Ken Shirriff on Nostr: In 1994, a math professor discovered that Intel's Pentium chip sometimes gave the ...
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
Published at
2024-12-28 19:01:57 UTCEvent JSON
{
"id": "79a693486ef71c78d475e11dfcd8da2ec3c602cdf03d3e70f1b236f602087705",
"pubkey": "53c85f49d60bd50b1b1366c2fa65054089988f695534d0b64a9b8d6b4e0ce45d",
"created_at": 1735412517,
"kind": 1,
"tags": [
[
"imeta",
"url https://assets.oldbytes.space/assets.oldbytes.space/media_attachments/files/113/731/993/398/850/101/original/0412813fdab454f4.png",
"m image/png",
"dim 924x838",
"blurhash UdH-of8^~q9FW;WVoLayx[WVayoKn%fkayoL"
],
[
"proxy",
"https://oldbytes.space/users/kenshirriff/statuses/113731994767746844",
"activitypub"
]
],
"content": "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\n\nhttps://assets.oldbytes.space/assets.oldbytes.space/media_attachments/files/113/731/993/398/850/101/original/0412813fdab454f4.png",
"sig": "ff0cc3b4f56bdf86324cb3c2d316ef1f4d48d60e5d079ebf1d8d157ca20fb151d9b3eef53e1d3d744bf053d3f4e3405c0e51f4d7c6c63f0ed0f9e483b4cf5963"
}
