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40 lines
936 B
C++
40 lines
936 B
C++
#pragma once
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#include "stdafx.h"
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#include "BaseMapper.h"
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class TaitoTc0190 : public BaseMapper
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{
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protected:
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virtual uint16_t GetPRGPageSize() { return 0x2000; }
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virtual uint16_t GetCHRPageSize() { return 0x0400; }
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void InitMapper()
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{
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SelectPRGPage(2, -2);
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SelectPRGPage(3, -1);
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}
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void WriteRegister(uint16_t addr, uint8_t value)
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{
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switch(addr & 0xA003) {
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case 0x8000:
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SelectPRGPage(0, value & 0x3F);
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SetMirroringType((value & 0x40) == 0x40 ? MirroringType::Horizontal : MirroringType::Vertical);
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break;
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case 0x8001:
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SelectPRGPage(1, value & 0x3F);
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break;
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case 0x8002:
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SelectCHRPage(0, value*2);
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SelectCHRPage(1, value*2+1);
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break;
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case 0x8003:
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SelectCHRPage(2, value*2);
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SelectCHRPage(3, value*2+1);
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break;
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case 0xA000: case 0xA001: case 0xA002: case 0xA003:
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SelectCHRPage(4 + (addr & 0x03), value);
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break;
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}
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}
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}; |