/* $Id: DisasmTables-armv8-a64.cpp 105779 2024-08-21 16:39:51Z vboxsync $ */ /** @file * VBox disassembler - Tables for ARMv8 A64. */ /* * Copyright (C) 2023 Oracle and/or its affiliates. * * This file is part of VirtualBox base platform packages, as * available from https://www.virtualbox.org. * * 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, in version 3 of the * License. * * 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, see . * * SPDX-License-Identifier: GPL-3.0-only */ /********************************************************************************************************************************* * Header Files * *********************************************************************************************************************************/ #include #include #include "DisasmInternal-armv8.h" /********************************************************************************************************************************* * Global Variables * *********************************************************************************************************************************/ #define DIS_ARMV8_OP(a_fMask, a_fValue, a_szOpcode, a_uOpcode, a_fOpType) \ { a_fMask, a_fValue, OP(a_szOpcode, 0, 0, 0, a_uOpcode, 0, 0, 0, a_fOpType) } #ifndef DIS_CORE_ONLY static char g_szInvalidOpcode[] = "Invalid Opcode"; #endif #define INVALID_OPCODE \ DIS_ARMV8_OP(0xffffffff, 0, g_szInvalidOpcode, OP_ARMV8_INVALID, DISOPTYPE_INVALID) /* Invalid opcode */ DECL_HIDDEN_CONST(DISOPCODE) g_ArmV8A64InvalidOpcode[1] = { OP(g_szInvalidOpcode, 0, 0, 0, 0, 0, 0, 0, DISOPTYPE_INVALID) }; /* UDF */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(g_aArmV8A64InsnRsvd) DIS_ARMV8_OP(0xffff0000, 0x00000000, "udf" , OP_ARMV8_A64_UDF, DISOPTYPE_INVALID) DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_PARAMS_1(g_aArmV8A64InsnRsvd, 0 /*fClass*/, kDisArmV8OpcDecodeNop, 0xffff0000, 16, kDisArmv8OpParmImm) DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseImm, 0, 16, 0 /*idxParam*/), DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_END; /* ADR/ADRP */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(g_ArmV8A64Adr) DIS_ARMV8_OP(0x9f000000, 0x10000000, "adr" , OP_ARMV8_A64_ADR, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0x9f000000, 0x90000000, "adrp" , OP_ARMV8_A64_ADRP, DISOPTYPE_HARMLESS) DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_PARAMS_2(g_ArmV8A64Adr, DISARMV8INSNCLASS_F_FORCED_64BIT, kDisArmV8OpcDecodeNop, RT_BIT_32(31), 31, kDisArmv8OpParmGpr, kDisArmv8OpParmImmRel) DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseReg, 0, 5, 0 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseImmAdr, 0, 0, 1 /*idxParam*/), DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_END; /* ADD/ADDS/SUB/SUBS */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(g_ArmV8A64AddSubImm) DIS_ARMV8_OP(0x7f800000, 0x11000000, "add" , OP_ARMV8_A64_ADD, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0x7f800000, 0x31000000, "adds" , OP_ARMV8_A64_ADDS, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0x7f800000, 0x51000000, "sub" , OP_ARMV8_A64_SUB, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0x7f800000, 0x71000000, "subs" , OP_ARMV8_A64_SUBS, DISOPTYPE_HARMLESS), DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_PARAMS_3(g_ArmV8A64AddSubImm, DISARMV8INSNCLASS_F_SF, kDisArmV8OpcDecodeNop, RT_BIT_32(29) | RT_BIT_32(30), 29, kDisArmv8OpParmGpr, kDisArmv8OpParmGpr, kDisArmv8OpParmImm) DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseReg, 0, 5, 0 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseReg, 5, 5, 1 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseImm, 10, 12, 2 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseSh12, 22, 1, 2 /*idxParam*/), DIS_ARMV8_INSN_PARAM_NONE DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_END; /* AND/ORR/EOR/ANDS */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(g_ArmV8A64LogicalImm) DIS_ARMV8_OP(0x7f800000, 0x12000000, "and" , OP_ARMV8_A64_AND, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0x7f800000, 0x32000000, "orr" , OP_ARMV8_A64_ORR, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0x7f800000, 0x52000000, "eor" , OP_ARMV8_A64_EOR, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0x7f800000, 0x72000000, "ands" , OP_ARMV8_A64_ANDS, DISOPTYPE_HARMLESS), DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_PARAMS_3(g_ArmV8A64LogicalImm, DISARMV8INSNCLASS_F_SF, kDisArmV8OpcDecodeNop, RT_BIT_32(29) | RT_BIT_32(30), 29, kDisArmv8OpParmGpr, kDisArmv8OpParmGpr, kDisArmv8OpParmImm) DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseReg, 0, 5, 0 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseReg, 5, 5, 1 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseImmsImmrN, 10, 13, 2 /*idxParam*/), DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_END; /* MOVN/MOVZ/MOVK */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(g_ArmV8A64MoveWide) DIS_ARMV8_OP(0x7f800000, 0x12800000, "movn", OP_ARMV8_A64_MOVN, DISOPTYPE_HARMLESS), INVALID_OPCODE, DIS_ARMV8_OP(0x7f800000, 0x52800000, "movz" , OP_ARMV8_A64_MOVZ, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0x7f800000, 0x72800000, "movk" , OP_ARMV8_A64_MOVK, DISOPTYPE_HARMLESS), DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_PARAMS_2(g_ArmV8A64MoveWide, DISARMV8INSNCLASS_F_SF, kDisArmV8OpcDecodeNop, RT_BIT_32(29) | RT_BIT_32(30), 29, kDisArmv8OpParmGpr, kDisArmv8OpParmImm) DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseReg, 0, 5, 0 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseImm, 5, 16, 1 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseHw, 21, 2, 1 /*idxParam*/), DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_END; /* SBFM/BFM/UBFM */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(g_ArmV8A64Bitfield) DIS_ARMV8_OP(0x7f800000, 0x13000000, "sbfm", OP_ARMV8_A64_SBFM, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0x7f800000, 0x33000000, "bfm", OP_ARMV8_A64_BFM, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0x7f800000, 0x53000000, "ubfm", OP_ARMV8_A64_UBFM, DISOPTYPE_HARMLESS), INVALID_OPCODE, DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_PARAMS_4(g_ArmV8A64Bitfield, DISARMV8INSNCLASS_F_SF | DISARMV8INSNCLASS_F_N_FORCED_1_ON_64BIT, kDisArmV8OpcDecodeNop, RT_BIT_32(29) | RT_BIT_32(30), 29, kDisArmv8OpParmGpr, kDisArmv8OpParmGpr, kDisArmv8OpParmImm, kDisArmv8OpParmImm) DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseReg, 0, 5, 0 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseReg, 5, 5, 1 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseImm, 16, 6, 2 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseImm, 10, 6, 3 /*idxParam*/), DIS_ARMV8_INSN_PARAM_NONE DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_END; /* * C4.1.65 of the ARMv8 architecture reference manual has the following table for the * data processing (immediate) instruction classes: * * Bit 25 24 23 * +------------------------------------------- * 0 0 x PC-rel. addressing. * 0 1 0 Add/subtract (immediate) * 0 1 1 Add/subtract (immediate, with tags) * 1 0 0 Logical (immediate) * 1 0 1 Move wide (immediate) * 1 1 0 Bitfield * 1 1 1 Extract */ DIS_ARMV8_DECODE_MAP_DEFINE_BEGIN(g_aArmV8A64InsnDataProcessingImm) DIS_ARMV8_DECODE_MAP_ENTRY(g_ArmV8A64Adr), DIS_ARMV8_DECODE_MAP_ENTRY(g_ArmV8A64Adr), DIS_ARMV8_DECODE_MAP_ENTRY(g_ArmV8A64AddSubImm), DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, /** @todo Add/subtract immediate with tags. */ DIS_ARMV8_DECODE_MAP_ENTRY(g_ArmV8A64LogicalImm), DIS_ARMV8_DECODE_MAP_ENTRY(g_ArmV8A64MoveWide), DIS_ARMV8_DECODE_MAP_ENTRY(g_ArmV8A64Bitfield), DIS_ARMV8_DECODE_MAP_INVALID_ENTRY /** @todo Extract */ DIS_ARMV8_DECODE_MAP_DEFINE_END(g_aArmV8A64InsnDataProcessingImm, RT_BIT_32(23) | RT_BIT_32(24) | RT_BIT_32(25), 23); /* B.cond/BC.cond */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(g_ArmV8A64CondBr) DIS_ARMV8_OP(0xff000010, 0x54000000, "b", OP_ARMV8_A64_B, DISOPTYPE_HARMLESS | DISOPTYPE_CONTROLFLOW | DISOPTYPE_RELATIVE_CONTROLFLOW | DISOPTYPE_COND_CONTROLFLOW), DIS_ARMV8_OP(0xff000010, 0x54000010, "bc" , OP_ARMV8_A64_BC, DISOPTYPE_HARMLESS | DISOPTYPE_CONTROLFLOW | DISOPTYPE_RELATIVE_CONTROLFLOW | DISOPTYPE_COND_CONTROLFLOW), DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_PARAMS_1(g_ArmV8A64CondBr, 0 /*fClass*/, kDisArmV8OpcDecodeNop, RT_BIT_32(4), 4, kDisArmv8OpParmImmRel) DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseCond, 0, 4, DIS_ARMV8_INSN_PARAM_UNSET), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseImmRel, 5, 19, 0 /*idxParam*/), DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_END; /* SVC/HVC/SMC/BRK/HLT/TCANCEL/DCPS1/DCPS2/DCPS3 */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(g_ArmV8A64Excp) DIS_ARMV8_OP(0xffe0001f, 0xd4000001, "svc", OP_ARMV8_A64_SVC, DISOPTYPE_CONTROLFLOW | DISOPTYPE_INTERRUPT), DIS_ARMV8_OP(0xffe0001f, 0xd4000002, "hvc", OP_ARMV8_A64_HVC, DISOPTYPE_CONTROLFLOW | DISOPTYPE_INTERRUPT | DISOPTYPE_PRIVILEGED), DIS_ARMV8_OP(0xffe0001f, 0xd4000003, "smc", OP_ARMV8_A64_SMC, DISOPTYPE_CONTROLFLOW | DISOPTYPE_INTERRUPT | DISOPTYPE_PRIVILEGED), DIS_ARMV8_OP(0xffe0001f, 0xd4200000, "brk", OP_ARMV8_A64_BRK, DISOPTYPE_CONTROLFLOW | DISOPTYPE_INTERRUPT), DIS_ARMV8_OP(0xffe0001f, 0xd4400000, "hlt", OP_ARMV8_A64_HLT, DISOPTYPE_CONTROLFLOW | DISOPTYPE_INTERRUPT), DIS_ARMV8_OP(0xffe0001f, 0xd4600000, "tcancel", OP_ARMV8_A64_TCANCEL, DISOPTYPE_CONTROLFLOW | DISOPTYPE_INTERRUPT), /* FEAT_TME */ DIS_ARMV8_OP(0xffe0001f, 0xd4a00001, "dcps1", OP_ARMV8_A64_DCPS1, DISOPTYPE_CONTROLFLOW | DISOPTYPE_INTERRUPT), DIS_ARMV8_OP(0xffe0001f, 0xd4a00002, "dcps2", OP_ARMV8_A64_DCPS2, DISOPTYPE_CONTROLFLOW | DISOPTYPE_INTERRUPT), DIS_ARMV8_OP(0xffe0001f, 0xd4a00003, "dcps3", OP_ARMV8_A64_DCPS3, DISOPTYPE_CONTROLFLOW | DISOPTYPE_INTERRUPT), DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_PARAMS_1(g_ArmV8A64Excp, 0 /*fClass*/, kDisArmV8OpcDecodeLookup, 0xffe0001f, 0, kDisArmv8OpParmImm) DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseImm, 5, 16, 0 /*idxParam*/), DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_END; /* WFET/WFIT */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(g_ArmV8A64SysReg) DIS_ARMV8_OP(0xffffffe0, 0xd5031000, "wfet", OP_ARMV8_A64_WFET, DISOPTYPE_HARMLESS), /* FEAT_WFxT */ DIS_ARMV8_OP(0xffffffe0, 0x54000010, "wfit" , OP_ARMV8_A64_WFIT, DISOPTYPE_HARMLESS), /* FEAT_WFxT */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_PARAMS_1(g_ArmV8A64SysReg, DISARMV8INSNCLASS_F_FORCED_64BIT, kDisArmV8OpcDecodeNop, 0xfe0, 5, kDisArmv8OpParmGpr) DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseReg, 0, 5, 0 /*idxParam*/), DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_END; /* Various hint instructions */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(g_ArmV8A64Hints) DIS_ARMV8_OP(0xffffffff, 0xd503201f, "nop", OP_ARMV8_A64_NOP, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0xffffffff, 0xd503203f, "yield", OP_ARMV8_A64_YIELD, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0xffffffff, 0xd503205f, "wfe", OP_ARMV8_A64_WFE, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0xffffffff, 0xd503207f, "wfi", OP_ARMV8_A64_WFI, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0xffffffff, 0xd503209f, "sev", OP_ARMV8_A64_SEV, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0xffffffff, 0xd50320bf, "sevl", OP_ARMV8_A64_SEVL, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0xffffffff, 0xd50320df, "dgh", OP_ARMV8_A64_DGH, DISOPTYPE_HARMLESS), /* FEAT_DGH */ DIS_ARMV8_OP(0xffffffff, 0xd50320ff, "xpaclri", OP_ARMV8_A64_XPACLRI, DISOPTYPE_HARMLESS), /* FEAT_PAuth */ /** @todo */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_PARAMS_0(g_ArmV8A64Hints, 0 /*fClass*/, kDisArmV8OpcDecodeNop, 0xfe0, 5) DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_END; /* CLREX */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(g_ArmV8A64DecBarriers) DIS_ARMV8_OP(0xfffff0ff, 0xd503304f, "clrex", OP_ARMV8_A64_CLREX, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0xfffff0ff, 0xd50330bf, "dmb", OP_ARMV8_A64_DMB, DISOPTYPE_HARMLESS), DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_PARAMS_1(g_ArmV8A64DecBarriers, 0 /*fClass*/, kDisArmV8OpcDecodeNop, RT_BIT_32(5), 5, kDisArmv8OpParmImm) DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseImm, 8, 4, 0 /*idxParam*/), DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_END; /* Barrier instructions, we divide these instructions further based on the op2 field. */ DIS_ARMV8_DECODE_MAP_DEFINE_BEGIN(g_ArmV8A64DecodeBarriers) DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, /** @todo DSB - Encoding */ DIS_ARMV8_DECODE_MAP_ENTRY(g_ArmV8A64DecBarriers), /* CLREX */ DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, /** @todo TCOMMIT */ DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, /** @todo DSB - Encoding */ DIS_ARMV8_DECODE_MAP_ENTRY(g_ArmV8A64DecBarriers), /* DMB */ DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, /** @todo ISB */ DIS_ARMV8_DECODE_MAP_INVALID_ENTRY /** @todo SB */ DIS_ARMV8_DECODE_MAP_DEFINE_END(g_ArmV8A64DecodeBarriers, RT_BIT_32(5) | RT_BIT_32(6) | RT_BIT_32(7), 5); /* MSR (and potentially CFINV,XAFLAG,AXFLAG) */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(g_ArmV8A64PState) DIS_ARMV8_OP(0xfffff0ff, 0xd503305f, "msr", OP_ARMV8_A64_MSR, DISOPTYPE_PRIVILEGED), DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_PARAMS_2(g_ArmV8A64PState, 0 /*fClass*/, kDisArmV8OpcDecodeNop, 0, 0, kDisArmv8OpParmImm, kDisArmv8OpParmNone) /** @todo */ DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParsePState, 0, 0, 0 /*idxParam*/), /* This is special for the MSR instruction. */ DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseImm, 8, 4, 1 /*idxParam*/), /* CRm field encodes the immediate value */ DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_END; /* TSTART/TTEST */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(g_ArmV8A64SysResult) DIS_ARMV8_OP(0xfffffffe, 0xd5233060, "tstart", OP_ARMV8_A64_TSTART, DISOPTYPE_HARMLESS | DISOPTYPE_PRIVILEGED), /* FEAT_TME */ DIS_ARMV8_OP(0xfffffffe, 0xd5233160, "ttest", OP_ARMV8_A64_TTEST, DISOPTYPE_HARMLESS), /* FEAT_TME */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_PARAMS_1(g_ArmV8A64SysResult, DISARMV8INSNCLASS_F_FORCED_64BIT, kDisArmV8OpcDecodeNop, RT_BIT_32(8) | RT_BIT_32(9) | RT_BIT_32(10) | RT_BIT_32(11), 8, kDisArmv8OpParmGpr) DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseReg, 0, 5, 0 /*idxParam*/), DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_END; /* SYS */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(g_ArmV8A64Sys) DIS_ARMV8_OP(0xfff80000, 0xd5080000, "sys", OP_ARMV8_A64_SYS, DISOPTYPE_HARMLESS), DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_PARAMS_0(g_ArmV8A64Sys, DISARMV8INSNCLASS_F_FORCED_64BIT, kDisArmV8OpcDecodeNop, 0, 0) /** @todo */ DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseImm, 16, 3, 0 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseCRnCRm, 8, 8, 1 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseImm, 5, 3, 2 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseReg, 0, 5, 3 /*idxParam*/), DIS_ARMV8_INSN_PARAM_NONE DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_END; /* SYSL */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(g_ArmV8A64SysL) DIS_ARMV8_OP(0xfff80000, 0xd5280000, "sysl", OP_ARMV8_A64_SYSL, DISOPTYPE_HARMLESS), DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_PARAMS_0(g_ArmV8A64SysL, DISARMV8INSNCLASS_F_FORCED_64BIT, kDisArmV8OpcDecodeNop, 0, 0) /** @todo */ DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseReg, 0, 5, 0 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseImm, 16, 3, 1 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseCRnCRm, 8, 8, 2 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseImm, 5, 3, 3 /*idxParam*/), DIS_ARMV8_INSN_PARAM_NONE DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_END; /* MSR */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(g_ArmV8A64Msr) DIS_ARMV8_OP(0xfff00000, 0xd5100000, "msr", OP_ARMV8_A64_MSR, DISOPTYPE_HARMLESS | DISOPTYPE_PRIVILEGED), DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_PARAMS_2(g_ArmV8A64Msr, DISARMV8INSNCLASS_F_FORCED_64BIT, kDisArmV8OpcDecodeNop, 0, 0, kDisArmv8OpParmSysReg, kDisArmv8OpParmGpr) DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseSysReg, 5, 15, 0 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseReg, 0, 5, 1 /*idxParam*/), DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_END; /* MRS */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(g_ArmV8A64Mrs) DIS_ARMV8_OP(0xfff00000, 0xd5300000, "mrs", OP_ARMV8_A64_MRS, DISOPTYPE_HARMLESS | DISOPTYPE_PRIVILEGED), DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_PARAMS_2(g_ArmV8A64Mrs, DISARMV8INSNCLASS_F_FORCED_64BIT, kDisArmV8OpcDecodeNop, 0, 0, kDisArmv8OpParmGpr, kDisArmv8OpParmSysReg) DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseReg, 0, 5, 0 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseSysReg, 5, 15, 1 /*idxParam*/), DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_END; /* RET/RETAA/RETAB */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(g_ArmV8A64Ret) DIS_ARMV8_OP(0xfffffc1f, 0xd65f0000, "ret", OP_ARMV8_A64_RET, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0xfffffc1f, 0xd65f0800, "retaa", OP_ARMV8_A64_RETAA, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0xfffffc1f, 0xd65f0c00, "retab", OP_ARMV8_A64_RETAB, DISOPTYPE_HARMLESS), DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_PARAMS_1(g_ArmV8A64Ret, DISARMV8INSNCLASS_F_FORCED_64BIT, kDisArmV8OpcDecodeLookup, 0xfffffc1f, 0, kDisArmv8OpParmGpr) DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseReg, 5, 5, 0 /*idxParam*/), DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_END; /* Unconditional branch (register) instructions, we divide these instructions further based on the opc field. */ DIS_ARMV8_DECODE_MAP_DEFINE_BEGIN(g_ArmV8A64UncondBrReg) DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, DIS_ARMV8_DECODE_MAP_ENTRY(g_ArmV8A64Ret), /* RET/RETAA/RETAB */ DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, DIS_ARMV8_DECODE_MAP_INVALID_ENTRY DIS_ARMV8_DECODE_MAP_DEFINE_END(g_ArmV8A64UncondBrReg, RT_BIT_32(21) | RT_BIT_32(22) | RT_BIT_32(23) | RT_BIT_32(24), 21); /* B/BL */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(g_ArmV8A64UncondBrImm) DIS_ARMV8_OP(0xfc000000, 0x14000000, "b", OP_ARMV8_A64_B, DISOPTYPE_HARMLESS | DISOPTYPE_CONTROLFLOW), DIS_ARMV8_OP(0xfc000000, 0x94000000, "bl", OP_ARMV8_A64_BL, DISOPTYPE_HARMLESS | DISOPTYPE_CONTROLFLOW), DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_PARAMS_1(g_ArmV8A64UncondBrImm, 0 /*fClass*/, kDisArmV8OpcDecodeNop, RT_BIT_32(31), 31, kDisArmv8OpParmImmRel) DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseImmRel, 0, 26, 0 /*idxParam*/), DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_END; /* CBZ/CBNZ */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(g_ArmV8A64CmpBrImm) DIS_ARMV8_OP(0x7f000000, 0x34000000, "cbz", OP_ARMV8_A64_CBZ, DISOPTYPE_HARMLESS | DISOPTYPE_CONTROLFLOW), DIS_ARMV8_OP(0x7f000000, 0x35000000, "cbnz", OP_ARMV8_A64_CBNZ, DISOPTYPE_HARMLESS | DISOPTYPE_CONTROLFLOW), DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_PARAMS_2(g_ArmV8A64CmpBrImm, DISARMV8INSNCLASS_F_SF, kDisArmV8OpcDecodeNop, RT_BIT_32(24), 24, kDisArmv8OpParmGpr, kDisArmv8OpParmImmRel) DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseReg, 0, 5, 0 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseImmRel, 5, 19, 1 /*idxParam*/), DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_END; /* TBZ/TBNZ */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(g_ArmV8A64TestBrImm) DIS_ARMV8_OP(0x7f000000, 0x36000000, "tbz", OP_ARMV8_A64_TBZ, DISOPTYPE_HARMLESS | DISOPTYPE_CONTROLFLOW), DIS_ARMV8_OP(0x7f000000, 0x37000000, "tbnz", OP_ARMV8_A64_TBNZ, DISOPTYPE_HARMLESS | DISOPTYPE_CONTROLFLOW), DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_PARAMS_3(g_ArmV8A64TestBrImm, DISARMV8INSNCLASS_F_SF, /* Not an SF bit but has the same meaning. */ kDisArmV8OpcDecodeNop, RT_BIT_32(24), 24, kDisArmv8OpParmGpr, kDisArmv8OpParmImm, kDisArmv8OpParmImmRel) DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseReg, 0, 5, 0 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseImmTbz, 0, 0, 1 /*idxParam*/), /* Hardcoded bit offsets in parser. */ DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseImmRel, 5, 14, 2 /*idxParam*/), DIS_ARMV8_INSN_PARAM_NONE, DIS_ARMV8_INSN_PARAM_NONE DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_END; DIS_ARMV8_DECODE_TBL_DEFINE_BEGIN(g_ArmV8A64BrExcpSys) DIS_ARMV8_DECODE_TBL_ENTRY_INIT(0xfe000000, RT_BIT_32(26) | RT_BIT_32(28) | RT_BIT_32(30), g_ArmV8A64CondBr), /* op0: 010, op1: 0xxxxxxxxxxxxx, op2: - (including o1 from the conditional branch (immediate) class to save us one layer). */ DIS_ARMV8_DECODE_TBL_ENTRY_INIT(0xff000000, RT_BIT_32(26) | RT_BIT_32(28) | RT_BIT_32(30) | RT_BIT_32(31), g_ArmV8A64Excp), /* op0: 110, op1: 00xxxxxxxxxxxx, op2: -. */ DIS_ARMV8_DECODE_TBL_ENTRY_INIT(0xfffff000, 0xd5031000, g_ArmV8A64SysReg), /* op0: 110, op1: 01000000110001, op2: -. */ DIS_ARMV8_DECODE_TBL_ENTRY_INIT(0xfffff01f, 0xd503201f, g_ArmV8A64Hints), /* op0: 110, op1: 01000000110010, op2: 11111. */ DIS_ARMV8_DECODE_TBL_ENTRY_INIT(0xfffff01f, 0xd503301f, g_ArmV8A64DecodeBarriers), /* op0: 110, op1: 01000000110011, op2: - (we include Rt: 11111 from the next stage here). */ DIS_ARMV8_DECODE_TBL_ENTRY_INIT(0xfff8f01f, 0xd500401f, g_ArmV8A64PState), /* op0: 110, op1: 0100000xxx0100, op2: - (we include Rt: 11111 from the next stage here). */ DIS_ARMV8_DECODE_TBL_ENTRY_INIT(0xfffff0e0, 0xd5233060, g_ArmV8A64SysResult), /* op0: 110, op1: 0100100xxxxxxx, op2: - (we include op1, CRn and op2 from the next stage here). */ DIS_ARMV8_DECODE_TBL_ENTRY_INIT(0xfff80000, 0xd5080000, g_ArmV8A64Sys), /* op0: 110, op1: 0100x01xxxxxxx, op2: - (we include the L field of the next stage here to differentiate between SYS/SYSL as they have a different string representation). */ DIS_ARMV8_DECODE_TBL_ENTRY_INIT(0xfff80000, 0xd5280000, g_ArmV8A64SysL), /* op0: 110, op1: 0100x01xxxxxxx, op2: - (we include the L field of the next stage here to differentiate between SYS/SYSL as they have a different string representation). */ DIS_ARMV8_DECODE_TBL_ENTRY_INIT(0xfff00000, 0xd5100000, g_ArmV8A64Msr), /* op0: 110, op1: 0100x1xxxxxxxx, op2: - (we include the L field of the next stage here to differentiate between MSR/MRS as they have a different string representation). */ DIS_ARMV8_DECODE_TBL_ENTRY_INIT(0xfff00000, 0xd5300000, g_ArmV8A64Mrs), /* op0: 110, op1: 0100x1xxxxxxxx, op2: - (we include the L field of the next stage here to differentiate between MSR/MRS as they have a different string representation). */ DIS_ARMV8_DECODE_TBL_ENTRY_INIT(0xfe1f0000, 0xd61f0000, g_ArmV8A64UncondBrReg), /* op0: 110, op1: 1xxxxxxxxxxxxx, op2: - (we include the op2 field from the next stage here as it should be always 11111). */ DIS_ARMV8_DECODE_TBL_ENTRY_INIT(0x7c000000, 0x14000000, g_ArmV8A64UncondBrImm), /* op0: x00, op1: xxxxxxxxxxxxxx, op2: -. */ DIS_ARMV8_DECODE_TBL_ENTRY_INIT(0x7e000000, 0x34000000, g_ArmV8A64CmpBrImm), /* op0: x01, op1: 0xxxxxxxxxxxxx, op2: -. */ DIS_ARMV8_DECODE_TBL_ENTRY_INIT(0x7e000000, 0x36000000, g_ArmV8A64TestBrImm), /* op0: x01, op1: 1xxxxxxxxxxxxx, op2: -. */ DIS_ARMV8_DECODE_TBL_DEFINE_END(g_ArmV8A64BrExcpSys); /* AND/ORR/EOR/ANDS */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(g_aArmV8A64InsnLogShiftRegN0) DIS_ARMV8_OP(0x7f200000, 0x0a000000, "and", OP_ARMV8_A64_AND, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0x7f200000, 0x2a000000, "orr", OP_ARMV8_A64_ORR, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0x7f200000, 0x4a000000, "eor", OP_ARMV8_A64_EOR, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0x7f200000, 0x6a000000, "ands", OP_ARMV8_A64_ANDS, DISOPTYPE_HARMLESS) DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_PARAMS_3(g_aArmV8A64InsnLogShiftRegN0, DISARMV8INSNCLASS_F_SF, kDisArmV8OpcDecodeNop, RT_BIT_32(29) | RT_BIT_32(30), 29, kDisArmv8OpParmGpr, kDisArmv8OpParmGpr, kDisArmv8OpParmGpr) DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseReg, 0, 5, 0 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseReg, 5, 5, 1 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseReg, 16, 5, 2 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseShift, 22, 2, 2 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseShiftAmount, 10, 6, 2 /*idxParam*/), DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_END; /* AND/ORR/EOR/ANDS */ DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(g_aArmV8A64InsnLogShiftRegN1) DIS_ARMV8_OP(0x7f200000, 0x0a200000, "bic", OP_ARMV8_A64_BIC, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0x7f200000, 0x2a200000, "orn", OP_ARMV8_A64_ORN, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0x7f200000, 0x4a200000, "eon", OP_ARMV8_A64_EON, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0x7f200000, 0x6a200000, "bics", OP_ARMV8_A64_BICS, DISOPTYPE_HARMLESS) DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_PARAMS_3(g_aArmV8A64InsnLogShiftRegN1, DISARMV8INSNCLASS_F_SF, kDisArmV8OpcDecodeNop, RT_BIT_32(29) | RT_BIT_32(30), 29, kDisArmv8OpParmGpr, kDisArmv8OpParmGpr, kDisArmv8OpParmGpr) DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseReg, 0, 5, 0 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseReg, 5, 5, 1 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseReg, 16, 5, 2 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseShift, 22, 2, 2 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE(kDisParmParseShiftAmount, 10, 6, 2 /*idxParam*/), DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_END; DIS_ARMV8_DECODE_MAP_DEFINE_BEGIN(g_aArmV8A64InsnLogShiftRegN) DIS_ARMV8_DECODE_MAP_ENTRY(g_aArmV8A64InsnLogShiftRegN0), /* Logical (shifted register) - N = 0 */ DIS_ARMV8_DECODE_MAP_ENTRY(g_aArmV8A64InsnLogShiftRegN1), /* Logical (shifted register) - N = 1 */ DIS_ARMV8_DECODE_MAP_DEFINE_END(g_aArmV8A64InsnLogShiftRegN, RT_BIT_32(21), 21); DIS_ARMV8_DECODE_MAP_DEFINE_BEGIN(g_ArmV8A64LogicalAddSubReg) DIS_ARMV8_DECODE_MAP_ENTRY(g_aArmV8A64InsnLogShiftRegN), /* Logical (shifted register) */ DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, /* Add/subtract (shifted/extended register) */ DIS_ARMV8_DECODE_MAP_DEFINE_END(g_ArmV8A64LogicalAddSubReg, RT_BIT_32(24), 24); DIS_ARMV8_DECODE_MAP_DEFINE_BEGIN(g_ArmV8A64DataProcReg) DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, DIS_ARMV8_DECODE_MAP_DEFINE_END(g_ArmV8A64DataProcReg, RT_BIT_32(24), 24); DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_BEGIN(g_ArmV8A64LdSt) DIS_ARMV8_OP(0xbfc00000, 0xb9400000, "ldr", OP_ARMV8_A64_LDR, DISOPTYPE_HARMLESS), DIS_ARMV8_OP(0xbfc00000, 0xb9000000, "str", OP_ARMV8_A64_STR, DISOPTYPE_HARMLESS), DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_PARAMS_2(g_ArmV8A64LdSt, 0 /*fClass*/, kDisArmV8OpcDecodeLookup, 0xbfc00000, 0, kDisArmv8OpParmGpr, kDisArmv8OpParmAddrInGpr) DIS_ARMV8_INSN_PARAM_CREATE( kDisParmParseIs32Bit, 30, 1, DIS_ARMV8_INSN_PARAM_UNSET), DIS_ARMV8_INSN_PARAM_CREATE( kDisParmParseReg, 0, 5, 0 /*idxParam*/), DIS_ARMV8_INSN_PARAM_CREATE_EX(kDisParmParseReg, 5, 5, 1 /*idxParam*/, DIS_ARMV8_INSN_PARAM_F_ADDR_BEGIN), DIS_ARMV8_INSN_PARAM_CREATE_EX(kDisParmParseImm, 10, 12, 2 /*idxParam*/, DIS_ARMV8_INSN_PARAM_F_ADDR_END), DIS_ARMV8_INSN_PARAM_NONE DIS_ARMV8_DECODE_INSN_CLASS_DEFINE_END; /* * C4.1 of the ARMv8 architecture reference manual has the following table for the * topmost decoding level (Level 0 in our terms), x means don't care: * * Bit 28 27 26 25 * +------------------------------------------- * 0 0 0 0 Reserved or SME encoding (depends on bit 31). * 0 0 0 1 UNALLOC * 0 0 1 0 SVE encodings * 0 0 1 1 UNALLOC * 1 0 0 x Data processing immediate * 1 0 1 x Branch, exception generation and system instructions * x 1 x 0 Loads and stores * x 1 0 1 Data processing - register * x 1 1 1 Data processing - SIMD and floating point * * In order to save us some fiddling with the don't care bits we blow up the lookup table * which gives us 16 possible values (4 bits) we can use as an index into the decoder * lookup table for the next level: * Bit 28 27 26 25 * +------------------------------------------- * 0 0 0 0 0 Reserved or SME encoding (depends on bit 31). * 1 0 0 0 1 UNALLOC * 2 0 0 1 0 SVE encodings * 3 0 0 1 1 UNALLOC * 4 0 1 0 0 Loads and stores * 5 0 1 0 1 Data processing - register (using op1 (bit 28) from the next stage to differentiate further already) * 6 0 1 1 0 Loads and stores * 7 0 1 1 1 Data processing - SIMD and floating point * 8 1 0 0 0 Data processing immediate * 9 1 0 0 1 Data processing immediate * 10 1 0 1 0 Branch, exception generation and system instructions * 11 1 0 1 1 Branch, exception generation and system instructions * 12 1 1 0 0 Loads and stores * 13 1 1 0 1 Data processing - register (using op1 (bit 28) from the next stage to differentiate further already) * 14 1 1 1 0 Loads and stores * 15 1 1 1 1 Data processing - SIMD and floating point */ DIS_ARMV8_DECODE_MAP_DEFINE_BEGIN(g_ArmV8A64DecodeL0) DIS_ARMV8_DECODE_MAP_ENTRY(g_aArmV8A64InsnRsvd), /* Reserved class or SME encoding (@todo). */ DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, /* Unallocated */ DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, /** @todo SVE */ DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, /* Unallocated */ DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, /* Load/Stores */ DIS_ARMV8_DECODE_MAP_ENTRY(g_ArmV8A64LogicalAddSubReg), /* Data processing (register) (see op1 in C4.1.68). */ DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, /* Load/Stores */ DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, /* Data processing (SIMD & FP) */ DIS_ARMV8_DECODE_MAP_ENTRY(g_aArmV8A64InsnDataProcessingImm), /* Data processing (immediate). */ DIS_ARMV8_DECODE_MAP_ENTRY(g_aArmV8A64InsnDataProcessingImm), /* Data processing (immediate). */ DIS_ARMV8_DECODE_MAP_ENTRY(g_ArmV8A64BrExcpSys), /* Branches / Exception generation and system instructions. */ DIS_ARMV8_DECODE_MAP_ENTRY(g_ArmV8A64BrExcpSys), /* Branches / Exception generation and system instructions. */ DIS_ARMV8_DECODE_MAP_ENTRY(g_ArmV8A64LdSt), /* Load/Stores. */ DIS_ARMV8_DECODE_MAP_ENTRY(g_ArmV8A64DataProcReg), /* Data processing (register) (see op1 in C4.1.68). */ DIS_ARMV8_DECODE_MAP_INVALID_ENTRY, /* Load/Stores. */ DIS_ARMV8_DECODE_MAP_INVALID_ENTRY /* Data processing (SIMD & FP). */ DIS_ARMV8_DECODE_MAP_DEFINE_END_NON_STATIC(g_ArmV8A64DecodeL0, RT_BIT_32(25) | RT_BIT_32(26) | RT_BIT_32(27) | RT_BIT_32(28), 25);