Vertical Retrace interrupt?

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#401

From: Christopher David Miller
Date: Mon, 03 Aug 1992 23:32

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Hi, I'm new to VGA programming, and I want to know if it is possible to
detect the retrace with an interrupt, rather than polling for it.  I want to
use this so I can flip screens for animation every retrace - I think this is
how it's done?  If anyone has some source, I'd really appreciate it
Cheers,  Chris.

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Message-ID: <1992Aug3.233204.16778@cs.aukuni.ac.nz>

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Path: arc1-ca.pugleaf.net!sparky!uunet!gatech!darwin.sura.net!wupost!waikato.ac.nz!aukuni.ac.nz!cs18.cs.aukuni.ac.nz!cmil2
Newsgroups: rec.games.programmer
Subject: Vertical Retrace interrupt?
Message-ID: <1992Aug3.233204.16778@cs.aukuni.ac.nz>
From: cmil2@cs.aukuni.ac.nz (Christopher David   Miller         )
Date: Mon, 3 Aug 1992 23:32:04 GMT
Organization: Computer Science Dept. University of Auckland
Keywords: retrace
Summary: How do you use the vert. retrace interrupt?
Lines: 6