///////////////////////////////////////////////////////////////////// // Mapper 83 class NES_mapper83 : public NES_mapper { friend void adopt_MPRD(SnssMapperBlock* block, NES* nes); friend int extract_MPRD(SnssMapperBlock* block, NES* nes); public: NES_mapper83(NES* parent) : NES_mapper(parent) {} ~NES_mapper83() {} void Reset(); uint8 MemoryReadLow(uint32 addr); void MemoryWriteLow(uint32 addr, uint8 data); void MemoryWrite(uint32 addr, uint8 data); void HSync(uint32 scanline); protected: uint8 regs[3]; uint32 irq_counter; uint8 irq_enabled; private: }; /////////////////////////////////////////////////////////////////////