src/arch/mips/regfile/int_regfile.hh

/*
 * Copyright (c) 2006 The Regents of The University of Michigan
 * Copyright (c) 2007 MIPS Technologies, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met: redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer;
 * redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution;
 * neither the name of the copyright holders nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Authors: Korey Sewell
 */

#ifndef __ARCH_MIPS_REGFILE_INT_REGFILE_HH__
#define __ARCH_MIPS_REGFILE_INT_REGFILE_HH__

#include "arch/mips/types.hh"
#include "arch/mips/isa_traits.hh"
#include "base/misc.hh"
#include "base/trace.hh"
#include "sim/faults.hh"

class Checkpoint;

namespace MipsISA
{
    static inline std::string getIntRegName(RegIndex)
    {
        return "";
    }

    enum MiscIntRegNums {
       LO = NumIntArchRegs,
       HI,
       DSPACX0,
       DSPLo1,
       DSPHi1,
       DSPACX1,
       DSPLo2,
       DSPHi2,
       DSPACX2,
       DSPLo3,
       DSPHi3,
       DSPACX3,
       DSPControl,
       DSPLo0 = LO,
       DSPHi0 = HI
    };

    class IntRegFile
    {
      protected:
        IntReg regs[NumIntRegs];
        int currShadowSet;
      public:
        void clear();
        int readShadowSet();
        void setShadowSet(int css);
        IntReg readReg(int intReg);
        Fault setReg(int intReg, const IntReg &val);

        void serialize(std::ostream &os);
        void unserialize(Checkpoint *cp, const std::string &section);

    };

} // namespace MipsISA

#endif