Path: utzoo!attcan!utgpu!news-server.csri.toronto.edu!mailrus!sharkey!tygra!dave
From: dave@tygra.UUCP (David Conrad)
Newsgroups: comp.arch
Subject: Re: F.P. vs. arbitrary-precision
Summary: 32 bits times 32 bits equals 64 bits!!!
Message-ID: <389@tygra.UUCP>
Date: 9 Sep 90 10:57:15 GMT
References: <3755@osc.COM> <4513@taux01.nsc.com> <119244@linus.mitre.org> <6837.26e7ee92@vax1.tcd.ie>
Reply-To: dave@tygra.UUCP (David Conrad)
Organization: Moore Software, Detroit, MI
Lines: 19

In article <6837.26e7ee92@vax1.tcd.ie> rwallace@vax1.tcd.ie writes:
}First, why do you need 32 x 32 -> 64? OK in principle 32 x 32 can give a 64
}bit answer but in practice 99% of the time you're going to be working in 32
}bits all the way and you don't want 64 bit answers (which is why C has
}int x int -> int not int x int -> long).
}-- 
}Russell Wallace, Trinity College, Dublin

*My* C doesn't have and int * int = int.  I know because the CPU doesn't
support it.  What it does is int * int = long, and then it casts the
long back into an int if it'll fit.
--
David "Salamander" Conrad     |     In Cows We Trust     |     This space
dave@tygra.ddmi.com           |     E  Pluribus  Moo     |      for rent
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