Mapper.h

#pragma once
#include <cstdint>

/* --- ADAPTED FROM https://github.com/AndreaOrru/LaiNES/blob/master/src/include/mapper.hpp */

class Mapper
{
	uint8_t* rom;
	bool chrRam = false;

protected:
	uint32_t prgMap[4];
	uint32_t chrMap[4];

	uint8_t *prg, *chr, *prgRam;
	uint32_t prgSize, chrSize, prgRamSize;

	template<int pageKBs> void map_prg(int slot, int bank);
	template<int pageKBs> void map_chr(int slot, int bank);

public:
	Mapper(uint8_t *rom);
	~Mapper();

	uint8_t read(uint16_t addr);
	virtual uint8_t write(uint16_t addr, uint8_t v) { return v; };

	uint8_t chr_read(uint16_t addr);
	virtual uint8_t chr_write(uint16_t addr, uint8_t v) { return v; };

	virtual void signal_scanline() {};
};