// 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)'); #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: This_should_be_an_illegal_instruction(); 0x3: UD1(); 0x4: This_should_be_an_illegal_instruction(); 0x5: threednow(); 0x6: threednow(); 0x7: threednow(); } 0x02: decode OPCODE_OP_BOTTOM3 { 0x0: holder(); 0x1: holder(); 0x2: holder(); 0x3: holder(); 0x4: holder(); 0x5: holder(); 0x6: holder(); 0x7: holder(); } 0x03: decode OPCODE_OP_BOTTOM3 { 0x0: group17(); 0x1: group17(); 0x2: group17(); 0x3: group17(); 0x4: group17(); 0x5: group17(); 0x6: group17(); 0x7: group17(); } 0x04: decode OPCODE_OP_BOTTOM3 { 0x0: holder(); 0x1: holder(); 0x2: holder(); 0x3: holder(); 0x4: holder(); 0x5: holder(); 0x6: holder(); 0x7: holder(); } 0x05: decode OPCODE_OP_BOTTOM3 { 0x0: holder(); 0x1: holder(); 0x2: holder(); 0x3: holder(); 0x4: holder(); 0x5: holder(); 0x6: holder(); 0x7: holder(); } 0x06: decode OPCODE_OP_BOTTOM3 { 0x0: wrmsr(); 0x1: rdtsc(); 0x2: rdmsr(); 0x3: rdpmc(); 0x4: sysenter(); 0x5: sysexit(); 0x6: This_should_be_an_illegal_instruction(); 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(); } 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 OPCODE_OP_BOTTOM3 { 0x0: holder(); 0x1: holder(); 0x2: holder(); 0x3: holder(); 0x4: holder(); 0x5: holder(); 0x6: holder(); 0x7: holder(); } 0x0B: decode OPCODE_OP_BOTTOM3 { 0x0: holder(); 0x1: holder(); 0x2: holder(); 0x3: holder(); 0x4: holder(); 0x5: holder(); 0x6: holder(); 0x7: holder(); } 0x0C: decode OPCODE_OP_BOTTOM3 { 0x0: holder(); 0x1: holder(); 0x2: holder(); 0x3: holder(); 0x4: holder(); 0x5: holder(); 0x6: holder(); 0x7: holder(); } 0x0D: decode OPCODE_OP_BOTTOM3 { 0x0: holder(); 0x1: holder(); 0x2: holder(); 0x3: holder(); 0x4: holder(); 0x5: holder(); 0x6: holder(); 0x7: holder(); } 0x0E: decode OPCODE_OP_BOTTOM3 { 0x0: holder(); 0x1: holder(); 0x2: holder(); 0x3: holder(); 0x4: holder(); 0x5: holder(); 0x6: holder(); 0x7: holder(); } 0x0F: decode OPCODE_OP_BOTTOM3 { 0x0: holder(); 0x1: holder(); 0x2: holder(); 0x3: holder(); 0x4: holder(); 0x5: holder(); 0x6: holder(); 0x7: holder(); } 0x10: decode OPCODE_OP_BOTTOM3 { 0x0: jo_Jz(); 0x1: jno_Jz(); 0x2: jb_Jz(); 0x3: Inst::JNB(Jz); 0x4: Inst::JZ(Jz); 0x5: Inst::JNZ(Jz); 0x6: Inst::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: cpuid(); 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: imul_Gv_Ev(); } 0x16: decode OPCODE_OP_BOTTOM3 { 0x0: cmpxchg_Eb_Gb(); 0x1: cmpxchg_Ev_Gv(); 0x2: lss_Gz_Mp(); 0x3: btr_Ev_Gv(); 0x4: lfs_Gz_Mp(); 0x5: lgs_Gz_Mp(); 0x6: Inst::MOVZX_B(Gv,Eb); 0x7: Inst::MOVZX_W(Gv,Ew); } 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(); 0x6: movsx_Gv_Eb(); 0x7: movsx_Gv_Ew(); } 0x18: decode OPCODE_OP_BOTTOM3 { 0x0: holder(); 0x1: holder(); 0x2: holder(); 0x3: holder(); 0x4: holder(); 0x5: holder(); 0x6: holder(); 0x7: holder(); } 0x19: decode OPCODE_OP_BOTTOM3 { 0x0: bswap_rAx(); 0x1: bswap_rCx(); 0x2: bswap_rDx(); 0x3: bswap_rBx(); 0x4: bswap_rSP(); 0x5: bswap_rBP(); 0x6: bswap_rSI(); 0x7: bswap_rDI(); } 0x1A: decode OPCODE_OP_BOTTOM3 { 0x0: holder(); 0x1: holder(); 0x2: holder(); 0x3: holder(); 0x4: holder(); 0x5: holder(); 0x6: holder(); 0x7: holder(); } 0x1B: decode OPCODE_OP_BOTTOM3 { 0x0: holder(); 0x1: holder(); 0x2: holder(); 0x3: holder(); 0x4: holder(); 0x5: holder(); 0x6: holder(); 0x7: holder(); } 0x1C: decode OPCODE_OP_BOTTOM3 { 0x0: holder(); 0x1: holder(); 0x2: holder(); 0x3: holder(); 0x4: holder(); 0x5: holder(); 0x6: holder(); 0x7: holder(); } 0x1D: decode OPCODE_OP_BOTTOM3 { 0x0: holder(); 0x1: holder(); 0x2: holder(); 0x3: holder(); 0x4: holder(); 0x5: holder(); 0x6: holder(); 0x7: holder(); } 0x1E: decode OPCODE_OP_BOTTOM3 { 0x0: holder(); 0x1: holder(); 0x2: holder(); 0x3: holder(); 0x4: holder(); 0x5: holder(); 0x6: holder(); 0x7: holder(); } 0x1F: decode OPCODE_OP_BOTTOM3 { 0x0: holder(); 0x1: holder(); 0x2: holder(); 0x3: holder(); 0x4: holder(); 0x5: holder(); 0x6: holder(); 0x7: holder(); } default: FailUnimpl::twoByteOps(); } } default: M5InternalError::error( {{"Unexpected first opcode byte in two byte opcode!"}}); }