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Linux kernel mirror (for testing)
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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 */
27insn_attr_t inat_get_opcode_attribute(insn_byte_t opcode)
28{
29 return inat_primary_table[opcode];
30}
31
32insn_attr_t inat_get_escape_attribute(insn_byte_t opcode, insn_byte_t last_pfx,
33 insn_attr_t esc_attr)
34{
35 const insn_attr_t *table;
36 insn_attr_t lpfx_attr;
37 int n, m = 0;
38
39 n = inat_escape_id(esc_attr);
40 if (last_pfx) {
41 lpfx_attr = inat_get_opcode_attribute(last_pfx);
42 m = inat_last_prefix_id(lpfx_attr);
43 }
44 table = inat_escape_tables[n][0];
45 if (!table)
46 return 0;
47 if (inat_has_variant(table[opcode]) && m) {
48 table = inat_escape_tables[n][m];
49 if (!table)
50 return 0;
51 }
52 return table[opcode];
53}
54
55insn_attr_t inat_get_group_attribute(insn_byte_t modrm, insn_byte_t last_pfx,
56 insn_attr_t grp_attr)
57{
58 const insn_attr_t *table;
59 insn_attr_t lpfx_attr;
60 int n, m = 0;
61
62 n = inat_group_id(grp_attr);
63 if (last_pfx) {
64 lpfx_attr = inat_get_opcode_attribute(last_pfx);
65 m = inat_last_prefix_id(lpfx_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)]) && m) {
71 table = inat_group_tables[n][m];
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
79insn_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 table = inat_avx_tables[vex_m][vex_p];
86 if (!table)
87 return 0;
88 return table[opcode];
89}
90