Re: PetSpeed dongle

From: Rhialto <rhialto_at_falu.nl>
Date: Fri, 7 Aug 2026 18:14:33 +0200
Message-ID: <anYEaeJGltz77A44_at_falu.nl>
I have experimented a bit more, and it seems that it is DOS 2.7 that
spoils things. It adds the drive number to the end of the "OK" message,
and PetSPEED doesn't seem to like that. My dongle emulation code is
fine.

Since Vice comes with DOS 2.7 for the 8050 drive, and most versions of
PetSpeed come on d80 images, this was "easy" to run into...

I downgraded my emulated 8050 to DOS 2.5 (901482-03.bin + 901482-04.bin)
and then it compiled my test program (the "Intruder" game).

However it miscompiled it :-( The version I used "back in the day") did
work on it (the version back in the day). I tried two versions of the
compiler and both seemed to do a wrong thing at more or less the same
place in the program. In one of them the compiled program aborted with
ILLEGAL QUANTITY ERROR. Maybe it was doing something the compiler
doesn't support...

-Olaf.
-- 
___ Olaf 'Rhialto' Seibert                            <rhialto/at/falu.nl>
\X/ There is no AI. There is just someone else's work.           --I. Rose

Received on 2026-08-07 18:00:01

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