Noted reverse engineer and vintage electronics enthusiast Ken Shirriff has turned his attention to one of the darkest days in Intel's storied history: the discovery of, and subsequent impact of, the infamous FDIV bug in its Pentium processor range."Intel launched the Pentium processor in 1993. Unfortunately, dividing sometimes gave a slightly wrong answer, the famous FDIV bug," Shirriff explains. "Replacing the faulty chips cost Intel $475 million. I reverse engineered the circuitry and can expl...