this post was submitted on 17 Oct 2024
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Or -15 days
Ominous
Mmm yes. 5 bit two's complement.
I shouldn't make fun of it we've definitly made some ISA that weird.
what's the general rule for translating negatives from binary? did you just do like 17 - 2 • (-1) or something?
I used what known as 2's compliment. Take the complement (flip all the bits - here that would give you
01110which is 14) then add 1.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?
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~