decode_cache.cc revision 12621:982f22db6230
16019Shines@cs.fsu.edu/* 214128Sgiacomo.travaglini@arm.com * Copyright (c) 2011-2012 Google 37093Sgblack@eecs.umich.edu * All rights reserved. 47093Sgblack@eecs.umich.edu * 57093Sgblack@eecs.umich.edu * Redistribution and use in source and binary forms, with or without 67093Sgblack@eecs.umich.edu * modification, are permitted provided that the following conditions are 77093Sgblack@eecs.umich.edu * met: redistributions of source code must retain the above copyright 87093Sgblack@eecs.umich.edu * notice, this list of conditions and the following disclaimer; 97093Sgblack@eecs.umich.edu * redistributions in binary form must reproduce the above copyright 107093Sgblack@eecs.umich.edu * notice, this list of conditions and the following disclaimer in the 117093Sgblack@eecs.umich.edu * documentation and/or other materials provided with the distribution; 127093Sgblack@eecs.umich.edu * neither the name of the copyright holders nor the names of its 137093Sgblack@eecs.umich.edu * contributors may be used to endorse or promote products derived from 146019Shines@cs.fsu.edu * this software without specific prior written permission. 156019Shines@cs.fsu.edu * 166019Shines@cs.fsu.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 176019Shines@cs.fsu.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 186019Shines@cs.fsu.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 196019Shines@cs.fsu.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 206019Shines@cs.fsu.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 216019Shines@cs.fsu.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 226019Shines@cs.fsu.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 236019Shines@cs.fsu.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 246019Shines@cs.fsu.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 256019Shines@cs.fsu.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 266019Shines@cs.fsu.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 276019Shines@cs.fsu.edu * 286019Shines@cs.fsu.edu * Authors: Gabe Black 296019Shines@cs.fsu.edu */ 306019Shines@cs.fsu.edu 316019Shines@cs.fsu.edu#include "arch/generic/decode_cache.hh" 326019Shines@cs.fsu.edu 336019Shines@cs.fsu.edu#include "arch/decoder.hh" 346019Shines@cs.fsu.edu#include "arch/types.hh" 356019Shines@cs.fsu.edu#include "config/the_isa.hh" 366019Shines@cs.fsu.edu#include "cpu/static_inst.hh" 376019Shines@cs.fsu.edu 386019Shines@cs.fsu.edunamespace GenericISA 396019Shines@cs.fsu.edu{ 406019Shines@cs.fsu.edu 416735Sgblack@eecs.umich.eduStaticInstPtr 426735Sgblack@eecs.umich.eduBasicDecodeCache::decode(TheISA::Decoder *decoder, 4310037SARM gem5 Developers TheISA::ExtMachInst mach_inst, Addr addr) 4410037SARM gem5 Developers{ 456019Shines@cs.fsu.edu StaticInstPtr &si = decodePages.lookup(addr); 466019Shines@cs.fsu.edu if (si && (si->machInst == mach_inst)) 476019Shines@cs.fsu.edu return si; 4811793Sbrandon.potter@amd.com 4911793Sbrandon.potter@amd.com auto iter = instMap.find(mach_inst); 5010037SARM gem5 Developers if (iter != instMap.end()) { 5110037SARM gem5 Developers si = iter->second; 5210037SARM gem5 Developers return si; 538229Snate@binkert.org } 548229Snate@binkert.org 556019Shines@cs.fsu.edu si = decoder->decodeInst(mach_inst); 568232Snate@binkert.org instMap[mach_inst] = si; 578782Sgblack@eecs.umich.edu return si; 586019Shines@cs.fsu.edu} 596019Shines@cs.fsu.edu 606019Shines@cs.fsu.edu} // namespace GenericISA 616019Shines@cs.fsu.edu