microregop.hh revision 7620
16019SN/A/* 26019SN/A * Copyright (c) 2007 The Hewlett-Packard Development Company 312763Sgiacomo.travaglini@arm.com * All rights reserved. 47102SN/A * 57102SN/A * The license below extends only to copyright in the software and shall 67102SN/A * not be construed as granting a license to any other intellectual 77102SN/A * property including but not limited to intellectual property relating 87102SN/A * to a hardware implementation of the functionality of the software 97102SN/A * licensed hereunder. You may use the software subject to the license 107102SN/A * terms below provided that you ensure that this notice is replicated 117102SN/A * unmodified and in its entirety in all distributions of the software, 127102SN/A * modified or unmodified, in source code or in binary form. 137102SN/A * 147102SN/A * Redistribution and use in source and binary forms, with or without 157102SN/A * modification, are permitted provided that the following conditions are 166019SN/A * met: redistributions of source code must retain the above copyright 176019SN/A * notice, this list of conditions and the following disclaimer; 186019SN/A * redistributions in binary form must reproduce the above copyright 196019SN/A * notice, this list of conditions and the following disclaimer in the 206019SN/A * documentation and/or other materials provided with the distribution; 216019SN/A * neither the name of the copyright holders nor the names of its 226019SN/A * contributors may be used to endorse or promote products derived from 236019SN/A * this software without specific prior written permission. 246019SN/A * 256019SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 266019SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 276019SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 286019SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 296019SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 306019SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 316019SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 326019SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 336019SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 346019SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 356019SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 366019SN/A * 376019SN/A * Authors: Gabe Black 386019SN/A */ 396019SN/A 406019SN/A#ifndef __ARCH_X86_INSTS_MICROREGOP_HH__ 417102SN/A#define __ARCH_X86_INSTS_MICROREGOP_HH__ 426019SN/A 4312763Sgiacomo.travaglini@arm.com#include "arch/x86/insts/microop.hh" 4412763Sgiacomo.travaglini@arm.com 4512763Sgiacomo.travaglini@arm.comnamespace X86ISA 4612763Sgiacomo.travaglini@arm.com{ 4712763Sgiacomo.travaglini@arm.com /** 4812763Sgiacomo.travaglini@arm.com * Base classes for RegOps which provides a generateDisassembly method. 4912763Sgiacomo.travaglini@arm.com */ 5012763Sgiacomo.travaglini@arm.com class RegOpBase : public X86MicroopBase 5112763Sgiacomo.travaglini@arm.com { 5210611SAndreas.Sandberg@ARM.com protected: 5312763Sgiacomo.travaglini@arm.com const RegIndex src1; 5410611SAndreas.Sandberg@ARM.com const RegIndex dest; 5510611SAndreas.Sandberg@ARM.com const uint8_t dataSize; 5610037SARM gem5 Developers const uint16_t ext; 57 RegIndex foldOBit; 58 59 // Constructor 60 RegOpBase(ExtMachInst _machInst, 61 const char *mnem, const char *_instMnem, uint64_t setFlags, 62 InstRegIndex _src1, InstRegIndex _dest, 63 uint8_t _dataSize, uint16_t _ext, 64 OpClass __opClass) : 65 X86MicroopBase(_machInst, mnem, _instMnem, setFlags, 66 __opClass), 67 src1(_src1.idx), dest(_dest.idx), 68 dataSize(_dataSize), ext(_ext) 69 { 70 foldOBit = (dataSize == 1 && !_machInst.rex.present) ? 1 << 6 : 0; 71 } 72 73 //Figure out what the condition code flags should be. 74 uint64_t genFlags(uint64_t oldFlags, uint64_t flagMask, 75 uint64_t _dest, uint64_t _src1, uint64_t _src2, 76 bool subtract = false) const; 77 }; 78 79 class RegOp : public RegOpBase 80 { 81 protected: 82 const RegIndex src2; 83 84 // Constructor 85 RegOp(ExtMachInst _machInst, 86 const char *mnem, const char *_instMnem, uint64_t setFlags, 87 InstRegIndex _src1, InstRegIndex _src2, InstRegIndex _dest, 88 uint8_t _dataSize, uint16_t _ext, 89 OpClass __opClass) : 90 RegOpBase(_machInst, mnem, _instMnem, setFlags, 91 _src1, _dest, _dataSize, _ext, 92 __opClass), 93 src2(_src2.idx) 94 { 95 } 96 97 std::string generateDisassembly(Addr pc, 98 const SymbolTable *symtab) const; 99 }; 100 101 class RegOpImm : public RegOpBase 102 { 103 protected: 104 const uint8_t imm8; 105 106 // Constructor 107 RegOpImm(ExtMachInst _machInst, 108 const char * mnem, const char *_instMnem, uint64_t setFlags, 109 InstRegIndex _src1, uint8_t _imm8, InstRegIndex _dest, 110 uint8_t _dataSize, uint16_t _ext, 111 OpClass __opClass) : 112 RegOpBase(_machInst, mnem, _instMnem, setFlags, 113 _src1, _dest, _dataSize, _ext, 114 __opClass), 115 imm8(_imm8) 116 { 117 } 118 119 std::string generateDisassembly(Addr pc, 120 const SymbolTable *symtab) const; 121 }; 122} 123 124#endif //__ARCH_X86_INSTS_MICROREGOP_HH__ 125