microldstop.hh revision 5727:8b9aaeac5bab
112884Sjason@lowepower.com/* 212884Sjason@lowepower.com * Copyright (c) 2007 The Hewlett-Packard Development Company 312884Sjason@lowepower.com * All rights reserved. 412884Sjason@lowepower.com * 512884Sjason@lowepower.com * Redistribution and use of this software in source and binary forms, 612884Sjason@lowepower.com * with or without modification, are permitted provided that the 712884Sjason@lowepower.com * following conditions are met: 812884Sjason@lowepower.com * 912884Sjason@lowepower.com * The software must be used only for Non-Commercial Use which means any 1012884Sjason@lowepower.com * 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#include "mem/packet.hh" 63 64namespace X86ISA 65{ 66 /** 67 * Base class for load and store ops 68 */ 69 class LdStOp : public X86MicroopBase 70 { 71 protected: 72 const uint8_t scale; 73 const RegIndex index; 74 const RegIndex base; 75 const uint64_t disp; 76 const uint8_t segment; 77 const RegIndex data; 78 const uint8_t dataSize; 79 const uint8_t addressSize; 80 RegIndex foldOBit, foldABit; 81 82 //Constructor 83 LdStOp(ExtMachInst _machInst, 84 const char * mnem, const char * _instMnem, 85 bool isMicro, bool isDelayed, bool isFirst, bool isLast, 86 uint8_t _scale, RegIndex _index, RegIndex _base, 87 uint64_t _disp, uint8_t _segment, 88 RegIndex _data, 89 uint8_t _dataSize, uint8_t _addressSize, 90 OpClass __opClass) : 91 X86MicroopBase(machInst, mnem, _instMnem, 92 isMicro, isDelayed, isFirst, isLast, __opClass), 93 scale(_scale), index(_index), base(_base), 94 disp(_disp), segment(_segment), 95 data(_data), 96 dataSize(_dataSize), addressSize(_addressSize) 97 { 98 foldOBit = (dataSize == 1 && !_machInst.rex.present) ? 1 << 6 : 0; 99 foldABit = 100 (addressSize == 1 && !_machInst.rex.present) ? 1 << 6 : 0; 101 } 102 103 std::string generateDisassembly(Addr pc, 104 const SymbolTable *symtab) const; 105 106 template<class Context, class MemType> 107 Fault read(Context *xc, Addr EA, MemType & Mem, unsigned flags) const 108 { 109 Fault fault = NoFault; 110 switch(dataSize) 111 { 112 case 1: 113 fault = xc->read(EA, (uint8_t&)Mem, flags); 114 break; 115 case 2: 116 fault = xc->read(EA, (uint16_t&)Mem, flags); 117 break; 118 case 4: 119 fault = xc->read(EA, (uint32_t&)Mem, flags); 120 break; 121 case 8: 122 fault = xc->read(EA, (uint64_t&)Mem, flags); 123 break; 124 default: 125 panic("Bad operand size %d for read at %#x.\n", dataSize, EA); 126 } 127 return fault; 128 } 129 130 template<class Context, class MemType> 131 Fault write(Context *xc, MemType & Mem, Addr EA, unsigned flags) const 132 { 133 Fault fault = NoFault; 134 switch(dataSize) 135 { 136 case 1: 137 fault = xc->write((uint8_t&)Mem, EA, flags, 0); 138 break; 139 case 2: 140 fault = xc->write((uint16_t&)Mem, EA, flags, 0); 141 break; 142 case 4: 143 fault = xc->write((uint32_t&)Mem, EA, flags, 0); 144 break; 145 case 8: 146 fault = xc->write((uint64_t&)Mem, EA, flags, 0); 147 break; 148 default: 149 panic("Bad operand size %d for write at %#x.\n", dataSize, EA); 150 } 151 return fault; 152 } 153 154 uint64_t 155 get(PacketPtr pkt) const 156 { 157 switch(dataSize) 158 { 159 case 1: 160 return pkt->get<uint8_t>(); 161 case 2: 162 return pkt->get<uint16_t>(); 163 case 4: 164 return pkt->get<uint32_t>(); 165 case 8: 166 return pkt->get<uint64_t>(); 167 default: 168 panic("Bad operand size %d for read at %#x.\n", 169 dataSize, pkt->getAddr()); 170 } 171 } 172 }; 173} 174 175#endif //__ARCH_X86_INSTS_MICROLDSTOP_HH__ 176