microldstop.hh revision 5912
14679Sgblack@eecs.umich.edu/* 24679Sgblack@eecs.umich.edu * Copyright (c) 2007 The Hewlett-Packard Development Company 34679Sgblack@eecs.umich.edu * All rights reserved. 44679Sgblack@eecs.umich.edu * 54679Sgblack@eecs.umich.edu * Redistribution and use of this software in source and binary forms, 64679Sgblack@eecs.umich.edu * with or without modification, are permitted provided that the 74679Sgblack@eecs.umich.edu * following conditions are met: 84679Sgblack@eecs.umich.edu * 94679Sgblack@eecs.umich.edu * The software must be used only for Non-Commercial Use which means any 104679Sgblack@eecs.umich.edu * use which is NOT directed to receiving any direct monetary 114679Sgblack@eecs.umich.edu * compensation for, or commercial advantage from such use. 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IN NO EVENT SHALL THE COPYRIGHT 474679Sgblack@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 484679Sgblack@eecs.umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 494679Sgblack@eecs.umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 504679Sgblack@eecs.umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 514679Sgblack@eecs.umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 524679Sgblack@eecs.umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 534679Sgblack@eecs.umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 544679Sgblack@eecs.umich.edu * 554679Sgblack@eecs.umich.edu * Authors: Gabe Black 564679Sgblack@eecs.umich.edu */ 574679Sgblack@eecs.umich.edu 584679Sgblack@eecs.umich.edu#ifndef __ARCH_X86_INSTS_MICROLDSTOP_HH__ 594679Sgblack@eecs.umich.edu#define __ARCH_X86_INSTS_MICROLDSTOP_HH__ 604679Sgblack@eecs.umich.edu 614679Sgblack@eecs.umich.edu#include "arch/x86/insts/microop.hh" 625727Sgblack@eecs.umich.edu#include "mem/packet.hh" 635912Sgblack@eecs.umich.edu#include "mem/request.hh" 644679Sgblack@eecs.umich.edu 654679Sgblack@eecs.umich.edunamespace X86ISA 664679Sgblack@eecs.umich.edu{ 675912Sgblack@eecs.umich.edu static const Request::FlagsType SegmentFlagMask = mask(4); 685912Sgblack@eecs.umich.edu static const int FlagShift = 4; 695912Sgblack@eecs.umich.edu enum FlagBit { 705912Sgblack@eecs.umich.edu CPL0FlagBit = 1 715912Sgblack@eecs.umich.edu }; 725912Sgblack@eecs.umich.edu 734679Sgblack@eecs.umich.edu /** 744679Sgblack@eecs.umich.edu * Base class for load and store ops 754679Sgblack@eecs.umich.edu */ 764679Sgblack@eecs.umich.edu class LdStOp : public X86MicroopBase 774679Sgblack@eecs.umich.edu { 784679Sgblack@eecs.umich.edu protected: 794679Sgblack@eecs.umich.edu const uint8_t scale; 804679Sgblack@eecs.umich.edu const RegIndex index; 814679Sgblack@eecs.umich.edu const RegIndex base; 824679Sgblack@eecs.umich.edu const uint64_t disp; 834679Sgblack@eecs.umich.edu const uint8_t segment; 844679Sgblack@eecs.umich.edu const RegIndex data; 854679Sgblack@eecs.umich.edu const uint8_t dataSize; 864679Sgblack@eecs.umich.edu const uint8_t addressSize; 875912Sgblack@eecs.umich.edu const Request::FlagsType memFlags; 884804Sgblack@eecs.umich.edu RegIndex foldOBit, foldABit; 894679Sgblack@eecs.umich.edu 904679Sgblack@eecs.umich.edu //Constructor 914679Sgblack@eecs.umich.edu LdStOp(ExtMachInst _machInst, 924679Sgblack@eecs.umich.edu const char * mnem, const char * _instMnem, 934679Sgblack@eecs.umich.edu bool isMicro, bool isDelayed, bool isFirst, bool isLast, 944679Sgblack@eecs.umich.edu uint8_t _scale, RegIndex _index, RegIndex _base, 954679Sgblack@eecs.umich.edu uint64_t _disp, uint8_t _segment, 964679Sgblack@eecs.umich.edu RegIndex _data, 974679Sgblack@eecs.umich.edu uint8_t _dataSize, uint8_t _addressSize, 985912Sgblack@eecs.umich.edu Request::FlagsType _memFlags, 994679Sgblack@eecs.umich.edu OpClass __opClass) : 1004679Sgblack@eecs.umich.edu X86MicroopBase(machInst, mnem, _instMnem, 1014679Sgblack@eecs.umich.edu isMicro, isDelayed, isFirst, isLast, __opClass), 1024679Sgblack@eecs.umich.edu scale(_scale), index(_index), base(_base), 1034679Sgblack@eecs.umich.edu disp(_disp), segment(_segment), 1044679Sgblack@eecs.umich.edu data(_data), 1055912Sgblack@eecs.umich.edu dataSize(_dataSize), addressSize(_addressSize), 1065912Sgblack@eecs.umich.edu memFlags(_memFlags | _segment) 1074804Sgblack@eecs.umich.edu { 1084804Sgblack@eecs.umich.edu foldOBit = (dataSize == 1 && !_machInst.rex.present) ? 1 << 6 : 0; 1094804Sgblack@eecs.umich.edu foldABit = 1104804Sgblack@eecs.umich.edu (addressSize == 1 && !_machInst.rex.present) ? 1 << 6 : 0; 1114804Sgblack@eecs.umich.edu } 1124679Sgblack@eecs.umich.edu 1134679Sgblack@eecs.umich.edu std::string generateDisassembly(Addr pc, 1144679Sgblack@eecs.umich.edu const SymbolTable *symtab) const; 1154767Sgblack@eecs.umich.edu 1164767Sgblack@eecs.umich.edu template<class Context, class MemType> 1174767Sgblack@eecs.umich.edu Fault read(Context *xc, Addr EA, MemType & Mem, unsigned flags) const 1184767Sgblack@eecs.umich.edu { 1194767Sgblack@eecs.umich.edu Fault fault = NoFault; 1205002Sgblack@eecs.umich.edu switch(dataSize) 1214767Sgblack@eecs.umich.edu { 1224767Sgblack@eecs.umich.edu case 1: 1235002Sgblack@eecs.umich.edu fault = xc->read(EA, (uint8_t&)Mem, flags); 1244767Sgblack@eecs.umich.edu break; 1254767Sgblack@eecs.umich.edu case 2: 1265002Sgblack@eecs.umich.edu fault = xc->read(EA, (uint16_t&)Mem, flags); 1274767Sgblack@eecs.umich.edu break; 1284767Sgblack@eecs.umich.edu case 4: 1295002Sgblack@eecs.umich.edu fault = xc->read(EA, (uint32_t&)Mem, flags); 1304767Sgblack@eecs.umich.edu break; 1314767Sgblack@eecs.umich.edu case 8: 1325002Sgblack@eecs.umich.edu fault = xc->read(EA, (uint64_t&)Mem, flags); 1334767Sgblack@eecs.umich.edu break; 1344767Sgblack@eecs.umich.edu default: 1355002Sgblack@eecs.umich.edu panic("Bad operand size %d for read at %#x.\n", dataSize, EA); 1364767Sgblack@eecs.umich.edu } 1374767Sgblack@eecs.umich.edu return fault; 1384767Sgblack@eecs.umich.edu } 1394767Sgblack@eecs.umich.edu 1404767Sgblack@eecs.umich.edu template<class Context, class MemType> 1414767Sgblack@eecs.umich.edu Fault write(Context *xc, MemType & Mem, Addr EA, unsigned flags) const 1424767Sgblack@eecs.umich.edu { 1434767Sgblack@eecs.umich.edu Fault fault = NoFault; 1445002Sgblack@eecs.umich.edu switch(dataSize) 1454767Sgblack@eecs.umich.edu { 1464767Sgblack@eecs.umich.edu case 1: 1475002Sgblack@eecs.umich.edu fault = xc->write((uint8_t&)Mem, EA, flags, 0); 1484767Sgblack@eecs.umich.edu break; 1494767Sgblack@eecs.umich.edu case 2: 1505002Sgblack@eecs.umich.edu fault = xc->write((uint16_t&)Mem, EA, flags, 0); 1514767Sgblack@eecs.umich.edu break; 1524767Sgblack@eecs.umich.edu case 4: 1535002Sgblack@eecs.umich.edu fault = xc->write((uint32_t&)Mem, EA, flags, 0); 1544767Sgblack@eecs.umich.edu break; 1554767Sgblack@eecs.umich.edu case 8: 1565002Sgblack@eecs.umich.edu fault = xc->write((uint64_t&)Mem, EA, flags, 0); 1574767Sgblack@eecs.umich.edu break; 1584767Sgblack@eecs.umich.edu default: 1595002Sgblack@eecs.umich.edu panic("Bad operand size %d for write at %#x.\n", dataSize, EA); 1604767Sgblack@eecs.umich.edu } 1614767Sgblack@eecs.umich.edu return fault; 1624767Sgblack@eecs.umich.edu } 1635727Sgblack@eecs.umich.edu 1645727Sgblack@eecs.umich.edu uint64_t 1655727Sgblack@eecs.umich.edu get(PacketPtr pkt) const 1665727Sgblack@eecs.umich.edu { 1675727Sgblack@eecs.umich.edu switch(dataSize) 1685727Sgblack@eecs.umich.edu { 1695727Sgblack@eecs.umich.edu case 1: 1705727Sgblack@eecs.umich.edu return pkt->get<uint8_t>(); 1715727Sgblack@eecs.umich.edu case 2: 1725727Sgblack@eecs.umich.edu return pkt->get<uint16_t>(); 1735727Sgblack@eecs.umich.edu case 4: 1745727Sgblack@eecs.umich.edu return pkt->get<uint32_t>(); 1755727Sgblack@eecs.umich.edu case 8: 1765727Sgblack@eecs.umich.edu return pkt->get<uint64_t>(); 1775727Sgblack@eecs.umich.edu default: 1785727Sgblack@eecs.umich.edu panic("Bad operand size %d for read at %#x.\n", 1795727Sgblack@eecs.umich.edu dataSize, pkt->getAddr()); 1805727Sgblack@eecs.umich.edu } 1815727Sgblack@eecs.umich.edu } 1824679Sgblack@eecs.umich.edu }; 1834679Sgblack@eecs.umich.edu} 1844679Sgblack@eecs.umich.edu 1854679Sgblack@eecs.umich.edu#endif //__ARCH_X86_INSTS_MICROLDSTOP_HH__ 186