diff options
Diffstat (limited to 'src/devices/cpu/cr16b/cr16bdasm.h')
-rw-r--r-- | src/devices/cpu/cr16b/cr16bdasm.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/devices/cpu/cr16b/cr16bdasm.h b/src/devices/cpu/cr16b/cr16bdasm.h new file mode 100644 index 00000000000..e8e96ed1a67 --- /dev/null +++ b/src/devices/cpu/cr16b/cr16bdasm.h @@ -0,0 +1,66 @@ +// license:BSD-3-Clause +// copyright-holders:AJR + +#ifndef MAME_CPU_CR16B_CR16BDASM_H +#define MAME_CPU_CR16B_CR16BDASM_H 1 + +#pragma once + +class cr16b_disassembler : public util::disasm_interface +{ +public: + // construction/destruction + cr16b_disassembler(); + + // 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; + +protected: + enum cr16_arch + { + CR16A, + CR16B + }; + + cr16b_disassembler(cr16_arch arch); + + // internal helpers + void format_reg(std::ostream &stream, u8 reg); + void format_rpair(std::ostream &stream, u8 reg); + virtual void format_rproc(std::ostream &stream, u8 reg); + void format_short_imm(std::ostream &stream, u8 imm); + void format_short_imm_unsigned(std::ostream &stream, u8 imm, bool i); + void format_short_imm_decimal(std::ostream &stream, u8 imm); + void format_medium_imm(std::ostream &stream, u16 imm, bool i); + void format_medium_imm_decimal(std::ostream &stream, u16 imm); + void format_imm21(std::ostream &stream, u32 imm); + void format_disp5(std::ostream &stream, u8 disp); + void format_disp16(std::ostream &stream, u16 disp); + void format_disp18(std::ostream &stream, u32 disp); + void format_abs18(std::ostream &stream, u32 addr); + void format_pc_disp5(std::ostream &stream, offs_t pc, u8 disp); + void format_pc_disp9(std::ostream &stream, offs_t pc, u16 disp); + void format_pc_disp17(std::ostream &stream, offs_t pc, u32 disp); + void format_pc_disp21(std::ostream &stream, offs_t pc, u32 disp); + void format_excp_vector(std::ostream &stream, u8 vec); + +private: + // static tables + static const char *const s_cc[14]; + + // architecture version + const cr16_arch m_arch; +}; + +class cr16a_disassembler : public cr16b_disassembler +{ +public: + // construction/destruction + cr16a_disassembler(); + +protected: + virtual void format_rproc(std::ostream &stream, u8 reg) override; +}; + +#endif // MAME_CPU_CR16B_CR16BDASM_H |