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static uint8_t mapper_000_0_prg_rom_read(struct nes_state *state, uint32_t addr) {
struct mapper_000_0 *mapper = &state->mapper_data.m000_0;
return state->prg_rom[addr & mapper->mask];
}
static uint8_t mapper_000_0_chr_read(struct nes_state *state, uint32_t addr) {
return state->chr_rom[addr];
}
static void mapper_000_0_init(struct nes_state *state) {
struct mapper_000_0 *mapper = &state->mapper_data.m000_0;
state->mapper_function.prg_rom_read = mapper_000_0_prg_rom_read;
state->mapper_function.chr_read = mapper_000_0_chr_read;
mapper->mask = (state->ines.prg_size == 16384) ? 0x3fff : 0x7fff;
}
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