@Override
 public void loadrom() throws BadMapperException {
   super.loadrom();
   // needs to be in every mapper. Fill with initial cfg
   for (int i = 1; i <= 32; ++i) {
     // map last banks in to start off
     prg_map[32 - i] = prgsize - (1024 * i);
   }
   for (int i = 0; i < 8; ++i) {
     chr_map[i] = (1024 * i) & (chrsize - 1);
   }
 }