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48 lines
No EOL
962 B
C++
48 lines
No EOL
962 B
C++
#pragma once
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#include "pch.h"
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#include "NES/BaseMapper.h"
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class T262 : public BaseMapper
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{
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private:
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bool _locked = false;
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uint8_t _base = 0;
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uint8_t _bank = 0;
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bool _mode = false;
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protected:
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uint16_t GetPrgPageSize() override { return 0x4000; }
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uint16_t GetChrPageSize() override { return 0x2000; }
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void InitMapper() override
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{
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SelectPrgPage(0, 0);
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SelectPrgPage(1, 7);
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SelectChrPage(0, 0);
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}
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void Serialize(Serializer& s) override
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{
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BaseMapper::Serialize(s);
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SV(_locked);
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SV(_base);
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SV(_bank);
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SV(_mode);
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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(!_locked) {
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_base = ((addr & 0x60) >> 2) | ((addr & 0x100) >> 3);
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_mode = (addr & 0x80) == 0x80;
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_locked = (addr & 0x2000) == 0x2000;
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SetMirroringType(addr & 0x02 ? MirroringType::Horizontal : MirroringType::Vertical);
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}
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_bank = value & 0x07;
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SelectPrgPage(0, _base | _bank);
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SelectPrgPage(1, _base | (_mode ? _bank : 7));
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}
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}; |