Back in July of 2022, I published an entry on this blog entitled Recovering VTL-09 which (unfortunately) I had to leave unfinished. But in May of 2024, David Wiens reached out to me again to inform me that he had received source code for VTL-09, modified for 6809 FLEX by Alex Petersen in 1988.
I have no particular excuse for having kept this to myself for so long. In the meantime, I did retire from being employed at Red Hat, and now I have a bit more time for the foolishness of retrocomputing and other hobbies.
The VTL-09 source seems relatively easy to read. While it is written for FLEX, it looks relatively simple to adapt it for other environments.[1] I may do just that. In any case, please do inform me if you take-up such a challenge yourself!
[1] The source does require a few simple adaptations to successfully assemble with lwasm. Reach out to me if you run into trouble.↩
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