46 lines
913 B
C
46 lines
913 B
C
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#pragma once
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#include "stdafx.h"
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#include "MMC3.h"
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class Bmc8in1 : public MMC3
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{
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private:
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uint8_t _reg;
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protected:
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void InitMapper() override
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{
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_reg = 0;
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MMC3::InitMapper();
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}
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void StreamState(bool saving) override
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{
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MMC3::StreamState(saving);
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Stream(_reg);
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}
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void SelectCHRPage(uint16_t slot, uint16_t page, ChrMemoryType memoryType = ChrMemoryType::Default) override
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{
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MMC3::SelectCHRPage(slot, ((_reg & 0x0C) << 5) | (page & 0x7F), memoryType);
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}
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void SelectPRGPage(uint16_t slot, uint16_t page, PrgMemoryType memoryType = PrgMemoryType::PrgRom) override
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{
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if(_reg & 0x10) {
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MMC3::SelectPRGPage(slot, ((_reg & 0x0C) << 2) | (page & 0x0F));
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} else {
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SelectPrgPage4x(0, (_reg & 0x0F) << 2);
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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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if(addr & 0x1000) {
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_reg = value;
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UpdateState();
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} else {
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MMC3::WriteRegister(addr, value);
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}
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}
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};
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