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35 lines
702 B
C++
35 lines
702 B
C++
#pragma once
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#include "stdafx.h"
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#include "BaseMapper.h"
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class Bs5 : public BaseMapper
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{
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protected:
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uint32_t GetDipSwitchCount() override { return 2; }
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uint16_t GetPRGPageSize() override { return 0x2000; }
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uint16_t GetCHRPageSize() override { return 0x800; }
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void InitMapper() override
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{
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for(int i = 0; i < 4; i++) {
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SelectPRGPage(i, -1);
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SelectCHRPage(i, -1);
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}
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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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int bank = (addr >> 10) & 0x03;
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switch(addr & 0xF000) {
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case 0x8000:
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SelectCHRPage(bank, addr & 0x1F);
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break;
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case 0xA000:
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if(addr & (1 << (GetDipSwitches() + 4))) {
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SelectPRGPage(bank, addr & 0x0F);
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}
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break;
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}
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}
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}; |