Re: option ROM into a 3032 - A better test rom for PET?

From: André Fachat <>
Date: Fri, 29 Sep 2017 21:12:52 +0200
Message-ID: <>
Am 29. September 2017 8:37:30 PM schrieb Francesco Messineo 

> well, actually I started some years ago on writing some C64 "dead test" code
> that I would use in place of the kernel, it didn't rely on any RAM
> until some part of it were
> tested good. It would output a 9600 bps serial code using the internal
> I/O port of the 6510, so that the serial output would appear on a pin
> of the tape port.
> Generating code with macros (until you can actually have a stack) was
> something funny ;-)

I am actually thinking about a general 6502/6510 plug in board that 
replaces the CPU and has a USB port (e.g. With serial line capability) to 
communicate with a monitoring PC.

All necessary info, even a 6502 USB stack is even on my web site, but 
unfortunately my time is limited, so any takers?


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Received on 2017-09-29 20:00:02

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