Ancient 6502 FOCAL source code

From: Richard Erlacher <>
Date: Wed Sep 26 19:11:35 2001

I'll happily give you a copy of the source, (to be forwarded under separate
cover) and, if you like, I'll even give you a copy of the PAL65 Assembler binary
and source. Unfortunately, they run under a locally written OS for the APPLE][,
called APEX, and you may have a problem using the sources without a good bit of
whittling. Of course, I've also got the sources for the OS, but it's written in
a locally generated HLL, called XPL0, (yes, that's a zero, not an 'O;') and
that's not mine to give away without first checking with the owner. I doubt it
will be a problem, though. I just want to respect the rights of the authors.


----- Original Message -----
From: "ajp166" <>
To: <>
Sent: Wednesday, September 26, 2001 4:50 PM
Subject: Re: Ancient 6502 FOCAL source code

> I'd be interested in both source and machine readable. It would be fun
> to run FOCAL
> again.
> Allison
> -----Original Message-----
> From: Richard Erlacher <>
> To: <>
> Date: Wednesday, September 26, 2001 5:59 PM
> Subject: Ancient 6502 FOCAL source code
> >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
> >
> >
Received on Wed Sep 26 2001 - 19:11:35 BST

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