Re: BETWEEN

On Mar 31, 12:27 am, David Thompson <dave.thomps...@[EMAIL PROTECTED]
>
wrote:
> Except that C officially allows unsigned integers to not use the
> signed form's sign bit e.g. 16-bit signed 0 to 32K-1 not 64K-1. There
> are no known modern CPUs (and C compilers) on which this makes sense,
> but in theory it is possible. In that case the unsigned-only form
> doesn't work, and the mixed form needs to be more complicated. But
> numbers in this form arguably don't match FORTH's semantics anyway.

Yes, unsigned signed-magnitude numbers and positive signed-magnitude
numbers are the same numbers.

Is the normal high level definition of WITHIN that has been discussed
here for 2's complement, for 2's complement and 1's complement, or for
all three number representations?

I'm thinking the first, given the existence of a -0 in 1's complement
and signed magnitude.