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48 lines
907 B
C++
48 lines
907 B
C++
class MSU1 : public Coprocessor, public MMIO, public Stream {
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public:
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static void Enter();
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void enter();
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void init();
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void enable();
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void power();
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void reset();
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void unload();
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uint8 mmio_read(unsigned addr);
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void mmio_write(unsigned addr, uint8 data);
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void serialize(serializer&);
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private:
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file datafile;
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file audiofile;
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enum Flag {
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DataBusy = 0x80,
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AudioBusy = 0x40,
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AudioRepeating = 0x20,
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AudioPlaying = 0x10,
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AudioError = 0x08,
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Revision = 0x02,
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};
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struct MMIO {
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uint32 data_offset;
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uint32 data_seek_offset;
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uint32 audio_offset;
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uint32 audio_loop_offset;
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uint16 audio_track;
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uint8 audio_volume;
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uint32 audio_resume_track;
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uint32 audio_resume_offset;
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bool data_busy;
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bool audio_busy;
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bool audio_repeat;
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bool audio_play;
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bool audio_error;
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} mmio;
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};
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extern MSU1 msu1;
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