diff options
Diffstat (limited to 'src/devices/cpu/pic16/pic16d.h')
-rw-r--r-- | src/devices/cpu/pic16/pic16d.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/devices/cpu/pic16/pic16d.h b/src/devices/cpu/pic16/pic16d.h new file mode 100644 index 00000000000..8ebde81740c --- /dev/null +++ b/src/devices/cpu/pic16/pic16d.h @@ -0,0 +1,40 @@ +// license:BSD-3-Clause +// copyright-holders:Olivier Galibert + +// PIC16 generic disassembler, with extended opcodes + +#ifndef MAME_CPU_PIC16_PIC16D_H +#define MAME_CPU_PIC16_PIC16D_H + +#pragma once + +class pic16_disassembler : public util::disasm_interface +{ +public: + pic16_disassembler() = default; + virtual ~pic16_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 &, const pic16_disassembler *, u16, u16); + }; + + static const instruction instructions[]; + + std::string freg(u16 opcode) const; + static char fw(u16 opcode); + static std::string imm8(u16 opcode); + static std::string imm7(u16 opcode); + static std::string imm6(u16 opcode); + static std::string imm6s(u16 opcode); + static std::string imm5(u16 opcode); + static std::string rel9(u16 opcode, u16 pc); + std::string abs11(u16 opcode, u16 pc) const; +}; + +#endif // MAME_CPU_PIC16_PIC16D_H |