undefined4 FUN_00489bec(undefined4 *param_1)

{

  int iVar1;

  undefined4 uVar2;

  iVar1 = param_1[4];

  *param_1 = 0xffffffff;

  param_1[4] = iVar1 + -1;

  if (iVar1 + -1 < 0) {

LAB_00489c48:

    uVar2 = 0xffffffff;

    *(byte *)((int)param_1 + 0x15) = *(byte *)((int)param_1 + 0x15) | 2;

  }

  else {

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

      iVar1 = FUN_00483560(param_1[2]);

      if (iVar1 == -1) goto LAB_00489c48;

      param_1[1] = iVar1;

    }

    else {

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

    }

    uVar2 = param_1[1];

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

    *param_1 = uVar2;

  }

  return uVar2;

}