See all articles from Extensions issue 1
On the original PRO/FILE you could only save the data with the basic part of the program. It required you to load in a master program at first to get the machine code section but didn’t have the speed advantage of only saving the data. This section allows you to save ALL (including machine code so you don’t need a separate master), or the basic with data as is done on the original, or just the DATA itself. In fact, it doesn’t even save all he data, but essentially only the part of D$ actually filled. If you only used a few thousand bytes of D$ then that’s all you save. This cuts way down on loading and saving time. This is done by saving the data as CODE instead of as DATA.