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Diffstat (limited to 'src/devices/sound/megd.h')
-rw-r--r-- | src/devices/sound/megd.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/src/devices/sound/megd.h b/src/devices/sound/megd.h new file mode 100644 index 00000000000..59a13aa0ea4 --- /dev/null +++ b/src/devices/sound/megd.h @@ -0,0 +1,39 @@ +// license:BSD-3-Clause +// copyright-holders:Olivier Galibert + +// Yamaha MEG - Multiple effects generator +// +// Audio dsp dedicated to effects generation +// +// Disassembler + +#ifndef DEVICES_SOUND_MEGD_H +#define DEVICES_SOUND_MEGD_H + +#pragma once + +class meg_disassembler : public util::disasm_interface +{ +public: + class info { + public: + virtual u16 fp_r(u16 address) const = 0; + virtual u16 offset_r(u16 address) const = 0; + }; + + meg_disassembler(info *inf = nullptr); + + 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: + info *m_info; + + std::string gfp(offs_t address) const; + std::string goffset(offs_t address) const; + + static inline u32 b(u64 opc, u32 start, u32 count); + static inline void append(std::string &r, std::string e); +}; + +#endif |