37 lines
731 B
C
37 lines
731 B
C
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#pragma once
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#include "stdafx.h"
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#include "BaseMapper.h"
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class JalecoJfxx : public BaseMapper
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{
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private:
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bool _orderedBits;
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protected:
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virtual uint16_t GetPRGPageSize() { return 0x8000; }
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virtual uint16_t GetCHRPageSize() { return 0x2000; }
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virtual uint16_t RegisterStartAddress() { return 0x6000; }
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virtual uint16_t RegisterEndAddress() { return 0x7FFF; }
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void InitMapper()
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{
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SelectPRGPage(0, 0);
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SelectCHRPage(0, 0);
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}
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void WriteRegister(uint16_t addr, uint8_t value)
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{
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if(_orderedBits) {
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//Mapper 101
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SelectCHRPage(0, value);
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} else {
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//Mapper 87
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SelectCHRPage(0, ((value & 0x01) << 1) | ((value & 0x02) >> 1));
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}
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}
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public:
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JalecoJfxx(bool orderedBits) : _orderedBits(orderedBits)
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{
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}
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};
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