// Copyright (c) 2007 The Hewlett-Packard Development Company // All rights reserved. // // Redistribution and use of this software in source and binary forms, // with or without modification, are permitted provided that the // following conditions are met: // // The software must be used only for Non-Commercial Use which means any // use which is NOT directed to receiving any direct monetary // compensation for, or commercial advantage from such use. Illustrative // examples of non-commercial use are academic research, personal study, // teaching, education and corporate research & development. // Illustrative examples of commercial use are distributing products for // commercial advantage and providing services using the software for // commercial advantage. // // If you wish to use this software or functionality therein that may be // covered by patents for commercial use, please contact: // Director of Intellectual Property Licensing // Office of Strategy and Technology // Hewlett-Packard Company // 1501 Page Mill Road // Palo Alto, California 94304 // // Redistributions of source code must retain the above copyright notice, // this list of conditions and the following disclaimer. Redistributions // in binary form must reproduce the above copyright notice, this list of // conditions and the following disclaimer in the documentation and/or // other materials provided with the distribution. Neither the name of // the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. No right of // sublicense is granted herewith. Derivatives of the software and // output created using the software may be prepared, but only for // Non-Commercial Uses. Derivatives of the software may be shared with // others provided: (i) the others agree to abide by the list of // conditions herein which includes the Non-Commercial Use restrictions; // and (ii) such Derivatives of the software include the above copyright // notice to acknowledge the contribution from this software where // applicable, this list of conditions and the disclaimer below. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // // Authors: Gabe Black //////////////////////////////////////////////////////////////////// // // Decode the two byte opcodes // 0x2: decode OPCODE_PREFIXA { 0x0F: decode OPCODE_OP_TOP5 { format WarnUnimpl { 0x00: decode OPCODE_OP_BOTTOM3 { 0x00: group6(); 0x01: group7(); 0x02: lar_Gv_Ew(); 0x03: lsl_Gv_Ew(); //sandpile.org doesn't seem to know what this is... ? 0x04: loadall_or_reset_or_hang(); #if FULL_SYSTEM 0x05: syscall(); #else 0x05: SyscallInst::syscall('xc->syscall(rax)', IsSyscall); #endif 0x06: clts(); //sandpile.org says (AMD) after sysret, so I might want to check //if that means amd64 or AMD machines 0x07: loadall_or_sysret(); } 0x01: decode OPCODE_OP_BOTTOM3 { 0x0: invd(); 0x1: wbinvd(); 0x2: Inst::UD2(); 0x3: Inst::UD2(); 0x4: Inst::UD2(); 0x5: threednow(); 0x6: threednow(); 0x7: threednow(); } 0x02: decode LEGACY_DECODEVAL { // no prefix 0x0: decode OPCODE_OP_BOTTOM3 { 0x0: movups_Vo_Wo(); 0x1: movups_Wo_Vo(); 0x2: decode MODRM_MOD { 0x3: movhlps_Vq_VRq(); default: movlps_Vq_Mq(); } 0x3: movlps_Mq_Vq(); 0x4: unpcklps(); 0x5: unpckhps(); 0x6: decode MODRM_MOD { 0x3: movlhps_Vq_VRq(); default: movhps_Vq_Mq(); } 0x7: movhps_Mq_Vq(); } // repe (0xF3) 0x4: decode OPCODE_OP_BOTTOM3 { 0x0: movss_Vd_Wd(); 0x1: movss_Wd_Vd(); 0x2: movsldup_Vo_Wo(); 0x6: movshdup_Vo_Wo(); default: Inst::UD2(); } // operand size (0x66) 0x1: decode OPCODE_OP_BOTTOM3 { 0x0: movupd_Vo_Wo(); 0x1: movupd_Wo_Vo(); 0x2: movlpd_Vq_Mq(); 0x3: movlpd_Mq_Vq(); 0x4: unpcklpd_Vo_Wq(); 0x5: unpckhpd_Vo_Wo(); 0x6: movhpd_Vq_Mq(); 0x7: movhpd_Mq_Vq(); } // repne (0xF2) 0x8: decode OPCODE_OP_BOTTOM3 { 0x0: movsd_Vq_Wq(); 0x1: movsd_Wq_Vq(); 0x2: movddup_Vo_Wq(); default: Inst::UD2(); } default: Inst::UD2(); } 0x03: decode OPCODE_OP_BOTTOM3 { 0x0: group17(); 0x1: group17(); 0x2: group17(); 0x3: group17(); 0x4: group17(); 0x5: group17(); 0x6: group17(); 0x7: group17(); } 0x04: decode LEGACY_DECODEVAL { // no prefix 0x0: decode OPCODE_OP_BOTTOM3 { 0x0: mov_Rd_Cd(); 0x1: mov_Rd_Dd(); 0x2: mov_Cd_Rd(); 0x3: mov_Dd_Rd(); 0x4: mov_Rd_Td(); 0x6: mov_Td_Rd(); default: Inst::UD2(); } // lock prefix (0xF0) 0x2: decode OPCODE_OP_BOTTOM3 { 0x0: mov_Rd_CR8D(); 0x2: mov_CR8D_Rd(); } default: Inst::UD2(); } 0x05: decode LEGACY_DECODEVAL { // no prefix 0x0: decode OPCODE_OP_BOTTOM3 { 0x0: movaps_Vo_Wo(); 0x1: movaps_Wo_Vo(); 0x2: decode MODRM_MOD { 0x3: cvtpi2pS_Vq_Pq(); default: cvtpi2ps_Vq_Mq(); } 0x3: movntps_Mo_Vo(); 0x4: cvttps2pi_Pq_Wq(); 0x5: cvtpS2pi_Pq_Wq(); 0x6: ucomiss_Vd_Wd(); 0x7: comiss_Vd_Wd(); } // repe (0xF3) 0x4: decode OPCODE_OP_BOTTOM3 { 0x2: cvtsi2ss_Vd_Ed(); 0x4: cvttss2si_Gd_Wd(); 0x5: cvtss2si_Gd_Wd(); default: Inst::UD2(); } // operand size (0x66) 0x1: decode OPCODE_OP_BOTTOM3 { 0x0: movapd_Vo_Wo(); 0x1: movapd_Wo_Vo(); 0x2: decode MODRM_MOD { 0x3: cvtpi2pd_Vo_Pq(); default: cvtpi2pd_Vo_Mq(); } 0x3: movntpd_Mo_Vo(); 0x4: cvttpd2pi_Pq_Wo(); 0x5: cvtpd2pi_Pq_Wo(); 0x6: ucomisd_Vq_Wq(); 0x7: comisd_Vq_Wq(); } // repne (0xF2) 0x8: decode OPCODE_OP_BOTTOM3 { 0x2: cvtsi2sd_Vq_Ed(); 0x4: cvttsd2si_Gd_Wq(); 0x5: cvtsd2si_Gd_Wq(); default: Inst::UD2(); } default: Inst::UD2(); } 0x06: decode OPCODE_OP_BOTTOM3 { 0x0: wrmsr(); 0x1: rdtsc(); 0x2: rdmsr(); 0x3: rdpmc(); 0x4: sysenter(); 0x5: sysexit(); 0x6: Inst::UD2(); 0x7: getsec(); } 0x07: decode OPCODE_OP_BOTTOM3 { 0x0: three_byte_opcode(); 0x1: three_byte_opcode(); 0x2: three_byte_opcode(); 0x3: three_byte_opcode(); 0x4: three_byte_opcode(); 0x5: three_byte_opcode(); 0x6: three_byte_opcode(); 0x7: three_byte_opcode(); } format Inst { 0x08: decode OPCODE_OP_BOTTOM3 { 0x0: CMOVO(Gv,Ev); 0x1: CMOVNO(Gv,Ev); 0x2: CMOVB(Gv,Ev); 0x3: CMOVNB(Gv,Ev); 0x4: CMOVZ(Gv,Ev); 0x5: CMOVNZ(Gv,Ev); 0x6: CMOVBE(Gv,Ev); 0x7: CMOVNBE(Gv,Ev); } 0x09: decode OPCODE_OP_BOTTOM3 { 0x0: CMOVS(Gv,Ev); 0x1: CMOVNS(Gv,Ev); 0x2: CMOVP(Gv,Ev); 0x3: CMOVNP(Gv,Ev); 0x4: CMOVL(Gv,Ev); 0x5: CMOVNL(Gv,Ev); 0x6: CMOVLE(Gv,Ev); 0x7: CMOVNLE(Gv,Ev); } } 0x0A: decode LEGACY_DECODEVAL { // no prefix 0x0: decode OPCODE_OP_BOTTOM3 { 0x0: movmskps_Gd_VRo(); 0x1: sqrtps_Vo_Wo(); 0x2: rqsrtps_Vo_Wo(); 0x3: rcpps_Vo_Wo(); 0x4: andps_Vo_Wo(); 0x5: andnps_Vo_Wo(); 0x6: orps_Vo_Wo(); 0x7: xorps_Vo_Wo(); } // repe (0xF3) 0x4: decode OPCODE_OP_BOTTOM3 { 0x1: sqrtss_Vd_Wd(); 0x2: rsqrtss_Vd_Wd(); 0x3: rcpss_Vd_Wd(); default: Inst::UD2(); } // operand size (0x66) 0x1: decode OPCODE_OP_BOTTOM3 { 0x0: movmskpd_Gd_VRo(); 0x1: sqrtpd_Vo_Wo(); 0x4: andpd_Vo_Wo(); 0x5: andnpd_Vo_Wo(); 0x6: orpd_Vo_Wo(); 0x7: xorpd_Vo_Wo(); default: Inst::UD2(); } // repne (0xF2) 0x8: decode OPCODE_OP_BOTTOM3 { 0x1: sqrtsd_Vq_Wq(); default: Inst::UD2(); } default: Inst::UD2(); } 0x0B: decode LEGACY_DECODEVAL { // no prefix 0x0: decode OPCODE_OP_BOTTOM3 { 0x0: addps_Vo_Wo(); 0x1: mulps_Vo_Wo(); 0x2: cvtps2pd_Vo_Wq(); 0x3: cvtdq2ps_Vo_Wo(); 0x4: subps_Vo_Wo(); 0x5: minps_Vo_Wo(); 0x6: divps_Vo_Wo(); 0x7: maxps_Vo_Wo(); } // repe (0xF3) 0x4: decode OPCODE_OP_BOTTOM3 { 0x0: addss_Vd_Wd(); 0x1: mulss_Vd_Wd(); 0x2: cvtss2sd_Vq_Wd(); 0x3: cvttps2dq_Vo_Wo(); 0x4: subss_Vd_Wd(); 0x5: minss_Vd_Wd(); 0x6: divss_Vd_Wd(); 0x7: maxss_Vd_Wd(); } // operand size (0x66) 0x1: decode OPCODE_OP_BOTTOM3 { 0x0: addpd_Vo_Wo(); 0x1: mulpd_Vo_Wo(); 0x2: cvtpd2ps_Vo_Wo(); 0x3: cvtps2dq_Vo_Wo(); 0x4: subpd_Vo_Wo(); 0x5: minpd_Vo_Wo(); 0x6: divpd_Vo_Wo(); 0x7: maxpd_Vo_Wo(); } // repne (0xF2) 0x8: decode OPCODE_OP_BOTTOM3 { 0x0: addsd_Vq_Wq(); 0x1: mulsd_Vq_Wq(); 0x2: cvtsd2ss_Vd_Wq(); 0x4: subsd_Vq_Wq(); 0x5: minsd_Vq_Wq(); 0x6: divsd_Vq_Wq(); 0x7: maxsd_Vq_Wq(); default: Inst::UD2(); } default: Inst::UD2(); } 0x0C: decode LEGACY_DECODEVAL { // no prefix 0x0: decode OPCODE_OP_BOTTOM3 { 0x0: punpcklbw_Pq_Qd(); 0x1: punpcklwd_Pq_Qd(); 0x2: punpckldq_Pq_Qd(); 0x3: packsswb_Pq_Qq(); 0x4: pcmpgtb_Pq_Qq(); 0x5: pcmpgtw_Pq_Qq(); 0x6: pcmpgtd_Pq_Qq(); 0x7: packuswb_Pq_Qq(); } // operand size (0x66) 0x1: decode OPCODE_OP_BOTTOM3 { 0x0: punpcklbw_Vo_Wq(); 0x1: punpcklwd_Vo_Wq(); 0x2: punpckldq_Vo_Wq(); 0x3: packsswb_Vo_Wo(); 0x4: pcmpgtb_Vo_Wo(); 0x5: pcmpgtw_Vo_Wo(); 0x6: pcmpgtd_Vo_Wo(); 0x7: packuswb_Vo_Wo(); } default: Inst::UD2(); } 0x0D: decode LEGACY_DECODEVAL { // no prefix 0x0: decode OPCODE_OP_BOTTOM3 { 0x0: punpckhbw_Pq_Qq(); 0x1: punpckhwd_Pq_Qq(); 0x2: punpckhdq_Pq_Qq(); 0x3: packssdw_Pq_Qq(); 0x6: movd_Pq_Ed(); 0x7: movq_Pq_Qq(); default: Inst::UD2(); } // repe (0xF3) 0x4: decode OPCODE_OP_BOTTOM3 { 0x7: movdqu_Vo_Wo(); default: Inst::UD2(); } // operand size (0x66) 0x1: decode OPCODE_OP_BOTTOM3 { 0x0: punpckhbw_Vo_Wo(); 0x1: punpckhwd_Vo_Wo(); 0x2: punpckhdq_Vo_Wo(); 0x3: packssdw_Vo_Wo(); 0x4: punpcklqdq_Vo_Wq(); 0x5: punpcklqdq_Vo_Wq(); 0x6: movd_Vo_Ed(); 0x7: movdqa_Vo_Wo(); } default: Inst::UD2(); } 0x0E: decode LEGACY_DECODEVAL { // no prefix 0x0: decode OPCODE_OP_BOTTOM3 { 0x0: pshufw_Pq_Qq_Ib(); 0x1: group13_pshimw(); 0x2: group14_pshimd(); 0x3: group15_pshimq(); 0x4: pcmpeqb_Pq_Qq(); 0x5: pcmpeqw_Pq_Qq(); 0x6: pcmpeqd_Pq_Qq(); 0x7: emms(); } // repe (0xF3) 0x4: decode OPCODE_OP_BOTTOM3 { 0x0: pshufhw_Vo_Wo_Ib(); default: Inst::UD2(); } // operand size (0x66) 0x1: decode OPCODE_OP_BOTTOM3 { 0x0: pshufd_Vo_Wo_Ib(); 0x1: group13_pshimw(); 0x2: group14_pshimd(); 0x3: group15_pshimq_dq(); 0x4: pcmpeqb_Vo_Wo(); 0x5: pcmpeqw_Vo_Wo(); 0x6: pcmpeqd_Vo_Wo(); default: Inst::UD2(); } // repne (0xF2) 0x8: decode OPCODE_OP_BOTTOM3 { 0x0: pshuflw_Vo_Wo_Ib(); default: Inst::UD2(); } default: Inst::UD2(); } 0x0F: decode LEGACY_DECODEVAL { // no prefix 0x0: decode OPCODE_OP_BOTTOM3 { 0x0: vmread_Ed_or_Eq_Gd_or_Gq(); 0x1: vmwrite_Gd_or_Gq_Ed_or_Eq(); 0x6: mov_Ed_Pd(); 0x7: mov_Qq_Pq(); default: Inst::UD2(); } // repe (0xF3) 0x4: decode OPCODE_OP_BOTTOM3 { 0x6: movq_Vo_Mq_or_Vq_Vq(); 0x7: movdqu_Wo_Vo(); default: Inst::UD2(); } // operand size (0x66) 0x1: decode OPCODE_OP_BOTTOM3 { 0x4: haddpd_Vo_Wo(); 0x5: hsubpd_Vo_Wo(); 0x6: movd_Ed_Vd(); 0x7: movdqa_Wo_Vo(); default: Inst::UD2(); } // repne (0xF2) 0x8: decode OPCODE_OP_BOTTOM3 { 0x4: haddps_Vo_Wo(); 0x5: hsubps_Vo_Wo(); default: Inst::UD2(); } default: Inst::UD2(); } format Inst { 0x10: decode OPCODE_OP_BOTTOM3 { 0x0: JO(Jz); 0x1: JNO(Jz); 0x2: JB(Jz); 0x3: JNB(Jz); 0x4: JZ(Jz); 0x5: JNZ(Jz); 0x6: JBE(Jz); 0x7: JNBE(Jz); } 0x11: decode OPCODE_OP_BOTTOM3 { 0x0: JS(Jz); 0x1: JNS(Jz); 0x2: JP(Jz); 0x3: JNP(Jz); 0x4: JL(Jz); 0x5: JNL(Jz); 0x6: JLE(Jz); 0x7: JNLE(Jz); } 0x12: decode OPCODE_OP_BOTTOM3 { 0x0: SETO(Eb); 0x1: SETNO(Eb); 0x2: SETB(Eb); 0x3: SETNB(Eb); 0x4: SETZ(Eb); 0x5: SETNZ(Eb); 0x6: SETBE(Eb); 0x7: SETNBE(Eb); } 0x13: decode OPCODE_OP_BOTTOM3 { 0x0: SETS(Eb); 0x1: SETNS(Eb); 0x2: SETP(Eb); 0x3: SETNP(Eb); 0x4: SETL(Eb); 0x5: SETNL(Eb); 0x6: SETLE(Eb); 0x7: SETNLE(Eb); } } 0x14: decode OPCODE_OP_BOTTOM3 { 0x0: push_fs(); 0x1: pop_fs(); 0x2: Inst::CPUID(rAd); 0x3: bt_Ev_Gv(); 0x4: shld_Ev_Gv_Ib(); 0x5: shld_Ev_Gv_rCl(); 0x6: xbts_and_cmpxchg(); 0x7: ibts_and_cmpxchg(); } 0x15: decode OPCODE_OP_BOTTOM3 { 0x0: push_gs(); 0x1: pop_gs(); 0x2: rsm_smm(); 0x3: bts_Ev_Gv(); 0x4: shrd_Ev_Gv_Ib(); 0x5: shrd_Ev_Gv_rCl(); 0x6: group16(); 0x7: Inst::IMUL(Gv,Ev); } 0x16: decode OPCODE_OP_BOTTOM3 { 0x0: Inst::CMPXCHG(Eb,Gb); 0x1: Inst::CMPXCHG(Ev,Gv); 0x2: lss_Gz_Mp(); 0x3: btr_Ev_Gv(); 0x4: lfs_Gz_Mp(); 0x5: lgs_Gz_Mp(); //The size of the second operand in these instructions should //really be "b" or "w", but it's set to v in order to have a //consistent register size. This shouldn't affect behavior. 0x6: Inst::MOVZX_B(Gv,Ev); 0x7: Inst::MOVZX_W(Gv,Ev); } 0x17: decode OPCODE_OP_BOTTOM3 { 0x0: jmpe_Jz(); // IA-64? 0x1: group11_UD2(); 0x2: group8_Ev_Ib(); 0x3: btc_Ev_Gv(); 0x4: bsf_Gv_Ev(); 0x5: bsr_Gv_Ev(); //The size of the second operand in these instructions should //really be "b" or "w", but it's set to v in order to have a //consistent register size. This shouldn't affect behavior. 0x6: Inst::MOVSX_B(Gv,Ev); 0x7: Inst::MOVSX_W(Gv,Ev); } 0x18: decode OPCODE_OP_BOTTOM3 { 0x0: xadd_Eb_Gb(); 0x1: xadd_Ev_Gv(); 0x7: group9(); default: decode LEGACY_DECODEVAL { // no prefix 0x0: decode OPCODE_OP_BOTTOM3 { 0x2: cmpccps_Vo_Wo_Ib(); 0x3: cvtdq2ps_Vo_Wo(); 0x4: subps_Vo_Wo(); 0x5: minps_Vo_Wo(); 0x6: divps_Vo_Wo(); } // repe (0xF3) 0x4: decode OPCODE_OP_BOTTOM3 { 0x2: cmpccss_Vd_Wd_Ib(); default: Inst::UD2(); } // operand size (0x66) 0x1: decode OPCODE_OP_BOTTOM3 { 0x2: cmpccpd_Vo_Wo_Ib(); 0x4: subpd_Vo_Wo(); 0x5: minpd_Vo_Wo(); 0x6: divpd_Vo_Wo(); default: Inst::UD2(); } // repne (0xF2) 0x8: decode OPCODE_OP_BOTTOM3 { 0x2: cmpccsd_Vq_Wq_Ib(); default: Inst::UD2(); } default: Inst::UD2(); } } 0x19: bswap_B(); 0x1A: decode LEGACY_DECODEVAL { // no prefix 0x0: decode OPCODE_OP_BOTTOM3 { 0x1: psrlw_Pq_Qq(); 0x2: psrld_Pq_Qq(); 0x3: psrlq_Pq_Qq(); 0x4: paddq_Pq_Qq(); 0x5: pmullw_Pq_Qq(); 0x7: pmovmskb_Gd_PRq(); default: Inst::UD2(); } // repe (0xF3) 0x4: decode OPCODE_OP_BOTTOM3 { 0x6: movq2dq_Vo_PRq(); default: Inst::UD2(); } // operand size (0x66) 0x1: decode OPCODE_OP_BOTTOM3 { 0x0: addsubpd_Vo_Wo(); 0x1: psrlw_Vo_Wo(); 0x2: psrld_Vo_Wo(); 0x3: psrlq_Vo_Wo(); 0x4: paddq_Vo_Wo(); 0x5: pmullw_Vo_Wo(); 0x6: decode MODRM_MOD { 0x3: movq_Vq_Vq(); default: movq_Mq_Vq(); } 0x7: pmovmskb_Gd_VRo(); } // repne (0xF2) 0x8: decode OPCODE_OP_BOTTOM3 { 0x0: addsubps_Vo_Wo(); 0x6: movdq2q_Pq_VRq(); default: Inst::UD2(); } default: Inst::UD2(); } 0x1B: decode LEGACY_DECODEVAL { // no prefix 0x0: decode OPCODE_OP_BOTTOM3 { 0x0: psubusb_Pq_Qq(); 0x1: psubusw_Pq_Qq(); 0x2: pminub_Pq_Qq(); 0x3: pand_Pq_Qq(); 0x4: paddusb_Pq_Qq(); 0x5: paddusw_Pq_Qq(); 0x6: pmaxub_Pq_Qq(); 0x7: pandn_Pq_Qq(); } // operand size (0x66) 0x1: decode OPCODE_OP_BOTTOM3 { 0x0: psubusb_Vo_Wo(); 0x1: psubusw_Vo_Wo(); 0x2: pminub_Vo_Wo(); 0x3: pand_Vo_Wo(); 0x4: paddusb_Vo_Wo(); 0x5: paddusw_Vo_Wo(); 0x6: pmaxub_Vo_Wo(); 0x7: pandn_Vo_Wo(); } default: Inst::UD2(); } 0x1C: decode OPCODE_OP_BOTTOM3 { 0x0: holder(); 0x1: holder(); 0x2: holder(); 0x3: holder(); 0x4: holder(); 0x5: holder(); 0x6: holder(); 0x7: holder(); } 0x1D: decode LEGACY_DECODEVAL { // no prefix 0x0: decode OPCODE_OP_BOTTOM3 { 0x0: psubsb_Pq_Qq(); 0x1: psubsw_Pq_Qq(); 0x2: pminsw_Pq_Qq(); 0x3: por_Pq_Qq(); 0x4: paddsb_Pq_Qq(); 0x5: paddsw_Pq_Qq(); 0x6: pmaxsw_Pq_Qq(); 0x7: pxor_Pq_Qq(); } // operand size (0x66) 0x1: decode OPCODE_OP_BOTTOM3 { 0x0: psubsb_Vo_Wo(); 0x1: psubsw_Vo_Wo(); 0x2: pminsw_Vo_Wo(); 0x3: por_Vo_Wo(); 0x4: paddsb_Vo_Wo(); 0x5: paddsw_Vo_Wo(); 0x6: pmaxsw_Vo_Wo(); 0x7: pxor_Vo_Wo(); } default: Inst::UD2(); } 0x1E: decode OPCODE_OP_BOTTOM3 { 0x0: holder(); 0x1: holder(); 0x2: holder(); 0x3: holder(); 0x4: holder(); 0x5: holder(); 0x6: holder(); 0x7: holder(); } 0x1F: decode LEGACY_DECODEVAL { // no prefix 0x0: decode OPCODE_OP_BOTTOM3 { 0x0: psubb_Pq_Qq(); 0x1: psubw_Pq_Qq(); 0x2: psubd_Pq_Qq(); 0x3: psubq_Pq_Qq(); 0x4: paddb_Pq_Qq(); 0x5: paddw_Pq_Qq(); 0x6: paddd_Pq_Qq(); 0x7: Inst::UD2(); } // operand size (0x66) 0x1: decode OPCODE_OP_BOTTOM3 { 0x0: psubb_Vo_Wo(); 0x1: psubw_Vo_Wo(); 0x2: psubd_Vo_Wo(); 0x3: psubq_Vo_Wo(); 0x4: paddb_Vo_Wo(); 0x5: paddw_Vo_Wo(); 0x6: paddd_Vo_Wo(); 0x7: Inst::UD2(); } default: Inst::UD2(); } default: FailUnimpl::twoByteOps(); } } default: M5InternalError::error( {{"Unexpected first opcode byte in two byte opcode!"}}); }