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37 lines
753 B
C
37 lines
753 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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#include "VsControlManager.h"
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class VsSystem : public BaseMapper
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{
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private:
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uint8_t _prgChrSelectBit = false;
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protected:
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virtual uint16_t GetPRGPageSize() { return 0x2000; }
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virtual uint16_t GetCHRPageSize() { return 0x2000; }
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virtual void InitMapper()
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{
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if(_prgSize > 0x6000) {
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SelectPRGPage(0, 0);
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}
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SelectPRGPage(1, 1);
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SelectPRGPage(2, 2);
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SelectPRGPage(3, 3);
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SelectCHRPage(0, 0);
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}
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uint8_t ReadVRAM(uint16_t addr)
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{
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if(_prgChrSelectBit != VsControlManager::GetInstance()->GetPrgChrSelectBit()) {
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_prgChrSelectBit = VsControlManager::GetInstance()->GetPrgChrSelectBit();
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SelectCHRPage(0, _prgChrSelectBit);
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}
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return BaseMapper::ReadVRAM(addr);
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}
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};
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