• swag_money@lemmy.world
    link
    fedilink
    English
    arrow-up
    2
    ·
    19 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
      link
      fedilink
      English
      arrow-up
      5
      ·
      18 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
        link
        fedilink
        English
        arrow-up
        1
        ·
        18 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
          link
          fedilink
          English
          arrow-up
          2
          ·
          edit-2
          18 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 ~