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I remember the opposite also. We used to play a lot of Robotron on my roommate's 8086 PC clone. Then he was so excited to upgrade to a '286. Robotron became unplayable. My guess is that it was coded with a lot of busy loops because it was so insanely fast on the 286 that a human simply didn't have time to respond.

I guess they probably came up with a new version, dunno.



This is actually the reason we had "turbo" buttons on PCs back then. It wasn't to overclock. Instead, it was to underclock to some backward-compatible CPU speed that would allow legacy software like that to hopefully work OK.

However, I'm not sure how many different compatibility models were being targeted.




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