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Article #582

Re: Split screen mode: Why? (was Re: 320x400 question)

#582
From: David M. Baggett
Date: Tue, 11 Aug 1992 20:59
19 lines
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bytor@milton.u.washington.edu writes:
> The advantage comes from the extra video memory you save by not having
>to allocate a second page area for the status display.

So you just live with the (tiny?) amount of flicker you get by updating
your score counters etc. without double buffering?  OK, I'll buy that.
I'm not sure that would look reasonable on an Atari; I doubt it, but
I've never tried.  If you say it works on a PC I'll take your word for it.

>This also allows for the double buffered area to be flipped faster,
>since less of it will need to be displayed.

But that displaying is done by the shifter hardware and monitor, so why
would split screen mode make it faster?  (The monitor, of course, needs
to redraw the whole screen every vertical retrace no matter what the
video hardware does.)

Dave Baggett
dmb@wam.umd.edu
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From: dmb@wam.umd.edu (David M. Baggett)
Newsgroups: rec.games.programmer
Subject: Re: Split screen mode: Why? (was Re: 320x400 question)
Message-ID: <1992Aug11.205954.6321@wam.umd.edu>
Date: 11 Aug 92 20:59:54 GMT
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