The Adder at the Heart of Intel’s 8087 FPU
tech
According to Hackaday, Intel's 1970s floating-point coprocessor, the 8087, relied on a deceptively complex 69-bit adder at its heart. What seems straightforward—adding two numbers—demanded serious silicon engineering to handle floating-point arithmetic within the constraints of 1970s chip design. It's a technical reminder that computing elegance rests on layers of meticulous hardware engineering.
Source: https://hackaday.com/2026/06/16/the-adder-at-the-heart-of...
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