mem.hh revision 6253
16253Sgblack@eecs.umich.edu/* Copyright (c) 2007-2008 The Florida State University 26253Sgblack@eecs.umich.edu * All rights reserved. 36253Sgblack@eecs.umich.edu * 46253Sgblack@eecs.umich.edu * Redistribution and use in source and binary forms, with or without 56253Sgblack@eecs.umich.edu * modification, are permitted provided that the following conditions are 66253Sgblack@eecs.umich.edu * met: redistributions of source code must retain the above copyright 76253Sgblack@eecs.umich.edu * notice, this list of conditions and the following disclaimer; 86253Sgblack@eecs.umich.edu * redistributions in binary form must reproduce the above copyright 96253Sgblack@eecs.umich.edu * notice, this list of conditions and the following disclaimer in the 106253Sgblack@eecs.umich.edu * documentation and/or other materials provided with the distribution; 116253Sgblack@eecs.umich.edu * neither the name of the copyright holders nor the names of its 126253Sgblack@eecs.umich.edu * contributors may be used to endorse or promote products derived from 136253Sgblack@eecs.umich.edu * this software without specific prior written permission. 146253Sgblack@eecs.umich.edu * 156253Sgblack@eecs.umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 166253Sgblack@eecs.umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 176253Sgblack@eecs.umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 186253Sgblack@eecs.umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 196253Sgblack@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 206253Sgblack@eecs.umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 216253Sgblack@eecs.umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 226253Sgblack@eecs.umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 236253Sgblack@eecs.umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 246253Sgblack@eecs.umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 256253Sgblack@eecs.umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 266253Sgblack@eecs.umich.edu * 276253Sgblack@eecs.umich.edu * Authors: Stephen Hines 286253Sgblack@eecs.umich.edu */ 296253Sgblack@eecs.umich.edu#ifndef __ARCH_ARM_MEM_HH__ 306253Sgblack@eecs.umich.edu#define __ARCH_ARM_MEM_HH__ 316253Sgblack@eecs.umich.edu 326253Sgblack@eecs.umich.edu#include "arch/arm/insts/pred_inst.hh" 336253Sgblack@eecs.umich.edu 346253Sgblack@eecs.umich.edunamespace ArmISA 356253Sgblack@eecs.umich.edu{ 366253Sgblack@eecs.umich.edu/** 376253Sgblack@eecs.umich.edu * Base class for general Arm memory-format instructions. 386253Sgblack@eecs.umich.edu */ 396253Sgblack@eecs.umich.educlass Memory : public PredOp 406253Sgblack@eecs.umich.edu{ 416253Sgblack@eecs.umich.edu protected: 426253Sgblack@eecs.umich.edu 436253Sgblack@eecs.umich.edu /// Memory request flags. See mem_req_base.hh. 446253Sgblack@eecs.umich.edu unsigned memAccessFlags; 456253Sgblack@eecs.umich.edu /// Pointer to EAComp object. 466253Sgblack@eecs.umich.edu const StaticInstPtr eaCompPtr; 476253Sgblack@eecs.umich.edu /// Pointer to MemAcc object. 486253Sgblack@eecs.umich.edu const StaticInstPtr memAccPtr; 496253Sgblack@eecs.umich.edu 506253Sgblack@eecs.umich.edu /// Displacement for EA calculation (signed). 516253Sgblack@eecs.umich.edu int32_t disp; 526253Sgblack@eecs.umich.edu int32_t disp8; 536253Sgblack@eecs.umich.edu int32_t up; 546253Sgblack@eecs.umich.edu int32_t hilo, 556253Sgblack@eecs.umich.edu shift_size, 566253Sgblack@eecs.umich.edu shift; 576253Sgblack@eecs.umich.edu 586253Sgblack@eecs.umich.edu /// Constructor 596253Sgblack@eecs.umich.edu Memory(const char *mnem, ExtMachInst _machInst, OpClass __opClass, 606253Sgblack@eecs.umich.edu StaticInstPtr _eaCompPtr = nullStaticInstPtr, 616253Sgblack@eecs.umich.edu StaticInstPtr _memAccPtr = nullStaticInstPtr) 626253Sgblack@eecs.umich.edu : PredOp(mnem, _machInst, __opClass), 636253Sgblack@eecs.umich.edu memAccessFlags(0), 646253Sgblack@eecs.umich.edu eaCompPtr(_eaCompPtr), memAccPtr(_memAccPtr), 656253Sgblack@eecs.umich.edu disp(machInst.immed11_0), 666253Sgblack@eecs.umich.edu disp8(machInst.immed7_0 << 2), 676253Sgblack@eecs.umich.edu up(machInst.puswl.up), 686253Sgblack@eecs.umich.edu hilo((machInst.immedHi11_8 << 4) | machInst.immedLo3_0), 696253Sgblack@eecs.umich.edu shift_size(machInst.shiftSize), shift(machInst.shift) 706253Sgblack@eecs.umich.edu { 716253Sgblack@eecs.umich.edu // When Up is not set, then we must subtract by the displacement 726253Sgblack@eecs.umich.edu if (!up) 736253Sgblack@eecs.umich.edu { 746253Sgblack@eecs.umich.edu disp = -disp; 756253Sgblack@eecs.umich.edu disp8 = -disp8; 766253Sgblack@eecs.umich.edu hilo = -hilo; 776253Sgblack@eecs.umich.edu } 786253Sgblack@eecs.umich.edu } 796253Sgblack@eecs.umich.edu 806253Sgblack@eecs.umich.edu std::string 816253Sgblack@eecs.umich.edu generateDisassembly(Addr pc, const SymbolTable *symtab) const; 826253Sgblack@eecs.umich.edu 836253Sgblack@eecs.umich.edu public: 846253Sgblack@eecs.umich.edu 856253Sgblack@eecs.umich.edu const StaticInstPtr &eaCompInst() const { return eaCompPtr; } 866253Sgblack@eecs.umich.edu const StaticInstPtr &memAccInst() const { return memAccPtr; } 876253Sgblack@eecs.umich.edu}; 886253Sgblack@eecs.umich.edu 896253Sgblack@eecs.umich.edu /** 906253Sgblack@eecs.umich.edu * Base class for a few miscellaneous memory-format insts 916253Sgblack@eecs.umich.edu * that don't interpret the disp field 926253Sgblack@eecs.umich.edu */ 936253Sgblack@eecs.umich.educlass MemoryNoDisp : public Memory 946253Sgblack@eecs.umich.edu{ 956253Sgblack@eecs.umich.edu protected: 966253Sgblack@eecs.umich.edu /// Constructor 976253Sgblack@eecs.umich.edu MemoryNoDisp(const char *mnem, ExtMachInst _machInst, OpClass __opClass, 986253Sgblack@eecs.umich.edu StaticInstPtr _eaCompPtr = nullStaticInstPtr, 996253Sgblack@eecs.umich.edu StaticInstPtr _memAccPtr = nullStaticInstPtr) 1006253Sgblack@eecs.umich.edu : Memory(mnem, _machInst, __opClass, _eaCompPtr, _memAccPtr) 1016253Sgblack@eecs.umich.edu { 1026253Sgblack@eecs.umich.edu } 1036253Sgblack@eecs.umich.edu 1046253Sgblack@eecs.umich.edu std::string 1056253Sgblack@eecs.umich.edu generateDisassembly(Addr pc, const SymbolTable *symtab) const; 1066253Sgblack@eecs.umich.edu}; 1076253Sgblack@eecs.umich.edu} 1086253Sgblack@eecs.umich.edu 1096253Sgblack@eecs.umich.edu#endif //__ARCH_ARM_INSTS_MEM_HH__ 110