Author: Stan Eisenstat
Subject: Re: [Cs323] one's complement
Date: Wednesday, 07 Oct 2020, 09:23:46

    > Message Posted By: Unknown
    >
    > Isnt "-2^(m-1) < x < +2^(m-1)" only have 2^m-1 distinct numbers whereas c
    > = 2^m?
    >
    > From the notes, c=2^m-1 has distribution -2^(m-1) < x < +2^(m-1)

The original question and my reply were:

    > What is an example of the distribution of numbers that are representable
    > if c=2^m for one's complement?

  -2^(m-1) < x < +2^(m-1)

That answer is correct for ones' (note that the
apostrophe follows the s) complement, where c = 2^m-1.

For two's (note that the apostrophe precedes the s)
complement c = 2^m, not 2^m-1, and the standard range
is -2^(m-1) <= x < +2^(m-1).

--Stan-