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| Original file line number | Diff line number | Diff line change |
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| /* Capstone Disassembly Engine, http://www.capstone-engine.org */ | ||
| /* By Nguyen Anh Quynh <[email protected]>, 2013-2022, */ | ||
| /* Rot127 <[email protected]> 2022-2023 */ | ||
| /* Automatically translated source file from LLVM. */ | ||
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| /* LLVM-commit: <commit> */ | ||
| /* LLVM-tag: <tag> */ | ||
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| /* Only small edits allowed. */ | ||
| /* For multiple similar edits, please create a Patch for the translator. */ | ||
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| /* Capstone's C++ file translator: */ | ||
| /* https://github.com/capstone-engine/capstone/tree/next/suite/auto-sync */ | ||
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| //===-- LoongArchDisassembler.cpp - Disassembler for LoongArch ------------===// | ||
| // | ||
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | ||
| // See https://llvm.org/LICENSE.txt for license information. | ||
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
| // | ||
| // This file implements the LoongArchDisassembler class. | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
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| #include <stdio.h> | ||
| #include <string.h> | ||
| #include <stdlib.h> | ||
| #include <capstone/platform.h> | ||
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| #include "../../MCInst.h" | ||
| #include "../../MathExtras.h" | ||
| #include "../../MCInstPrinter.h" | ||
| #include "../../MCDisassembler.h" | ||
| #include "../../MCFixedLenDisassembler.h" | ||
| #include "../../cs_priv.h" | ||
| #include "../../utils.h" | ||
| #include "LoongArchDisassemblerExtension.h" | ||
| #define GET_SUBTARGETINFO_ENUM | ||
| #include "LoongArchGenSubtargetInfo.inc" | ||
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| #define GET_INSTRINFO_ENUM | ||
| #include "LoongArchGenInstrInfo.inc" | ||
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| #define GET_REGINFO_ENUM | ||
| #include "LoongArchGenRegisterInfo.inc" | ||
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| #define CONCAT(a, b) CONCAT_(a, b) | ||
| #define CONCAT_(a, b) a##_##b | ||
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| #define DEBUG_TYPE "loongarch-disassembler" | ||
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| static DecodeStatus DecodeGPRRegisterClass(MCInst *Inst, uint64_t RegNo, | ||
| uint64_t Address, | ||
| const void *Decoder) | ||
| { | ||
| if (RegNo >= 32) | ||
| return MCDisassembler_Fail; | ||
| MCOperand_CreateReg0(Inst, (LoongArch_R0 + RegNo)); | ||
| return MCDisassembler_Success; | ||
| } | ||
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| static DecodeStatus DecodeFPR32RegisterClass(MCInst *Inst, uint64_t RegNo, | ||
| uint64_t Address, | ||
| const void *Decoder) | ||
| { | ||
| if (RegNo >= 32) | ||
| return MCDisassembler_Fail; | ||
| MCOperand_CreateReg0(Inst, (LoongArch_F0 + RegNo)); | ||
| return MCDisassembler_Success; | ||
| } | ||
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| static DecodeStatus DecodeFPR64RegisterClass(MCInst *Inst, uint64_t RegNo, | ||
| uint64_t Address, | ||
| const void *Decoder) | ||
| { | ||
| if (RegNo >= 32) | ||
| return MCDisassembler_Fail; | ||
| MCOperand_CreateReg0(Inst, (LoongArch_F0_64 + RegNo)); | ||
| return MCDisassembler_Success; | ||
| } | ||
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| static DecodeStatus DecodeCFRRegisterClass(MCInst *Inst, uint64_t RegNo, | ||
| uint64_t Address, | ||
| const void *Decoder) | ||
| { | ||
| if (RegNo >= 8) | ||
| return MCDisassembler_Fail; | ||
| MCOperand_CreateReg0(Inst, (LoongArch_FCC0 + RegNo)); | ||
| return MCDisassembler_Success; | ||
| } | ||
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| static DecodeStatus DecodeFCSRRegisterClass(MCInst *Inst, uint64_t RegNo, | ||
| uint64_t Address, | ||
| const void *Decoder) | ||
| { | ||
| if (RegNo >= 4) | ||
| return MCDisassembler_Fail; | ||
| MCOperand_CreateReg0(Inst, (LoongArch_FCSR0 + RegNo)); | ||
| return MCDisassembler_Success; | ||
| } | ||
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| static DecodeStatus DecodeLSX128RegisterClass(MCInst *Inst, uint64_t RegNo, | ||
| uint64_t Address, | ||
| const void *Decoder) | ||
| { | ||
| if (RegNo >= 32) | ||
| return MCDisassembler_Fail; | ||
| MCOperand_CreateReg0(Inst, (LoongArch_VR0 + RegNo)); | ||
| return MCDisassembler_Success; | ||
| } | ||
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| static DecodeStatus DecodeLASX256RegisterClass(MCInst *Inst, uint64_t RegNo, | ||
| uint64_t Address, | ||
| const void *Decoder) | ||
| { | ||
| if (RegNo >= 32) | ||
| return MCDisassembler_Fail; | ||
| MCOperand_CreateReg0(Inst, (LoongArch_XR0 + RegNo)); | ||
| return MCDisassembler_Success; | ||
| } | ||
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| static DecodeStatus DecodeSCRRegisterClass(MCInst *Inst, uint64_t RegNo, | ||
| uint64_t Address, | ||
| const void *Decoder) | ||
| { | ||
| if (RegNo >= 4) | ||
| return MCDisassembler_Fail; | ||
| MCOperand_CreateReg0(Inst, (LoongArch_SCR0 + RegNo)); | ||
| return MCDisassembler_Success; | ||
| } | ||
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| #define DEFINE_decodeUImmOperand(N, P) \ | ||
| static DecodeStatus CONCAT(decodeUImmOperand, CONCAT(N, P))( \ | ||
| MCInst * Inst, uint64_t Imm, int64_t Address, \ | ||
| const void *Decoder) \ | ||
| { \ | ||
| MCOperand_CreateImm0(Inst, (Imm + P)); \ | ||
| return MCDisassembler_Success; \ | ||
| } | ||
| DEFINE_decodeUImmOperand(2, 1); | ||
| DEFINE_decodeUImmOperand(12, 0); | ||
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| #define DEFINE_decodeSImmOperand(N, S) \ | ||
| static DecodeStatus CONCAT(decodeSImmOperand, CONCAT(N, S))( \ | ||
| MCInst * Inst, uint64_t Imm, int64_t Address, \ | ||
| const void *Decoder) \ | ||
| { \ | ||
| MCOperand_CreateImm0(Inst, (SignExtend64((Imm << S), N + S))); \ | ||
| return MCDisassembler_Success; \ | ||
| } | ||
| DEFINE_decodeSImmOperand(5, 0); | ||
| DEFINE_decodeSImmOperand(12, 0); | ||
| DEFINE_decodeSImmOperand(16, 0); | ||
| DEFINE_decodeSImmOperand(20, 0); | ||
| DEFINE_decodeSImmOperand(14, 2); | ||
| DEFINE_decodeSImmOperand(9, 3); | ||
| DEFINE_decodeSImmOperand(10, 2); | ||
| DEFINE_decodeSImmOperand(11, 1); | ||
| DEFINE_decodeSImmOperand(8, 3); | ||
| DEFINE_decodeSImmOperand(8, 2); | ||
| DEFINE_decodeSImmOperand(8, 1); | ||
| DEFINE_decodeSImmOperand(8, 0); | ||
| DEFINE_decodeSImmOperand(21, 2); | ||
| DEFINE_decodeSImmOperand(16, 2); | ||
| DEFINE_decodeSImmOperand(26, 2); | ||
| DEFINE_decodeSImmOperand(13, 0); | ||
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| #include "LoongArchGenDisassemblerTables.inc" | ||
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| DecodeStatus LoongArch_LLVM_getInstruction(MCInst *MI, uint64_t *Size, | ||
| const uint8_t *Bytes, | ||
| size_t BytesLen, uint64_t Address, | ||
| SStream *CS) | ||
| { | ||
| uint32_t Insn; | ||
| DecodeStatus Result; | ||
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| // We want to read exactly 4 bytes of data because all LoongArch instructions | ||
| // are fixed 32 bits. | ||
| if (BytesLen < 4) { | ||
| *Size = 0; | ||
| return MCDisassembler_Fail; | ||
| } | ||
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| Insn = readBytes32(MI, Bytes); | ||
| // Calling the auto-generated decoder function. | ||
| Result = decodeInstruction_4(DecoderTable32, MI, Insn, Address, NULL); | ||
| *Size = 4; | ||
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| return Result; | ||
| } |
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