nese/src/mapper.h

#ifndef NESE_MAPPER_H_
#define NESE_MAPPER_H_

#include <stdbool.h>

#include "ines.h"


struct nes_Memory;

struct nes_Mapper {
    const char* name;
    int max_chr_banks;
    int data_size;
    void* data;

    int (*init)(struct nes_Mapper*, const ines_Header*, struct nes_Memory*);
    void (*done)(struct nes_Mapper*);
    void (*reset)(struct nes_Mapper*, struct nes_Memory*);

    int (*write_rom)(struct nes_Mapper*, struct nes_Memory*, uint16_t addr, uint8_t val);
    int (*write_sram)(struct nes_Mapper*, struct nes_Memory*, uint16_t addr, uint8_t val);
    int (*write_apu)(struct nes_Mapper*, struct nes_Memory*, uint16_t addr, uint8_t val);
    uint8_t (*read_apu)(struct nes_Mapper*, struct nes_Memory*, uint16_t addr);

    int (*hsync)(struct nes_Mapper*);
    int (*vsync)(struct nes_Mapper*);

    void (*ppu_bus)(struct nes_Mapper*, uint16_t addr);
    void (*ppu_mem_mode)(struct nes_Mapper*, uint8_t mode);

    void* irq_arg;
    void (*irq_callback)(void* irq_arg, bool enable);
};
typedef struct nes_Mapper nes_Mapper;


extern const nes_Mapper* nes_mappers[256];


#endif // NESE_MAPPER_H_