36 lines
561 B
C++
36 lines
561 B
C++
#pragma once
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#include "mapper.hpp"
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class Mapper4 : public Mapper
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{
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u8 reg8000;
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u8 regs[8];
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bool horizMirroring;
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u8 irqPeriod;
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u8 irqCounter;
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bool irqEnabled;
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void apply();
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public:
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Mapper4(u8* rom) : Mapper(rom)
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{
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for (int i = 0; i < 8; i++)
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regs[i] = 0;
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horizMirroring = true;
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irqEnabled = false;
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irqPeriod = irqCounter = 0;
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map_prg<8>(3, -1);
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apply();
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}
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u8 write(u16 addr, u8 v);
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u8 chr_write(u16 addr, u8 v);
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void signal_scanline();
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};
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