1 //===-- llvm/MC/MCFixedLenDisassembler.h - Decoder driver -------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // Fixed length disassembler decoder state machine driver. 9 //===----------------------------------------------------------------------===// 10 #ifndef LLVM_MC_MCFIXEDLENDISASSEMBLER_H 11 #define LLVM_MC_MCFIXEDLENDISASSEMBLER_H 12 13 namespace llvm { 14 15 namespace MCD { 16 // Disassembler state machine opcodes. 17 enum DecoderOps { 18 OPC_ExtractField = 1, // OPC_ExtractField(uint8_t Start, uint8_t Len) 19 OPC_FilterValue, // OPC_FilterValue(uleb128 Val, uint16_t NumToSkip) 20 OPC_CheckField, // OPC_CheckField(uint8_t Start, uint8_t Len, 21 // uleb128 Val, uint16_t NumToSkip) 22 OPC_CheckPredicate, // OPC_CheckPredicate(uleb128 PIdx, uint16_t NumToSkip) 23 OPC_Decode, // OPC_Decode(uleb128 Opcode, uleb128 DIdx) 24 OPC_TryDecode, // OPC_TryDecode(uleb128 Opcode, uleb128 DIdx, 25 // uint16_t NumToSkip) 26 OPC_SoftFail, // OPC_SoftFail(uleb128 PMask, uleb128 NMask) 27 OPC_Fail // OPC_Fail() 28 }; 29 30 } // namespace MCDecode 31 } // namespace llvm 32 33 #endif 34