static void mapper_0000_init(struct nes_state *state) { // Nothing to initialize for 001 } __attribute__((hot)) static uint8_t mapper_0000_prg_read(struct nes_state *state, uint32_t addr) { uint32_t prg_size = state->ines.prg_size; uint32_t mask = (state->ines.prg_size == 16384) ? 0x3fff : 0x7fff; return state->prg_rom[addr & mask]; } static void mapper_0000_prg_write(struct nes_state *state, uint32_t addr, uint8_t value) { } __attribute__((hot)) static uint8_t mapper_0000_chr_read(struct nes_state *state, uint32_t addr) { return state->chr_rom[addr]; } static void mapper_0000_chr_write(struct nes_state *state, uint32_t addr, uint8_t value) { }