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Posting-Version: version B 2.10.2 9/18/84; site lsuc.UUCP
Path: utzoo!lsuc!jimomura
From: jimomura@lsuc.UUCP (Jim Omura)
Newsgroups: net.micro.6809,net.micro.68k
Subject: Re: 68xxx v.s. 80xxx    :-)
Message-ID: <830@lsuc.UUCP>
Date: Sun, 6-Oct-85 00:44:38 EDT
Article-I.D.: lsuc.830
Posted: Sun Oct  6 00:44:38 1985
Date-Received: Sun, 6-Oct-85 00:59:20 EDT
References: <370@wlbr.UUCP>
Reply-To: jimomura@lsuc.UUCP (Jim Omura)
Organization: Barrister & Solicitor, Toronto
Lines: 46
Summary: 680x0 speed

In article <370@wlbr.UUCP> steve@wlbr.UUCP (Steve Childress) writes:
>..
>..
>Ever wonder why Motorola's microprocessors (6800, 6809, 680x0) seem to
>never get as much hype and acceptance as Intel's? Psssst! .. here's why.
>
>Intel puts a divide-by-N counter for the main clock on their micro chips.
>Not for marketing reasons, you understand. But in hindsight, it's clever.
>Motorola doesn't. Hence, the idiots writing for the media belittle the
>680x's for being far slower than the 80x's.
>
>Goodness, gracious, a 2MHz 6809 simply *MUST* be inferior to a 6MHz Z80!
>
>HEY MOTOROLA! The path to riches is obvious! Put a divider in the "68020A"
>so that the outside clock frequency will be 500MHz! Or make it a hybrid
>with a 100GHz clock!
>
>I can imagine INFOWORLD headlines now! 
>
>		Regards,
>			Steve Childress
>			Eaton IMS    R&D Group MS 43 
>			31717 La Tienda Drive
>			Westlake Village,  CA    91360
>			(818) 889-2211 X2148
>			{trwrb, scgvaxd, ihnp4, voder, vortex} !wlbr!steve
>		        or	 		        ...wlbr!wlbreng1!steve

     Actually the 68000 family isn't
all that fast.  Check some cycle counts
and you'll find that the 68000 and
68008 are cycle hogs.  I don't have
figures for the 68010, but the 68020
was a substantial improvement.  I
think they dropped the mean from over
4 cycles to about 3 cycles for most
instructions.  That plus much higher
clock speed makes it a very much faster
processor.

-- 
James Omura, Barrister & Solicitor, Toronto
ihnp4!utzoo!lsuc!jimomura
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