llvm/llvm/lib/Target/MSP430/Disassembler/MSP430Disassembler.cpp

//===-- MSP430Disassembler.cpp - Disassembler for MSP430 ------------------===//
//
// 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 MSP430Disassembler class.
//
//===----------------------------------------------------------------------===//

#include "MCTargetDesc/MSP430MCTargetDesc.h"
#include "MSP430.h"
#include "TargetInfo/MSP430TargetInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCDecoderOps.h"
#include "llvm/MC/MCDisassembler/MCDisassembler.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/MC/TargetRegistry.h"
#include "llvm/Support/Endian.h"

usingnamespacellvm;

#define DEBUG_TYPE …

DecodeStatus;

namespace {
class MSP430Disassembler : public MCDisassembler { … };
} // end anonymous namespace

static MCDisassembler *createMSP430Disassembler(const Target &T,
                                                const MCSubtargetInfo &STI,
                                                MCContext &Ctx) { … }

extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeMSP430Disassembler() { … }

static const unsigned GR8DecoderTable[] = …;

static DecodeStatus DecodeGR8RegisterClass(MCInst &MI, uint64_t RegNo,
                                           uint64_t Address,
                                           const MCDisassembler *Decoder) { … }

static const unsigned GR16DecoderTable[] = …;

static DecodeStatus DecodeGR16RegisterClass(MCInst &MI, uint64_t RegNo,
                                            uint64_t Address,
                                            const MCDisassembler *Decoder) { … }

static DecodeStatus DecodeCGImm(MCInst &MI, uint64_t Bits, uint64_t Address,
                                const MCDisassembler *Decoder);

static DecodeStatus DecodeMemOperand(MCInst &MI, uint64_t Bits,
                                     uint64_t Address,
                                     const MCDisassembler *Decoder);

#include "MSP430GenDisassemblerTables.inc"

static DecodeStatus DecodeCGImm(MCInst &MI, uint64_t Bits, uint64_t Address,
                                const MCDisassembler *Decoder) { … }

static DecodeStatus DecodeMemOperand(MCInst &MI, uint64_t Bits,
                                     uint64_t Address,
                                     const MCDisassembler *Decoder) { … }

enum AddrMode { … };

static AddrMode DecodeSrcAddrMode(unsigned Rs, unsigned As) { … }

static AddrMode DecodeSrcAddrModeI(unsigned Insn) { … }

static AddrMode DecodeSrcAddrModeII(unsigned Insn) { … }

static AddrMode DecodeDstAddrMode(unsigned Insn) { … }

static const uint8_t *getDecoderTable(AddrMode SrcAM, unsigned Words) { … }

DecodeStatus MSP430Disassembler::getInstructionI(MCInst &MI, uint64_t &Size,
                                                 ArrayRef<uint8_t> Bytes,
                                                 uint64_t Address,
                                                 raw_ostream &CStream) const { … }

DecodeStatus MSP430Disassembler::getInstructionII(MCInst &MI, uint64_t &Size,
                                                  ArrayRef<uint8_t> Bytes,
                                                  uint64_t Address,
                                                  raw_ostream &CStream) const { … }

static MSP430CC::CondCodes getCondCode(unsigned Cond) { … }

DecodeStatus MSP430Disassembler::getInstructionCJ(MCInst &MI, uint64_t &Size,
                                                  ArrayRef<uint8_t> Bytes,
                                                  uint64_t Address,
                                                  raw_ostream &CStream) const { … }

DecodeStatus MSP430Disassembler::getInstruction(MCInst &MI, uint64_t &Size,
                                                ArrayRef<uint8_t> Bytes,
                                                uint64_t Address,
                                                raw_ostream &CStream) const { … }