From: grr@cbmvax.commodore.com (George Robbins)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: A4000 graphics
Date: 16 Oct 92 05:44:36 GMT
Reply-To: grr@cbmvax.commodore.com (George Robbins)
Organization: Commodore, West Chester, PA

In article <Bw6CBo.5z3@news.iastate.edu> barrett@iastate.edu (Marc N Barrett) writes:
> In article <35868@cbmvax.commodore.com> grr@cbmvax.commodore.com (George Robbins) writes:
> >In article <Bw3098.Bn@news.iastate.edu> barrett@iastate.edu (Marc N Barrett) writes:
> >>    Not quite.  Amber did everything in hardware, but the deinterlacing and
> >> scan-doubling on an A4000 is done almost entirely in software.  They is no
> >> "deinterlacer" built into the Lisa chip.  They are using a combination of some
> >> new resolution modes programmed from software and some software to detect an
> >> attempt to open an interlaced screen and open a non-interlaced screen.
> >
> >Marc, the "de-interlacing" is all in hardware in Alice/Lisa, though we refer
> >to it as scan doubling.  The software component is simply to determine when to
> >enable the scan doubling and build an approrite copper list.
> >You should really shut the fuck up when you're clueless, which seems to
> >be most the of the time.
> 
>    Why don't you explain more clearly where my explanation of what is going
> on is in conflict with yours?  I am saying that Commodore reprogrammed the
> Productivity mode to generate the DblPAL and DblNTSC modes, and has written
> some routines into the OS to determine when one of the DblXXXX modes is needed
> bring up the appropriate one.

You say (1) "there is no de-interlacer built into the Lisa chip".
        (2) "scan doubling on an A4000 is done almost entirely
             in software".

Both of these statements are incorrect in fact, in that there is de-interlacer
hardware in Lisa and that all the "work" is done by the hardware, not the
software, which I clearly stated.

> bring up the appropriate one.  If this is wrong, say so and state what is
> really going on.  Don't insult me and expect me to be satisfied because it
> won't work.
> 
> >>    BTW, you say that AGA can do "everything that the Amber chip did and MORE."
> >> I will not believe you until you can show me "Beauty of the Beast" running
> >> on an A4000 with a VGA monitor, with no scan-lines.  The Amber chip can do
> >> it easily.  Can the A4000?
> >
> >Who cares what you believe.  Have you tried your purity test or are you
> >must making more noise?  Do you own an Amber chip or are you just comparing
> >the virtures of Rolls Royces and Bentlys to create an illusion of knowledge?
> 
>    I have used A3000s extensively for the past year.  I do not actually own
> one, but I have easy access to one during school breaks.  Besides, you did
> not contest the statement, you just insulted me personally.  Fairly typical.

It has been pointed out by numerous people, both from Commodore and the user
community that you are exceptionally careless in your postings.  You
consistantly get your facts wrong and make various unuspportable statements
and unverifiable assertions, while speaking in a tone of utter certainty.
You adopt a uniformly hyper-critical attitude towards the Amiga products,
while retaining no obvious vested interest or personal investment in the Amiga.

To my observation, this has been pointed out to you innumerable times, both
politely and not, with no obvious improvement in you behavior.  Lacking any
direct means of addressing this situation or the time to refute every one
of your mis-statements, it doens't particularly bother me to stoop to
occasional insult, especially if it helps to remove, in the minds of others,
any illusion that you are the font of Amiga wisdom that you seem to think you
are.

Grow up!  You appear to be fairly intelligent, but either some part of your
critical process is short-circuited or you put the gratification of seeing
your own words broadcast to the world ahead of your pride in their content.

Some of us who have invested man-years in making the Amiga better than it
otherwise would be or K-dollars to buy/use the system for what is is find
this to be rather an annoyance and would be happier if you never posted
another byte to the net.  If this doesn't make you wonder just a little bit
in some fundamental way about the value of your activities, your are either
quite dense or should seek psychological help.

-- 
George Robbins - now working for,     work:   to be avoided at all costs...
but no way officially representing:   uucp:   {uunet|pyramid|rutgers}!cbmvax!grr
Commodore, Engineering Department     domain: grr@cbmvax.commodore.com