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Path: utzoo!watmath!watnot!watrose!jafischer
From: jafischer@watrose.UUCP
Newsgroups: comp.sys.atari.st
Subject: Re: double buffering using vdi ops
Message-ID: <8411@watrose.UUCP>
Date: Wed, 28-Jan-87 16:42:23 EST
Article-I.D.: watrose.8411
Posted: Wed Jan 28 16:42:23 1987
Date-Received: Thu, 29-Jan-87 04:52:56 EST
References: <2430@mtgzz.UUCP>
Reply-To: jafischer@watrose.UUCP (Jonathan Fischer)
Organization: U. of Waterloo, Ontario
Lines: 15


In article <2430@mtgzz.UUCP> bds@mtgzz.UUCP writes:
>How does one use the Setscreen() xbios routine to do double buffering

	Setscreen() won't work for double-buffering; it clears the screen.  At
least, that's what my experience suggests (and I'm sure I read it in either
the Hitchhiker's Guide to the BIOS or in ST Internals).  I have a feeling that
you will have to directly manipulate the screen address register (listed in ST
Internals, and probably elsewhere).

-- 
				- Jonathan Fischer 	(jafischer@watrose)
		or:   	watmath!watrose!jafischer
		or:   	jafischer%watrose@waterloo.csnet
		or:  	jafischer%watrose@waterloo.csnet@csnet-relay.arpa