Industry Expert Blogs

Intel has had a couple of major events that totally changed their attitude to verification. The first was in 1994 when they had the Pentium floating-point divide bug and management said “don’t ever let this happen again”. In 1996, they started proving properties of the Pentium processor FPU.

Then, a couple of years ago, the side-channel vulnerabilities like Spectre were discovered. These didn't just affect Intel, it turned out every modern CPU had the same problem hiding in plain view for 20 years. Basically, the vulnerability plays on speculative execution making memory references and then being able to discover which memory elements were accessed, even though the speculative execution got abandoned.

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