• swag_money@lemmy.world
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    29 days ago

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

    • Yardy Sardley@lemmy.ca
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      28 days 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.

      • swag_money@lemmy.world
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        28 days 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?

        • computergeek125@lemmy.world
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          28 days 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.

          In C, the not operator is ! and the compliment operator is ~