These were small machine code routines written by Theo Develegas and all come in source form for usage with Zeus Assembler. I'm not sure if you find stuff like this to be of interest but thought I may as well see quickly as I doubt they'd ever appear anywhere else. The instruction for these is as follows Make sure auto tape loading is off Load Zeus assembler Press Q to exit Zeus Insert routine into tape player and Load ""CODE PRINT USR 57344 to return to Zeus enter 'O' to get the old file you have just loaded to view it enter 'L' to list it enter 'A' to assemble it enter 'X' to run it