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1 | #ifndef _ASM_X86_INAT_H |
2 | #define _ASM_X86_INAT_H | |
3 | /* | |
4 | * x86 instruction attributes | |
5 | * | |
6 | * Written by Masami Hiramatsu <mhiramat@redhat.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
21 | * | |
22 | */ | |
23 | #include <asm/inat_types.h> | |
24 | ||
25 | /* | |
26 | * Internal bits. Don't use bitmasks directly, because these bits are | |
27 | * unstable. You should use checking functions. | |
28 | */ | |
29 | ||
30 | #define INAT_OPCODE_TABLE_SIZE 256 | |
31 | #define INAT_GROUP_TABLE_SIZE 8 | |
32 | ||
04d46c1b | 33 | /* Legacy last prefixes */ |
eb13296c | 34 | #define INAT_PFX_OPNDSZ 1 /* 0x66 */ /* LPFX1 */ |
e0e492e9 MH |
35 | #define INAT_PFX_REPE 2 /* 0xF3 */ /* LPFX2 */ |
36 | #define INAT_PFX_REPNE 3 /* 0xF2 */ /* LPFX3 */ | |
04d46c1b | 37 | /* Other Legacy prefixes */ |
eb13296c MH |
38 | #define INAT_PFX_LOCK 4 /* 0xF0 */ |
39 | #define INAT_PFX_CS 5 /* 0x2E */ | |
40 | #define INAT_PFX_DS 6 /* 0x3E */ | |
41 | #define INAT_PFX_ES 7 /* 0x26 */ | |
42 | #define INAT_PFX_FS 8 /* 0x64 */ | |
43 | #define INAT_PFX_GS 9 /* 0x65 */ | |
44 | #define INAT_PFX_SS 10 /* 0x36 */ | |
45 | #define INAT_PFX_ADDRSZ 11 /* 0x67 */ | |
04d46c1b MH |
46 | /* x86-64 REX prefix */ |
47 | #define INAT_PFX_REX 12 /* 0x4X */ | |
e0e492e9 MH |
48 | /* AVX VEX prefixes */ |
49 | #define INAT_PFX_VEX2 13 /* 2-bytes VEX prefix */ | |
50 | #define INAT_PFX_VEX3 14 /* 3-bytes VEX prefix */ | |
25af37f4 | 51 | #define INAT_PFX_EVEX 15 /* EVEX prefix */ |
eb13296c | 52 | |
04d46c1b MH |
53 | #define INAT_LSTPFX_MAX 3 |
54 | #define INAT_LGCPFX_MAX 11 | |
eb13296c MH |
55 | |
56 | /* Immediate size */ | |
57 | #define INAT_IMM_BYTE 1 | |
58 | #define INAT_IMM_WORD 2 | |
59 | #define INAT_IMM_DWORD 3 | |
60 | #define INAT_IMM_QWORD 4 | |
61 | #define INAT_IMM_PTR 5 | |
62 | #define INAT_IMM_VWORD32 6 | |
63 | #define INAT_IMM_VWORD 7 | |
64 | ||
65 | /* Legacy prefix */ | |
66 | #define INAT_PFX_OFFS 0 | |
67 | #define INAT_PFX_BITS 4 | |
68 | #define INAT_PFX_MAX ((1 << INAT_PFX_BITS) - 1) | |
69 | #define INAT_PFX_MASK (INAT_PFX_MAX << INAT_PFX_OFFS) | |
70 | /* Escape opcodes */ | |
71 | #define INAT_ESC_OFFS (INAT_PFX_OFFS + INAT_PFX_BITS) | |
72 | #define INAT_ESC_BITS 2 | |
73 | #define INAT_ESC_MAX ((1 << INAT_ESC_BITS) - 1) | |
74 | #define INAT_ESC_MASK (INAT_ESC_MAX << INAT_ESC_OFFS) | |
75 | /* Group opcodes (1-16) */ | |
76 | #define INAT_GRP_OFFS (INAT_ESC_OFFS + INAT_ESC_BITS) | |
77 | #define INAT_GRP_BITS 5 | |
78 | #define INAT_GRP_MAX ((1 << INAT_GRP_BITS) - 1) | |
79 | #define INAT_GRP_MASK (INAT_GRP_MAX << INAT_GRP_OFFS) | |
80 | /* Immediates */ | |
81 | #define INAT_IMM_OFFS (INAT_GRP_OFFS + INAT_GRP_BITS) | |
82 | #define INAT_IMM_BITS 3 | |
83 | #define INAT_IMM_MASK (((1 << INAT_IMM_BITS) - 1) << INAT_IMM_OFFS) | |
84 | /* Flags */ | |
85 | #define INAT_FLAG_OFFS (INAT_IMM_OFFS + INAT_IMM_BITS) | |
04d46c1b MH |
86 | #define INAT_MODRM (1 << (INAT_FLAG_OFFS)) |
87 | #define INAT_FORCE64 (1 << (INAT_FLAG_OFFS + 1)) | |
88 | #define INAT_SCNDIMM (1 << (INAT_FLAG_OFFS + 2)) | |
89 | #define INAT_MOFFSET (1 << (INAT_FLAG_OFFS + 3)) | |
90 | #define INAT_VARIANT (1 << (INAT_FLAG_OFFS + 4)) | |
e0e492e9 MH |
91 | #define INAT_VEXOK (1 << (INAT_FLAG_OFFS + 5)) |
92 | #define INAT_VEXONLY (1 << (INAT_FLAG_OFFS + 6)) | |
25af37f4 | 93 | #define INAT_EVEXONLY (1 << (INAT_FLAG_OFFS + 7)) |
eb13296c MH |
94 | /* Attribute making macros for attribute tables */ |
95 | #define INAT_MAKE_PREFIX(pfx) (pfx << INAT_PFX_OFFS) | |
96 | #define INAT_MAKE_ESCAPE(esc) (esc << INAT_ESC_OFFS) | |
97 | #define INAT_MAKE_GROUP(grp) ((grp << INAT_GRP_OFFS) | INAT_MODRM) | |
98 | #define INAT_MAKE_IMM(imm) (imm << INAT_IMM_OFFS) | |
99 | ||
100 | /* Attribute search APIs */ | |
101 | extern insn_attr_t inat_get_opcode_attribute(insn_byte_t opcode); | |
f8d98f10 | 102 | extern int inat_get_last_prefix_id(insn_byte_t last_pfx); |
eb13296c | 103 | extern insn_attr_t inat_get_escape_attribute(insn_byte_t opcode, |
f8d98f10 | 104 | int lpfx_id, |
eb13296c MH |
105 | insn_attr_t esc_attr); |
106 | extern insn_attr_t inat_get_group_attribute(insn_byte_t modrm, | |
f8d98f10 | 107 | int lpfx_id, |
eb13296c | 108 | insn_attr_t esc_attr); |
e0e492e9 MH |
109 | extern insn_attr_t inat_get_avx_attribute(insn_byte_t opcode, |
110 | insn_byte_t vex_m, | |
111 | insn_byte_t vex_pp); | |
eb13296c MH |
112 | |
113 | /* Attribute checking functions */ | |
04d46c1b | 114 | static inline int inat_is_legacy_prefix(insn_attr_t attr) |
eb13296c | 115 | { |
04d46c1b MH |
116 | attr &= INAT_PFX_MASK; |
117 | return attr && attr <= INAT_LGCPFX_MAX; | |
eb13296c MH |
118 | } |
119 | ||
120 | static inline int inat_is_address_size_prefix(insn_attr_t attr) | |
121 | { | |
122 | return (attr & INAT_PFX_MASK) == INAT_PFX_ADDRSZ; | |
123 | } | |
124 | ||
125 | static inline int inat_is_operand_size_prefix(insn_attr_t attr) | |
126 | { | |
127 | return (attr & INAT_PFX_MASK) == INAT_PFX_OPNDSZ; | |
128 | } | |
129 | ||
04d46c1b MH |
130 | static inline int inat_is_rex_prefix(insn_attr_t attr) |
131 | { | |
132 | return (attr & INAT_PFX_MASK) == INAT_PFX_REX; | |
133 | } | |
134 | ||
eb13296c MH |
135 | static inline int inat_last_prefix_id(insn_attr_t attr) |
136 | { | |
04d46c1b | 137 | if ((attr & INAT_PFX_MASK) > INAT_LSTPFX_MAX) |
eb13296c MH |
138 | return 0; |
139 | else | |
140 | return attr & INAT_PFX_MASK; | |
141 | } | |
142 | ||
e0e492e9 MH |
143 | static inline int inat_is_vex_prefix(insn_attr_t attr) |
144 | { | |
145 | attr &= INAT_PFX_MASK; | |
25af37f4 AH |
146 | return attr == INAT_PFX_VEX2 || attr == INAT_PFX_VEX3 || |
147 | attr == INAT_PFX_EVEX; | |
148 | } | |
149 | ||
150 | static inline int inat_is_evex_prefix(insn_attr_t attr) | |
151 | { | |
152 | return (attr & INAT_PFX_MASK) == INAT_PFX_EVEX; | |
e0e492e9 MH |
153 | } |
154 | ||
155 | static inline int inat_is_vex3_prefix(insn_attr_t attr) | |
156 | { | |
157 | return (attr & INAT_PFX_MASK) == INAT_PFX_VEX3; | |
158 | } | |
159 | ||
eb13296c MH |
160 | static inline int inat_is_escape(insn_attr_t attr) |
161 | { | |
162 | return attr & INAT_ESC_MASK; | |
163 | } | |
164 | ||
165 | static inline int inat_escape_id(insn_attr_t attr) | |
166 | { | |
167 | return (attr & INAT_ESC_MASK) >> INAT_ESC_OFFS; | |
168 | } | |
169 | ||
170 | static inline int inat_is_group(insn_attr_t attr) | |
171 | { | |
172 | return attr & INAT_GRP_MASK; | |
173 | } | |
174 | ||
175 | static inline int inat_group_id(insn_attr_t attr) | |
176 | { | |
177 | return (attr & INAT_GRP_MASK) >> INAT_GRP_OFFS; | |
178 | } | |
179 | ||
180 | static inline int inat_group_common_attribute(insn_attr_t attr) | |
181 | { | |
182 | return attr & ~INAT_GRP_MASK; | |
183 | } | |
184 | ||
185 | static inline int inat_has_immediate(insn_attr_t attr) | |
186 | { | |
187 | return attr & INAT_IMM_MASK; | |
188 | } | |
189 | ||
190 | static inline int inat_immediate_size(insn_attr_t attr) | |
191 | { | |
192 | return (attr & INAT_IMM_MASK) >> INAT_IMM_OFFS; | |
193 | } | |
194 | ||
eb13296c MH |
195 | static inline int inat_has_modrm(insn_attr_t attr) |
196 | { | |
197 | return attr & INAT_MODRM; | |
198 | } | |
199 | ||
200 | static inline int inat_is_force64(insn_attr_t attr) | |
201 | { | |
202 | return attr & INAT_FORCE64; | |
203 | } | |
204 | ||
205 | static inline int inat_has_second_immediate(insn_attr_t attr) | |
206 | { | |
207 | return attr & INAT_SCNDIMM; | |
208 | } | |
209 | ||
210 | static inline int inat_has_moffset(insn_attr_t attr) | |
211 | { | |
212 | return attr & INAT_MOFFSET; | |
213 | } | |
214 | ||
215 | static inline int inat_has_variant(insn_attr_t attr) | |
216 | { | |
217 | return attr & INAT_VARIANT; | |
218 | } | |
219 | ||
e0e492e9 MH |
220 | static inline int inat_accept_vex(insn_attr_t attr) |
221 | { | |
222 | return attr & INAT_VEXOK; | |
223 | } | |
224 | ||
225 | static inline int inat_must_vex(insn_attr_t attr) | |
226 | { | |
25af37f4 AH |
227 | return attr & (INAT_VEXONLY | INAT_EVEXONLY); |
228 | } | |
229 | ||
230 | static inline int inat_must_evex(insn_attr_t attr) | |
231 | { | |
232 | return attr & INAT_EVEXONLY; | |
e0e492e9 | 233 | } |
eb13296c | 234 | #endif |