int.hh revision 6361 
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 *
9 * The software must be used only for Non-Commercial Use which means any
10 * use which is NOT directed to receiving any direct monetary
11 * compensation for, or commercial advantage from such use.  Illustrative
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,
27 * this list of conditions and the following disclaimer.  Redistributions
28 * in binary form must reproduce the above copyright notice, this list of
29 * conditions and the following disclaimer in the documentation and/or
30 * other materials provided with the distribution.  Neither the name of
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
36 * Non-Commercial Uses.  Derivatives of the software may be shared with
37 * others provided: (i) the others agree to abide by the list of
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
52 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
53 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
54 *
55 * Authors: Gabe Black
56 */
57
58#ifndef __ARCH_X86_INTREGS_HH__
59#define __ARCH_X86_INTREGS_HH__
60
61#include "arch/x86/x86_traits.hh"
62#include "base/bitunion.hh"
63#include "base/misc.hh"
64#include "sim/core.hh"
65
66namespace X86ISA
67{
68    BitUnion64(X86IntReg)
69        Bitfield<63,0> R;
70        SignedBitfield<63,0> SR;
71        Bitfield<31,0> E;
72        SignedBitfield<31,0> SE;
73        Bitfield<15,0> X;
74        SignedBitfield<15,0> SX;
75        Bitfield<15,8> H;
76        SignedBitfield<15,8> SH;
77        Bitfield<7, 0> L;
78        SignedBitfield<7, 0> SL;
79    EndBitUnion(X86IntReg)
80
81    enum IntRegIndex
82    {
83        INTREG_RAX,
84        INTREG_EAX = INTREG_RAX,
85        INTREG_AX = INTREG_RAX,
86        INTREG_AL = INTREG_RAX,
87
88        INTREG_RCX,
89        INTREG_ECX = INTREG_RCX,
90        INTREG_CX = INTREG_RCX,
91        INTREG_CL = INTREG_RCX,
92
93        INTREG_RDX,
94        INTREG_EDX = INTREG_RDX,
95        INTREG_DX = INTREG_RDX,
96        INTREG_DL = INTREG_RDX,
97
98        INTREG_RBX,
99        INTREG_EBX = INTREG_RBX,
100        INTREG_BX = INTREG_RBX,
101        INTREG_BL = INTREG_RBX,
102
103        INTREG_RSP,
104        INTREG_ESP = INTREG_RSP,
105        INTREG_SP = INTREG_RSP,
106        INTREG_SPL = INTREG_RSP,
107        INTREG_AH = INTREG_RSP,
108
109        INTREG_RBP,
110        INTREG_EBP = INTREG_RBP,
111        INTREG_BP = INTREG_RBP,
112        INTREG_BPL = INTREG_RBP,
113        INTREG_CH = INTREG_RBP,
114
115        INTREG_RSI,
116        INTREG_ESI = INTREG_RSI,
117        INTREG_SI = INTREG_RSI,
118        INTREG_SIL = INTREG_RSI,
119        INTREG_DH = INTREG_RSI,
120
121        INTREG_RDI,
122        INTREG_EDI = INTREG_RDI,
123        INTREG_DI = INTREG_RDI,
124        INTREG_DIL = INTREG_RDI,
125        INTREG_BH = INTREG_RDI,
126
127        INTREG_R8,
128        INTREG_R8D = INTREG_R8,
129        INTREG_R8W = INTREG_R8,
130        INTREG_R8B = INTREG_R8,
131
132        INTREG_R9,
133        INTREG_R9D = INTREG_R9,
134        INTREG_R9W = INTREG_R9,
135        INTREG_R9B = INTREG_R9,
136
137        INTREG_R10,
138        INTREG_R10D = INTREG_R10,
139        INTREG_R10W = INTREG_R10,
140        INTREG_R10B = INTREG_R10,
141
142        INTREG_R11,
143        INTREG_R11D = INTREG_R11,
144        INTREG_R11W = INTREG_R11,
145        INTREG_R11B = INTREG_R11,
146
147        INTREG_R12,
148        INTREG_R12D = INTREG_R12,
149        INTREG_R12W = INTREG_R12,
150        INTREG_R12B = INTREG_R12,
151
152        INTREG_R13,
153        INTREG_R13D = INTREG_R13,
154        INTREG_R13W = INTREG_R13,
155        INTREG_R13B = INTREG_R13,
156
157        INTREG_R14,
158        INTREG_R14D = INTREG_R14,
159        INTREG_R14W = INTREG_R14,
160        INTREG_R14B = INTREG_R14,
161
162        INTREG_R15,
163        INTREG_R15D = INTREG_R15,
164        INTREG_R15W = INTREG_R15,
165        INTREG_R15B = INTREG_R15,
166
167        NUM_INTREGS
168    };
169
170    // This needs to be large enough to miss all the other bits of an index.
171    static const IntRegIndex IntFoldBit = (IntRegIndex)(1 << 6);
172
173    inline static IntRegIndex
174    INTREG_MICRO(int index)
175    {
176        return (IntRegIndex)(NUM_INTREGS + index);
177    }
178
179    inline static IntRegIndex
180    INTREG_PSEUDO(int index)
181    {
182        return (IntRegIndex)(NUM_INTREGS + NumMicroIntRegs + index);
183    }
184
185    inline static IntRegIndex
186    INTREG_IMPLICIT(int index)
187    {
188        return (IntRegIndex)(NUM_INTREGS + NumMicroIntRegs +
189                             NumPseudoIntRegs + index);
190    }
191
192    inline static IntRegIndex
193    INTREG_FOLDED(int index, int foldBit)
194    {
195        if ((index & 0x1C) == 4 && foldBit)
196            index = (index - 4) | foldBit;
197        return (IntRegIndex)index;
198    }
199};
200
201#endif // __ARCH_X86_INTREGS_HH__
202