102 lines
3.1 KiB
C++
102 lines
3.1 KiB
C++
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/*
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* Copyright (c) 2002-2006 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Steve Raasch
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*/
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#ifndef __CPU_FUNC_UNIT_HH__
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#define __CPU_FUNC_UNIT_HH__
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#include <bitset>
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#include <string>
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#include <vector>
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#include "cpu/op_class.hh"
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#include "sim/sim_object.hh"
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////////////////////////////////////////////////////////////////////////////
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//
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// Structures used ONLY during the initialization phase...
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//
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//
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//
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struct OpDesc : public SimObject
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{
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OpClass opClass;
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unsigned opLat;
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unsigned issueLat;
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OpDesc(std::string name, OpClass c, unsigned o, unsigned i)
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: SimObject(name), opClass(c), opLat(o), issueLat(i) {};
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};
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struct FUDesc : public SimObject
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{
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std::vector<OpDesc *> opDescList;
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unsigned number;
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FUDesc(std::string name, std::vector<OpDesc *> l, unsigned n)
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: SimObject(name), opDescList(l), number(n) {};
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};
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typedef std::vector<OpDesc *>::iterator OPDDiterator;
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typedef std::vector<FUDesc *>::iterator FUDDiterator;
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////////////////////////////////////////////////////////////////////////////
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//
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// The actual FU object
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//
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//
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//
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class FuncUnit
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{
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private:
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unsigned opLatencies[Num_OpClasses];
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unsigned issueLatencies[Num_OpClasses];
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std::bitset<Num_OpClasses> capabilityList;
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public:
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FuncUnit();
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FuncUnit(const FuncUnit &fu);
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std::string name;
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void addCapability(OpClass cap, unsigned oplat, unsigned issuelat);
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bool provides(OpClass capability);
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std::bitset<Num_OpClasses> capabilities();
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unsigned &opLatency(OpClass capability);
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unsigned issueLatency(OpClass capability);
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};
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#endif // __FU_POOL_HH__
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