diff options
Diffstat (limited to 'src/devices/cpu/mcs96/mcs96d.h')
-rw-r--r-- | src/devices/cpu/mcs96/mcs96d.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/src/devices/cpu/mcs96/mcs96d.h b/src/devices/cpu/mcs96/mcs96d.h new file mode 100644 index 00000000000..453727258bf --- /dev/null +++ b/src/devices/cpu/mcs96/mcs96d.h @@ -0,0 +1,64 @@ +// license:BSD-3-Clause +// copyright-holders:Olivier Galibert, R. Belmont +/*************************************************************************** + + mcs96.h + + MCS96 + +***************************************************************************/ + +#ifndef MAME_CPU_MCS96_MCS96D_H +#define MAME_CPU_MCS96_MCS96D_H + +#pragma once + +class mcs96_disassembler : public util::disasm_interface +{ +public: + struct disasm_entry { + const char *opcode, *opcode_fe; + int mode; + offs_t flags; + }; + + mcs96_disassembler(const disasm_entry *entries); + virtual ~mcs96_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; + +protected: + enum { + DASM_none, /* No parameters */ + DASM_nop_2, /* One ignored parameter byte */ + DASM_rel8, /* Relative, 8 bits */ + DASM_rel11, /* Relative, 11 bits */ + DASM_rel16, /* Relative, 16 bits */ + DASM_rrel8, /* Register + relative, 8 bits */ + DASM_brrel8, /* Bit test + register + relative, 8 bits */ + DASM_direct_1, /* Register-direct references, 1 operator */ + DASM_direct_2, /* Register-direct references, 2 operators */ + DASM_direct_3, /* Register-direct references, 3 operators */ + DASM_immed_1b, /* Immediate references to byte, 1 operator */ + DASM_immed_2b, /* Immediate references to byte, 2 operators */ + DASM_immed_or_reg_2b, /* Immediate references to byte or register, 2 operators */ + DASM_immed_3b, /* Immediate references to byte, 3 operators */ + DASM_immed_1w, /* Immediate references to word, 1 operator */ + DASM_immed_2w, /* Immediate references to word, 2 operators */ + DASM_immed_3w, /* Immediate references to word, 3 operators */ + DASM_indirect_1n, /* Indirect normal, 1 operator */ + DASM_indirect_1, /* Indirect, normal or auto-incrementing, 1 operator */ + DASM_indirect_2, /* Indirect, normal or auto-incrementing, 2 operators */ + DASM_indirect_3, /* Indirect, normal or auto-incrementing, 3 operators */ + DASM_indexed_1, /* Indexed, short or long, 1 operator */ + DASM_indexed_2, /* Indexed, short or long, 2 operators */ + DASM_indexed_3 /* Indexed, short or long, 3 operators */ + }; + + const disasm_entry *m_entries; + + static std::string regname(uint8_t reg); +}; + +#endif |