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1 //===-- llvm/MC/MCFixedLenDisassembler.h - Decoder driver -------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 // Fixed length disassembler decoder state machine driver.
10 //===----------------------------------------------------------------------===//
11 #ifndef LLVM_MC_MCFIXEDLENDISASSEMBLER_H
12 #define LLVM_MC_MCFIXEDLENDISASSEMBLER_H
13
14 namespace llvm {
15
16 namespace MCD {
17 // Disassembler state machine opcodes.
18 enum DecoderOps {
19   OPC_ExtractField = 1, // OPC_ExtractField(uint8_t Start, uint8_t Len)
20   OPC_FilterValue,      // OPC_FilterValue(uleb128 Val, uint16_t NumToSkip)
21   OPC_CheckField,       // OPC_CheckField(uint8_t Start, uint8_t Len,
22                         //                uleb128 Val, uint16_t NumToSkip)
23   OPC_CheckPredicate,   // OPC_CheckPredicate(uleb128 PIdx, uint16_t NumToSkip)
24   OPC_Decode,           // OPC_Decode(uleb128 Opcode, uleb128 DIdx)
25   OPC_TryDecode,        // OPC_TryDecode(uleb128 Opcode, uleb128 DIdx,
26                         //               uint16_t NumToSkip)
27   OPC_SoftFail,         // OPC_SoftFail(uleb128 PMask, uleb128 NMask)
28   OPC_Fail              // OPC_Fail()
29 };
30
31 } // namespace MCDecode
32 } // namespace llvm
33
34 #endif