Hi all, I've done all my assembly programming for the 83Plus using applications -- not standard assembly. Anyway, I want to now code using standard assembly...but bugger me if I can figure out how. What does the program header have to look like?...I take it you can use ZDS for all of this too. Urgh. :) James. - James Matthews Generation5: http://library.advanced.org/18242/index.shtml