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Subject: Re: ONES COMPLEMENT
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Message-ID: <wqrvg.7690$tE5.1649@news-server.bigpond.net.au>
Date: Wed, 19 Jul 2006 14:35:08 GMT
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Date: 2006-07-19T14:35:08+00:00
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glen herrmannsfeldt wrote in message ...
>Everett M. Greene wrote:
>
>(snip)
>
>> A properly designed 1s complement machine would not
>> generate -0 in normal arithmetic operations.  Thus,
>> no need to perform a program check for -0.
>
>As far as I know, they are designed either to not generate
>-0 under normal conditions, or to compare -0 equal to +0,
>or both.

Or none.
In some cases, -0 is treated as a negative number,
and +0 as a positive, and -0 is not equal to +0.