ReservationTable.hh

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/*
    Copyright (c) 2002-2009 Tampere University.
 
    This file is part of TTA-Based Codesign Environment (TCE).
 
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    copy of this software and associated documentation files (the "Software"),
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    Software is furnished to do so, subject to the following conditions:
 
    The above copyright notice and this permission notice shall be included in
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/**
 * @file ReservationTable.hh
 *
 * Declaration of ReservationTable class.
 *
 * @author Pekka Jääskeläinen 2007 (pekka.jaaskelainen-no.spam-tut.fi)
 * @note rating: red
 */
 
#ifndef TTA_RESERVATION_TABLE_HH
#define TTA_RESERVATION_TABLE_HH
 
#include "BitMatrix.hh"
 
namespace TTAMachine {
    class FunctionUnit;
    class HWOperation;
}
 
/**
 * Models pipeline resources using a Conventional Reservation Table (CRT).
 *
 * An efficient implementation to avoid all kinds of function overheads etc.
 * All simulation operations can be done by calling inline methods.
 */
class ReservationTable : public BitMatrix {
public:
 
    typedef int ResourceID;
 
    ReservationTable(const TTAMachine::FunctionUnit& fu);
    ReservationTable(const TTAMachine::HWOperation& operation);
    virtual ~ReservationTable();
 
    void init(const TTAMachine::FunctionUnit& fu);
 
    bool conflictsWith(
        const ReservationTable& anotherReservationTable, 
        int cycle) const;
 
    using BitMatrix::conflictsWith;
 
    void issueOperation(ReservationTable& anotherReservationTable);
    void advanceCycle();
 
    bool isReserved(ResourceID resource, int cycle) const;
};
 
#include "ReservationTable.icc"
 
#endif