// Copyright (c) 2007-2008 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. 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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 opcodes with the lock prefix. Opcodes which shouldn't have that // prefix should effectively decode to UD2. // // All the memory references in these instructions happen through modrm bytes. // We therefore only need to make sure the modrm byte encodes a memory // reference to make sure these are the memory forms of these instructions. 0x1: decode MODRM_MOD { format Inst { 0x3: UD2(); default: decode OPCODE_NUM { 0x1: decode OPCODE_OP_TOP5 { 0x00: decode OPCODE_OP_BOTTOM3 { default: MultiInst::ADD_LOCKED(OPCODE_OP_BOTTOM3, [Mb,Gb], [Mv,Gv]); } 0x01: decode OPCODE_OP_BOTTOM3 { default: MultiInst::OR_LOCKED(OPCODE_OP_BOTTOM3, [Mb,Gb], [Mv,Gv]); } 0x02: decode OPCODE_OP_BOTTOM3 { default: MultiInst::ADC_LOCKED(OPCODE_OP_BOTTOM3, [Mb,Gb], [Mv,Gv]); } 0x03: decode OPCODE_OP_BOTTOM3 { default: MultiInst::SBB_LOCKED(OPCODE_OP_BOTTOM3, [Mb,Gb], [Mv,Gv]); } 0x04: decode OPCODE_OP_BOTTOM3 { default: MultiInst::AND_LOCKED(OPCODE_OP_BOTTOM3, [Mb,Gb], [Mv,Gv]); } 0x05: decode OPCODE_OP_BOTTOM3 { default: MultiInst::SUB_LOCKED(OPCODE_OP_BOTTOM3, [Mb,Gb], [Mv,Gv]); } 0x06: decode OPCODE_OP_BOTTOM3 { default: MultiInst::XOR_LOCKED(OPCODE_OP_BOTTOM3, [Mb,Gb], [Mv,Gv]); } 0x10: decode OPCODE_OP_BOTTOM3 { 0x0: decode MODRM_REG { 0x0: ADD_LOCKED(Mb,Ib); 0x1: OR_LOCKED(Mb,Ib); 0x2: ADC_LOCKED(Mb,Ib); 0x3: SBB_LOCKED(Mb,Ib); 0x4: AND_LOCKED(Mb,Ib); 0x5: SUB_LOCKED(Mb,Ib); 0x6: XOR_LOCKED(Mb,Ib); } 0x1: decode MODRM_REG { 0x0: ADD_LOCKED(Mv,Iz); 0x1: OR_LOCKED(Mv,Iz); 0x2: ADC_LOCKED(Mv,Iz); 0x3: SBB_LOCKED(Mv,Iz); 0x4: AND_LOCKED(Mv,Iz); 0x5: SUB_LOCKED(Mv,Iz); 0x6: XOR_LOCKED(Mv,Iz); } 0x2: decode MODE_SUBMODE { 0x0: UD2(); default: decode MODRM_REG { 0x0: ADD_LOCKED(Mb,Ib); 0x1: OR_LOCKED(Mb,Ib); 0x2: ADC_LOCKED(Mb,Ib); 0x3: SBB_LOCKED(Mb,Ib); 0x4: AND_LOCKED(Mb,Ib); 0x5: SUB_LOCKED(Mb,Ib); 0x6: XOR_LOCKED(Mb,Ib); } } //0x3: group1_Ev_Ib(); 0x3: decode MODRM_REG { 0x0: ADD_LOCKED(Mv,Ib); 0x1: OR_LOCKED(Mv,Ib); 0x2: ADC_LOCKED(Mv,Ib); 0x3: SBB_LOCKED(Mv,Ib); 0x4: AND_LOCKED(Mv,Ib); 0x5: SUB_LOCKED(Mv,Ib); 0x6: XOR_LOCKED(Mv,Ib); } 0x6: XCHG_LOCKED(Mb,Gb); 0x7: XCHG_LOCKED(Mv,Gv); } 0x1E: decode OPCODE_OP_BOTTOM3 { //0x6: group3_Eb(); 0x6: decode MODRM_REG { 0x2: NOT_LOCKED(Mb); 0x3: NEG_LOCKED(Mb); } //0x7: group3_Ev(); 0x7: decode MODRM_REG { 0x2: NOT_LOCKED(Mv); 0x3: NEG_LOCKED(Mv); } } 0x1F: decode OPCODE_OP_BOTTOM3 { 0x6: decode MODRM_REG { 0x0: INC_LOCKED(Mb); 0x1: DEC_LOCKED(Mb); default: UD2(); } //0x7: group5(); 0x7: decode MODRM_REG { 0x0: INC_LOCKED(Mv); 0x1: DEC_LOCKED(Mv); } } } 0x2: decode OPCODE_PREFIXA { 0x0F: decode OPCODE_OP_TOP5 { 0x15: decode OPCODE_OP_BOTTOM3 { 0x3: BTS_LOCKED(Mv,Gv); } 0x16: decode OPCODE_OP_BOTTOM3 { 0x0: CMPXCHG_LOCKED(Mb,Gb); 0x1: CMPXCHG_LOCKED(Mv,Gv); 0x3: BTR_LOCKED(Mv,Gv); } 0x17: decode OPCODE_OP_BOTTOM3 { 0x2: decode MODRM_REG { 0x5: BTS_LOCKED(Mv,Ib); 0x6: BTR_LOCKED(Mv,Ib); 0x7: BTC_LOCKED(Mv,Ib); } 0x3: BTC_LOCKED(Mv,Gv); } 0x18: decode OPCODE_OP_BOTTOM3 { 0x0: XADD_LOCKED(Mb,Gb); 0x1: XADD_LOCKED(Mv,Gv); //0x7: group9(); 0x7: decode MODRM_REG { 0x1: WarnUnimpl::cmpxchg_Mq_LOCKED(); } } } default: M5InternalError::error( {{"Unexpected first opcode byte in two byte opcode!"}}); } } } }