#intel8087 — Public Fediverse posts

“In 1980, #Intel released the #Intel8087 #FloatingPoint coprocessor, a chip that could make math up to 100 times faster. As well as arithmetic and square roots, the 8087 computed #transcendental functions including #tangent, #exponentiation, and #logarithms.

But it all depended on a 69-bit adder: "The arithmetic heart of the floating-point execution unit is centered about a #nanomachine comprised of the adder and its related #registers, #shifters and control circuitry," as the patent describes it”

#Silicon / #EE / #Computing <https://www.righto.com/2026/06/intel-8087-adder-reverse-engineered.html>

Microcode inside the Intel 8087 floating-point chip: register exchange

https://www.righto.com/2026/05/microcode-inside-intel-8087-floating.html

#HackerNews #Microcode #Intel8087 #FloatingPoint #Chip #Technology #RegisterExchange

Conditions in the Intel 8087 floating-point chip's microcode

https://www.righto.com/2025/12/8087-microcode-conditions.html

#HackerNews #Intel8087 #FloatingPoint #Microcode #Technology #History #ComputerArchitecture