float.hh revision 6343 
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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13 * teaching, education and corporate research & development.
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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24 *     Palo Alto, California  94304
25 *
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27 * this list of conditions and the following disclaimer.  Redistributions
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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
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_FLOATREGS_HH__
59#define __ARCH_X86_FLOATREGS_HH__
60
61#include "arch/x86/x86_traits.hh"
62#include "base/bitunion.hh"
63
64namespace X86ISA
65{
66    enum FloatRegIndex
67    {
68        // MMX/X87 registers
69        FLOATREG_MMX_BASE,
70        FLOATREG_FPR_BASE = FLOATREG_MMX_BASE,
71        FLOATREG_MMX0 = FLOATREG_MMX_BASE,
72        FLOATREG_MMX1,
73        FLOATREG_MMX2,
74        FLOATREG_MMX3,
75        FLOATREG_MMX4,
76        FLOATREG_MMX5,
77        FLOATREG_MMX6,
78        FLOATREG_MMX7,
79
80        FLOATREG_FPR0 = FLOATREG_FPR_BASE,
81        FLOATREG_FPR1,
82        FLOATREG_FPR2,
83        FLOATREG_FPR3,
84        FLOATREG_FPR4,
85        FLOATREG_FPR5,
86        FLOATREG_FPR6,
87        FLOATREG_FPR7,
88
89        FLOATREG_XMM_BASE = FLOATREG_MMX_BASE + NumMMXRegs,
90        FLOATREG_XMM0_LOW = FLOATREG_XMM_BASE,
91        FLOATREG_XMM0_HIGH,
92        FLOATREG_XMM1_LOW,
93        FLOATREG_XMM1_HIGH,
94        FLOATREG_XMM2_LOW,
95        FLOATREG_XMM2_HIGH,
96        FLOATREG_XMM3_LOW,
97        FLOATREG_XMM3_HIGH,
98        FLOATREG_XMM4_LOW,
99        FLOATREG_XMM4_HIGH,
100        FLOATREG_XMM5_LOW,
101        FLOATREG_XMM5_HIGH,
102        FLOATREG_XMM6_LOW,
103        FLOATREG_XMM6_HIGH,
104        FLOATREG_XMM7_LOW,
105        FLOATREG_XMM7_HIGH,
106        FLOATREG_XMM8_LOW,
107        FLOATREG_XMM8_HIGH,
108        FLOATREG_XMM9_LOW,
109        FLOATREG_XMM9_HIGH,
110        FLOATREG_XMM10_LOW,
111        FLOATREG_XMM10_HIGH,
112        FLOATREG_XMM11_LOW,
113        FLOATREG_XMM11_HIGH,
114        FLOATREG_XMM12_LOW,
115        FLOATREG_XMM12_HIGH,
116        FLOATREG_XMM13_LOW,
117        FLOATREG_XMM13_HIGH,
118        FLOATREG_XMM14_LOW,
119        FLOATREG_XMM14_HIGH,
120        FLOATREG_XMM15_LOW,
121        FLOATREG_XMM15_HIGH,
122
123        FLOATREG_MICROFP_BASE = FLOATREG_XMM_BASE + 2 * NumXMMRegs,
124        FLOATREG_MICROFP0 = FLOATREG_MICROFP_BASE,
125        FLOATREG_MICROFP1,
126        FLOATREG_MICROFP2,
127        FLOATREG_MICROFP3,
128        FLOATREG_MICROFP4,
129        FLOATREG_MICROFP5,
130        FLOATREG_MICROFP6,
131        FLOATREG_MICROFP7,
132
133        NUM_FLOATREGS = FLOATREG_MICROFP_BASE + NumMicroFpRegs
134    };
135
136    static inline FloatRegIndex
137    FLOATREG_MMX(int index)
138    {
139        return (FloatRegIndex)(FLOATREG_MMX_BASE + index);
140    }
141
142    static inline FloatRegIndex
143    FLOATREG_FPR(int index)
144    {
145        return (FloatRegIndex)(FLOATREG_FPR_BASE + index);
146    }
147
148    static inline FloatRegIndex
149    FLOATREG_XMM_LOW(int index)
150    {
151        return (FloatRegIndex)(FLOATREG_XMM_BASE + 2 * index);
152    }
153
154    static inline FloatRegIndex
155    FLOATREG_XMM_HIGH(int index)
156    {
157        return (FloatRegIndex)(FLOATREG_XMM_BASE + 2 * index + 1);
158    }
159
160    static inline FloatRegIndex
161    FLOATREG_MICROFP(int index)
162    {
163        return (FloatRegIndex)(FLOATREG_MICROFP_BASE + index);
164    }
165
166    static inline FloatRegIndex
167    FLOATREG_STACK(int index, int top)
168    {
169        return FLOATREG_FPR((top + index + 8) % 8);
170    }
171};
172
173#endif // __ARCH_X86_FLOATREGS_HH__
174