A83: Reading from the graph buffer

To: assembly-83@lists.ticalc.org
Subject: A83: Reading from the graph buffer
From: Via <thevias@csi.com>
Date: Sat, 17 Jan 1998 19:14:08 -0500
Reply-To: assembly-83@lists.ticalc.org


Hi.  I've learned some of the basics of ASM, and I wanted to make a
subroutine that would read from the graph buffer at a certain coord and
basically test if the pixel is on or off.  I tried modifying Movax's
sprite routine, which I found good for drawing sprites, but I could not
make it successfully test if a certain location was on or off.  Instead
of working, it just crashed :-(.  Can anybody help?  I would appreciate
it.

David Via
thevias@csi.com

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