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