§12-991.

§12-991.
   
   (a) The right of a party to perfect an appeal from a judgment, order
   or decree of the trial court to the Supreme Court shall not be
   conditioned upon his having filed in the trial court a motion for a
   new trial, but in the event a motion for a new trial is filed in the
   trial court by a party adversely affected by the judgment, order or
   decree, no appeal to the Supreme Court may be taken until subsequent
   to the ruling by the trial court on the motion for a new trial. This
   provision shall not apply, however, to an appeal from an order of the
   Corporation Commission.
   
   (b) If a motion for a new trial be filed and a new trial be denied,
   the movant may not, on the appeal, raise allegations of error that
   were available to him at the time of the filing of his motion for a
   new trial but were not therein asserted.