Even though I was impressed with the original article (so kind of contrary to the author) in the meantime I tried the same thing with Claude Sonnet 4 (because some people here criticized the approach due to not using a proper "coding model") and got no better results. Now I tried about a dozen iterations but it did not manage to create a "BASIC programm for Atari 800XL that makes use of display list interrupts to draw rainbow-like colored horizontal stripes", although this is like a "hello world" for that technique and there should be plenty of samples on the Internet. I am curious to see if anyone can make that work with an LLM.
Are there really plenty of examples on the internet?
My first thought reading the article was that Atari BASIC is kind of a little specialized. If BASIC is kind of an under-represented language in general on the internet (you know, compared to Javascript, for example) then Atari BASIC has to be a white whale.