diff options
Diffstat (limited to 'arch/x86/lib/inat.c')
| -rw-r--r-- | arch/x86/lib/inat.c | 90 | 
1 files changed, 90 insertions, 0 deletions
diff --git a/arch/x86/lib/inat.c b/arch/x86/lib/inat.c new file mode 100644 index 00000000000..46fc4ee09fc --- /dev/null +++ b/arch/x86/lib/inat.c @@ -0,0 +1,90 @@ +/* + * x86 instruction attribute tables + * + * Written by Masami Hiramatsu <mhiramat@redhat.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + */ +#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]; +} + +insn_attr_t inat_get_escape_attribute(insn_byte_t opcode, insn_byte_t last_pfx, +				      insn_attr_t esc_attr) +{ +	const insn_attr_t *table; +	insn_attr_t lpfx_attr; +	int n, m = 0; + +	n = inat_escape_id(esc_attr); +	if (last_pfx) { +		lpfx_attr = inat_get_opcode_attribute(last_pfx); +		m = inat_last_prefix_id(lpfx_attr); +	} +	table = inat_escape_tables[n][0]; +	if (!table) +		return 0; +	if (inat_has_variant(table[opcode]) && m) { +		table = inat_escape_tables[n][m]; +		if (!table) +			return 0; +	} +	return table[opcode]; +} + +insn_attr_t inat_get_group_attribute(insn_byte_t modrm, insn_byte_t last_pfx, +				     insn_attr_t grp_attr) +{ +	const insn_attr_t *table; +	insn_attr_t lpfx_attr; +	int n, m = 0; + +	n = inat_group_id(grp_attr); +	if (last_pfx) { +		lpfx_attr = inat_get_opcode_attribute(last_pfx); +		m = inat_last_prefix_id(lpfx_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)]) && m) { +		table = inat_group_tables[n][m]; +		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; +	table = inat_avx_tables[vex_m][vex_p]; +	if (!table) +		return 0; +	return table[opcode]; +} +  |