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ForOldHackyesterday at 7:56 PM1 replyview on HN

This is cool, but the renormalization and (Programmable and bidirectional) barrel shifter are of much more interest.

I had a 10Mhz XT, and ran a 8087-8 at a bit higher clock rate. I used it both for Lotus 1-2-3 and Turbo Pascal-87. It made Turbo Pascal significantly faster.


Replies

kensyesterday at 8:20 PM

You're in luck, I wrote about the 8087's shifter back in 2020 :-) https://www.righto.com/2020/05/die-analysis-of-8087-math-cop...