* Table to ensure that uniVerse sees characters in the range 251-255
* as the internal mark characters, rather than as external characters
* in that range (e.g. Latin-1 printing characters FB-FF).
FB	@TM
FC	@SM
FD	@VM
FE	@FM
FF	@IM
* Also add SQL NULL as a special kind of mark:
80	@SQL.NULL