The judge of each circuit court shall fix a day of his court when the trial of criminal cases will commence, and may make such general or special order in reference thereto, and to the summoning of witnesses, as may seem proper, but all criminal cases shall be disposed of before civil cases, unless the court shall direct otherwise. When an indictment is found against a person for felony or when an appeal has been perfected from the conviction of a misdemeanor or traffic infraction, the accused, if in custody, or if he appear according to his recognizance, may be tried at the same term and shall be tried within the time limits fixed in § 19.2-243; provided that no trial shall be held on the first day of the term unless it be with consent of the attorney for the Commonwealth and the accused and his attorney.