Comment on 10001

• Dabundis@lemmy.world ⁨4⁩ ⁨weeks⁩ ago

  Ominous

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• carpelbridgesyndrome@sh.itjust.works ⁨4⁩ ⁨weeks⁩ ago

  Mmm yes. 5 bit two’s complement.

  I shouldn’t make fun of it we’ve definitly made some ISA that weird.

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• swag_money@lemmy.world ⁨4⁩ ⁨weeks⁩ ago

  what’s the general rule for translating negatives from binary? did you just do like 17 - 2 • (-1) or something?

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  • yardy_sardley@lemmy.ca ⁨4⁩ ⁨weeks⁩ ago

    I used what known as 2’s compliment. Take the complement (flip all the bits - here that would give you 01110 which is 14) then add 1.

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    • swag_money@lemmy.world ⁨4⁩ ⁨weeks⁩ ago

      thanks for the explanation! could you express it as a NOT operation plus one? like is that how it would be processed at a low level?

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      • computergeek125@lemmy.world ⁨4⁩ ⁨weeks⁩ ago

        My low level is a tad rusty from when I learned the C side in school, but if I recall the not operator resolves as a single Boolean (0 or 1 in true C), whereas compliment comes back as however many bits you put in - a not operation per bit.

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