helper_cvtps2dq,
+                gen_helper_cvttps2dq, NULL),
     [0x5c] = SSE_FOP(sub),
     [0x5d] = SSE_FOP(min),
     [0x5e] = SSE_FOP(div),
     [0x5f] = SSE_FOP(max),
 
-    [0xc2] = SSE_FOP(cmpeq),
-    [0xc6] = { (SSEFunc_0_epp)gen_helper_shufps,
-               (SSEFunc_0_epp)gen_helper_shufpd }, /* XXX: casts */
+    [0xc2] = SSE_FOP(cmpeq), /* sse_op_table4 */
+    [0xc6] = OP(dummy, SSE_OPF_SHUF, (SSEFunc_0_epp)gen_helper_shufps,
+                (SSEFunc_0_epp)gen_helper_shufpd, NULL, NULL),
 
     /* SSSE3, SSE4, MOVBE, CRC32, BMI1, BMI2, ADX.  */
-    [0x38] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL },
-    [0x3a] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL },
+    [0x38] = SSE_SPECIAL,
+    [0x3a] = SSE_SPECIAL,
 
     /* MMX ops and their SSE extensions */
-    [0x60] = MMX_OP2(punpcklbw),
-    [0x61] = MMX_OP2(punpcklwd),
-    [0x62] = MMX_OP2(punpckldq),
-    [0x63] = MMX_OP2(packsswb),
-    [0x64] = MMX_OP2(pcmpgtb),
-    [0x65] = MMX_OP2(pcmpgtw),
-    [0x66] = MMX_OP2(pcmpgtl),
-    [0x67] = MMX_OP2(packuswb),
-    [0x68] = MMX_OP2(punpckhbw),
-    [0x69] = MMX_OP2(punpckhwd),
-    [0x6a] = MMX_OP2(punpckhdq),
-    [0x6b] = MMX_OP2(packssdw),
-    [0x6c] = { NULL, gen_helper_punpcklqdq_xmm },
-    [0x6d] = { NULL, gen_helper_punpckhqdq_xmm },
-    [0x6e] = { SSE_SPECIAL, SSE_SPECIAL }, /* movd mm, ea */
-    [0x6f] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* movq, movdqa, , movqdu */
-    [0x70] = { (SSEFunc_0_epp)gen_helper_pshufw_mmx,
-               (SSEFunc_0_epp)gen_helper_pshufd_xmm,
-               (SSEFunc_0_epp)gen_helper_pshufhw_xmm,
-               (SSEFunc_0_epp)gen_helper_pshuflw_xmm }, /* XXX: casts */
-    [0x71] = { SSE_SPECIAL, SSE_SPECIAL }, /* shiftw */
-    [0x72] = { SSE_SPECIAL, SSE_SPECIAL }, /* shiftd */
-    [0x73] = { SSE_SPECIAL, SSE_SPECIAL }, /* shiftq */
-    [0x74] = MMX_OP2(pcmpeqb),
-    [0x75] = MMX_OP2(pcmpeqw),
-    [0x76] = MMX_OP2(pcmpeql),
-    [0x77] = { SSE_DUMMY }, /* emms */
-    [0x78] = { NULL, SSE_SPECIAL, NULL, SSE_SPECIAL }, /* extrq_i, insertq_i */
-    [0x79] = { NULL, gen_helper_extrq_r, NULL, gen_helper_insertq_r },
-    [0x7c] = { NULL, gen_helper_haddpd, NULL, gen_helper_haddps },
-    [0x7d] = { NULL, gen_helper_hsubpd, NULL, gen_helper_hsubps },
-    [0x7e] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* movd, movd, , movq */
-    [0x7f] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* movq, movdqa, movdqu */
-    [0xc4] = { SSE_SPECIAL, SSE_SPECIAL }, /* pinsrw */
-    [0xc5] = { SSE_SPECIAL, SSE_SPECIAL }, /* pextrw */
-    [0xd0] = { NULL, gen_helper_addsubpd, NULL, gen_helper_addsubps },
-    [0xd1] = MMX_OP2(psrlw),
-    [0xd2] = MMX_OP2(psrld),
-    [0xd3] = MMX_OP2(psrlq),
-    [0xd4] = MMX_OP2(paddq),
-    [0xd5] = MMX_OP2(pmullw),
-    [0xd6] = { NULL, SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL },
-    [0xd7] = { SSE_SPECIAL, SSE_SPECIAL }, /* pmovmskb */
-    [0xd8] = MMX_OP2(psubusb),
-    [0xd9] = MMX_OP2(psubusw),
-    [0xda] = MMX_OP2(pminub),
-    [0xdb] = MMX_OP2(pand),
-    [0xdc] = MMX_OP2(paddusb),
-    [0xdd] = MMX_OP2(paddusw),
-    [0xde] = MMX_OP2(pmaxub),
-    [0xdf] = MMX_OP2(pandn),
-    [0xe0] = MMX_OP2(pavgb),
-    [0xe1] = MMX_OP2(psraw),
-    [0xe2] = MMX_OP2(psrad),
-    [0xe3] = MMX_OP2(pavgw),
-    [0xe4] = MMX_OP2(pmulhuw),
-    [0xe5] = MMX_OP2(pmulhw),
-    [0xe6] = { NULL, gen_helper_cvttpd2dq, gen_helper_cvtdq2pd, gen_helper_cvtpd2dq },
-    [0xe7] = { SSE_SPECIAL , SSE_SPECIAL },  /* movntq, movntq */
-    [0xe8] = MMX_OP2(psubsb),
-    [0xe9] = MMX_OP2(psubsw),
-    [0xea] = MMX_OP2(pminsw),
-    [0xeb] = MMX_OP2(por),
-    [0xec] = MMX_OP2(paddsb),
-    [0xed] = MMX_OP2(paddsw),
-    [0xee] = MMX_OP2(pmaxsw),
-    [0xef] = MMX_OP2(pxor),
-    [0xf0] = { NULL, NULL, NULL, SSE_SPECIAL }, /* lddqu */
-    [0xf1] = MMX_OP2(psllw),
-    [0xf2] = MMX_OP2(pslld),
-    [0xf3] = MMX_OP2(psllq),
-    [0xf4] = MMX_OP2(pmuludq),
-    [0xf5] = MMX_OP2(pmaddwd),
-    [0xf6] = MMX_OP2(psadbw),
-    [0xf7] = { (SSEFunc_0_epp)gen_helper_maskmov_mmx,
-               (SSEFunc_0_epp)gen_helper_maskmov_xmm }, /* XXX: casts */
-    [0xf8] = MMX_OP2(psubb),
-    [0xf9] = MMX_OP2(psubw),
-    [0xfa] = MMX_OP2(psubl),
-    [0xfb] = MMX_OP2(psubq),
-    [0xfc] = MMX_OP2(paddb),
-    [0xfd] = MMX_OP2(paddw),
-    [0xfe] = MMX_OP2(paddl),
+    [0x60] = MMX_OP(punpcklbw),
+    [0x61] = MMX_OP(punpcklwd),
+    [0x62] = MMX_OP(punpckldq),
+    [0x63] = MMX_OP(packsswb),
+    [0x64] = MMX_OP(pcmpgtb),
+    [0x65] = MMX_OP(pcmpgtw),
+    [0x66] = MMX_OP(pcmpgtl),
+    [0x67] = MMX_OP(packuswb),
+    [0x68] = MMX_OP(punpckhbw),
+    [0x69] = MMX_OP(punpckhwd),
+    [0x6a] = MMX_OP(punpckhdq),
+    [0x6b] = MMX_OP(packssdw),
+    [0x6c] = OP(op2, SSE_OPF_MMX,
+                NULL, gen_helper_punpcklqdq_xmm, NULL, NULL),
+    [0x6d] = OP(op2, SSE_OPF_MMX,
+                NULL, gen_helper_punpckhqdq_xmm, NULL, NULL),
+    [0x6e] = SSE_SPECIAL, /* movd mm, ea */
+    [0x6f] = SSE_SPECIAL, /* movq, movdqa, , movqdu */
+    [0x70] = OP(op1i, SSE_OPF_SHUF | SSE_OPF_MMX | SSE_OPF_V0,
+            (SSEFunc_0_epp)gen_helper_pshufw_mmx,
+            (SSEFunc_0_epp)gen_helper_pshufd_xmm,
+            (SSEFunc_0_epp)gen_helper_pshufhw_xmm,
+            (SSEFunc_0_epp)gen_helper_pshuflw_xmm),
+    [0x71] = SSE_SPECIAL, /* shiftw */
+    [0x72] = SSE_SPECIAL, /* shiftd */
+    [0x73] = SSE_SPECIAL, /* shiftq */
+    [0x74] = MMX_OP(pcmpeqb),
+    [0x75] = MMX_OP(pcmpeqw),
+    [0x76] = MMX_OP(pcmpeql),
+    [0x77] = SSE_SPECIAL, /* emms */
+    [0x78] = SSE_SPECIAL, /* extrq_i, insertq_i (sse4a) */
+    [0x79] = OP(op1, SSE_OPF_V0,
+            NULL, gen_helper_extrq_r, NULL, gen_helper_insertq_r),
+    [0x7c] = OP(op2, 0,
+                NULL, gen_helper_haddpd, NULL, gen_helper_haddps),
+    [0x7d] = OP(op2, 0,
+                NULL, gen_helper_hsubpd, NULL, gen_helper_hsubps),
+    [0x7e] = SSE_SPECIAL, /* movd, movd, , movq */
+    [0x7f] = SSE_SPECIAL, /* movq, movdqa, movdqu */
+    [0xc4] = SSE_SPECIAL, /* pinsrw */
+    [0xc5] = SSE_SPECIAL, /* pextrw */
+    [0xd0] = OP(op2, 0,
+                NULL, gen_helper_addsubpd, NULL, gen_helper_addsubps),
+    [0xd1] = MMX_OP(psrlw),
+    [0xd2] = MMX_OP(psrld),
+    [0xd3] = MMX_OP(psrlq),
+    [0xd4] = MMX_OP(paddq),
+    [0xd5] = MMX_OP(pmullw),
+    [0xd6] = SSE_SPECIAL,
+    [0xd7] = SSE_SPECIAL, /* pmovmskb */
+    [0xd8] = MMX_OP(psubusb),
+    [0xd9] = MMX_OP(psubusw),
+    [0xda] = MMX_OP(pminub),
+    [0xdb] = MMX_OP(pand),
+    [0xdc] = MMX_OP(paddusb),
+    [0xdd] = MMX_OP(paddusw),
+    [0xde] = MMX_OP(pmaxub),
+    [0xdf] = MMX_OP(pandn),
+    [0xe0] = MMX_OP(pavgb),
+    [0xe1] = MMX_OP(psraw),
+    [0xe2] = MMX_OP(psrad),
+    [0xe3] = MMX_OP(pavgw),
+    [0xe4] = MMX_OP(pmulhuw),
+    [0xe5] = MMX_OP(pmulhw),
+    [0xe6] = OP(op1, SSE_OPF_V0,
+            NULL, gen_helper_cvttpd2dq,
+            gen_helper_cvtdq2pd, gen_helper_cvtpd2dq),
+    [0xe7] = SSE_SPECIAL,  /* movntq, movntq */
+    [0xe8] = MMX_OP(psubsb),
+    [0xe9] = MMX_OP(psubsw),
+    [0xea] = MMX_OP(pminsw),
+    [0xeb] = MMX_OP(por),
+    [0xec] = MMX_OP(paddsb),
+    [0xed] = MMX_OP(paddsw),
+    [0xee] = MMX_OP(pmaxsw),
+    [0xef] = MMX_OP(pxor),
+    [0xf0] = SSE_SPECIAL, /* lddqu */
+    [0xf1] = MMX_OP(psllw),
+    [0xf2] = MMX_OP(pslld),
+    [0xf3] = MMX_OP(psllq),
+    [0xf4] = MMX_OP(pmuludq),
+    [0xf5] = MMX_OP(pmaddwd),
+    [0xf6] = MMX_OP(psadbw),
+    [0xf7] = OP(op1t, SSE_OPF_MMX | SSE_OPF_V0,
+                (SSEFunc_0_epp)gen_helper_maskmov_mmx,
+                (SSEFunc_0_epp)gen_helper_maskmov_xmm, NULL, NULL),
+    [0xf8] = MMX_OP(psubb),
+    [0xf9] = MMX_OP(psubw),
+    [0xfa] = MMX_OP(psubl),
+    [0xfb] = MMX_OP(psubq),
+    [0xfc] = MMX_OP(paddb),
+    [0xfd] = MMX_OP(paddw),
+    [0xfe] = MMX_OP(paddl),
 };
+#undef MMX_OP
+#undef OP
+#undef SSE_FOP
+#undef SSE_OP
+#undef SSE_SPECIAL
+
+#define MMX_OP2(x) { gen_helper_ ## x ## _mmx, gen_helper_ ## x ## _xmm }
+#define SSE_SPECIAL_FN ((void *)1)
 
 static const SSEFunc_0_epp sse_op_table2[3 * 8][2] = {
     [0 + 2] = MMX_OP2(psrlw),
@@ -2970,6 +3020,8 @@ static const SSEFunc_l_ep sse_op_table3bq[] = {
 };
 #endif
 
+#define SSE_FOP(x) { gen_helper_ ## x ## ps, gen_helper_ ## x ## pd, \
+                     gen_helper_ ## x ## ss, gen_helper_ ## x ## sd, }
 static const SSEFunc_0_epp sse_op_table4[8][4] = {
     SSE_FOP(cmpeq),
     SSE_FOP(cmplt),
@@ -2980,6 +3032,7 @@ static const SSEFudefine SSE42_OP(x) { { NULL, gen_helper_ ## x ## _xmm }, CPUID_EXT_SSE42 }
-#define SSE41_SPECIAL { { NULL, SSE_SPECIAL }, CPUID_EXT_SSE41 }
+#define SSE41_SPECIAL { { NULL, SSE_SPECIAL_FN }, CPUID_EXT_SSE41 }
 #define PCLMULQDQ_OP(x) { { NULL, gen_helper_ ## x ## _xmm }, \
         CPUID_EXT_PCLMULQDQ }
 #define AESNI_OP(x) { { NULL, gen_helper_ ## x ## _xmm }, CPUID_EXT_AES }
@@ -3112,6 +3165,7 @@ static void gen_sse(CPUX86State *env, DisasContext *s, int b,
 {
     int b1, op1_offset, op2_offset, is_xmm, val;
