#include "mapper_001.c"
// #include "mapper_mmc1.c"
// #include "mapper_uxrom.c"
#include "mapper_066.c"

struct mapper_entry {
	int		id;
	uint8_t	(*read)(struct nes_state *state, uint32_t addr);
	void		(*write)(struct nes_state *state, uint32_t addr, uint8_t value);
	void		(*tick)(struct nes_state *state);
	void		(*init)(struct nes_state *state);
};

static struct mapper_entry mapper_table[] = {
	{  0, mapper_001_read, mapper_001_write, mapper_001_tick, mapper_001_init },
	{ 66, mapper_066_read, mapper_066_write, mapper_066_tick, mapper_066_init },
	// { 1, mapper_mmc1_read, ... }, etc
};

static void mapper_setup(struct nes_state *state) {
	uint32_t mapper = state->ines.mapper;
	for(uint32_t i = 0; i < sizeof(mapper_table)/sizeof(mapper_table[0]); i++) {
		if(mapper_table[i].id == mapper) {
			state->mapper.read  = mapper_table[i].read;
			state->mapper.write = mapper_table[i].write;
			state->mapper.tick  = mapper_table[i].tick;
			state->mapper.init  = mapper_table[i].init;
			state->mapper.init(state);
			return;
		}
	}

	// NOTE(peter): Not sure how safe this is, but it sure is funny...
	printf("Unsupported mapper %d, falling back to NROM\n", mapper);
	state->mapper.read  = mapper_001_read;
	state->mapper.write = mapper_001_write;
	state->mapper.tick  = mapper_001_tick;
	state->mapper.init  = mapper_001_init;
	state->mapper.init(state);
}