1 /*
2 * x86 instruction attribute tables
3 *
4 * Written by Masami Hiramatsu <mhiramat@redhat.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 *
20 */
21 #include <asm/insn.h>
22
23 /* Attribute tables are generated from opcode map */
24 #include "inat-tables.c"
25
26 /* Attribute search APIs */
inat_get_opcode_attribute(insn_byte_t opcode)27 insn_attr_t inat_get_opcode_attribute(insn_byte_t opcode)
28 {
29 return inat_primary_table[opcode];
30 }
31
inat_get_last_prefix_id(insn_byte_t last_pfx)32 int inat_get_last_prefix_id(insn_byte_t last_pfx)
33 {
34 insn_attr_t lpfx_attr;
35
36 lpfx_attr = inat_get_opcode_attribute(last_pfx);
37 return inat_last_prefix_id(lpfx_attr);
38 }
39
inat_get_escape_attribute(insn_byte_t opcode,int lpfx_id,insn_attr_t esc_attr)40 insn_attr_t inat_get_escape_attribute(insn_byte_t opcode, int lpfx_id,
41 insn_attr_t esc_attr)
42 {
43 const insn_attr_t *table;
44 int n;
45
46 n = inat_escape_id(esc_attr);
47
48 table = inat_escape_tables[n][0];
49 if (!table)
50 return 0;
51 if (inat_has_variant(table[opcode]) && lpfx_id) {
52 table = inat_escape_tables[n][lpfx_id];
53 if (!table)
54 return 0;
55 }
56 return table[opcode];
57 }
58
inat_get_group_attribute(insn_byte_t modrm,int lpfx_id,insn_attr_t grp_attr)59 insn_attr_t inat_get_group_attribute(insn_byte_t modrm, int lpfx_id,
60 insn_attr_t grp_attr)
61 {
62 const insn_attr_t *table;
63 int n;
64
65 n = inat_group_id(grp_attr);
66
67 table = inat_group_tables[n][0];
68 if (!table)
69 return inat_group_common_attribute(grp_attr);
70 if (inat_has_variant(table[X86_MODRM_REG(modrm)]) && lpfx_id) {
71 table = inat_group_tables[n][lpfx_id];
72 if (!table)
73 return inat_group_common_attribute(grp_attr);
74 }
75 return table[X86_MODRM_REG(modrm)] |
76 inat_group_common_attribute(grp_attr);
77 }
78
inat_get_avx_attribute(insn_byte_t opcode,insn_byte_t vex_m,insn_byte_t vex_p)79 insn_attr_t inat_get_avx_attribute(insn_byte_t opcode, insn_byte_t vex_m,
80 insn_byte_t vex_p)
81 {
82 const insn_attr_t *table;
83 if (vex_m > X86_VEX_M_MAX || vex_p > INAT_LSTPFX_MAX)
84 return 0;
85 /* At first, this checks the master table */
86 table = inat_avx_tables[vex_m][0];
87 if (!table)
88 return 0;
89 if (!inat_is_group(table[opcode]) && vex_p) {
90 /* If this is not a group, get attribute directly */
91 table = inat_avx_tables[vex_m][vex_p];
92 if (!table)
93 return 0;
94 }
95 return table[opcode];
96 }
97
98