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From: dale@amiga.UUCP (Dale Luck)
Newsgroups: net.micro.amiga
Subject: Re: AmigaFest--San Diego
Message-ID: <792@amiga.amiga.UUCP>
Date: Tue, 4-Mar-86 12:10:59 EST
Article-I.D.: amiga.792
Posted: Tue Mar  4 12:10:59 1986
Date-Received: Fri, 7-Mar-86 05:32:17 EST
References: <1361@caip.RUTGERS.EDU> <122@hp-sdd.UUCP> <367@mips.UUCP>
Reply-To: dale@tooter.UUCP (Dale Luck)
Organization: Commodore-Amiga Inc., 983 University Ave #D, Los Gatos CA 95030
Lines: 25

In article <367@mips.UUCP> kim@mips.UUCP (Kim DeVaughn) writes:
>>I didn't notice any significant speed up (they were running the bouncing ball 
>>demo) while using the '020 board.  The salesman says -- "Watch.  I'll enable
>>the cache. See (he enables the cache) the speed increase??". no.
>Nick -
>
>Do you know if the 020 board had the on-board 256K of 32-bit memory or not?
>Also, I assume this was the 7+ MHz board, and not the 14+ MHz board CSA is
>supposed to R&D'ing ... is that correct?
>/kim

:)  kim and Nick, the bouncing ball demo would have sped up if the
	demo were cpu bound. Speeding up the cpu will not make a demo
	that already runs at frame rate any faster.  The demo sync's
	istelf to the vertical retrace of the beam after changing the
	position of the ball spinning it to the next orientation. It
	spends up to 75% of it's time twiddling it's thumbs waiting 
	to begin again.  With the 68020 it was spending maybe 85% of
	its time now twiddling it's thumbs.  Did you compare the
	speed of other demos to an unmodified amiga? like the lines
	demo?

Dale Luck
Amiga.
he he  :-)