registers.hh revision 6319 
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,
6 * with or without modification, are permitted provided that the
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10 * use which is NOT directed to receiving any direct monetary
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12 * examples of non-commercial use are academic research, personal study,
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14 * Illustrative examples of commercial use are distributing products for
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17 *
18 * If you wish to use this software or functionality therein that may be
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20 *     Director of Intellectual Property Licensing
21 *     Office of Strategy and Technology
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24 *     Palo Alto, California  94304
25 *
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27 * this list of conditions and the following disclaimer.  Redistributions
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31 * the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its
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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
36 * Non-Commercial Uses.  Derivatives of the software may be shared with
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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
47 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
48 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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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53 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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/intregs.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    const int NumIntArchRegs = NUM_INTREGS;
80    const int NumIntRegs =
81        NumIntArchRegs + NumMicroIntRegs +
82        NumPseudoIntRegs + NumImplicitIntRegs;
83
84    //Each 128 bit xmm register is broken into two effective 64 bit registers.
85    const int NumFloatRegs =
86        NumMMXRegs + 2 * NumXMMRegs + NumMicroFpRegs;
87    const int NumFloatArchRegs = NumFloatRegs + 8;
88
89    class RegFile
90    {
91      protected:
92        Addr rip; //Program Counter
93        Addr nextRip; //Next Program Counter
94
95      public:
96        Addr readPC();
97        void setPC(Addr val);
98
99        Addr readNextPC();
100        void setNextPC(Addr val);
101
102        Addr readNextNPC();
103        void setNextNPC(Addr val);
104
105      public:
106
107        void clear()
108        {}
109
110        void serialize(EventManager *em, std::ostream &os)
111        {}
112
113        void unserialize(EventManager *em, Checkpoint *cp,
114                const std::string &section)
115        {}
116    };
117
118    void copyRegs(ThreadContext *src, ThreadContext *dest);
119
120    void copyMiscRegs(ThreadContext *src, ThreadContext *dest);
121
122    int InterruptLevel(uint64_t softint);
123
124}; // namespace X86ISA
125
126#endif // __ARCH_X86_REGFILE_HH__
127