That's a different article by the same author, Ken Shirriff
https://www.righto.com/2020/05/die-analysis-of-8087-math-cop...
https://www.righto.com/2026/06/intel-8087-adder-reverse-engi...
That's a different article by the same author, Ken Shirriff
https://www.righto.com/2020/05/die-analysis-of-8087-math-cop...
https://www.righto.com/2026/06/intel-8087-adder-reverse-engi...
Yes - I was just trying to give things a "this is interesting, so upvote & discuss!" kick. In the absence of Ken popping up with good "Author here for your 8087 questions" comment.
I guess he didn't pop up because the article is 6 years old.
https://news.ycombinator.com/item?id=23362673
I'm here now if anyone has questions. I can't be online all the time :-)
Re-post that comment top-level, so folks can see that the Big Name is now on stage. ;)