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30-year-old Pentium FDIV bug tracked down in the silicon — Ken Shirriff takes the microscope to Intel's first-ever recall
The Pentium was made on an 800nm ... the FDIV bug was called unimportant by Intel, claiming it would only happen once every 27,000 years. IBM declared it could happen every 24 days and halted ...
Hackaday11d
The Pentium Processor’s Innovative (and Complicated) Method Of Multiplying By Three, Fast
[Ken Shirriff] has been sharing a really low-level look at Intel’s Pentium (1993) processor. The Pentium’s architecture was highly innovative in many ways, and one of [Ken]’s most recent ...
CRN13y
Lessons Learned: Pentium Flaws Aid Intel In Sandy Bridge Chipset Recall
Next: Pentium FDIV Versus Cougar Point Intel's handling of the Sandy Bridge ... The chip maker also presumably learned from IBM's proactive response -- issuing a press statement and suspending ...
TechSpot6y
Which of the following chipmakers never made x86 CPUs?
IBM has been involved in the development of ... The company gained prominence during the Intel Pentium era, producing standout processors such as the Cyrix 5x86 and 6x86. These CPUs were known ...
Hackaday8mon
Looking At Standard-Cell Design In The Pentium Processor
Case in point an original (P54C) Intel Pentium, which [Ken Shirriff] took an in-depth look at. Using a by now almost unimaginably large 600 nm process, the individual elements of these standard ...
PC Magazine7y
PC CPU models
It stems from the Intel 8086 (x86) architecture in the IBM PC in 1981. Following is a brief history of PC CPUs, starting with the most current. Starting in 1994, AMD introduced its first Pentium ...