1234353Sdim/*===-- X86DisassemblerDecoderCommon.h - Disassembler decoder -----*- C -*-===* 2201360Srdivacky * 3201360Srdivacky * The LLVM Compiler Infrastructure 4201360Srdivacky * 5201360Srdivacky * This file is distributed under the University of Illinois Open Source 6201360Srdivacky * License. See LICENSE.TXT for details. 7201360Srdivacky * 8201360Srdivacky *===----------------------------------------------------------------------===* 9201360Srdivacky * 10201360Srdivacky * This file is part of the X86 Disassembler. 11201360Srdivacky * It contains common definitions used by both the disassembler and the table 12201360Srdivacky * generator. 13201360Srdivacky * Documentation for the disassembler can be found in X86Disassembler.h. 14201360Srdivacky * 15201360Srdivacky *===----------------------------------------------------------------------===*/ 16201360Srdivacky 17201360Srdivacky/* 18201360Srdivacky * This header file provides those definitions that need to be shared between 19201360Srdivacky * the decoder and the table generator in a C-friendly manner. 20201360Srdivacky */ 21201360Srdivacky 22201360Srdivacky#ifndef X86DISASSEMBLERDECODERCOMMON_H 23201360Srdivacky#define X86DISASSEMBLERDECODERCOMMON_H 24201360Srdivacky 25218893Sdim#include "llvm/Support/DataTypes.h" 26201360Srdivacky 27201360Srdivacky#define INSTRUCTIONS_SYM x86DisassemblerInstrSpecifiers 28201360Srdivacky#define CONTEXTS_SYM x86DisassemblerContexts 29201360Srdivacky#define ONEBYTE_SYM x86DisassemblerOneByteOpcodes 30201360Srdivacky#define TWOBYTE_SYM x86DisassemblerTwoByteOpcodes 31201360Srdivacky#define THREEBYTE38_SYM x86DisassemblerThreeByte38Opcodes 32201360Srdivacky#define THREEBYTE3A_SYM x86DisassemblerThreeByte3AOpcodes 33221345Sdim#define THREEBYTEA6_SYM x86DisassemblerThreeByteA6Opcodes 34221345Sdim#define THREEBYTEA7_SYM x86DisassemblerThreeByteA7Opcodes 35201360Srdivacky 36201360Srdivacky#define INSTRUCTIONS_STR "x86DisassemblerInstrSpecifiers" 37201360Srdivacky#define CONTEXTS_STR "x86DisassemblerContexts" 38201360Srdivacky#define ONEBYTE_STR "x86DisassemblerOneByteOpcodes" 39201360Srdivacky#define TWOBYTE_STR "x86DisassemblerTwoByteOpcodes" 40201360Srdivacky#define THREEBYTE38_STR "x86DisassemblerThreeByte38Opcodes" 41201360Srdivacky#define THREEBYTE3A_STR "x86DisassemblerThreeByte3AOpcodes" 42221345Sdim#define THREEBYTEA6_STR "x86DisassemblerThreeByteA6Opcodes" 43221345Sdim#define THREEBYTEA7_STR "x86DisassemblerThreeByteA7Opcodes" 44201360Srdivacky 45201360Srdivacky/* 46201360Srdivacky * Attributes of an instruction that must be known before the opcode can be 47201360Srdivacky * processed correctly. Most of these indicate the presence of particular 48201360Srdivacky * prefixes, but ATTR_64BIT is simply an attribute of the decoding context. 49201360Srdivacky */ 50201360Srdivacky#define ATTRIBUTE_BITS \ 51201360Srdivacky ENUM_ENTRY(ATTR_NONE, 0x00) \ 52201360Srdivacky ENUM_ENTRY(ATTR_64BIT, 0x01) \ 53201360Srdivacky ENUM_ENTRY(ATTR_XS, 0x02) \ 54201360Srdivacky ENUM_ENTRY(ATTR_XD, 0x04) \ 55201360Srdivacky ENUM_ENTRY(ATTR_REXW, 0x08) \ 56221345Sdim ENUM_ENTRY(ATTR_OPSIZE, 0x10) \ 57234353Sdim ENUM_ENTRY(ATTR_ADSIZE, 0x20) \ 58234353Sdim ENUM_ENTRY(ATTR_VEX, 0x40) \ 59234353Sdim ENUM_ENTRY(ATTR_VEXL, 0x80) 60201360Srdivacky 61201360Srdivacky#define ENUM_ENTRY(n, v) n = v, 62201360Srdivackyenum attributeBits { 63201360Srdivacky ATTRIBUTE_BITS 64201360Srdivacky ATTR_max 65201360Srdivacky}; 66201360Srdivacky#undef ENUM_ENTRY 67201360Srdivacky 68201360Srdivacky/* 69201360Srdivacky * Combinations of the above attributes that are relevant to instruction 70201360Srdivacky * decode. Although other combinations are possible, they can be reduced to 71201360Srdivacky * these without affecting the ultimately decoded instruction. 72201360Srdivacky */ 73201360Srdivacky 74201360Srdivacky/* Class name Rank Rationale for rank assignment */ 75201360Srdivacky#define INSTRUCTION_CONTEXTS \ 76201360Srdivacky ENUM_ENTRY(IC, 0, "says nothing about the instruction") \ 77201360Srdivacky ENUM_ENTRY(IC_64BIT, 1, "says the instruction applies in " \ 78201360Srdivacky "64-bit mode but no more") \ 79201360Srdivacky ENUM_ENTRY(IC_OPSIZE, 3, "requires an OPSIZE prefix, so " \ 80201360Srdivacky "operands change width") \ 81234353Sdim ENUM_ENTRY(IC_ADSIZE, 3, "requires an ADSIZE prefix, so " \ 82234353Sdim "operands change width") \ 83201360Srdivacky ENUM_ENTRY(IC_XD, 2, "may say something about the opcode " \ 84201360Srdivacky "but not the operands") \ 85201360Srdivacky ENUM_ENTRY(IC_XS, 2, "may say something about the opcode " \ 86201360Srdivacky "but not the operands") \ 87226633Sdim ENUM_ENTRY(IC_XD_OPSIZE, 3, "requires an OPSIZE prefix, so " \ 88226633Sdim "operands change width") \ 89226633Sdim ENUM_ENTRY(IC_XS_OPSIZE, 3, "requires an OPSIZE prefix, so " \ 90226633Sdim "operands change width") \ 91201360Srdivacky ENUM_ENTRY(IC_64BIT_REXW, 4, "requires a REX.W prefix, so operands "\ 92201360Srdivacky "change width; overrides IC_OPSIZE") \ 93201360Srdivacky ENUM_ENTRY(IC_64BIT_OPSIZE, 3, "Just as meaningful as IC_OPSIZE") \ 94234353Sdim ENUM_ENTRY(IC_64BIT_ADSIZE, 3, "Just as meaningful as IC_ADSIZE") \ 95201360Srdivacky ENUM_ENTRY(IC_64BIT_XD, 5, "XD instructions are SSE; REX.W is " \ 96201360Srdivacky "secondary") \ 97201360Srdivacky ENUM_ENTRY(IC_64BIT_XS, 5, "Just as meaningful as IC_64BIT_XD") \ 98226633Sdim ENUM_ENTRY(IC_64BIT_XD_OPSIZE, 3, "Just as meaningful as IC_XD_OPSIZE") \ 99226633Sdim ENUM_ENTRY(IC_64BIT_XS_OPSIZE, 3, "Just as meaningful as IC_XS_OPSIZE") \ 100201360Srdivacky ENUM_ENTRY(IC_64BIT_REXW_XS, 6, "OPSIZE could mean a different " \ 101201360Srdivacky "opcode") \ 102201360Srdivacky ENUM_ENTRY(IC_64BIT_REXW_XD, 6, "Just as meaningful as " \ 103201360Srdivacky "IC_64BIT_REXW_XS") \ 104201360Srdivacky ENUM_ENTRY(IC_64BIT_REXW_OPSIZE, 7, "The Dynamic Duo! Prefer over all " \ 105201360Srdivacky "else because this changes most " \ 106221345Sdim "operands' meaning") \ 107221345Sdim ENUM_ENTRY(IC_VEX, 1, "requires a VEX prefix") \ 108221345Sdim ENUM_ENTRY(IC_VEX_XS, 2, "requires VEX and the XS prefix") \ 109221345Sdim ENUM_ENTRY(IC_VEX_XD, 2, "requires VEX and the XD prefix") \ 110221345Sdim ENUM_ENTRY(IC_VEX_OPSIZE, 2, "requires VEX and the OpSize prefix") \ 111221345Sdim ENUM_ENTRY(IC_VEX_W, 3, "requires VEX and the W prefix") \ 112221345Sdim ENUM_ENTRY(IC_VEX_W_XS, 4, "requires VEX, W, and XS prefix") \ 113221345Sdim ENUM_ENTRY(IC_VEX_W_XD, 4, "requires VEX, W, and XD prefix") \ 114221345Sdim ENUM_ENTRY(IC_VEX_W_OPSIZE, 4, "requires VEX, W, and OpSize") \ 115221345Sdim ENUM_ENTRY(IC_VEX_L, 3, "requires VEX and the L prefix") \ 116221345Sdim ENUM_ENTRY(IC_VEX_L_XS, 4, "requires VEX and the L and XS prefix")\ 117226633Sdim ENUM_ENTRY(IC_VEX_L_XD, 4, "requires VEX and the L and XD prefix")\ 118234353Sdim ENUM_ENTRY(IC_VEX_L_OPSIZE, 4, "requires VEX, L, and OpSize") \ 119234353Sdim ENUM_ENTRY(IC_VEX_L_W_OPSIZE, 5, "requires VEX, L, W and OpSize") 120201360Srdivacky 121221345Sdim 122239462Sdim#define ENUM_ENTRY(n, r, d) n, 123201360Srdivackytypedef enum { 124201360Srdivacky INSTRUCTION_CONTEXTS 125201360Srdivacky IC_max 126201360Srdivacky} InstructionContext; 127201360Srdivacky#undef ENUM_ENTRY 128201360Srdivacky 129201360Srdivacky/* 130201360Srdivacky * Opcode types, which determine which decode table to use, both in the Intel 131201360Srdivacky * manual and also for the decoder. 132201360Srdivacky */ 133201360Srdivackytypedef enum { 134201360Srdivacky ONEBYTE = 0, 135201360Srdivacky TWOBYTE = 1, 136201360Srdivacky THREEBYTE_38 = 2, 137221345Sdim THREEBYTE_3A = 3, 138221345Sdim THREEBYTE_A6 = 4, 139221345Sdim THREEBYTE_A7 = 5 140201360Srdivacky} OpcodeType; 141201360Srdivacky 142201360Srdivacky/* 143201360Srdivacky * The following structs are used for the hierarchical decode table. After 144201360Srdivacky * determining the instruction's class (i.e., which IC_* constant applies to 145201360Srdivacky * it), the decoder reads the opcode. Some instructions require specific 146201360Srdivacky * values of the ModR/M byte, so the ModR/M byte indexes into the final table. 147201360Srdivacky * 148201360Srdivacky * If a ModR/M byte is not required, "required" is left unset, and the values 149201360Srdivacky * for each instructionID are identical. 150201360Srdivacky */ 151239462Sdim 152201360Srdivackytypedef uint16_t InstrUID; 153201360Srdivacky 154201360Srdivacky/* 155239462Sdim * ModRMDecisionType - describes the type of ModR/M decision, allowing the 156201360Srdivacky * consumer to determine the number of entries in it. 157201360Srdivacky * 158201360Srdivacky * MODRM_ONEENTRY - No matter what the value of the ModR/M byte is, the decoded 159201360Srdivacky * instruction is the same. 160201360Srdivacky * MODRM_SPLITRM - If the ModR/M byte is between 0x00 and 0xbf, the opcode 161201360Srdivacky * corresponds to one instruction; otherwise, it corresponds to 162201360Srdivacky * a different instruction. 163243830Sdim * MODRM_SPLITMISC- If the ModR/M byte is between 0x00 and 0xbf, ModR/M byte 164243830Sdim * divided by 8 is used to select instruction; otherwise, each 165243830Sdim * value of the ModR/M byte could correspond to a different 166243830Sdim * instruction. 167234353Sdim * MODRM_SPLITREG - ModR/M byte divided by 8 is used to select instruction. This 168234353Sdim corresponds to instructions that use reg field as opcode 169201360Srdivacky * MODRM_FULL - Potentially, each value of the ModR/M byte could correspond 170201360Srdivacky * to a different instruction. 171201360Srdivacky */ 172201360Srdivacky 173201360Srdivacky#define MODRMTYPES \ 174201360Srdivacky ENUM_ENTRY(MODRM_ONEENTRY) \ 175201360Srdivacky ENUM_ENTRY(MODRM_SPLITRM) \ 176243830Sdim ENUM_ENTRY(MODRM_SPLITMISC) \ 177234353Sdim ENUM_ENTRY(MODRM_SPLITREG) \ 178201360Srdivacky ENUM_ENTRY(MODRM_FULL) 179201360Srdivacky 180239462Sdim#define ENUM_ENTRY(n) n, 181201360Srdivackytypedef enum { 182201360Srdivacky MODRMTYPES 183201360Srdivacky MODRM_max 184201360Srdivacky} ModRMDecisionType; 185201360Srdivacky#undef ENUM_ENTRY 186201360Srdivacky 187201360Srdivacky/* 188239462Sdim * ModRMDecision - Specifies whether a ModR/M byte is needed and (if so) which 189201360Srdivacky * instruction each possible value of the ModR/M byte corresponds to. Once 190201360Srdivacky * this information is known, we have narrowed down to a single instruction. 191201360Srdivacky */ 192201360Srdivackystruct ModRMDecision { 193201360Srdivacky uint8_t modrm_type; 194239462Sdim 195201360Srdivacky /* The macro below must be defined wherever this file is included. */ 196201360Srdivacky INSTRUCTION_IDS 197201360Srdivacky}; 198201360Srdivacky 199201360Srdivacky/* 200201360Srdivacky * OpcodeDecision - Specifies which set of ModR/M->instruction tables to look at 201201360Srdivacky * given a particular opcode. 202201360Srdivacky */ 203201360Srdivackystruct OpcodeDecision { 204201360Srdivacky struct ModRMDecision modRMDecisions[256]; 205201360Srdivacky}; 206201360Srdivacky 207201360Srdivacky/* 208201360Srdivacky * ContextDecision - Specifies which opcode->instruction tables to look at given 209201360Srdivacky * a particular context (set of attributes). Since there are many possible 210201360Srdivacky * contexts, the decoder first uses CONTEXTS_SYM to determine which context 211201360Srdivacky * applies given a specific set of attributes. Hence there are only IC_max 212201360Srdivacky * entries in this table, rather than 2^(ATTR_max). 213201360Srdivacky */ 214201360Srdivackystruct ContextDecision { 215201360Srdivacky struct OpcodeDecision opcodeDecisions[IC_max]; 216201360Srdivacky}; 217201360Srdivacky 218239462Sdim/* 219201360Srdivacky * Physical encodings of instruction operands. 220201360Srdivacky */ 221201360Srdivacky 222201360Srdivacky#define ENCODINGS \ 223201360Srdivacky ENUM_ENTRY(ENCODING_NONE, "") \ 224201360Srdivacky ENUM_ENTRY(ENCODING_REG, "Register operand in ModR/M byte.") \ 225201360Srdivacky ENUM_ENTRY(ENCODING_RM, "R/M operand in ModR/M byte.") \ 226221345Sdim ENUM_ENTRY(ENCODING_VVVV, "Register operand in VEX.vvvv byte.") \ 227201360Srdivacky ENUM_ENTRY(ENCODING_CB, "1-byte code offset (possible new CS value)") \ 228201360Srdivacky ENUM_ENTRY(ENCODING_CW, "2-byte") \ 229201360Srdivacky ENUM_ENTRY(ENCODING_CD, "4-byte") \ 230201360Srdivacky ENUM_ENTRY(ENCODING_CP, "6-byte") \ 231201360Srdivacky ENUM_ENTRY(ENCODING_CO, "8-byte") \ 232201360Srdivacky ENUM_ENTRY(ENCODING_CT, "10-byte") \ 233201360Srdivacky ENUM_ENTRY(ENCODING_IB, "1-byte immediate") \ 234201360Srdivacky ENUM_ENTRY(ENCODING_IW, "2-byte") \ 235201360Srdivacky ENUM_ENTRY(ENCODING_ID, "4-byte") \ 236201360Srdivacky ENUM_ENTRY(ENCODING_IO, "8-byte") \ 237201360Srdivacky ENUM_ENTRY(ENCODING_RB, "(AL..DIL, R8L..R15L) Register code added to " \ 238201360Srdivacky "the opcode byte") \ 239201360Srdivacky ENUM_ENTRY(ENCODING_RW, "(AX..DI, R8W..R15W)") \ 240201360Srdivacky ENUM_ENTRY(ENCODING_RD, "(EAX..EDI, R8D..R15D)") \ 241201360Srdivacky ENUM_ENTRY(ENCODING_RO, "(RAX..RDI, R8..R15)") \ 242201360Srdivacky ENUM_ENTRY(ENCODING_I, "Position on floating-point stack added to the " \ 243201360Srdivacky "opcode byte") \ 244201360Srdivacky \ 245201360Srdivacky ENUM_ENTRY(ENCODING_Iv, "Immediate of operand size") \ 246201360Srdivacky ENUM_ENTRY(ENCODING_Ia, "Immediate of address size") \ 247201360Srdivacky ENUM_ENTRY(ENCODING_Rv, "Register code of operand size added to the " \ 248201360Srdivacky "opcode byte") \ 249201360Srdivacky ENUM_ENTRY(ENCODING_DUP, "Duplicate of another operand; ID is encoded " \ 250201360Srdivacky "in type") 251201360Srdivacky 252239462Sdim#define ENUM_ENTRY(n, d) n, 253201360Srdivacky typedef enum { 254201360Srdivacky ENCODINGS 255201360Srdivacky ENCODING_max 256201360Srdivacky } OperandEncoding; 257201360Srdivacky#undef ENUM_ENTRY 258201360Srdivacky 259239462Sdim/* 260201360Srdivacky * Semantic interpretations of instruction operands. 261201360Srdivacky */ 262201360Srdivacky 263201360Srdivacky#define TYPES \ 264201360Srdivacky ENUM_ENTRY(TYPE_NONE, "") \ 265201360Srdivacky ENUM_ENTRY(TYPE_REL8, "1-byte immediate address") \ 266201360Srdivacky ENUM_ENTRY(TYPE_REL16, "2-byte") \ 267201360Srdivacky ENUM_ENTRY(TYPE_REL32, "4-byte") \ 268201360Srdivacky ENUM_ENTRY(TYPE_REL64, "8-byte") \ 269201360Srdivacky ENUM_ENTRY(TYPE_PTR1616, "2+2-byte segment+offset address") \ 270201360Srdivacky ENUM_ENTRY(TYPE_PTR1632, "2+4-byte") \ 271201360Srdivacky ENUM_ENTRY(TYPE_PTR1664, "2+8-byte") \ 272201360Srdivacky ENUM_ENTRY(TYPE_R8, "1-byte register operand") \ 273201360Srdivacky ENUM_ENTRY(TYPE_R16, "2-byte") \ 274201360Srdivacky ENUM_ENTRY(TYPE_R32, "4-byte") \ 275201360Srdivacky ENUM_ENTRY(TYPE_R64, "8-byte") \ 276201360Srdivacky ENUM_ENTRY(TYPE_IMM8, "1-byte immediate operand") \ 277201360Srdivacky ENUM_ENTRY(TYPE_IMM16, "2-byte") \ 278201360Srdivacky ENUM_ENTRY(TYPE_IMM32, "4-byte") \ 279201360Srdivacky ENUM_ENTRY(TYPE_IMM64, "8-byte") \ 280207618Srdivacky ENUM_ENTRY(TYPE_IMM3, "1-byte immediate operand between 0 and 7") \ 281234353Sdim ENUM_ENTRY(TYPE_IMM5, "1-byte immediate operand between 0 and 31") \ 282201360Srdivacky ENUM_ENTRY(TYPE_RM8, "1-byte register or memory operand") \ 283201360Srdivacky ENUM_ENTRY(TYPE_RM16, "2-byte") \ 284201360Srdivacky ENUM_ENTRY(TYPE_RM32, "4-byte") \ 285201360Srdivacky ENUM_ENTRY(TYPE_RM64, "8-byte") \ 286201360Srdivacky ENUM_ENTRY(TYPE_M, "Memory operand") \ 287201360Srdivacky ENUM_ENTRY(TYPE_M8, "1-byte") \ 288201360Srdivacky ENUM_ENTRY(TYPE_M16, "2-byte") \ 289201360Srdivacky ENUM_ENTRY(TYPE_M32, "4-byte") \ 290201360Srdivacky ENUM_ENTRY(TYPE_M64, "8-byte") \ 291201360Srdivacky ENUM_ENTRY(TYPE_LEA, "Effective address") \ 292201360Srdivacky ENUM_ENTRY(TYPE_M128, "16-byte (SSE/SSE2)") \ 293218893Sdim ENUM_ENTRY(TYPE_M256, "256-byte (AVX)") \ 294201360Srdivacky ENUM_ENTRY(TYPE_M1616, "2+2-byte segment+offset address") \ 295201360Srdivacky ENUM_ENTRY(TYPE_M1632, "2+4-byte") \ 296201360Srdivacky ENUM_ENTRY(TYPE_M1664, "2+8-byte") \ 297201360Srdivacky ENUM_ENTRY(TYPE_M16_32, "2+4-byte two-part memory operand (LIDT, LGDT)") \ 298201360Srdivacky ENUM_ENTRY(TYPE_M16_16, "2+2-byte (BOUND)") \ 299201360Srdivacky ENUM_ENTRY(TYPE_M32_32, "4+4-byte (BOUND)") \ 300201360Srdivacky ENUM_ENTRY(TYPE_M16_64, "2+8-byte (LIDT, LGDT)") \ 301201360Srdivacky ENUM_ENTRY(TYPE_MOFFS8, "1-byte memory offset (relative to segment " \ 302201360Srdivacky "base)") \ 303201360Srdivacky ENUM_ENTRY(TYPE_MOFFS16, "2-byte") \ 304201360Srdivacky ENUM_ENTRY(TYPE_MOFFS32, "4-byte") \ 305201360Srdivacky ENUM_ENTRY(TYPE_MOFFS64, "8-byte") \ 306201360Srdivacky ENUM_ENTRY(TYPE_SREG, "Byte with single bit set: 0 = ES, 1 = CS, " \ 307201360Srdivacky "2 = SS, 3 = DS, 4 = FS, 5 = GS") \ 308201360Srdivacky ENUM_ENTRY(TYPE_M32FP, "32-bit IEE754 memory floating-point operand") \ 309201360Srdivacky ENUM_ENTRY(TYPE_M64FP, "64-bit") \ 310201360Srdivacky ENUM_ENTRY(TYPE_M80FP, "80-bit extended") \ 311201360Srdivacky ENUM_ENTRY(TYPE_M16INT, "2-byte memory integer operand for use in " \ 312201360Srdivacky "floating-point instructions") \ 313201360Srdivacky ENUM_ENTRY(TYPE_M32INT, "4-byte") \ 314201360Srdivacky ENUM_ENTRY(TYPE_M64INT, "8-byte") \ 315201360Srdivacky ENUM_ENTRY(TYPE_ST, "Position on the floating-point stack") \ 316201360Srdivacky ENUM_ENTRY(TYPE_MM, "MMX register operand") \ 317201360Srdivacky ENUM_ENTRY(TYPE_MM32, "4-byte MMX register or memory operand") \ 318201360Srdivacky ENUM_ENTRY(TYPE_MM64, "8-byte") \ 319201360Srdivacky ENUM_ENTRY(TYPE_XMM, "XMM register operand") \ 320201360Srdivacky ENUM_ENTRY(TYPE_XMM32, "4-byte XMM register or memory operand") \ 321201360Srdivacky ENUM_ENTRY(TYPE_XMM64, "8-byte") \ 322201360Srdivacky ENUM_ENTRY(TYPE_XMM128, "16-byte") \ 323221345Sdim ENUM_ENTRY(TYPE_XMM256, "32-byte") \ 324201360Srdivacky ENUM_ENTRY(TYPE_XMM0, "Implicit use of XMM0") \ 325201360Srdivacky ENUM_ENTRY(TYPE_SEGMENTREG, "Segment register operand") \ 326201360Srdivacky ENUM_ENTRY(TYPE_DEBUGREG, "Debug register operand") \ 327208599Srdivacky ENUM_ENTRY(TYPE_CONTROLREG, "Control register operand") \ 328201360Srdivacky \ 329201360Srdivacky ENUM_ENTRY(TYPE_Mv, "Memory operand of operand size") \ 330201360Srdivacky ENUM_ENTRY(TYPE_Rv, "Register operand of operand size") \ 331201360Srdivacky ENUM_ENTRY(TYPE_IMMv, "Immediate operand of operand size") \ 332201360Srdivacky ENUM_ENTRY(TYPE_RELv, "Immediate address of operand size") \ 333201360Srdivacky ENUM_ENTRY(TYPE_DUP0, "Duplicate of operand 0") \ 334201360Srdivacky ENUM_ENTRY(TYPE_DUP1, "operand 1") \ 335201360Srdivacky ENUM_ENTRY(TYPE_DUP2, "operand 2") \ 336201360Srdivacky ENUM_ENTRY(TYPE_DUP3, "operand 3") \ 337201360Srdivacky ENUM_ENTRY(TYPE_DUP4, "operand 4") \ 338201360Srdivacky ENUM_ENTRY(TYPE_M512, "512-bit FPU/MMX/XMM/MXCSR state") 339201360Srdivacky 340239462Sdim#define ENUM_ENTRY(n, d) n, 341201360Srdivackytypedef enum { 342201360Srdivacky TYPES 343201360Srdivacky TYPE_max 344201360Srdivacky} OperandType; 345201360Srdivacky#undef ENUM_ENTRY 346201360Srdivacky 347239462Sdim/* 348201360Srdivacky * OperandSpecifier - The specification for how to extract and interpret one 349201360Srdivacky * operand. 350201360Srdivacky */ 351201360Srdivackystruct OperandSpecifier { 352234353Sdim uint8_t encoding; 353234353Sdim uint8_t type; 354201360Srdivacky}; 355201360Srdivacky 356201360Srdivacky/* 357201360Srdivacky * Indicates where the opcode modifier (if any) is to be found. Extended 358201360Srdivacky * opcodes with AddRegFrm have the opcode modifier in the ModR/M byte. 359201360Srdivacky */ 360201360Srdivacky 361201360Srdivacky#define MODIFIER_TYPES \ 362201360Srdivacky ENUM_ENTRY(MODIFIER_NONE) \ 363201360Srdivacky ENUM_ENTRY(MODIFIER_OPCODE) \ 364201360Srdivacky ENUM_ENTRY(MODIFIER_MODRM) 365201360Srdivacky 366201360Srdivacky#define ENUM_ENTRY(n) n, 367201360Srdivackytypedef enum { 368201360Srdivacky MODIFIER_TYPES 369201360Srdivacky MODIFIER_max 370201360Srdivacky} ModifierType; 371201360Srdivacky#undef ENUM_ENTRY 372201360Srdivacky 373201360Srdivacky#define X86_MAX_OPERANDS 5 374201360Srdivacky 375201360Srdivacky/* 376201360Srdivacky * The specification for how to extract and interpret a full instruction and 377201360Srdivacky * its operands. 378201360Srdivacky */ 379201360Srdivackystruct InstructionSpecifier { 380234353Sdim uint8_t modifierType; 381201360Srdivacky uint8_t modifierBase; 382239462Sdim 383201360Srdivacky /* The macro below must be defined wherever this file is included. */ 384201360Srdivacky INSTRUCTION_SPECIFIER_FIELDS 385201360Srdivacky}; 386201360Srdivacky 387201360Srdivacky/* 388201360Srdivacky * Decoding mode for the Intel disassembler. 16-bit, 32-bit, and 64-bit mode 389201360Srdivacky * are supported, and represent real mode, IA-32e, and IA-32e in 64-bit mode, 390201360Srdivacky * respectively. 391201360Srdivacky */ 392201360Srdivackytypedef enum { 393201360Srdivacky MODE_16BIT, 394201360Srdivacky MODE_32BIT, 395201360Srdivacky MODE_64BIT 396201360Srdivacky} DisassemblerMode; 397201360Srdivacky 398201360Srdivacky#endif 399