These subdirectories contain versions of EDIT8 and MEDIT8 that have been tweaked to work on a 80x24 display (intead of the standard 64x16). EDIT is a PTDOS VDM-based text editor. Joe Maguire did the mods for 80x24, specifically for the McVideo enhancement from Hogg Labs. MEDIT is "A machine language (memory) editor". All I can say is that the Maguires wrote beautiful assembly language programs. They are better structured than most C programs I've seen. The versions in b10d17 and b11d7 are slightly different, so I kept both versions in case there is some significant difference between them.