maxmaxcode
maxmaxcode = 1L << maxbits;
if (free_ent < maxmaxcode) {
maxcode = maxmaxcode;
maxmaxcode = 1L << maxbits;
if ((code = free_ent) < maxmaxcode && oldcode != -1) {
maxcode = maxmaxcode;
maxmaxcode = 1L << maxbits; /* Should NEVER generate this code. */