void FUN_00489b9c(undefined4 *param_1)

{

  param_1[4] = param_1[4] + 1;

  if (*(char *)((int)param_1 + 0x15) == '\x02') {

    *(undefined1 *)((int)param_1 + 0x15) = 0;

    *param_1 = param_1[1];

    return;

  }

  if (*(char *)((int)param_1 + 0x15) == '\0') {

    param_1[3] = param_1[3] + -1;

    *(undefined1 *)((int)param_1 + 0x15) = 1;

  }

  return;

}