?? inst_fifo.hh
字號:
/* * Copyright (c) 2002, 2003, 2004, 2005 * The Regents of The University of Michigan * All Rights Reserved * * This code is part of the M5 simulator, developed by Nathan Binkert, * Erik Hallnor, Steve Raasch, and Steve Reinhardt, with contributions * from Ron Dreslinski, Dave Greene, Lisa Hsu, Kevin Lim, Ali Saidi, * and Andrew Schultz. * * Permission is granted to use, copy, create derivative works and * redistribute this software and such derivative works for any * purpose, so long as the copyright notice above, this grant of * permission, and the disclaimer below appear in all copies made; and * so long as the name of The University of Michigan is not used in * any advertising or publicity pertaining to the use or distribution * of this software without specific, written prior authorization. * * THIS SOFTWARE IS PROVIDED AS IS, WITHOUT REPRESENTATION FROM THE * UNIVERSITY OF MICHIGAN AS TO ITS FITNESS FOR ANY PURPOSE, AND * WITHOUT WARRANTY BY THE UNIVERSITY OF MICHIGAN OF ANY KIND, EITHER * EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE. THE REGENTS OF THE UNIVERSITY OF MICHIGAN SHALL NOT BE * LIABLE FOR ANY DAMAGES, INCLUDING DIRECT, SPECIAL, INDIRECT, * INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WITH RESPECT TO ANY CLAIM * ARISING OUT OF OR IN CONNECTION WITH THE USE OF THE SOFTWARE, EVEN * IF IT HAS BEEN OR IS HEREAFTER ADVISED OF THE POSSIBILITY OF SUCH * DAMAGES. */#ifndef __ENCUMBERED_CPU_FULL_INSN_FIFO_HH__#define __ENCUMBERED_CPU_FULL_INSN_FIFO_HH__#include "base/fifo_buffer.hh"#include "cpu/smt.hh"#include "encumbered/cpu/full/dyn_inst.hh"class InstructionFifo{ private: struct InstRecord { DynInst *inst; unsigned thread; // constructor InstRecord() : inst(0) {} InstRecord(DynInst *i) : inst(i), thread(i->thread_number) {} void squash() { inst->squash(); delete inst; inst = 0; } void dump() { assert(inst != 0); inst->dump(); } }; typedef FifoBuffer<InstRecord>::iterator iterator; FifoBuffer<InstRecord> *instructions; unsigned insts[SMT_MAX_THREADS]; unsigned size; public: InstructionFifo(unsigned size); unsigned add(DynInst *inst); unsigned count() { return instructions->count(); } unsigned count(unsigned t) { return insts[t]; } DynInst *peek(); DynInst *remove(unsigned *thread = 0); unsigned squash(); unsigned squash(unsigned t); void dump(); void dump(unsigned thread); ~InstructionFifo() { delete instructions; }};#endif // __INSN_FIFO_HH__
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