microldstop.hh revision 4767:5e55d650692e
1/* 2 * Copyright (c) 2007 The Hewlett-Packard Development Company 3 * All rights reserved. 4 * 5 * Redistribution and use of this software in source and binary forms, 6 * with or without modification, are permitted provided that the 7 * following conditions are met: 8 * 9 * The software must be used only for Non-Commercial Use which means any 10 * use which is NOT directed to receiving any direct monetary 11 * compensation for, or commercial advantage from such use. Illustrative 12 * examples of non-commercial use are academic research, personal study, 13 * teaching, education and corporate research & development. 14 * Illustrative examples of commercial use are distributing products for 15 * commercial advantage and providing services using the software for 16 * commercial advantage. 17 * 18 * If you wish to use this software or functionality therein that may be 19 * covered by patents for commercial use, please contact: 20 * Director of Intellectual Property Licensing 21 * Office of Strategy and Technology 22 * Hewlett-Packard Company 23 * 1501 Page Mill Road 24 * Palo Alto, California 94304 25 * 26 * Redistributions of source code must retain the above copyright notice, 27 * this list of conditions and the following disclaimer. Redistributions 28 * in binary form must reproduce the above copyright notice, this list of 29 * conditions and the following disclaimer in the documentation and/or 30 * other materials provided with the distribution. Neither the name of 31 * the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its 32 * contributors may be used to endorse or promote products derived from 33 * this software without specific prior written permission. No right of 34 * sublicense is granted herewith. Derivatives of the software and 35 * output created using the software may be prepared, but only for 36 * Non-Commercial Uses. Derivatives of the software may be shared with 37 * others provided: (i) the others agree to abide by the list of 38 * conditions herein which includes the Non-Commercial Use restrictions; 39 * and (ii) such Derivatives of the software include the above copyright 40 * notice to acknowledge the contribution from this software where 41 * applicable, this list of conditions and the disclaimer below. 42 * 43 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 44 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 45 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 46 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 47 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 48 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 49 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 50 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 51 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 52 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 53 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 54 * 55 * Authors: Gabe Black 56 */ 57 58#ifndef __ARCH_X86_INSTS_MICROLDSTOP_HH__ 59#define __ARCH_X86_INSTS_MICROLDSTOP_HH__ 60 61#include "arch/x86/insts/microop.hh" 62 63namespace X86ISA 64{ 65 /** 66 * Base class for load and store ops 67 */ 68 class LdStOp : public X86MicroopBase 69 { 70 protected: 71 const uint8_t scale; 72 const RegIndex index; 73 const RegIndex base; 74 const uint64_t disp; 75 const uint8_t segment; 76 const RegIndex data; 77 const uint8_t dataSize; 78 const uint8_t addressSize; 79 80 //Constructor 81 LdStOp(ExtMachInst _machInst, 82 const char * mnem, const char * _instMnem, 83 bool isMicro, bool isDelayed, bool isFirst, bool isLast, 84 uint8_t _scale, RegIndex _index, RegIndex _base, 85 uint64_t _disp, uint8_t _segment, 86 RegIndex _data, 87 uint8_t _dataSize, uint8_t _addressSize, 88 OpClass __opClass) : 89 X86MicroopBase(machInst, mnem, _instMnem, 90 isMicro, isDelayed, isFirst, isLast, __opClass), 91 scale(_scale), index(_index), base(_base), 92 disp(_disp), segment(_segment), 93 data(_data), 94 dataSize(_dataSize), addressSize(_addressSize) 95 {} 96 97 std::string generateDisassembly(Addr pc, 98 const SymbolTable *symtab) const; 99 100 template<class Context, class MemType> 101 Fault read(Context *xc, Addr EA, MemType & Mem, unsigned flags) const 102 { 103 Fault fault = NoFault; 104 int size = dataSize; 105 Addr alignedEA = EA & ~(dataSize - 1); 106 if (EA != alignedEA) 107 size *= 2; 108 switch(size) 109 { 110 case 1: 111 fault = xc->read(alignedEA, (uint8_t&)Mem, flags); 112 break; 113 case 2: 114 fault = xc->read(alignedEA, (uint16_t&)Mem, flags); 115 break; 116 case 4: 117 fault = xc->read(alignedEA, (uint32_t&)Mem, flags); 118 break; 119 case 8: 120 fault = xc->read(alignedEA, (uint64_t&)Mem, flags); 121 break; 122 default: 123 panic("Bad operand size %d!\n", size); 124 } 125 return fault; 126 } 127 128 template<class Context, class MemType> 129 Fault write(Context *xc, MemType & Mem, Addr EA, unsigned flags) const 130 { 131 Fault fault = NoFault; 132 int size = dataSize; 133 Addr alignedEA = EA & ~(dataSize - 1); 134 if (EA != alignedEA) 135 size *= 2; 136 switch(size) 137 { 138 case 1: 139 fault = xc->write((uint8_t&)Mem, alignedEA, flags, 0); 140 break; 141 case 2: 142 fault = xc->write((uint16_t&)Mem, alignedEA, flags, 0); 143 break; 144 case 4: 145 fault = xc->write((uint32_t&)Mem, alignedEA, flags, 0); 146 break; 147 case 8: 148 fault = xc->write((uint64_t&)Mem, alignedEA, flags, 0); 149 break; 150 default: 151 panic("Bad operand size %d!\n", size); 152 } 153 return fault; 154 } 155 }; 156} 157 158#endif //__ARCH_X86_INSTS_MICROLDSTOP_HH__ 159