- The Intel 8088 processor’s instruction prefetch circuitry: a look inside (righto.com)
In 1979, Intel introduced the 8088 microprocessor, a variant of the 16-bit 8086 processor. IBM’s decision to use the 8088 processor in the IBM PC (1981) was a critical point in computer history, leading to the dominance of the x86 architecture that continues to the present.1 One way that the 8086 and 8088 increased performance was by prefetching: the processor fetches instructions from memory before they are needed, so the processor can execute them without waiting on the relatively slow memory. I’ve been reverse-engineering the 8088 from die photos and this blog post discusses what I’ve uncovered about the prefetch circuitry.
- Richard E. Byrd (Wikipedia)
Richard Evelyn Byrd Jr. (October 25, 1888 – March 11, 1957), an American naval officer, was a pioneering American aviator, polar explorer, and organizer of polar logistics. Aircraft flights in which he served as a navigator and expedition leader crossed the Atlantic Ocean, a segment of the Arctic Ocean, and a segment of the Antarctic Plateau. He is also known for discovering Mount Sidley, the largest dormant volcano in Antarctica.