Blitter Usage Question

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#6655

From: Darren Burns
Date: Thu, 15 Nov 1990 03:24

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I wonder if anyone can help me with a puzzling problem I have.  I recently
started trying to program the blitter, directly writing to the hardware
registers just for fun.  No matter what I did I never saw anything on
my screen (I was trying to line draw).
 
Quite by accident, I discovered that if I used Move() and Draw() to draw
a line on the screen before using the blitter, the line I was trying to
draw with the blitter appeared!

I'm guessing, maybe Move() and Draw() initialize the blitter somehow and
I'm missing the info on how to do this.

Anybody got any ideas?  Anybody got any source code for using the blitter
directly like I'm trying to do?

Thanks,
Darren Burns

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Message-ID: <1270@geovision.UUCP>

Path: arc1-ca.pugleaf.net!utzoo!utgpu!cunews!cognos!geovision!djb

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!cunews!cognos!geovision!djb
From: djb@geovision.uucp (Darren Burns)
Newsgroups: comp.sys.amiga.tech
Subject: Blitter Usage Question
Message-ID: <1270@geovision.UUCP>
Date: 15 Nov 90 03:24:31 GMT
Reply-To: djb@geovision.UUCP ()
Distribution: na
Organization: GeoVision Corp, Ottawa, Canada
Lines: 17