diff options
Diffstat (limited to 'src/devices/cpu/upd177x/upd177xd.h')
-rw-r--r-- | src/devices/cpu/upd177x/upd177xd.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/devices/cpu/upd177x/upd177xd.h b/src/devices/cpu/upd177x/upd177xd.h new file mode 100644 index 00000000000..7cefe63aec0 --- /dev/null +++ b/src/devices/cpu/upd177x/upd177xd.h @@ -0,0 +1,41 @@ +// license:BSD-3-Clause +// copyright-holders:Olivier Galibert + +// upd177X disassembler + +#ifndef MAME_CPU_UPD177X_UPD177XD_H +#define MAME_CPU_UPD177X_UPD177XD_H + +#pragma once + +class upd177x_disassembler : public util::disasm_interface +{ +public: + upd177x_disassembler() = default; + virtual ~upd177x_disassembler() = default; + + 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: + struct instruction { + u16 value; + u16 mask; + u32 (*cb)(std::ostream &, u16, u16); + }; + + static const instruction instructions[]; + + static std::string reg4(u16 opcode); + static std::string reg9(u16 opcode); + static std::string imm8(u16 opcode); + static std::string imm7(u16 opcode); + static std::string imm6(u16 opcode); + static std::string imm4(u16 opcode); + static std::string imm3_5(u16 opcode); + static std::string abs12(u16 opcode, u16 pc); + static std::string abs8(u16 opcode, u16 pc); + static std::string abs4_4(u16 opcode, u16 pc); +}; + +#endif // MAME_CPU_upd177X_upd177XD_H |