1 #ifndef _ASM_X86_INAT_H 2 #define _ASM_X86_INAT_H 3 /* 4 * x86 instruction attributes 5 * 6 * Written by Masami Hiramatsu <mhiramat@redhat.com> 7 * 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. 12 * 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. 17 * 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. 21 * 22 */ 23 #include <asm/inat_types.h> 24 25 /* 26 * Internal bits. Don't use bitmasks directly, because these bits are 27 * unstable. You should use checking functions. 28 */ 29 30 #define INAT_OPCODE_TABLE_SIZE 256 31 #define INAT_GROUP_TABLE_SIZE 8 32 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 52 #define INAT_LSTPFX_MAX 3 53 #define INAT_LGCPFX_MAX 11 54 55 /* Immediate size */ 56 #define INAT_IMM_BYTE 1 57 #define INAT_IMM_WORD 2 58 #define INAT_IMM_DWORD 3 59 #define INAT_IMM_QWORD 4 60 #define INAT_IMM_PTR 5 61 #define INAT_IMM_VWORD32 6 62 #define INAT_IMM_VWORD 7 63 64 /* Legacy prefix */ 65 #define INAT_PFX_OFFS 0 66 #define INAT_PFX_BITS 4 67 #define INAT_PFX_MAX ((1 << INAT_PFX_BITS) - 1) 68 #define INAT_PFX_MASK (INAT_PFX_MAX << INAT_PFX_OFFS) 69 /* Escape opcodes */ 70 #define INAT_ESC_OFFS (INAT_PFX_OFFS + INAT_PFX_BITS) 71 #define INAT_ESC_BITS 2 72 #define INAT_ESC_MAX ((1 << INAT_ESC_BITS) - 1) 73 #define INAT_ESC_MASK (INAT_ESC_MAX << INAT_ESC_OFFS) 74 /* Group opcodes (1-16) */ 75 #define INAT_GRP_OFFS (INAT_ESC_OFFS + INAT_ESC_BITS) 76 #define INAT_GRP_BITS 5 77 #define INAT_GRP_MAX ((1 << INAT_GRP_BITS) - 1) 78 #define INAT_GRP_MASK (INAT_GRP_MAX << INAT_GRP_OFFS) 79 /* Immediates */ 80 #define INAT_IMM_OFFS (INAT_GRP_OFFS + INAT_GRP_BITS) 81 #define INAT_IMM_BITS 3 82 #define INAT_IMM_MASK (((1 << INAT_IMM_BITS) - 1) << INAT_IMM_OFFS) 83 /* Flags */ 84 #define INAT_FLAG_OFFS (INAT_IMM_OFFS + INAT_IMM_BITS) 85 #define INAT_MODRM (1 << (INAT_FLAG_OFFS)) 86 #define INAT_FORCE64 (1 << (INAT_FLAG_OFFS + 1)) 87 #define INAT_SCNDIMM (1 << (INAT_FLAG_OFFS + 2)) 88 #define INAT_MOFFSET (1 << (INAT_FLAG_OFFS + 3)) 89 #define INAT_VARIANT (1 << (INAT_FLAG_OFFS + 4)) 90 #define INAT_VEXOK (1 << (INAT_FLAG_OFFS + 5)) 91 #define INAT_VEXONLY (1 << (INAT_FLAG_OFFS + 6)) 92 /* Attribute making macros for attribute tables */ 93 #define INAT_MAKE_PREFIX(pfx) (pfx << INAT_PFX_OFFS) 94 #define INAT_MAKE_ESCAPE(esc) (esc << INAT_ESC_OFFS) 95 #define INAT_MAKE_GROUP(grp) ((grp << INAT_GRP_OFFS) | INAT_MODRM) 96 #define INAT_MAKE_IMM(imm) (imm << INAT_IMM_OFFS) 97 98 /* Attribute search APIs */ 99 extern insn_attr_t inat_get_opcode_attribute(insn_byte_t opcode); 100 extern int inat_get_last_prefix_id(insn_byte_t last_pfx); 101 extern insn_attr_t inat_get_escape_attribute(insn_byte_t opcode, 102 int lpfx_id, 103 insn_attr_t esc_attr); 104 extern insn_attr_t inat_get_group_attribute(insn_byte_t modrm, 105 int lpfx_id, 106 insn_attr_t esc_attr); 107 extern insn_attr_t inat_get_avx_attribute(insn_byte_t opcode, 108 insn_byte_t vex_m, 109 insn_byte_t vex_pp); 110 111 /* Attribute checking functions */ 112 static inline int inat_is_legacy_prefix(insn_attr_t attr) 113 { 114 attr &= INAT_PFX_MASK; 115 return attr && attr <= INAT_LGCPFX_MAX; 116 } 117 118 static inline int inat_is_address_size_prefix(insn_attr_t attr) 119 { 120 return (attr & INAT_PFX_MASK) == INAT_PFX_ADDRSZ; 121 } 122 123 static inline int inat_is_operand_size_prefix(insn_attr_t attr) 124 { 125 return (attr & INAT_PFX_MASK) == INAT_PFX_OPNDSZ; 126 } 127 128 static inline int inat_is_rex_prefix(insn_attr_t attr) 129 { 130 return (attr & INAT_PFX_MASK) == INAT_PFX_REX; 131 } 132 133 static inline int inat_last_prefix_id(insn_attr_t attr) 134 { 135 if ((attr & INAT_PFX_MASK) > INAT_LSTPFX_MAX) 136 return 0; 137 else 138 return attr & INAT_PFX_MASK; 139 } 140 141 static inline int inat_is_vex_prefix(insn_attr_t attr) 142 { 143 attr &= INAT_PFX_MASK; 144 return attr == INAT_PFX_VEX2 || attr == INAT_PFX_VEX3; 145 } 146 147 static inline int inat_is_vex3_prefix(insn_attr_t attr) 148 { 149 return (attr & INAT_PFX_MASK) == INAT_PFX_VEX3; 150 } 151 152 static inline int inat_is_escape(insn_attr_t attr) 153 { 154 return attr & INAT_ESC_MASK; 155 } 156 157 static inline int inat_escape_id(insn_attr_t attr) 158 { 159 return (attr & INAT_ESC_MASK) >> INAT_ESC_OFFS; 160 } 161 162 static inline int inat_is_group(insn_attr_t attr) 163 { 164 return attr & INAT_GRP_MASK; 165 } 166 167 static inline int inat_group_id(insn_attr_t attr) 168 { 169 return (attr & INAT_GRP_MASK) >> INAT_GRP_OFFS; 170 } 171 172 static inline int inat_group_common_attribute(insn_attr_t attr) 173 { 174 return attr & ~INAT_GRP_MASK; 175 } 176 177 static inline int inat_has_immediate(insn_attr_t attr) 178 { 179 return attr & INAT_IMM_MASK; 180 } 181 182 static inline int inat_immediate_size(insn_attr_t attr) 183 { 184 return (attr & INAT_IMM_MASK) >> INAT_IMM_OFFS; 185 } 186 187 static inline int inat_has_modrm(insn_attr_t attr) 188 { 189 return attr & INAT_MODRM; 190 } 191 192 static inline int inat_is_force64(insn_attr_t attr) 193 { 194 return attr & INAT_FORCE64; 195 } 196 197 static inline int inat_has_second_immediate(insn_attr_t attr) 198 { 199 return attr & INAT_SCNDIMM; 200 } 201 202 static inline int inat_has_moffset(insn_attr_t attr) 203 { 204 return attr & INAT_MOFFSET; 205 } 206 207 static inline int inat_has_variant(insn_attr_t attr) 208 { 209 return attr & INAT_VARIANT; 210 } 211 212 static inline int inat_accept_vex(insn_attr_t attr) 213 { 214 return attr & INAT_VEXOK; 215 } 216 217 static inline int inat_must_vex(insn_attr_t attr) 218 { 219 return attr & INAT_VEXONLY; 220 } 221 #endif 222