types.hh (4181:6edaeff44647) types.hh (4182:5b2c0d266107)
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_TYPES_HH__
59#define __ARCH_X86_TYPES_HH__
60
61#include <inttypes.h>
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_TYPES_HH__
59#define __ARCH_X86_TYPES_HH__
60
61#include <inttypes.h>
62#include <iostream>
62
63namespace X86ISA
64{
65 //This really determines how many bytes are passed to the predecoder.
66 typedef uint64_t MachInst;
63
64namespace X86ISA
65{
66 //This really determines how many bytes are passed to the predecoder.
67 typedef uint64_t MachInst;
68
69 enum Prefixes {
70 NoOverride = 0,
71 CSOverride = 1,
72 DSOverride = 2,
73 ESOverride = 3,
74 FSOverride = 4,
75 GSOverride = 5,
76 SSOverride = 6,
77 //The Rex prefix obviously doesn't fit in with the above, but putting
78 //it here lets us save double the space the enums take up.
79 Rex = 7,
80 //There can be only one segment override, so they share the
81 //first 3 bits in the legacyPrefixes bitfield.
82 SegmentOverride = 0x7,
83 OperandSizeOverride = 8,
84 AddressSizeOverride = 16,
85 Lock = 32,
86 Rep = 64,
87 Repne = 128
88 };
89
67 //The intermediate structure the x86 predecoder returns.
68 struct ExtMachInst
69 {
90 //The intermediate structure the x86 predecoder returns.
91 struct ExtMachInst
92 {
70 //Empty for now...
93 public: //XXX These should be hidden in the future
94
95 uint8_t legacyPrefixes;
96 uint8_t rexPrefix;
97 bool twoByteOpcode;
98 uint8_t opcode;
99 uint64_t immediate;
100 uint64_t displacement;
101
102 public:
103
104 //These are to pacify the decoder for now. This will go away once
105 //it can handle non integer inputs, and in the mean time allow me to
106 //excercise the predecoder a little.
107 operator unsigned int()
108 {
109 return 0;
110 }
111
112 ExtMachInst(unsigned int)
113 {;}
114
115 ExtMachInst()
116 {;}
71 };
72
117 };
118
73 bool operator == (const ExtMachInst &emi1, const ExtMachInst &emi2)
119 inline static std::ostream &
120 operator << (std::ostream & os, const ExtMachInst & emi)
74 {
121 {
122 os << "{X86 ExtMachInst}";
123 return os;
124 }
125
126 inline static bool
127 operator == (const ExtMachInst &emi1, const ExtMachInst &emi2)
128 {
75 //Since this is empty, it's always equal
76 return true;
77 }
78
79 typedef uint64_t IntReg;
80 //XXX Should this be a 128 bit structure for XMM memory ops?
81 typedef uint64_t LargestRead;
82 typedef uint64_t MiscReg;
83
84 //These floating point types are correct for mmx, but not
85 //technically for x87 (80 bits) or at all for xmm (128 bits)
86 typedef double FloatReg;
87 typedef uint64_t FloatRegBits;
88 typedef union
89 {
90 IntReg intReg;
91 FloatReg fpReg;
92 MiscReg ctrlReg;
93 } AnyReg;
94
95 //XXX This is very hypothetical. X87 instructions would need to
96 //change their "context" constantly. It's also not clear how
97 //this would be handled as far as out of order execution.
98 //Maybe x87 instructions are in order?
99 enum RegContextParam
100 {
101 CONTEXT_X87_TOP
102 };
103
104 typedef int RegContextVal;
105
106 typedef uint8_t RegIndex;
107};
108
109#endif // __ARCH_X86_TYPES_HH__
129 //Since this is empty, it's always equal
130 return true;
131 }
132
133 typedef uint64_t IntReg;
134 //XXX Should this be a 128 bit structure for XMM memory ops?
135 typedef uint64_t LargestRead;
136 typedef uint64_t MiscReg;
137
138 //These floating point types are correct for mmx, but not
139 //technically for x87 (80 bits) or at all for xmm (128 bits)
140 typedef double FloatReg;
141 typedef uint64_t FloatRegBits;
142 typedef union
143 {
144 IntReg intReg;
145 FloatReg fpReg;
146 MiscReg ctrlReg;
147 } AnyReg;
148
149 //XXX This is very hypothetical. X87 instructions would need to
150 //change their "context" constantly. It's also not clear how
151 //this would be handled as far as out of order execution.
152 //Maybe x87 instructions are in order?
153 enum RegContextParam
154 {
155 CONTEXT_X87_TOP
156 };
157
158 typedef int RegContextVal;
159
160 typedef uint8_t RegIndex;
161};
162
163#endif // __ARCH_X86_TYPES_HH__