microregop.hh revision 7087
1/* 2 * Copyright (c) 2007 The Hewlett-Packard Development Company 3 * All rights reserved. 4 * 5 * The license below extends only to copyright in the software and shall 6 * not be construed as granting a license to any other intellectual 7 * property including but not limited to intellectual property relating 8 * to a hardware implementation of the functionality of the software 9 * licensed hereunder. You may use the software subject to the license 10 * terms below provided that you ensure that this notice is replicated 11 * unmodified and in its entirety in all distributions of the software, 12 * modified or unmodified, in source code or in binary form. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions are 16 * met: redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer; 18 * redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution; 21 * neither the name of the copyright holders nor the names of its 22 * contributors may be used to endorse or promote products derived from 23 * this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 29 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 36 * 37 * Authors: Gabe Black 38 */ 39 40#ifndef __ARCH_X86_INSTS_MICROREGOP_HH__ 41#define __ARCH_X86_INSTS_MICROREGOP_HH__ 42 43#include "arch/x86/insts/microop.hh" 44 45namespace X86ISA 46{ 47 /** 48 * Base classes for RegOps which provides a generateDisassembly method. 49 */ 50 class RegOpBase : public X86MicroopBase 51 { 52 protected: 53 const RegIndex src1; 54 const RegIndex dest; 55 const uint8_t dataSize; 56 const uint16_t ext; 57 RegIndex foldOBit; 58 59 // Constructor 60 RegOpBase(ExtMachInst _machInst, 61 const char *mnem, const char *_instMnem, 62 bool isMicro, bool isDelayed, 63 bool isFirst, bool isLast, 64 InstRegIndex _src1, InstRegIndex _dest, 65 uint8_t _dataSize, uint16_t _ext, 66 OpClass __opClass) : 67 X86MicroopBase(_machInst, mnem, _instMnem, 68 isMicro, isDelayed, isFirst, isLast, 69 __opClass), 70 src1(_src1.idx), dest(_dest.idx), 71 dataSize(_dataSize), ext(_ext) 72 { 73 foldOBit = (dataSize == 1 && !_machInst.rex.present) ? 1 << 6 : 0; 74 } 75 76 //Figure out what the condition code flags should be. 77 uint64_t genFlags(uint64_t oldFlags, uint64_t flagMask, 78 uint64_t _dest, uint64_t _src1, uint64_t _src2, 79 bool subtract = false) const; 80 }; 81 82 class RegOp : public RegOpBase 83 { 84 protected: 85 const RegIndex src2; 86 87 // Constructor 88 RegOp(ExtMachInst _machInst, 89 const char *mnem, const char *_instMnem, 90 bool isMicro, bool isDelayed, 91 bool isFirst, bool isLast, 92 InstRegIndex _src1, InstRegIndex _src2, InstRegIndex _dest, 93 uint8_t _dataSize, uint16_t _ext, 94 OpClass __opClass) : 95 RegOpBase(_machInst, mnem, _instMnem, 96 isMicro, isDelayed, isFirst, isLast, 97 _src1, _dest, _dataSize, _ext, 98 __opClass), 99 src2(_src2.idx) 100 { 101 } 102 103 std::string generateDisassembly(Addr pc, 104 const SymbolTable *symtab) const; 105 }; 106 107 class RegOpImm : public RegOpBase 108 { 109 protected: 110 const uint8_t imm8; 111 112 // Constructor 113 RegOpImm(ExtMachInst _machInst, 114 const char * mnem, const char *_instMnem, 115 bool isMicro, bool isDelayed, 116 bool isFirst, bool isLast, 117 InstRegIndex _src1, uint8_t _imm8, InstRegIndex _dest, 118 uint8_t _dataSize, uint16_t _ext, 119 OpClass __opClass) : 120 RegOpBase(_machInst, mnem, _instMnem, 121 isMicro, isDelayed, isFirst, isLast, 122 _src1, _dest, _dataSize, _ext, 123 __opClass), 124 imm8(_imm8) 125 { 126 } 127 128 std::string generateDisassembly(Addr pc, 129 const SymbolTable *symtab) const; 130 }; 131} 132 133#endif //__ARCH_X86_INSTS_MICROREGOP_HH__ 134