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Path: utzoo!watmath!clyde!burl!ulysses!ucbvax!hplabs!hp-sdd!nick
From: nick@hp-sdd.UUCP (Nick Flor)
Newsgroups: net.micro.amiga
Subject: Re: AmigaFest--San Diego
Message-ID: <128@hp-sdd.UUCP>
Date: Tue, 4-Mar-86 20:10:51 EST
Article-I.D.: hp-sdd.128
Posted: Tue Mar  4 20:10:51 1986
Date-Received: Sun, 9-Mar-86 09:21:51 EST
References: <1361@caip.RUTGERS.EDU> <122@hp-sdd.UUCP> <367@mips.UUCP> <792@amiga.amiga.UUCP>
Organization: Hewlett Packard, San Diego
Lines: 40

> :)  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
Gee, you should have told me that sooner.  The salesman was really
excited that the CSA board was "speeding up" the bouncing ball
demo.

> 	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  :-)
No, when I was there the salesman was just showing the bouncing
ball demo.

Also,  the blitter hardware draws the lines, not the 68000
ergo, there shouldn't be a significant speed increase.  
(Go to the head of the class Nicko for stating the obvious)

So, what's the use of that board in the first place. 

Nick 

----------

"Back off man.  I'm a scientist."
--Bill Murray

"When they pull the shutters down and throw up in the dark they 
 find that all the dogs outside bite much worse than they bark"
--Elvis Costello

Standard Disclaimer:
These onions are obviously my own as HP is not in the vegetable business.