The program was written in 8502 assembly langauage and was compiled with the publicly available cross assembler "xa" v2.1.4f (c) 1989-98 by A.Fachat on a Windows machine (in a DOS box) using included batch files "make***.bat" in each subfolder.

There are 4 sub-programs,

arrow80+hitTest	(run MAKEht)
fileHelp	(run MAKEhlp)
JLOAD128	(run MAKEjl)
mj-drive	(run MAKEmjd)

And then the main program,
MP128.BIN	(run MAKEmp128)

Note really only MP128.BIN is needed.  JLOAD is needed for JiffyDOS devices,
if you want JiffyDOS speed.  The other 3 files support the user interface.
The UI is nice, but not neccessary.  The main UI is an uncompiled BASIC program.
Because it is not compiled, it is not included here.