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From: henry@utzoo.UUCP (Henry Spencer)
Newsgroups: net.micro.68k
Subject: Re: More on PC relative destinations and a new one on EA orthogonality
Message-ID: <5600@utzoo.UUCP>
Date: Thu, 16-May-85 12:42:02 EDT
Article-I.D.: utzoo.5600
Posted: Thu May 16 12:42:02 1985
Date-Received: Thu, 16-May-85 12:42:02 EDT
References: <419@oakhill.UUCP>
Organization: U of Toronto Zoology
Lines: 14

>  ... Assuming that its workable, we have another problem
>   in that looking at over 7,000 instructions generated by
>   Pascal and C compilers on the NS32032 we have found very little use
>   of any memory to memory operations not already available on the M68000
>   family. In fact, the National code (with half the registers of the M68000)
>   only uses them about 2 percent of the time. This discourages us from even
>   considering such an addition.

Think hard about compiler quality before drawing any major conclusions from
such investigations.  Exploiting memory-to-memory instructions, in any but
the most trivial cases, takes extra work by the compiler writer.
-- 
				Henry Spencer @ U of Toronto Zoology
				{allegra,ihnp4,linus,decvax}!utzoo!henry