96 lines
1.9 KiB
C
96 lines
1.9 KiB
C
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//////////////////////////////////////////////////////////////////////////
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// //
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// Nintendo MMC5 //
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// Norix //
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// written 2001/09/18 //
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// last modify ----/--/-- //
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//////////////////////////////////////////////////////////////////////////
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#ifndef __APU_MMC5_INCLUDED__
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#define __APU_MMC5_INCLUDED__
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#define WIN32_LEAN_AND_MEAN
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#include "windows.h"
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#include "typedef.h"
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#include "macro.h"
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#include "APU_INTERFACE.h"
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class APU_MMC5 : public APU_INTERFACE
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{
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public:
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APU_MMC5();
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~APU_MMC5();
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void Reset( FLOAT fClock, INT nRate );
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void Setup( FLOAT fClock, INT nRate );
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void Write( WORD addr, BYTE data );
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INT Process( INT channel );
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void SyncWrite( WORD addr, BYTE data );
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BYTE SyncRead ( WORD addr );
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BOOL Sync( INT cycles );
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INT GetFreq( INT channel );
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INT GetStateSize();
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void SaveState( LPBYTE p );
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void LoadState( LPBYTE p );
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protected:
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typedef struct {
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BYTE reg[4];
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BYTE enable;
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INT vbl_length;
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INT phaseacc;
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INT freq;
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INT output_vol;
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BYTE fixed_envelope;
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BYTE holdnote;
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BYTE volume;
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BYTE env_vol;
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INT env_phase;
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INT env_decay;
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INT adder;
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INT duty_flip;
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} RECTANGLE, *LPRECTANGLE;
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typedef struct {
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// For sync
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BYTE reg[4];
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BYTE enable;
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BYTE holdnote;
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BYTE dummy[2];
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INT vbl_length;
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} SYNCRECTANGLE, *LPSYNCRECTANGLE;
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INT RectangleRender( RECTANGLE& ch );
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RECTANGLE ch0, ch1;
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SYNCRECTANGLE sch0, sch1;
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BYTE reg5010;
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BYTE reg5011;
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BYTE reg5015;
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INT cycle_rate;
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INT FrameCycle;
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BYTE sync_reg5015;
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FLOAT cpu_clock;
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// Tables
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static INT vbl_length[32];
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static INT duty_lut[4];
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static INT decay_lut[16];
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static INT vbl_lut[32];
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private:
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};
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#endif // !__APU_MMC5_INCLUDED__
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