registers.hh revision 6216 
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
7 * following conditions are met:
8 *
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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,
13 * teaching, education and corporate research & development.
14 * Illustrative examples of commercial use are distributing products for
15 * commercial advantage and providing services using the software for
16 * commercial advantage.
17 *
18 * If you wish to use this software or functionality therein that may be
19 * covered by patents for commercial use, please contact:
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22 *     Hewlett-Packard Company
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24 *     Palo Alto, California  94304
25 *
26 * Redistributions of source code must retain the above copyright notice,
27 * this list of conditions and the following disclaimer.  Redistributions
28 * in binary form must reproduce the above copyright notice, this list of
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31 * the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its
32 * contributors may be used to endorse or promote products derived from
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
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
51 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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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/floatregfile.hh"
64#include "arch/x86/intregfile.hh"
65#include "arch/x86/isa_traits.hh"
66#include "arch/x86/miscregfile.hh"
67#include "arch/x86/types.hh"
68#include "base/types.hh"
69
70class Checkpoint;
71class EventManager;
72
73namespace X86ISA
74{
75    class RegFile
76    {
77      protected:
78        Addr rip; //Program Counter
79        Addr nextRip; //Next Program Counter
80
81      public:
82        Addr readPC();
83        void setPC(Addr val);
84
85        Addr readNextPC();
86        void setNextPC(Addr val);
87
88        Addr readNextNPC();
89        void setNextNPC(Addr val);
90
91      protected:
92        IntRegFile intRegFile; // integer register file
93        FloatRegFile floatRegFile; // floating point register file
94        MiscRegFile miscRegFile; // control register file
95
96      public:
97
98        void clear();
99
100        MiscReg readMiscRegNoEffect(int miscReg);
101
102        MiscReg readMiscReg(int miscReg, ThreadContext *tc);
103
104        void setMiscRegNoEffect(int miscReg, const MiscReg &val);
105
106        void setMiscReg(int miscReg, const MiscReg &val,
107                ThreadContext * tc);
108
109        int instAsid()
110        {
111            //XXX This doesn't make sense in x86
112            return 0;
113        }
114
115        int dataAsid()
116        {
117            //XXX This doesn't make sense in x86
118            return 0;
119        }
120
121        FloatReg readFloatReg(int floatReg, int width);
122
123        FloatReg readFloatReg(int floatReg);
124
125        FloatRegBits readFloatRegBits(int floatReg, int width);
126
127        FloatRegBits readFloatRegBits(int floatReg);
128
129        void setFloatReg(int floatReg, const FloatReg &val, int width);
130
131        void setFloatReg(int floatReg, const FloatReg &val);
132
133        void setFloatRegBits(int floatReg, const FloatRegBits &val, int width);
134
135        void setFloatRegBits(int floatReg, const FloatRegBits &val);
136
137        IntReg readIntReg(int intReg);
138
139        void setIntReg(int intReg, const IntReg &val);
140
141        void serialize(EventManager *em, std::ostream &os);
142        void unserialize(EventManager *em, Checkpoint *cp,
143            const std::string &section);
144
145      public:
146    };
147
148    int flattenIntIndex(ThreadContext * tc, int reg);
149
150    int flattenFloatIndex(ThreadContext * tc, int reg);
151
152    void copyRegs(ThreadContext *src, ThreadContext *dest);
153
154    void copyMiscRegs(ThreadContext *src, ThreadContext *dest);
155
156    int InterruptLevel(uint64_t softint);
157
158}; // namespace X86ISA
159
160#endif // __ARCH_X86_REGFILE_HH__
161