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34 lines
672 B
C
34 lines
672 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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// retroUSB DPCMcart
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class Mapper409 : public BaseMapper
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{
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protected:
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virtual uint16_t GetPRGPageSize() override { return 0x4000; }
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virtual uint16_t GetCHRPageSize() override { return 0x2000; }
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void InitMapper() override
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{
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RemoveRegisterRange(0x0000, 0xFFFF, MemoryOperation::Any);
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AddRegisterRange(0xC000, 0xCFFF, MemoryOperation::Write);
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SelectPRGPage(1, -1);
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SelectCHRPage(0, 0);
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WriteRegister(0xC000, 0);
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}
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virtual void Reset(bool softReset) override
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{
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WriteRegister(0xC000, 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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SelectPRGPage(0, addr & 0x0FFF);
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}
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};
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