xref: /gem5/src/arch/x86/registers.hh

/*
 * Copyright (c) 2007 The Hewlett-Packard Development Company
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 * use which is NOT directed to receiving any direct monetary
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 * If you wish to use this software or functionality therein that may be
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 *
 * 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
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 * Non-Commercial Uses.  Derivatives of the software may be shared with
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 * and (ii) such Derivatives of the software include the above copyright
 * notice to acknowledge the contribution from this software where
 * applicable, this list of conditions and the disclaimer below.
 *
 * 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
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 * Authors: Gabe Black
 */

#ifndef __ARCH_X86_REGFILE_HH__
#define __ARCH_X86_REGFILE_HH__

#include <string>

#include "arch/x86/floatregfile.hh"
#include "arch/x86/intregfile.hh"
#include "arch/x86/miscregs.hh"
#include "arch/x86/isa_traits.hh"
#include "arch/x86/types.hh"
#include "base/types.hh"

class Checkpoint;
class EventManager;

namespace X86ISA
{
    const int NumMiscArchRegs = NUM_MISCREGS;
    const int NumMiscRegs = NUM_MISCREGS;

    class RegFile
    {
      protected:
        Addr rip; //Program Counter
        Addr nextRip; //Next Program Counter

      public:
        Addr readPC();
        void setPC(Addr val);

        Addr readNextPC();
        void setNextPC(Addr val);

        Addr readNextNPC();
        void setNextNPC(Addr val);

      protected:
        IntRegFile intRegFile; // integer register file
        FloatRegFile floatRegFile; // floating point register file

      public:

        void clear();

        FloatReg readFloatReg(int floatReg, int width);

        FloatReg readFloatReg(int floatReg);

        FloatRegBits readFloatRegBits(int floatReg, int width);

        FloatRegBits readFloatRegBits(int floatReg);

        void setFloatReg(int floatReg, const FloatReg &val, int width);

        void setFloatReg(int floatReg, const FloatReg &val);

        void setFloatRegBits(int floatReg, const FloatRegBits &val, int width);

        void setFloatRegBits(int floatReg, const FloatRegBits &val);

        IntReg readIntReg(int intReg);

        void setIntReg(int intReg, const IntReg &val);

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

    void copyRegs(ThreadContext *src, ThreadContext *dest);

    void copyMiscRegs(ThreadContext *src, ThreadContext *dest);

    int InterruptLevel(uint64_t softint);

}; // namespace X86ISA

#endif // __ARCH_X86_REGFILE_HH__