registers.hh revision 4137 
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:
20 *     Director of Intellectual Property Licensing
21 *     Office of Strategy and Technology
22 *     Hewlett-Packard Company
23 *     1501 Page Mill Road
24 *     Palo Alto, California  94304
25 *
26 * Redistributions of source code must retain the above copyright notice,
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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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38 * conditions herein which includes the Non-Commercial Use restrictions;
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 "arch/x86/floatregfile.hh"
62#include "arch/x86/intregfile.hh"
63#include "arch/x86/isa_traits.hh"
64#include "arch/x86/miscregfile.hh"
65#include "arch/x86/types.hh"
66#include "sim/host.hh"
67
68#include <string>
69
70class Checkpoint;
71
72namespace X86ISA
73{
74    class RegFile
75    {
76      protected:
77        Addr rip; //Program Counter
78        Addr nextRip; //Next Program Counter
79
80      public:
81        Addr readPC();
82        void SetPC(Addr val);
83
84        Addr readNextPC();
85        void setNextPC(Addr val);
86
87        Addr readNextNPC();
88        void setNextNPC(Addr val);
89
90      protected:
91        IntRegFile intRegFile; // integer register file
92        FloatRegFile floatRegFile; // floating point register file
93        MiscRegFile miscRegFile; // control register file
94
95      public:
96
97        void clear();
98
99        int FlattenIntIndex(int reg);
100
101        MiscReg readMiscReg(int miscReg);
102
103        MiscReg readMiscRegWithEffect(int miscReg, ThreadContext *tc);
104
105        void setMiscReg(int miscReg, const MiscReg &val);
106
107        void setMiscRegWithEffect(int miscReg, const MiscReg &val,
108                ThreadContext * tc);
109
110        int instAsid()
111        {
112            //XXX This doesn't make sense in x86
113            return 0;
114        }
115
116        int dataAsid()
117        {
118            //XXX This doesn't make sense in x86
119            return 0;
120        }
121
122        FloatReg readFloatReg(int floatReg, int width);
123
124        FloatReg readFloatReg(int floatReg);
125
126        FloatRegBits readFloatRegBits(int floatReg, int width);
127
128        FloatRegBits readFloatRegBits(int floatReg);
129
130        void setFloatReg(int floatReg, const FloatReg &val, int width);
131
132        void setFloatReg(int floatReg, const FloatReg &val);
133
134        void setFloatRegBits(int floatReg, const FloatRegBits &val, int width);
135
136        void setFloatRegBits(int floatReg, const FloatRegBits &val);
137
138        IntReg readIntReg(int intReg);
139
140        void setIntReg(int intReg, const IntReg &val);
141
142        void serialize(std::ostream &os);
143        void unserialize(Checkpoint *cp, const std::string &section);
144
145      public:
146
147        void changeContext(RegContextParam param, RegContextVal val);
148    };
149
150    int flattenIntIndex(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