static_inst.hh revision 6345
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_STATICINST_HH__ 59#define __ARCH_X86_INSTS_STATICINST_HH__ 60 61#include "base/trace.hh" 62#include "cpu/static_inst.hh" 63 64namespace X86ISA 65{ 66 /** 67 * Class for register indices passed to instruction constructors. Using a 68 * wrapper struct for these lets take advantage of the compiler's type 69 * checking. 70 */ 71 struct InstRegIndex 72 { 73 RegIndex idx; 74 explicit InstRegIndex(RegIndex _idx) : idx(_idx) 75 {} 76 }; 77 78 /** 79 * Base class for all X86 static instructions. 80 */ 81 82 class X86StaticInst : public StaticInst 83 { 84 protected: 85 // Constructor. 86 X86StaticInst(const char *mnem, 87 ExtMachInst _machInst, OpClass __opClass) 88 : StaticInst(mnem, _machInst, __opClass) 89 { 90 } 91 92 std::string generateDisassembly(Addr pc, 93 const SymbolTable *symtab) const; 94 95 void printMnemonic(std::ostream &os, const char * mnemonic) const; 96 void printMnemonic(std::ostream &os, const char * instMnemonic, 97 const char * mnemonic) const; 98 99 void printSegment(std::ostream &os, int segment) const; 100 101 void printReg(std::ostream &os, int reg, int size) const; 102 void printSrcReg(std::ostream &os, int reg, int size) const; 103 void printDestReg(std::ostream &os, int reg, int size) const; 104 void printMem(std::ostream &os, uint8_t segment, 105 uint8_t scale, RegIndex index, RegIndex base, 106 uint64_t disp, uint8_t addressSize, bool rip) const; 107 108 inline uint64_t merge(uint64_t into, uint64_t val, int size) const 109 { 110 X86IntReg reg = into; 111 if(_destRegIdx[0] & (1 << 6)) 112 { 113 reg.H = val; 114 return reg; 115 } 116 switch(size) 117 { 118 case 1: 119 reg.L = val; 120 break; 121 case 2: 122 reg.X = val; 123 break; 124 case 4: 125 //XXX Check if this should be zeroed or sign extended 126 reg = 0; 127 reg.E = val; 128 break; 129 case 8: 130 reg.R = val; 131 break; 132 default: 133 panic("Tried to merge with unrecognized size %d.\n", size); 134 } 135 return reg; 136 } 137 138 inline uint64_t pick(uint64_t from, int idx, int size) const 139 { 140 X86IntReg reg = from; 141 DPRINTF(X86, "Picking with size %d\n", size); 142 if(_srcRegIdx[idx] & (1 << 6)) 143 return reg.H; 144 switch(size) 145 { 146 case 1: 147 return reg.L; 148 case 2: 149 return reg.X; 150 case 4: 151 return reg.E; 152 case 8: 153 return reg.R; 154 default: 155 panic("Tried to pick with unrecognized size %d.\n", size); 156 } 157 } 158 159 inline int64_t signedPick(uint64_t from, int idx, int size) const 160 { 161 X86IntReg reg = from; 162 DPRINTF(X86, "Picking with size %d\n", size); 163 if(_srcRegIdx[idx] & (1 << 6)) 164 return reg.SH; 165 switch(size) 166 { 167 case 1: 168 return reg.SL; 169 case 2: 170 return reg.SX; 171 case 4: 172 return reg.SE; 173 case 8: 174 return reg.SR; 175 default: 176 panic("Tried to pick with unrecognized size %d.\n", size); 177 } 178 } 179 }; 180} 181 182#endif //__ARCH_X86_INSTS_STATICINST_HH__ 183