alt Hacker NewsAny idea how much adder designs changed on modern CPUs compared to back then? I mean there's only so much you can optimize in those, I think...
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rcxdude • yesterday at 9:45 PM
There's a surprising amount of optimization possible in them. You can improve the latency of them substantially at the cost of a lot more transistors.
Even by the time of the Pentium, they had moved to much more complicated adders like Kogge-Stone. I wrote about it here: https://www.righto.com/2025/01/pentium-carry-lookahead-rever...