/* * Copyright (c) 2001, 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. *//* * This file is a part of the SimpleScalar tool suite written by * Todd M. Austin as a part of the Multiscalar Research Project. * * The tool suite is currently maintained by Doug Burger and Todd M. Austin. * * Copyright (C) 1997, 1998 by Todd M. Austin * * This source file is distributed "as is" in the hope that it will be * useful.  The tool set comes with no warranty, and no author or * distributor accepts any responsibility for the consequences of its * use. * * Everyone is granted permission to copy, modify and redistribute * this tool set under the following conditions: * *    This source code is distributed for non-commercial use only. *    Please contact the maintainer for restrictions applying to *    commercial use. * *    Permission is granted to anyone to make or distribute copies *    of this source code, either as received or modified, in any *    medium, provided that all copyright notices, permission and *    nonwarranty notices are preserved, and that the distributor *    grants the recipient permission for further redistribution as *    permitted by this document. * *    Permission is granted to distribute this file in compiled *    or executable form under the same conditions that apply for *    source code, provided that either: * *    A. it is accompanied by the corresponding machine-readable *       source code, *    B. it is accompanied by a written offer, with no time limit, *       to give anyone a machine-readable copy of the corresponding *       source code in return for reimbursement of the cost of *       distribution.  This written offer must permit verbatim *       duplication by anyone, or *    C. it is distributed by someone who received only the *       executable form, and is accompanied by a copy of the *       written offer of source code that they received concurrently. * * In other words, you are welcome to use, share and improve this * source file.  You are forbidden to forbid anyone else to use, share * and improve what you give them. */#ifndef __ENCUMBERED_CPU_FULL_CV_SPEC_STATE_HH__#define __ENCUMBERED_CPU_FULL_CV_SPEC_STATE_HH__#include "base/res_list.hh"#include "cpu/inst_seq.hh"#include "encumbered/cpu/full/create_vector.hh"#define NUM_DEFAULT_PRODUCER_ENTRIES 20class CreateVecSpecState{  private:    struct cv_entry    {	InstSeqNum seq;	unsigned  reg;  // which reg this link belongs to	CVLink   link;    };    CreateVector *true_cv;    unsigned num_entries;    //  A place to store this thread's use_spec_cv value    std::bitset<TotalNumRegs> stored_spec_cv;    res_list<cv_entry> *cv_list;    typedef res_list<cv_entry>::iterator cv_iterator;  public:    //    //  Constructor    //    CreateVecSpecState() {	cv_list =	    new res_list<cv_entry>(NUM_DEFAULT_PRODUCER_ENTRIES, true, 4);    }    void initialize(CreateVector *);    //    //  Restore this state    //    void restore();    //    //  Destructor    //    ~CreateVecSpecState() {	if (cv_list)	    delete cv_list;    }};#define NUM_DEFAULT_STATES 100class SpecStateList{  private:    res_list<CreateVecSpecState> *state_list;  public:    typedef res_list<CreateVecSpecState>::iterator ss_iterator;    SpecStateList() {	state_list =	    new res_list<CreateVecSpecState>(NUM_DEFAULT_STATES, true, 2);    }    ss_iterator get(CreateVector *cv) {	ss_iterator i = state_list->add_tail();	i->initialize(cv);	return i;    }    void release(ss_iterator &i) {	i->restore();	dump(i);    }    void dump(ss_iterator &i) {	state_list->remove(i);    }};#endif // __ENCUMBERED_CPU_FULL_CV_SPEC_STATE_HH__