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// license:BSD-3-Clause
// copyright-holders:AJR
#ifndef MAME_CPU_M68HC16_CPU16DASM_H
#define MAME_CPU_M68HC16_CPU16DASM_H
#pragma once
#include <string_view>
class cpu16_disassembler : public util::disasm_interface
{
public:
// construction/destruction
cpu16_disassembler();
protected:
// disassembler overrides
virtual u32 opcode_alignment() const override;
virtual offs_t disassemble(std::ostream &stream, offs_t pc, const data_buffer &opcodes, const data_buffer ¶ms) override;
private:
enum class mode
{
UND,
INH,
IMM,
IMMS,
REGM,
XYO,
IND,
IND20,
EXT,
EXT20,
E,
REL,
BIT,
BIT16,
IXP
};
struct opcode_info
{
std::string_view m_name;
mode m_mode;
offs_t m_flags;
};
// internal helpers
void format_signed(std::ostream &stream, u16 value);
void format_index8(std::ostream &stream, u8 offset, char reg);
void format_index16(std::ostream &stream, u16 offset, char reg);
// internal tables
static const opcode_info s_opinfo[4][256];
static const std::string_view s_regset[7];
};
#endif // MAME_CPU_M68HC16_CPU16DASM_H
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