Uri Shaked

@urishaked.bsky.social

Maker ◆ Voiding warranties at @wokwi.com ◆ Keepin' it Chippin' at @TinyTapeout.com ◆ What I'm doing now? http://urish.org/now

In 1994, a math professor discovered that Intel's Pentium chip sometimes gave the wrong answer when dividing. Fixing this "FDIV" bug cost Intel $475 million. I analyzed the Pentium chip and found the bug. 1/N

A die photo of the Pentium chip. An arrow points to a location on the die, with the text "FDIV bug". The chip itself has a complex pattern of circuitry with brownish rectangles and lines of various sizes.