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28 lines
707 B
C++
28 lines
707 B
C++
#pragma once
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#include "stdafx.h"
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#include "BaseMapper.h"
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class Nina01 : public BaseMapper
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{
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protected:
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virtual uint16_t GetPRGPageSize() override { return 0x8000; }
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virtual uint16_t GetCHRPageSize() override { return 0x1000; }
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virtual uint16_t RegisterStartAddress() override { return 0x7FFD; }
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virtual uint16_t RegisterEndAddress() override { return 0x7FFF; }
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void InitMapper() override
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{
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SelectPRGPage(0, 0);
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}
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void WriteRegister(uint16_t addr, uint8_t value) override
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{
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switch(addr) {
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case 0x7FFD: SelectPRGPage(0, value & 0x01); break;
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case 0x7FFE: SelectCHRPage(0, value & 0x0F); break;
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case 0x7FFF: SelectCHRPage(1, value & 0x0F); break;
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}
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WritePrgRam(addr, value);
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}
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}; |