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From: aa384@cleveland.Freenet.Edu (Doug Wokoun)
Newsgroups: comp.sys.atari.8bit
Subject: Strange ANTIC anomaly
Message-ID: <23136@know.pws.bull.com>
Date: 8 Apr 91 13:43:51 GMT
Sender: login@pws.bulL.com
Lines: 31


	Recently, I tried to set up a custom display list which did the
following:

          two lines text (gr.0)
          blank scan line               + interrupt
          several lines text            + interrupt at end
          LMS to new text line + horizontal scrolling enable
          LMS back to final line
          wait for VBLANK

	Problem: after the line with horizontal scrolling enabled, the
DL stopped processing.  The last text line was not generated. I tried tweaking
other things, and got garbage after the line with horizontal scrolling.
I finally got it to work by dividing the last LMS line into an LMS with
a blank scan line and then a text mode line.

	Can anyone tell me why this won't work normally?  I don't want to
have to put that blank scan line in there if there is any way around it.

	Also: could anyone direct me to an ftp site when an electronic copy
of De Re Atari could be found?  I have heard of this being on some commercial
service, but I don't have accounts on any of those.

	Thanks in advance!

--
        Doug Wokoun             /      /                | Any inanimate object
(aa384@cleveland.Freenet.Edu)   [o]-[o]                 | floats downstream;
            |||                    L        {_Dug_}     | it takes life to go
    Atari  / | \  S I G          \___/                  | against the current.