36 lines
895 B
C++
36 lines
895 B
C++
//////////////////////////////////////////////////////////////////////////
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// Mapper173 //
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//////////////////////////////////////////////////////////////////////////
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class Mapper173 : public Mapper
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{
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public:
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Mapper173( NES* parent ) : Mapper(parent) {}
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void Reset();
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BYTE ExRead ( WORD addr );
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void ExWrite( WORD addr, BYTE data );
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BYTE ReadLow ( WORD addr );
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void WriteLow(WORD addr, BYTE data);
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void Write( WORD addr, BYTE data );
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void HSync( INT scanline );
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void Clock( INT cycles );
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void PPU_Latch( WORD addr );
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void PPU_ExtLatch( WORD ntbladr, BYTE& chr_l, BYTE& chr_h, BYTE& attr );
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// For state save
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BOOL IsStateSave() { return TRUE; }
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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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BYTE reg[10];
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INT irq_counter, irq_latch;
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BYTE irq_enable, irq_repeat;
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BYTE irq_occur;
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private:
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};
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