1 #ifndef _ASM_X86_INAT_H
2 #define _ASM_X86_INAT_H
4 * x86 instruction attributes
6 * Written by Masami Hiramatsu <mhiramat@redhat.com>
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.
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.
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.
23 #include <asm/inat_types.h>
26 * Internal bits. Don't use bitmasks directly, because these bits are
27 * unstable. You should use checking functions.
30 #define INAT_OPCODE_TABLE_SIZE 256
31 #define INAT_GROUP_TABLE_SIZE 8
33 /* Legacy last prefixes */
34 #define INAT_PFX_OPNDSZ 1 /* 0x66 */ /* LPFX1 */
35 #define INAT_PFX_REPE 2 /* 0xF3 */ /* LPFX2 */
36 #define INAT_PFX_REPNE 3 /* 0xF2 */ /* LPFX3 */
37 /* Other Legacy prefixes */
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 */
46 /* x86-64 REX prefix */
47 #define INAT_PFX_REX 12 /* 0x4X */
48 /* AVX VEX prefixes */
49 #define INAT_PFX_VEX2 13 /* 2-bytes VEX prefix */
50 #define INAT_PFX_VEX3 14 /* 3-bytes VEX prefix */
51 #define INAT_PFX_EVEX 15 /* EVEX prefix */
53 #define INAT_LSTPFX_MAX 3
54 #define INAT_LGCPFX_MAX 11
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
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)
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)
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)
85 #define INAT_FLAG_OFFS (INAT_IMM_OFFS + INAT_IMM_BITS)
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))
91 #define INAT_VEXOK (1 << (INAT_FLAG_OFFS + 5))
92 #define INAT_VEXONLY (1 << (INAT_FLAG_OFFS + 6))
93 #define INAT_EVEXONLY (1 << (INAT_FLAG_OFFS + 7))
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)
100 /* Attribute search APIs */
101 extern insn_attr_t
inat_get_opcode_attribute(insn_byte_t opcode
);
102 extern int inat_get_last_prefix_id(insn_byte_t last_pfx
);
103 extern insn_attr_t
inat_get_escape_attribute(insn_byte_t opcode
,
105 insn_attr_t esc_attr
);
106 extern insn_attr_t
inat_get_group_attribute(insn_byte_t modrm
,
108 insn_attr_t esc_attr
);
109 extern insn_attr_t
inat_get_avx_attribute(insn_byte_t opcode
,
113 /* Attribute checking functions */
114 static inline int inat_is_legacy_prefix(insn_attr_t attr
)
116 attr
&= INAT_PFX_MASK
;
117 return attr
&& attr
<= INAT_LGCPFX_MAX
;
120 static inline int inat_is_address_size_prefix(insn_attr_t attr
)
122 return (attr
& INAT_PFX_MASK
) == INAT_PFX_ADDRSZ
;
125 static inline int inat_is_operand_size_prefix(insn_attr_t attr
)
127 return (attr
& INAT_PFX_MASK
) == INAT_PFX_OPNDSZ
;
130 static inline int inat_is_rex_prefix(insn_attr_t attr
)
132 return (attr
& INAT_PFX_MASK
) == INAT_PFX_REX
;
135 static inline int inat_last_prefix_id(insn_attr_t attr
)
137 if ((attr
& INAT_PFX_MASK
) > INAT_LSTPFX_MAX
)
140 return attr
& INAT_PFX_MASK
;
143 static inline int inat_is_vex_prefix(insn_attr_t attr
)
145 attr
&= INAT_PFX_MASK
;
146 return attr
== INAT_PFX_VEX2
|| attr
== INAT_PFX_VEX3
||
147 attr
== INAT_PFX_EVEX
;
150 static inline int inat_is_evex_prefix(insn_attr_t attr
)
152 return (attr
& INAT_PFX_MASK
) == INAT_PFX_EVEX
;
155 static inline int inat_is_vex3_prefix(insn_attr_t attr
)
157 return (attr
& INAT_PFX_MASK
) == INAT_PFX_VEX3
;
160 static inline int inat_is_escape(insn_attr_t attr
)
162 return attr
& INAT_ESC_MASK
;
165 static inline int inat_escape_id(insn_attr_t attr
)
167 return (attr
& INAT_ESC_MASK
) >> INAT_ESC_OFFS
;
170 static inline int inat_is_group(insn_attr_t attr
)
172 return attr
& INAT_GRP_MASK
;
175 static inline int inat_group_id(insn_attr_t attr
)
177 return (attr
& INAT_GRP_MASK
) >> INAT_GRP_OFFS
;
180 static inline int inat_group_common_attribute(insn_attr_t attr
)
182 return attr
& ~INAT_GRP_MASK
;
185 static inline int inat_has_immediate(insn_attr_t attr
)
187 return attr
& INAT_IMM_MASK
;
190 static inline int inat_immediate_size(insn_attr_t attr
)
192 return (attr
& INAT_IMM_MASK
) >> INAT_IMM_OFFS
;
195 static inline int inat_has_modrm(insn_attr_t attr
)
197 return attr
& INAT_MODRM
;
200 static inline int inat_is_force64(insn_attr_t attr
)
202 return attr
& INAT_FORCE64
;
205 static inline int inat_has_second_immediate(insn_attr_t attr
)
207 return attr
& INAT_SCNDIMM
;
210 static inline int inat_has_moffset(insn_attr_t attr
)
212 return attr
& INAT_MOFFSET
;
215 static inline int inat_has_variant(insn_attr_t attr
)
217 return attr
& INAT_VARIANT
;
220 static inline int inat_accept_vex(insn_attr_t attr
)
222 return attr
& INAT_VEXOK
;
225 static inline int inat_must_vex(insn_attr_t attr
)
227 return attr
& (INAT_VEXONLY
| INAT_EVEXONLY
);
230 static inline int inat_must_evex(insn_attr_t attr
)
232 return attr
& INAT_EVEXONLY
;