microldstop.hh revision 8954
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_MICROLDSTOP_HH__ 41#define __ARCH_X86_INSTS_MICROLDSTOP_HH__ 42 43#include "arch/x86/insts/microop.hh" 44#include "mem/packet.hh" 45#include "mem/request.hh" 46#include "sim/faults.hh" 47 48namespace X86ISA 49{ 50 const Request::FlagsType SegmentFlagMask = mask(4); 51 const int FlagShift = 4; 52 enum FlagBit { 53 CPL0FlagBit = 1, 54 AddrSizeFlagBit = 2, 55 StoreCheck = 4 56 }; 57 58 /** 59 * Base class for load and store ops 60 */ 61 class LdStOp : public X86MicroopBase 62 { 63 protected: 64 const uint8_t scale; 65 const RegIndex index; 66 const RegIndex base; 67 const uint64_t disp; 68 const uint8_t segment; 69 const RegIndex data; 70 const uint8_t dataSize; 71 const uint8_t addressSize; 72 const Request::FlagsType memFlags; 73 RegIndex foldOBit, foldABit; 74 75 //Constructor 76 LdStOp(ExtMachInst _machInst, 77 const char * mnem, const char * _instMnem, 78 uint64_t setFlags, 79 uint8_t _scale, InstRegIndex _index, InstRegIndex _base, 80 uint64_t _disp, InstRegIndex _segment, 81 InstRegIndex _data, 82 uint8_t _dataSize, uint8_t _addressSize, 83 Request::FlagsType _memFlags, 84 OpClass __opClass) : 85 X86MicroopBase(_machInst, mnem, _instMnem, setFlags, __opClass), 86 scale(_scale), index(_index.idx), base(_base.idx), 87 disp(_disp), segment(_segment.idx), 88 data(_data.idx), 89 dataSize(_dataSize), addressSize(_addressSize), 90 memFlags(_memFlags | _segment.idx) 91 { 92 assert(_segment.idx < NUM_SEGMENTREGS); 93 foldOBit = (dataSize == 1 && !_machInst.rex.present) ? 1 << 6 : 0; 94 foldABit = 95 (addressSize == 1 && !_machInst.rex.present) ? 1 << 6 : 0; 96 } 97 98 std::string generateDisassembly(Addr pc, 99 const SymbolTable *symtab) const; 100 }; 101} 102 103#endif //__ARCH_X86_INSTS_MICROLDSTOP_HH__ 104