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