This is so true tho

      • pelya@lemmy.world
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        3 hours ago

        Written in hand-optimized assembly with individual implementation for every CPU on the planet, with integer division function in 10000 lines of code impelented with XOR and bit-shifting which is somehow 0.3% faster than CPU built-in division operation.

        • Buddahriffic@lemmy.world
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          2 hours ago

          He had to de-optimize the init sequence because the little trick he added that caused the init sequence to return a little power to the grid instead of taking it was causing grid stability issues because the returned power from offices starting up was a bit higher than the extra power required for factory startup weekday mornings.

        • palordrolap@fedia.io
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          59 minutes ago

          The mention of division has triggered a memory. I think I actually saw a library like that once. It was in C, not assembly, and was almost certainly for one specific architecture (probably Intel), but other than that, there was a lot of low-level stuff that claimed to make division faster for all CPU-native data types.

          It was above my skill level to just pick up and use, let alone read and understand, but I can tell you that it at least looked legit, and the author seemed earnest in their description, so something like your hypothetical is very much out there.