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Richard Smith89ee75d2014-04-20 21:07:34 +00001//===-- X86DisassemblerDecoderCommon.h - Disassembler decoder ---*- C++ -*-===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file is part of the X86 Disassembler.
11// It contains common definitions used by both the disassembler and the table
12// generator.
13// Documentation for the disassembler can be found in X86Disassembler.h.
14//
15//===----------------------------------------------------------------------===//
Sean Callanan04cc3072009-12-19 02:59:52 +000016
17#ifndef X86DISASSEMBLERDECODERCOMMON_H
18#define X86DISASSEMBLERDECODERCOMMON_H
19
Michael J. Spencer447762d2010-11-29 18:16:10 +000020#include "llvm/Support/DataTypes.h"
Sean Callanan04cc3072009-12-19 02:59:52 +000021
Richard Smith89ee75d2014-04-20 21:07:34 +000022namespace llvm {
23namespace X86Disassembler {
24
Sean Callanan04cc3072009-12-19 02:59:52 +000025#define INSTRUCTIONS_SYM x86DisassemblerInstrSpecifiers
26#define CONTEXTS_SYM x86DisassemblerContexts
27#define ONEBYTE_SYM x86DisassemblerOneByteOpcodes
28#define TWOBYTE_SYM x86DisassemblerTwoByteOpcodes
29#define THREEBYTE38_SYM x86DisassemblerThreeByte38Opcodes
30#define THREEBYTE3A_SYM x86DisassemblerThreeByte3AOpcodes
Craig Topper9e3e38a2013-10-03 05:17:48 +000031#define XOP8_MAP_SYM x86DisassemblerXOP8Opcodes
32#define XOP9_MAP_SYM x86DisassemblerXOP9Opcodes
33#define XOPA_MAP_SYM x86DisassemblerXOPAOpcodes
Sean Callanan04cc3072009-12-19 02:59:52 +000034
35#define INSTRUCTIONS_STR "x86DisassemblerInstrSpecifiers"
36#define CONTEXTS_STR "x86DisassemblerContexts"
37#define ONEBYTE_STR "x86DisassemblerOneByteOpcodes"
38#define TWOBYTE_STR "x86DisassemblerTwoByteOpcodes"
39#define THREEBYTE38_STR "x86DisassemblerThreeByte38Opcodes"
40#define THREEBYTE3A_STR "x86DisassemblerThreeByte3AOpcodes"
Craig Topper9e3e38a2013-10-03 05:17:48 +000041#define XOP8_MAP_STR "x86DisassemblerXOP8Opcodes"
42#define XOP9_MAP_STR "x86DisassemblerXOP9Opcodes"
43#define XOPA_MAP_STR "x86DisassemblerXOPAOpcodes"
Sean Callanan04cc3072009-12-19 02:59:52 +000044
Richard Smith6a6967e2014-04-20 22:10:16 +000045// Attributes of an instruction that must be known before the opcode can be
46// processed correctly. Most of these indicate the presence of particular
47// prefixes, but ATTR_64BIT is simply an attribute of the decoding context.
Elena Demikhovsky371e3632013-12-25 11:40:51 +000048#define ATTRIBUTE_BITS \
49 ENUM_ENTRY(ATTR_NONE, 0x00) \
50 ENUM_ENTRY(ATTR_64BIT, (0x1 << 0)) \
51 ENUM_ENTRY(ATTR_XS, (0x1 << 1)) \
52 ENUM_ENTRY(ATTR_XD, (0x1 << 2)) \
53 ENUM_ENTRY(ATTR_REXW, (0x1 << 3)) \
54 ENUM_ENTRY(ATTR_OPSIZE, (0x1 << 4)) \
55 ENUM_ENTRY(ATTR_ADSIZE, (0x1 << 5)) \
56 ENUM_ENTRY(ATTR_VEX, (0x1 << 6)) \
57 ENUM_ENTRY(ATTR_VEXL, (0x1 << 7)) \
58 ENUM_ENTRY(ATTR_EVEX, (0x1 << 8)) \
59 ENUM_ENTRY(ATTR_EVEXL, (0x1 << 9)) \
60 ENUM_ENTRY(ATTR_EVEXL2, (0x1 << 10)) \
61 ENUM_ENTRY(ATTR_EVEXK, (0x1 << 11)) \
62 ENUM_ENTRY(ATTR_EVEXKZ, (0x1 << 12)) \
63 ENUM_ENTRY(ATTR_EVEXB, (0x1 << 13))
Sean Callanan04cc3072009-12-19 02:59:52 +000064
65#define ENUM_ENTRY(n, v) n = v,
66enum attributeBits {
67 ATTRIBUTE_BITS
68 ATTR_max
69};
70#undef ENUM_ENTRY
71
Richard Smith6a6967e2014-04-20 22:10:16 +000072// Combinations of the above attributes that are relevant to instruction
73// decode. Although other combinations are possible, they can be reduced to
74// these without affecting the ultimately decoded instruction.
Sean Callanan04cc3072009-12-19 02:59:52 +000075
Richard Smith6a6967e2014-04-20 22:10:16 +000076// Class name Rank Rationale for rank assignment
Sean Callanan04cc3072009-12-19 02:59:52 +000077#define INSTRUCTION_CONTEXTS \
78 ENUM_ENTRY(IC, 0, "says nothing about the instruction") \
79 ENUM_ENTRY(IC_64BIT, 1, "says the instruction applies in " \
80 "64-bit mode but no more") \
81 ENUM_ENTRY(IC_OPSIZE, 3, "requires an OPSIZE prefix, so " \
82 "operands change width") \
Craig Topper6491c802012-02-27 01:54:29 +000083 ENUM_ENTRY(IC_ADSIZE, 3, "requires an ADSIZE prefix, so " \
84 "operands change width") \
Sean Callanan04cc3072009-12-19 02:59:52 +000085 ENUM_ENTRY(IC_XD, 2, "may say something about the opcode " \
86 "but not the operands") \
87 ENUM_ENTRY(IC_XS, 2, "may say something about the opcode " \
88 "but not the operands") \
Craig Topper88cb33e2011-10-01 19:54:56 +000089 ENUM_ENTRY(IC_XD_OPSIZE, 3, "requires an OPSIZE prefix, so " \
90 "operands change width") \
Craig Toppera6978522011-10-11 04:34:23 +000091 ENUM_ENTRY(IC_XS_OPSIZE, 3, "requires an OPSIZE prefix, so " \
92 "operands change width") \
Sean Callanan04cc3072009-12-19 02:59:52 +000093 ENUM_ENTRY(IC_64BIT_REXW, 4, "requires a REX.W prefix, so operands "\
94 "change width; overrides IC_OPSIZE") \
95 ENUM_ENTRY(IC_64BIT_OPSIZE, 3, "Just as meaningful as IC_OPSIZE") \
Craig Topper6491c802012-02-27 01:54:29 +000096 ENUM_ENTRY(IC_64BIT_ADSIZE, 3, "Just as meaningful as IC_ADSIZE") \
Sean Callanan04cc3072009-12-19 02:59:52 +000097 ENUM_ENTRY(IC_64BIT_XD, 5, "XD instructions are SSE; REX.W is " \
98 "secondary") \
99 ENUM_ENTRY(IC_64BIT_XS, 5, "Just as meaningful as IC_64BIT_XD") \
Craig Topper88cb33e2011-10-01 19:54:56 +0000100 ENUM_ENTRY(IC_64BIT_XD_OPSIZE, 3, "Just as meaningful as IC_XD_OPSIZE") \
Craig Toppera6978522011-10-11 04:34:23 +0000101 ENUM_ENTRY(IC_64BIT_XS_OPSIZE, 3, "Just as meaningful as IC_XS_OPSIZE") \
Sean Callanan04cc3072009-12-19 02:59:52 +0000102 ENUM_ENTRY(IC_64BIT_REXW_XS, 6, "OPSIZE could mean a different " \
103 "opcode") \
104 ENUM_ENTRY(IC_64BIT_REXW_XD, 6, "Just as meaningful as " \
105 "IC_64BIT_REXW_XS") \
106 ENUM_ENTRY(IC_64BIT_REXW_OPSIZE, 7, "The Dynamic Duo! Prefer over all " \
107 "else because this changes most " \
Sean Callananc3fd5232011-03-15 01:23:15 +0000108 "operands' meaning") \
109 ENUM_ENTRY(IC_VEX, 1, "requires a VEX prefix") \
110 ENUM_ENTRY(IC_VEX_XS, 2, "requires VEX and the XS prefix") \
111 ENUM_ENTRY(IC_VEX_XD, 2, "requires VEX and the XD prefix") \
112 ENUM_ENTRY(IC_VEX_OPSIZE, 2, "requires VEX and the OpSize prefix") \
113 ENUM_ENTRY(IC_VEX_W, 3, "requires VEX and the W prefix") \
114 ENUM_ENTRY(IC_VEX_W_XS, 4, "requires VEX, W, and XS prefix") \
115 ENUM_ENTRY(IC_VEX_W_XD, 4, "requires VEX, W, and XD prefix") \
116 ENUM_ENTRY(IC_VEX_W_OPSIZE, 4, "requires VEX, W, and OpSize") \
117 ENUM_ENTRY(IC_VEX_L, 3, "requires VEX and the L prefix") \
118 ENUM_ENTRY(IC_VEX_L_XS, 4, "requires VEX and the L and XS prefix")\
Craig Topperf18c8962011-10-04 06:30:42 +0000119 ENUM_ENTRY(IC_VEX_L_XD, 4, "requires VEX and the L and XD prefix")\
Craig Topperf01f1b52011-11-06 23:04:08 +0000120 ENUM_ENTRY(IC_VEX_L_OPSIZE, 4, "requires VEX, L, and OpSize") \
Craig Toppered59dd32013-09-30 02:46:36 +0000121 ENUM_ENTRY(IC_VEX_L_W, 4, "requires VEX, L and W") \
122 ENUM_ENTRY(IC_VEX_L_W_XS, 5, "requires VEX, L, W and XS prefix") \
123 ENUM_ENTRY(IC_VEX_L_W_XD, 5, "requires VEX, L, W and XD prefix") \
124 ENUM_ENTRY(IC_VEX_L_W_OPSIZE, 5, "requires VEX, L, W and OpSize") \
Elena Demikhovsky003e7d72013-07-28 08:28:38 +0000125 ENUM_ENTRY(IC_EVEX, 1, "requires an EVEX prefix") \
126 ENUM_ENTRY(IC_EVEX_XS, 2, "requires EVEX and the XS prefix") \
127 ENUM_ENTRY(IC_EVEX_XD, 2, "requires EVEX and the XD prefix") \
128 ENUM_ENTRY(IC_EVEX_OPSIZE, 2, "requires EVEX and the OpSize prefix") \
129 ENUM_ENTRY(IC_EVEX_W, 3, "requires EVEX and the W prefix") \
130 ENUM_ENTRY(IC_EVEX_W_XS, 4, "requires EVEX, W, and XS prefix") \
131 ENUM_ENTRY(IC_EVEX_W_XD, 4, "requires EVEX, W, and XD prefix") \
132 ENUM_ENTRY(IC_EVEX_W_OPSIZE, 4, "requires EVEX, W, and OpSize") \
133 ENUM_ENTRY(IC_EVEX_L, 3, "requires EVEX and the L prefix") \
134 ENUM_ENTRY(IC_EVEX_L_XS, 4, "requires EVEX and the L and XS prefix")\
135 ENUM_ENTRY(IC_EVEX_L_XD, 4, "requires EVEX and the L and XD prefix")\
136 ENUM_ENTRY(IC_EVEX_L_OPSIZE, 4, "requires EVEX, L, and OpSize") \
137 ENUM_ENTRY(IC_EVEX_L_W, 3, "requires EVEX, L and W") \
138 ENUM_ENTRY(IC_EVEX_L_W_XS, 4, "requires EVEX, L, W and XS prefix") \
139 ENUM_ENTRY(IC_EVEX_L_W_XD, 4, "requires EVEX, L, W and XD prefix") \
140 ENUM_ENTRY(IC_EVEX_L_W_OPSIZE, 4, "requires EVEX, L, W and OpSize") \
141 ENUM_ENTRY(IC_EVEX_L2, 3, "requires EVEX and the L2 prefix") \
142 ENUM_ENTRY(IC_EVEX_L2_XS, 4, "requires EVEX and the L2 and XS prefix")\
143 ENUM_ENTRY(IC_EVEX_L2_XD, 4, "requires EVEX and the L2 and XD prefix")\
144 ENUM_ENTRY(IC_EVEX_L2_OPSIZE, 4, "requires EVEX, L2, and OpSize") \
145 ENUM_ENTRY(IC_EVEX_L2_W, 3, "requires EVEX, L2 and W") \
146 ENUM_ENTRY(IC_EVEX_L2_W_XS, 4, "requires EVEX, L2, W and XS prefix") \
147 ENUM_ENTRY(IC_EVEX_L2_W_XD, 4, "requires EVEX, L2, W and XD prefix") \
148 ENUM_ENTRY(IC_EVEX_L2_W_OPSIZE, 4, "requires EVEX, L2, W and OpSize") \
149 ENUM_ENTRY(IC_EVEX_K, 1, "requires an EVEX_K prefix") \
150 ENUM_ENTRY(IC_EVEX_XS_K, 2, "requires EVEX_K and the XS prefix") \
151 ENUM_ENTRY(IC_EVEX_XD_K, 2, "requires EVEX_K and the XD prefix") \
152 ENUM_ENTRY(IC_EVEX_OPSIZE_K, 2, "requires EVEX_K and the OpSize prefix") \
153 ENUM_ENTRY(IC_EVEX_W_K, 3, "requires EVEX_K and the W prefix") \
154 ENUM_ENTRY(IC_EVEX_W_XS_K, 4, "requires EVEX_K, W, and XS prefix") \
155 ENUM_ENTRY(IC_EVEX_W_XD_K, 4, "requires EVEX_K, W, and XD prefix") \
156 ENUM_ENTRY(IC_EVEX_W_OPSIZE_K, 4, "requires EVEX_K, W, and OpSize") \
157 ENUM_ENTRY(IC_EVEX_L_K, 3, "requires EVEX_K and the L prefix") \
158 ENUM_ENTRY(IC_EVEX_L_XS_K, 4, "requires EVEX_K and the L and XS prefix")\
159 ENUM_ENTRY(IC_EVEX_L_XD_K, 4, "requires EVEX_K and the L and XD prefix")\
160 ENUM_ENTRY(IC_EVEX_L_OPSIZE_K, 4, "requires EVEX_K, L, and OpSize") \
161 ENUM_ENTRY(IC_EVEX_L_W_K, 3, "requires EVEX_K, L and W") \
162 ENUM_ENTRY(IC_EVEX_L_W_XS_K, 4, "requires EVEX_K, L, W and XS prefix") \
163 ENUM_ENTRY(IC_EVEX_L_W_XD_K, 4, "requires EVEX_K, L, W and XD prefix") \
164 ENUM_ENTRY(IC_EVEX_L_W_OPSIZE_K, 4, "requires EVEX_K, L, W and OpSize") \
165 ENUM_ENTRY(IC_EVEX_L2_K, 3, "requires EVEX_K and the L2 prefix") \
166 ENUM_ENTRY(IC_EVEX_L2_XS_K, 4, "requires EVEX_K and the L2 and XS prefix")\
167 ENUM_ENTRY(IC_EVEX_L2_XD_K, 4, "requires EVEX_K and the L2 and XD prefix")\
168 ENUM_ENTRY(IC_EVEX_L2_OPSIZE_K, 4, "requires EVEX_K, L2, and OpSize") \
169 ENUM_ENTRY(IC_EVEX_L2_W_K, 3, "requires EVEX_K, L2 and W") \
170 ENUM_ENTRY(IC_EVEX_L2_W_XS_K, 4, "requires EVEX_K, L2, W and XS prefix") \
171 ENUM_ENTRY(IC_EVEX_L2_W_XD_K, 4, "requires EVEX_K, L2, W and XD prefix") \
172 ENUM_ENTRY(IC_EVEX_L2_W_OPSIZE_K, 4, "requires EVEX_K, L2, W and OpSize") \
173 ENUM_ENTRY(IC_EVEX_B, 1, "requires an EVEX_B prefix") \
174 ENUM_ENTRY(IC_EVEX_XS_B, 2, "requires EVEX_B and the XS prefix") \
175 ENUM_ENTRY(IC_EVEX_XD_B, 2, "requires EVEX_B and the XD prefix") \
176 ENUM_ENTRY(IC_EVEX_OPSIZE_B, 2, "requires EVEX_B and the OpSize prefix") \
177 ENUM_ENTRY(IC_EVEX_W_B, 3, "requires EVEX_B and the W prefix") \
178 ENUM_ENTRY(IC_EVEX_W_XS_B, 4, "requires EVEX_B, W, and XS prefix") \
179 ENUM_ENTRY(IC_EVEX_W_XD_B, 4, "requires EVEX_B, W, and XD prefix") \
180 ENUM_ENTRY(IC_EVEX_W_OPSIZE_B, 4, "requires EVEX_B, W, and OpSize") \
181 ENUM_ENTRY(IC_EVEX_L_B, 3, "requires EVEX_B and the L prefix") \
182 ENUM_ENTRY(IC_EVEX_L_XS_B, 4, "requires EVEX_B and the L and XS prefix")\
183 ENUM_ENTRY(IC_EVEX_L_XD_B, 4, "requires EVEX_B and the L and XD prefix")\
184 ENUM_ENTRY(IC_EVEX_L_OPSIZE_B, 4, "requires EVEX_B, L, and OpSize") \
185 ENUM_ENTRY(IC_EVEX_L_W_B, 3, "requires EVEX_B, L and W") \
186 ENUM_ENTRY(IC_EVEX_L_W_XS_B, 4, "requires EVEX_B, L, W and XS prefix") \
187 ENUM_ENTRY(IC_EVEX_L_W_XD_B, 4, "requires EVEX_B, L, W and XD prefix") \
188 ENUM_ENTRY(IC_EVEX_L_W_OPSIZE_B, 4, "requires EVEX_B, L, W and OpSize") \
189 ENUM_ENTRY(IC_EVEX_L2_B, 3, "requires EVEX_B and the L2 prefix") \
190 ENUM_ENTRY(IC_EVEX_L2_XS_B, 4, "requires EVEX_B and the L2 and XS prefix")\
191 ENUM_ENTRY(IC_EVEX_L2_XD_B, 4, "requires EVEX_B and the L2 and XD prefix")\
192 ENUM_ENTRY(IC_EVEX_L2_OPSIZE_B, 4, "requires EVEX_B, L2, and OpSize") \
193 ENUM_ENTRY(IC_EVEX_L2_W_B, 3, "requires EVEX_B, L2 and W") \
194 ENUM_ENTRY(IC_EVEX_L2_W_XS_B, 4, "requires EVEX_B, L2, W and XS prefix") \
195 ENUM_ENTRY(IC_EVEX_L2_W_XD_B, 4, "requires EVEX_B, L2, W and XD prefix") \
196 ENUM_ENTRY(IC_EVEX_L2_W_OPSIZE_B, 4, "requires EVEX_B, L2, W and OpSize") \
Elena Demikhovsky371e3632013-12-25 11:40:51 +0000197 ENUM_ENTRY(IC_EVEX_K_B, 1, "requires EVEX_B and EVEX_K prefix") \
198 ENUM_ENTRY(IC_EVEX_XS_K_B, 2, "requires EVEX_B, EVEX_K and the XS prefix") \
199 ENUM_ENTRY(IC_EVEX_XD_K_B, 2, "requires EVEX_B, EVEX_K and the XD prefix") \
200 ENUM_ENTRY(IC_EVEX_OPSIZE_K_B, 2, "requires EVEX_B, EVEX_K and the OpSize prefix") \
201 ENUM_ENTRY(IC_EVEX_W_K_B, 3, "requires EVEX_B, EVEX_K and the W prefix") \
202 ENUM_ENTRY(IC_EVEX_W_XS_K_B, 4, "requires EVEX_B, EVEX_K, W, and XS prefix") \
203 ENUM_ENTRY(IC_EVEX_W_XD_K_B, 4, "requires EVEX_B, EVEX_K, W, and XD prefix") \
204 ENUM_ENTRY(IC_EVEX_W_OPSIZE_K_B, 4, "requires EVEX_B, EVEX_K, W, and OpSize") \
205 ENUM_ENTRY(IC_EVEX_L_K_B, 3, "requires EVEX_B, EVEX_K and the L prefix") \
206 ENUM_ENTRY(IC_EVEX_L_XS_K_B, 4, "requires EVEX_B, EVEX_K and the L and XS prefix")\
207 ENUM_ENTRY(IC_EVEX_L_XD_K_B, 4, "requires EVEX_B, EVEX_K and the L and XD prefix")\
208 ENUM_ENTRY(IC_EVEX_L_OPSIZE_K_B, 4, "requires EVEX_B, EVEX_K, L, and OpSize") \
209 ENUM_ENTRY(IC_EVEX_L_W_K_B, 3, "requires EVEX_B, EVEX_K, L and W") \
210 ENUM_ENTRY(IC_EVEX_L_W_XS_K_B, 4, "requires EVEX_B, EVEX_K, L, W and XS prefix") \
211 ENUM_ENTRY(IC_EVEX_L_W_XD_K_B, 4, "requires EVEX_B, EVEX_K, L, W and XD prefix") \
212 ENUM_ENTRY(IC_EVEX_L_W_OPSIZE_K_B,4, "requires EVEX_B, EVEX_K, L, W and OpSize") \
213 ENUM_ENTRY(IC_EVEX_L2_K_B, 3, "requires EVEX_B, EVEX_K and the L2 prefix") \
214 ENUM_ENTRY(IC_EVEX_L2_XS_K_B, 4, "requires EVEX_B, EVEX_K and the L2 and XS prefix")\
215 ENUM_ENTRY(IC_EVEX_L2_XD_K_B, 4, "requires EVEX_B, EVEX_K and the L2 and XD prefix")\
216 ENUM_ENTRY(IC_EVEX_L2_OPSIZE_K_B, 4, "requires EVEX_B, EVEX_K, L2, and OpSize") \
217 ENUM_ENTRY(IC_EVEX_L2_W_K_B, 3, "requires EVEX_B, EVEX_K, L2 and W") \
218 ENUM_ENTRY(IC_EVEX_L2_W_XS_K_B, 4, "requires EVEX_B, EVEX_K, L2, W and XS prefix") \
219 ENUM_ENTRY(IC_EVEX_L2_W_XD_K_B, 4, "requires EVEX_B, EVEX_K, L2, W and XD prefix") \
220 ENUM_ENTRY(IC_EVEX_L2_W_OPSIZE_K_B,4, "requires EVEX_B, EVEX_K, L2, W and OpSize") \
221 ENUM_ENTRY(IC_EVEX_KZ_B, 1, "requires EVEX_B and EVEX_KZ prefix") \
222 ENUM_ENTRY(IC_EVEX_XS_KZ_B, 2, "requires EVEX_B, EVEX_KZ and the XS prefix") \
223 ENUM_ENTRY(IC_EVEX_XD_KZ_B, 2, "requires EVEX_B, EVEX_KZ and the XD prefix") \
224 ENUM_ENTRY(IC_EVEX_OPSIZE_KZ_B, 2, "requires EVEX_B, EVEX_KZ and the OpSize prefix") \
225 ENUM_ENTRY(IC_EVEX_W_KZ_B, 3, "requires EVEX_B, EVEX_KZ and the W prefix") \
226 ENUM_ENTRY(IC_EVEX_W_XS_KZ_B, 4, "requires EVEX_B, EVEX_KZ, W, and XS prefix") \
227 ENUM_ENTRY(IC_EVEX_W_XD_KZ_B, 4, "requires EVEX_B, EVEX_KZ, W, and XD prefix") \
228 ENUM_ENTRY(IC_EVEX_W_OPSIZE_KZ_B, 4, "requires EVEX_B, EVEX_KZ, W, and OpSize") \
Elena Demikhovskydacddb02013-11-03 13:46:31 +0000229 ENUM_ENTRY(IC_EVEX_L_KZ_B, 3, "requires EVEX_B, EVEX_KZ and the L prefix") \
230 ENUM_ENTRY(IC_EVEX_L_XS_KZ_B, 4, "requires EVEX_B, EVEX_KZ and the L and XS prefix")\
231 ENUM_ENTRY(IC_EVEX_L_XD_KZ_B, 4, "requires EVEX_B, EVEX_KZ and the L and XD prefix")\
232 ENUM_ENTRY(IC_EVEX_L_OPSIZE_KZ_B, 4, "requires EVEX_B, EVEX_KZ, L, and OpSize") \
233 ENUM_ENTRY(IC_EVEX_L_W_KZ_B, 3, "requires EVEX_B, EVEX_KZ, L and W") \
234 ENUM_ENTRY(IC_EVEX_L_W_XS_KZ_B, 4, "requires EVEX_B, EVEX_KZ, L, W and XS prefix") \
235 ENUM_ENTRY(IC_EVEX_L_W_XD_KZ_B, 4, "requires EVEX_B, EVEX_KZ, L, W and XD prefix") \
236 ENUM_ENTRY(IC_EVEX_L_W_OPSIZE_KZ_B, 4, "requires EVEX_B, EVEX_KZ, L, W and OpSize") \
237 ENUM_ENTRY(IC_EVEX_L2_KZ_B, 3, "requires EVEX_B, EVEX_KZ and the L2 prefix") \
238 ENUM_ENTRY(IC_EVEX_L2_XS_KZ_B, 4, "requires EVEX_B, EVEX_KZ and the L2 and XS prefix")\
239 ENUM_ENTRY(IC_EVEX_L2_XD_KZ_B, 4, "requires EVEX_B, EVEX_KZ and the L2 and XD prefix")\
240 ENUM_ENTRY(IC_EVEX_L2_OPSIZE_KZ_B, 4, "requires EVEX_B, EVEX_KZ, L2, and OpSize") \
241 ENUM_ENTRY(IC_EVEX_L2_W_KZ_B, 3, "requires EVEX_B, EVEX_KZ, L2 and W") \
242 ENUM_ENTRY(IC_EVEX_L2_W_XS_KZ_B, 4, "requires EVEX_B, EVEX_KZ, L2, W and XS prefix") \
243 ENUM_ENTRY(IC_EVEX_L2_W_XD_KZ_B, 4, "requires EVEX_B, EVEX_KZ, L2, W and XD prefix") \
244 ENUM_ENTRY(IC_EVEX_L2_W_OPSIZE_KZ_B, 4, "requires EVEX_B, EVEX_KZ, L2, W and OpSize") \
245 ENUM_ENTRY(IC_EVEX_KZ, 1, "requires an EVEX_KZ prefix") \
246 ENUM_ENTRY(IC_EVEX_XS_KZ, 2, "requires EVEX_KZ and the XS prefix") \
247 ENUM_ENTRY(IC_EVEX_XD_KZ, 2, "requires EVEX_KZ and the XD prefix") \
248 ENUM_ENTRY(IC_EVEX_OPSIZE_KZ, 2, "requires EVEX_KZ and the OpSize prefix") \
249 ENUM_ENTRY(IC_EVEX_W_KZ, 3, "requires EVEX_KZ and the W prefix") \
250 ENUM_ENTRY(IC_EVEX_W_XS_KZ, 4, "requires EVEX_KZ, W, and XS prefix") \
251 ENUM_ENTRY(IC_EVEX_W_XD_KZ, 4, "requires EVEX_KZ, W, and XD prefix") \
252 ENUM_ENTRY(IC_EVEX_W_OPSIZE_KZ, 4, "requires EVEX_KZ, W, and OpSize") \
253 ENUM_ENTRY(IC_EVEX_L_KZ, 3, "requires EVEX_KZ and the L prefix") \
254 ENUM_ENTRY(IC_EVEX_L_XS_KZ, 4, "requires EVEX_KZ and the L and XS prefix")\
255 ENUM_ENTRY(IC_EVEX_L_XD_KZ, 4, "requires EVEX_KZ and the L and XD prefix")\
256 ENUM_ENTRY(IC_EVEX_L_OPSIZE_KZ, 4, "requires EVEX_KZ, L, and OpSize") \
257 ENUM_ENTRY(IC_EVEX_L_W_KZ, 3, "requires EVEX_KZ, L and W") \
258 ENUM_ENTRY(IC_EVEX_L_W_XS_KZ, 4, "requires EVEX_KZ, L, W and XS prefix") \
259 ENUM_ENTRY(IC_EVEX_L_W_XD_KZ, 4, "requires EVEX_KZ, L, W and XD prefix") \
260 ENUM_ENTRY(IC_EVEX_L_W_OPSIZE_KZ, 4, "requires EVEX_KZ, L, W and OpSize") \
261 ENUM_ENTRY(IC_EVEX_L2_KZ, 3, "requires EVEX_KZ and the L2 prefix") \
262 ENUM_ENTRY(IC_EVEX_L2_XS_KZ, 4, "requires EVEX_KZ and the L2 and XS prefix")\
263 ENUM_ENTRY(IC_EVEX_L2_XD_KZ, 4, "requires EVEX_KZ and the L2 and XD prefix")\
264 ENUM_ENTRY(IC_EVEX_L2_OPSIZE_KZ, 4, "requires EVEX_KZ, L2, and OpSize") \
265 ENUM_ENTRY(IC_EVEX_L2_W_KZ, 3, "requires EVEX_KZ, L2 and W") \
266 ENUM_ENTRY(IC_EVEX_L2_W_XS_KZ, 4, "requires EVEX_KZ, L2, W and XS prefix") \
267 ENUM_ENTRY(IC_EVEX_L2_W_XD_KZ, 4, "requires EVEX_KZ, L2, W and XD prefix") \
Robert Khasanovbfa01312014-07-21 14:54:21 +0000268 ENUM_ENTRY(IC_EVEX_L2_W_OPSIZE_KZ, 4, "requires EVEX_KZ, L2, W and OpSize")
Sean Callanan04cc3072009-12-19 02:59:52 +0000269
Craig Topper5f33d902012-07-31 04:38:27 +0000270#define ENUM_ENTRY(n, r, d) n,
Richard Smith89ee75d2014-04-20 21:07:34 +0000271enum InstructionContext {
Sean Callanan04cc3072009-12-19 02:59:52 +0000272 INSTRUCTION_CONTEXTS
273 IC_max
Richard Smith89ee75d2014-04-20 21:07:34 +0000274};
Sean Callanan04cc3072009-12-19 02:59:52 +0000275#undef ENUM_ENTRY
276
Richard Smith6a6967e2014-04-20 22:10:16 +0000277// Opcode types, which determine which decode table to use, both in the Intel
278// manual and also for the decoder.
Richard Smith89ee75d2014-04-20 21:07:34 +0000279enum OpcodeType {
Sean Callanan04cc3072009-12-19 02:59:52 +0000280 ONEBYTE = 0,
281 TWOBYTE = 1,
282 THREEBYTE_38 = 2,
Joerg Sonnenbergerfc4789d2011-04-04 16:58:13 +0000283 THREEBYTE_3A = 3,
Craig Topper0d1fd552014-02-19 05:34:21 +0000284 XOP8_MAP = 4,
285 XOP9_MAP = 5,
286 XOPA_MAP = 6
Richard Smith89ee75d2014-04-20 21:07:34 +0000287};
Sean Callanan04cc3072009-12-19 02:59:52 +0000288
Richard Smith6a6967e2014-04-20 22:10:16 +0000289// The following structs are used for the hierarchical decode table. After
290// determining the instruction's class (i.e., which IC_* constant applies to
291// it), the decoder reads the opcode. Some instructions require specific
292// values of the ModR/M byte, so the ModR/M byte indexes into the final table.
293//
294// If a ModR/M byte is not required, "required" is left unset, and the values
295// for each instructionID are identical.
Sean Callanan04cc3072009-12-19 02:59:52 +0000296typedef uint16_t InstrUID;
297
Richard Smith6a6967e2014-04-20 22:10:16 +0000298// ModRMDecisionType - describes the type of ModR/M decision, allowing the
299// consumer to determine the number of entries in it.
300//
301// MODRM_ONEENTRY - No matter what the value of the ModR/M byte is, the decoded
302// instruction is the same.
303// MODRM_SPLITRM - If the ModR/M byte is between 0x00 and 0xbf, the opcode
304// corresponds to one instruction; otherwise, it corresponds to
305// a different instruction.
306// MODRM_SPLITMISC- If the ModR/M byte is between 0x00 and 0xbf, ModR/M byte
307// divided by 8 is used to select instruction; otherwise, each
308// value of the ModR/M byte could correspond to a different
309// instruction.
310// MODRM_SPLITREG - ModR/M byte divided by 8 is used to select instruction. This
311// corresponds to instructions that use reg field as opcode
312// MODRM_FULL - Potentially, each value of the ModR/M byte could correspond
313// to a different instruction.
Sean Callanan04cc3072009-12-19 02:59:52 +0000314#define MODRMTYPES \
315 ENUM_ENTRY(MODRM_ONEENTRY) \
316 ENUM_ENTRY(MODRM_SPLITRM) \
Craig Topper963305b2012-09-13 05:45:42 +0000317 ENUM_ENTRY(MODRM_SPLITMISC) \
Craig Toppera0cd9702012-02-09 08:58:07 +0000318 ENUM_ENTRY(MODRM_SPLITREG) \
Sean Callanan04cc3072009-12-19 02:59:52 +0000319 ENUM_ENTRY(MODRM_FULL)
320
Craig Topper5f33d902012-07-31 04:38:27 +0000321#define ENUM_ENTRY(n) n,
Richard Smith89ee75d2014-04-20 21:07:34 +0000322enum ModRMDecisionType {
Sean Callanan04cc3072009-12-19 02:59:52 +0000323 MODRMTYPES
324 MODRM_max
Richard Smith89ee75d2014-04-20 21:07:34 +0000325};
Sean Callanan04cc3072009-12-19 02:59:52 +0000326#undef ENUM_ENTRY
327
Adam Nemet5933c2f2014-07-17 17:04:56 +0000328#define CASE_ENCODING_RM \
329 case ENCODING_RM: \
330 case ENCODING_RM_CD2: \
331 case ENCODING_RM_CD4: \
332 case ENCODING_RM_CD8: \
333 case ENCODING_RM_CD16: \
334 case ENCODING_RM_CD32: \
335 case ENCODING_RM_CD64
336
Richard Smith6a6967e2014-04-20 22:10:16 +0000337// Physical encodings of instruction operands.
Sean Callanan04cc3072009-12-19 02:59:52 +0000338#define ENCODINGS \
339 ENUM_ENTRY(ENCODING_NONE, "") \
340 ENUM_ENTRY(ENCODING_REG, "Register operand in ModR/M byte.") \
341 ENUM_ENTRY(ENCODING_RM, "R/M operand in ModR/M byte.") \
Adam Nemet5933c2f2014-07-17 17:04:56 +0000342 ENUM_ENTRY(ENCODING_RM_CD2, "R/M operand with CDisp scaling of 2") \
343 ENUM_ENTRY(ENCODING_RM_CD4, "R/M operand with CDisp scaling of 4") \
344 ENUM_ENTRY(ENCODING_RM_CD8, "R/M operand with CDisp scaling of 8") \
345 ENUM_ENTRY(ENCODING_RM_CD16,"R/M operand with CDisp scaling of 16") \
346 ENUM_ENTRY(ENCODING_RM_CD32,"R/M operand with CDisp scaling of 32") \
347 ENUM_ENTRY(ENCODING_RM_CD64,"R/M operand with CDisp scaling of 64") \
Sean Callananc3fd5232011-03-15 01:23:15 +0000348 ENUM_ENTRY(ENCODING_VVVV, "Register operand in VEX.vvvv byte.") \
Elena Demikhovsky003e7d72013-07-28 08:28:38 +0000349 ENUM_ENTRY(ENCODING_WRITEMASK, "Register operand in EVEX.aaa byte.") \
Sean Callanan04cc3072009-12-19 02:59:52 +0000350 ENUM_ENTRY(ENCODING_CB, "1-byte code offset (possible new CS value)") \
351 ENUM_ENTRY(ENCODING_CW, "2-byte") \
352 ENUM_ENTRY(ENCODING_CD, "4-byte") \
353 ENUM_ENTRY(ENCODING_CP, "6-byte") \
354 ENUM_ENTRY(ENCODING_CO, "8-byte") \
355 ENUM_ENTRY(ENCODING_CT, "10-byte") \
356 ENUM_ENTRY(ENCODING_IB, "1-byte immediate") \
357 ENUM_ENTRY(ENCODING_IW, "2-byte") \
358 ENUM_ENTRY(ENCODING_ID, "4-byte") \
359 ENUM_ENTRY(ENCODING_IO, "8-byte") \
360 ENUM_ENTRY(ENCODING_RB, "(AL..DIL, R8L..R15L) Register code added to " \
361 "the opcode byte") \
362 ENUM_ENTRY(ENCODING_RW, "(AX..DI, R8W..R15W)") \
363 ENUM_ENTRY(ENCODING_RD, "(EAX..EDI, R8D..R15D)") \
364 ENUM_ENTRY(ENCODING_RO, "(RAX..RDI, R8..R15)") \
Craig Topper623b0d62014-01-01 14:22:37 +0000365 ENUM_ENTRY(ENCODING_FP, "Position on floating-point stack in ModR/M " \
366 "byte.") \
Sean Callanan04cc3072009-12-19 02:59:52 +0000367 \
368 ENUM_ENTRY(ENCODING_Iv, "Immediate of operand size") \
369 ENUM_ENTRY(ENCODING_Ia, "Immediate of address size") \
370 ENUM_ENTRY(ENCODING_Rv, "Register code of operand size added to the " \
371 "opcode byte") \
372 ENUM_ENTRY(ENCODING_DUP, "Duplicate of another operand; ID is encoded " \
David Woodhouse2ef8d9c2014-01-22 15:08:08 +0000373 "in type") \
David Woodhouseb33c2ef2014-01-22 15:08:21 +0000374 ENUM_ENTRY(ENCODING_SI, "Source index; encoded in OpSize/Adsize prefix") \
375 ENUM_ENTRY(ENCODING_DI, "Destination index; encoded in prefixes")
Sean Callanan04cc3072009-12-19 02:59:52 +0000376
Craig Topper5f33d902012-07-31 04:38:27 +0000377#define ENUM_ENTRY(n, d) n,
Richard Smith89ee75d2014-04-20 21:07:34 +0000378enum OperandEncoding {
379 ENCODINGS
380 ENCODING_max
381};
Sean Callanan04cc3072009-12-19 02:59:52 +0000382#undef ENUM_ENTRY
383
Richard Smith6a6967e2014-04-20 22:10:16 +0000384// Semantic interpretations of instruction operands.
Sean Callanan04cc3072009-12-19 02:59:52 +0000385#define TYPES \
386 ENUM_ENTRY(TYPE_NONE, "") \
387 ENUM_ENTRY(TYPE_REL8, "1-byte immediate address") \
388 ENUM_ENTRY(TYPE_REL16, "2-byte") \
389 ENUM_ENTRY(TYPE_REL32, "4-byte") \
390 ENUM_ENTRY(TYPE_REL64, "8-byte") \
391 ENUM_ENTRY(TYPE_PTR1616, "2+2-byte segment+offset address") \
392 ENUM_ENTRY(TYPE_PTR1632, "2+4-byte") \
393 ENUM_ENTRY(TYPE_PTR1664, "2+8-byte") \
394 ENUM_ENTRY(TYPE_R8, "1-byte register operand") \
395 ENUM_ENTRY(TYPE_R16, "2-byte") \
396 ENUM_ENTRY(TYPE_R32, "4-byte") \
397 ENUM_ENTRY(TYPE_R64, "8-byte") \
398 ENUM_ENTRY(TYPE_IMM8, "1-byte immediate operand") \
399 ENUM_ENTRY(TYPE_IMM16, "2-byte") \
400 ENUM_ENTRY(TYPE_IMM32, "4-byte") \
401 ENUM_ENTRY(TYPE_IMM64, "8-byte") \
Sean Callanan1efe6612010-04-07 21:42:19 +0000402 ENUM_ENTRY(TYPE_IMM3, "1-byte immediate operand between 0 and 7") \
Craig Topper7629d632012-04-03 05:20:24 +0000403 ENUM_ENTRY(TYPE_IMM5, "1-byte immediate operand between 0 and 31") \
Sean Callanan04cc3072009-12-19 02:59:52 +0000404 ENUM_ENTRY(TYPE_RM8, "1-byte register or memory operand") \
405 ENUM_ENTRY(TYPE_RM16, "2-byte") \
406 ENUM_ENTRY(TYPE_RM32, "4-byte") \
407 ENUM_ENTRY(TYPE_RM64, "8-byte") \
408 ENUM_ENTRY(TYPE_M, "Memory operand") \
409 ENUM_ENTRY(TYPE_M8, "1-byte") \
410 ENUM_ENTRY(TYPE_M16, "2-byte") \
411 ENUM_ENTRY(TYPE_M32, "4-byte") \
412 ENUM_ENTRY(TYPE_M64, "8-byte") \
Sean Callanan36eab802009-12-22 21:12:55 +0000413 ENUM_ENTRY(TYPE_LEA, "Effective address") \
Sean Callanan04cc3072009-12-19 02:59:52 +0000414 ENUM_ENTRY(TYPE_M128, "16-byte (SSE/SSE2)") \
Chris Lattnerf60062f2010-09-29 02:57:56 +0000415 ENUM_ENTRY(TYPE_M256, "256-byte (AVX)") \
Sean Callanan04cc3072009-12-19 02:59:52 +0000416 ENUM_ENTRY(TYPE_M1616, "2+2-byte segment+offset address") \
417 ENUM_ENTRY(TYPE_M1632, "2+4-byte") \
418 ENUM_ENTRY(TYPE_M1664, "2+8-byte") \
419 ENUM_ENTRY(TYPE_M16_32, "2+4-byte two-part memory operand (LIDT, LGDT)") \
420 ENUM_ENTRY(TYPE_M16_16, "2+2-byte (BOUND)") \
421 ENUM_ENTRY(TYPE_M32_32, "4+4-byte (BOUND)") \
422 ENUM_ENTRY(TYPE_M16_64, "2+8-byte (LIDT, LGDT)") \
David Woodhouse2ef8d9c2014-01-22 15:08:08 +0000423 ENUM_ENTRY(TYPE_SRCIDX8, "1-byte memory at source index") \
424 ENUM_ENTRY(TYPE_SRCIDX16, "2-byte memory at source index") \
425 ENUM_ENTRY(TYPE_SRCIDX32, "4-byte memory at source index") \
426 ENUM_ENTRY(TYPE_SRCIDX64, "8-byte memory at source index") \
David Woodhouseb33c2ef2014-01-22 15:08:21 +0000427 ENUM_ENTRY(TYPE_DSTIDX8, "1-byte memory at destination index") \
428 ENUM_ENTRY(TYPE_DSTIDX16, "2-byte memory at destination index") \
429 ENUM_ENTRY(TYPE_DSTIDX32, "4-byte memory at destination index") \
430 ENUM_ENTRY(TYPE_DSTIDX64, "8-byte memory at destination index") \
Sean Callanan04cc3072009-12-19 02:59:52 +0000431 ENUM_ENTRY(TYPE_MOFFS8, "1-byte memory offset (relative to segment " \
432 "base)") \
433 ENUM_ENTRY(TYPE_MOFFS16, "2-byte") \
434 ENUM_ENTRY(TYPE_MOFFS32, "4-byte") \
435 ENUM_ENTRY(TYPE_MOFFS64, "8-byte") \
436 ENUM_ENTRY(TYPE_SREG, "Byte with single bit set: 0 = ES, 1 = CS, " \
437 "2 = SS, 3 = DS, 4 = FS, 5 = GS") \
438 ENUM_ENTRY(TYPE_M32FP, "32-bit IEE754 memory floating-point operand") \
439 ENUM_ENTRY(TYPE_M64FP, "64-bit") \
440 ENUM_ENTRY(TYPE_M80FP, "80-bit extended") \
441 ENUM_ENTRY(TYPE_M16INT, "2-byte memory integer operand for use in " \
442 "floating-point instructions") \
443 ENUM_ENTRY(TYPE_M32INT, "4-byte") \
444 ENUM_ENTRY(TYPE_M64INT, "8-byte") \
445 ENUM_ENTRY(TYPE_ST, "Position on the floating-point stack") \
446 ENUM_ENTRY(TYPE_MM, "MMX register operand") \
447 ENUM_ENTRY(TYPE_MM32, "4-byte MMX register or memory operand") \
448 ENUM_ENTRY(TYPE_MM64, "8-byte") \
449 ENUM_ENTRY(TYPE_XMM, "XMM register operand") \
450 ENUM_ENTRY(TYPE_XMM32, "4-byte XMM register or memory operand") \
451 ENUM_ENTRY(TYPE_XMM64, "8-byte") \
452 ENUM_ENTRY(TYPE_XMM128, "16-byte") \
Sean Callananc3fd5232011-03-15 01:23:15 +0000453 ENUM_ENTRY(TYPE_XMM256, "32-byte") \
Elena Demikhovsky003e7d72013-07-28 08:28:38 +0000454 ENUM_ENTRY(TYPE_XMM512, "64-byte") \
Elena Demikhovsky47fc44e2013-12-16 13:52:35 +0000455 ENUM_ENTRY(TYPE_VK1, "1-bit") \
Robert Khasanovbfa01312014-07-21 14:54:21 +0000456 ENUM_ENTRY(TYPE_VK2, "2-bit") \
457 ENUM_ENTRY(TYPE_VK4, "4-bit") \
Elena Demikhovsky003e7d72013-07-28 08:28:38 +0000458 ENUM_ENTRY(TYPE_VK8, "8-bit") \
459 ENUM_ENTRY(TYPE_VK16, "16-bit") \
Robert Khasanovbfa01312014-07-21 14:54:21 +0000460 ENUM_ENTRY(TYPE_VK32, "32-bit") \
461 ENUM_ENTRY(TYPE_VK64, "64-bit") \
Sean Callanan04cc3072009-12-19 02:59:52 +0000462 ENUM_ENTRY(TYPE_XMM0, "Implicit use of XMM0") \
463 ENUM_ENTRY(TYPE_SEGMENTREG, "Segment register operand") \
464 ENUM_ENTRY(TYPE_DEBUGREG, "Debug register operand") \
Sean Callanane7e1cf92010-05-06 20:59:00 +0000465 ENUM_ENTRY(TYPE_CONTROLREG, "Control register operand") \
Sean Callanan04cc3072009-12-19 02:59:52 +0000466 \
467 ENUM_ENTRY(TYPE_Mv, "Memory operand of operand size") \
468 ENUM_ENTRY(TYPE_Rv, "Register operand of operand size") \
469 ENUM_ENTRY(TYPE_IMMv, "Immediate operand of operand size") \
470 ENUM_ENTRY(TYPE_RELv, "Immediate address of operand size") \
471 ENUM_ENTRY(TYPE_DUP0, "Duplicate of operand 0") \
472 ENUM_ENTRY(TYPE_DUP1, "operand 1") \
473 ENUM_ENTRY(TYPE_DUP2, "operand 2") \
474 ENUM_ENTRY(TYPE_DUP3, "operand 3") \
475 ENUM_ENTRY(TYPE_DUP4, "operand 4") \
476 ENUM_ENTRY(TYPE_M512, "512-bit FPU/MMX/XMM/MXCSR state")
477
Craig Topper5f33d902012-07-31 04:38:27 +0000478#define ENUM_ENTRY(n, d) n,
Richard Smith89ee75d2014-04-20 21:07:34 +0000479enum OperandType {
Sean Callanan04cc3072009-12-19 02:59:52 +0000480 TYPES
481 TYPE_max
Richard Smith89ee75d2014-04-20 21:07:34 +0000482};
Sean Callanan04cc3072009-12-19 02:59:52 +0000483#undef ENUM_ENTRY
484
Richard Smith6a6967e2014-04-20 22:10:16 +0000485/// \brief The specification for how to extract and interpret one operand.
Sean Callanan04cc3072009-12-19 02:59:52 +0000486struct OperandSpecifier {
Craig Topper6dedbae2012-03-04 02:16:41 +0000487 uint8_t encoding;
488 uint8_t type;
Sean Callanan04cc3072009-12-19 02:59:52 +0000489};
490
Richard Smith6a6967e2014-04-20 22:10:16 +0000491// Indicates where the opcode modifier (if any) is to be found. Extended
492// opcodes with AddRegFrm have the opcode modifier in the ModR/M byte.
Sean Callanan04cc3072009-12-19 02:59:52 +0000493#define MODIFIER_TYPES \
Craig Topper91551182014-01-01 15:29:32 +0000494 ENUM_ENTRY(MODIFIER_NONE)
Sean Callanan04cc3072009-12-19 02:59:52 +0000495
496#define ENUM_ENTRY(n) n,
Richard Smith89ee75d2014-04-20 21:07:34 +0000497enum ModifierType {
Sean Callanan04cc3072009-12-19 02:59:52 +0000498 MODIFIER_TYPES
499 MODIFIER_max
Richard Smith89ee75d2014-04-20 21:07:34 +0000500};
Sean Callanan04cc3072009-12-19 02:59:52 +0000501#undef ENUM_ENTRY
502
Adam Nemet4688a2e2014-08-05 17:23:01 +0000503static const unsigned X86_MAX_OPERANDS = 6;
Sean Callanan04cc3072009-12-19 02:59:52 +0000504
Richard Smith6a6967e2014-04-20 22:10:16 +0000505/// Decoding mode for the Intel disassembler. 16-bit, 32-bit, and 64-bit mode
506/// are supported, and represent real mode, IA-32e, and IA-32e in 64-bit mode,
507/// respectively.
Richard Smith89ee75d2014-04-20 21:07:34 +0000508enum DisassemblerMode {
Sean Callanan04cc3072009-12-19 02:59:52 +0000509 MODE_16BIT,
510 MODE_32BIT,
511 MODE_64BIT
Richard Smith89ee75d2014-04-20 21:07:34 +0000512};
513
514} // namespace X86Disassembler
515} // namespace llvm
Sean Callanan04cc3072009-12-19 02:59:52 +0000516
517#endif