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From: crandell@ut-sally.UUCP (Jim Crandell)
Newsgroups: net.arch
Subject: Re: Re: RISC (really on multiplication d
Message-ID: <2397@ut-sally.UUCP>
Date: Thu, 18-Jul-85 17:46:30 EDT
Article-I.D.: ut-sally.2397
Posted: Thu Jul 18 17:46:30 1985
Date-Received: Sat, 20-Jul-85 17:19:34 EDT
References: <149@mips.UUCP> <600005@pbear.UUCP> <493@mmintl.UUCP> <378@utastro.UUCP>
Organization: U. Texas CS Dept., Austin, Texas
Lines: 12

> > I would guess, conservatively, that well over 90% of the integer multiplies
> > that are done generate a result with no more bits than the larger of the
> > two operands.
> 
> I didn't know that over 90% of multiplication operations were multiplying
> something by 1.  Wow.  You learn something new on the net every day!

They're not.  Actually, 45% multiply by 1, and another 45%+ multiply by 0.
-- 

    Jim Crandell, C. S. Dept., The University of Texas at Austin
               {ihnp4,seismo,ctvax}!ut-sally!crandell