The Pentium F00F Bug

By Robert R. Collins

Dr. Dobb's Journal May 1998

Sequence  Address   Data      Mnemonic                      Timestamp
------------------------------------------------------------------------
T 524285  000000B2----7E--------(-IO-WRITE-)---------------------300 ns
  524286  00000018  ----E14C    ( LOCKED MEM READ )           440 ns
  524287  0000001A  F000----    ( LOCKED MEM READ )            100 ns

Example 1: F00F bug example.

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