I've got the machine readable FOCAL source file available now. It's in 6502
Assembly Language, PAL65 syntax, which will make DEC-users comfortable and the
rest of us cringe, but that's what available. I've been unable to find the
FOCAL manual, which I incorporated into my last assembly of the code, hence
believe it's on a different diskette from which I last assembled the thing in
'81-'82 or so, as a printer exercise, actually.
Let me know if you want the FOCAL interpreter source, and I'll email it to you.
Dick