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From: tim@ism780c.UUCP (Tim Smith)
Newsgroups: net.micro.amiga
Subject: Re: MC68010
Message-ID: <269@ism780c.UUCP>
Date: Thu, 16-Jan-86 20:49:45 EST
Article-I.D.: ism780c.269
Posted: Thu Jan 16 20:49:45 1986
Date-Received: Sat, 18-Jan-86 08:53:58 EST
References: <148600032@uiucuxc>
Reply-To: tim@ism780c.UUCP (Tim Smith)
Organization: Interactive Systems Corp., Santa Monica, CA
Lines: 17

In article <148600032@uiucuxc> hamilton@uiucuxc.CSO.UIUC.EDU writes:
>
>    finally got my M68000KIT.  among the ap' notes is an interesting
>blurb titled "Advantages of Upgrading an MC68000 to an MC68010".
>some excerpts:
>
>	utilize multiply, divide, and looping instructions.  Loops
>	run from 23% to 80% faster once the microcode sets up the
>       automatic "loop mode".

"loop mode" only works when it is a dbCC loop, and the body of the loop
is a one word instruction.  So string moves and memory clears will be
faster, but most systems probably don't spend a lot of time in these
kind of loops.

-- 
Tim Smith       sdcrdcf!ism780c!tim || ima!ism780!tim || ihnp4!cithep!tim