The Adder at the Heart of Intel’s 8087 FPU

As simple as the concept of adding two numbers appears at first glance, doing it in the 1970s in Intel’s 8087 FPU with its 69-bit adder was still a tall …read more

Source: [Hackaday](https://hackaday.com/2026/06/16/the-adder-at-the-heart-of-intels-8087-fpu/)