> It should be mentioned that there were two editions of the book, and > that the 2nd one is the preferable one. It corrected some mistakes, and I > think added the extra addressing modes that I had found. Which are the addressing modes not yet found in the Oh!FM magazine? http://www-users.rwth-aachen.de/torsten.dittel/CoCo/Oh!FM/oh_fm.htm Regards, Torsten