mapper_nrom.c


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static void mapper_nrom_init(struct state *state) {
	// Nothing to initialize for NROM
}

static uint8_t mapper_nrom_read(struct state *state, uint16_t addr) {
	uint32_t prg_size = state->ines.prg_size;

	if(state->ines.prg_size == 16384) {
		return state->rom[addr & 0x3fff];
	} else {
		return state->rom[addr - 0x8000];
	}
	return 0;
}

static void mapper_nrom_write(struct state *state, uint16_t addr, uint8_t value) {
	(void)state;
	(void)addr;
	(void)value;
}

static void mapper_nrom_tick(struct state *state) {
	(void)state;
}