[paranoidrobot]

Good suggestion, thanks.

ChatGPT came up with what I thought was a halucination: "CPU Sim".

After some searching, I found a Facebook post[1] with a photo of it running. That looks mostly like what I recall. The screenshot is from a 1987 version.

I can also find references to a Windows version, but no copies of either. I thought there were more features to it, but perhaps I'm misremembering or I've also thinking of Mikrosim that Tomte mentions in the sibling comment.

[1] https://www.facebook.com/RMUserGroup/posts/pfbid0uVrCYMsWmJa...