registers.hh revision 6315 
1/*
2 * Copyright (c) 2007 The Hewlett-Packard Development Company
3 * All rights reserved.
4 *
5 * Redistribution and use of this software in source and binary forms,
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24 *     Palo Alto, California  94304
25 *
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33 * this software without specific prior written permission.  No right of
34 * sublicense is granted herewith.  Derivatives of the software and
35 * output created using the software may be prepared, but only for
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39 * and (ii) such Derivatives of the software include the above copyright
40 * notice to acknowledge the contribution from this software where
41 * applicable, this list of conditions and the disclaimer below.
42 *
43 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
44 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
45 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
46 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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49 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
50 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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54 *
55 * Authors: Gabe Black
56 */
57
58#ifndef __ARCH_X86_REGFILE_HH__
59#define __ARCH_X86_REGFILE_HH__
60
61#include <string>
62
63#include "arch/x86/intregfile.hh"
64#include "arch/x86/miscregs.hh"
65#include "arch/x86/isa_traits.hh"
66#include "arch/x86/x86_traits.hh"
67#include "arch/x86/types.hh"
68#include "base/types.hh"
69
70class Checkpoint;
71class EventManager;
72class ThreadContext;
73
74namespace X86ISA
75{
76    const int NumMiscArchRegs = NUM_MISCREGS;
77    const int NumMiscRegs = NUM_MISCREGS;
78
79    //Each 128 bit xmm register is broken into two effective 64 bit registers.
80    const int NumFloatRegs =
81        NumMMXRegs + 2 * NumXMMRegs + NumMicroFpRegs;
82    const int NumFloatArchRegs = NumFloatRegs + 8;
83
84    class RegFile
85    {
86      protected:
87        Addr rip; //Program Counter
88        Addr nextRip; //Next Program Counter
89
90      public:
91        Addr readPC();
92        void setPC(Addr val);
93
94        Addr readNextPC();
95        void setNextPC(Addr val);
96
97        Addr readNextNPC();
98        void setNextNPC(Addr val);
99
100      protected:
101        IntRegFile intRegFile; // integer register file
102
103      public:
104
105        void clear();
106
107        IntReg readIntReg(int intReg);
108
109        void setIntReg(int intReg, const IntReg &val);
110
111        void serialize(EventManager *em, std::ostream &os);
112        void unserialize(EventManager *em, Checkpoint *cp,
113            const std::string &section);
114    };
115
116    void copyRegs(ThreadContext *src, ThreadContext *dest);
117
118    void copyMiscRegs(ThreadContext *src, ThreadContext *dest);
119
120    int InterruptLevel(uint64_t softint);
121
122}; // namespace X86ISA
123
124#endif // __ARCH_X86_REGFILE_HH__
125