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Ken Shirriff /
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2024-12-06 16:48:26

Ken Shirriff on Nostr: Intel launched the Pentium processor in 1993. Unfortunately, dividing sometimes gave ...

Intel launched the Pentium processor in 1993. Unfortunately, dividing sometimes gave a slightly wrong answer, the famous FDIV bug. Replacing the faulty chips cost Intel $475 million. I reverse-engineered the circuitry and can explain the bug. 1/9

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