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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* x86 instruction attribute tables
*
* Written by Masami Hiramatsu <mhiramat@redhat.com>
*/
#include "../include/asm/insn.h"
/* Attribute tables are generated from opcode map */
#include "inat-tables.c"
/* Attribute search APIs */
insn_attr_t inat_get_opcode_attribute(insn_byte_t opcode)
{
return inat_primary_table[opcode];
}
int inat_get_last_prefix_id(insn_byte_t last_pfx)
{
insn_attr_t lpfx_attr;
lpfx_attr = inat_get_opcode_attribute(last_pfx);
return inat_last_prefix_id(lpfx_attr);
}
insn_attr_t inat_get_escape_attribute(insn_byte_t opcode, int lpfx_id,
insn_attr_t esc_attr)
{
const insn_attr_t *table;
int n;
n = inat_escape_id(esc_attr);
table = inat_escape_tables[n][0];
if (!table)
return 0;
if (inat_has_variant(table[opcode]) && lpfx_id) {
table = inat_escape_tables[n][lpfx_id];
if (!table)
return 0;
}
return table[opcode];
}
insn_attr_t inat_get_group_attribute(insn_byte_t modrm, int lpfx_id,
insn_attr_t grp_attr)
{
const insn_attr_t *table;
int n;
n = inat_group_id(grp_attr);
table = inat_group_tables[n][0];
if (!table)
return inat_group_common_attribute(grp_attr);
if (inat_has_variant(table[X86_MODRM_REG(modrm)]) && lpfx_id) {
table = inat_group_tables[n][lpfx_id];
if (!table)
return inat_group_common_attribute(grp_attr);
}
return table[X86_MODRM_REG(modrm)] |
inat_group_common_attribute(grp_attr);
}
insn_attr_t inat_get_avx_attribute(insn_byte_t opcode, insn_byte_t vex_m,
insn_byte_t vex_p)
{
const insn_attr_t *table;
if (vex_m > X86_VEX_M_MAX || vex_p > INAT_LSTPFX_MAX)
return 0;
/* At first, this checks the master table */
table = inat_avx_tables[vex_m][0];
if (!table)
return 0;
if (!inat_is_group(table[opcode]) && vex_p) {
/* If this is not a group, get attribute directly */
table = inat_avx_tables[vex_m][vex_p];
if (!table)
return 0;
}
return table[opcode];
}
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