Article View: comp.sys.amiga.tech
Article #5168Keyboard input and B-Planes.
From: Bob Fahey
Date: Wed, 05 Sep 1990 17:32
Date: Wed, 05 Sep 1990 17:32
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1178 bytes
Hi there. I am writing a utility in Assembly, and am coming across an unknown
problem. I need to be able to display 16 colors (i.e. 4 bit-planes, 640x200).
When I have the copper set at 3 b-planes, everything works great, but when I
switch to 4 b-planes, everything S-L-O-W-S way down.
Is this a hardware problem? It seems that when I read the keyboard, and it
is in 4 b-planes, it takes 2 entire updates to get the key. Is this because
I am using a library to read the keys? (I'm hoping that's not what it is,
because that would involve re-writing the keyboard routine to speed it up.)
Any Suggestions?
Faheyr@iubacs
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<56519@iuvax.cs.indiana.edu>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!usc!samsung!sol.ctr.columbia.edu!cica!iuvax!silver!faheyrShow Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!usc!samsung!sol.ctr.columbia.edu!cica!iuvax!silver!faheyr From: faheyr@silver.ucs.indiana.edu (Bob Fahey) Newsgroups: comp.sys.amiga.tech Subject: Keyboard input and B-Planes. Message-ID: <56519@iuvax.cs.indiana.edu> Date: 5 Sep 90 17:32:19 GMT Sender: news@iuvax.cs.indiana.edu Reply-To: faheyr@silver.ucs.indiana.edu (Bob Fahey) Organization: Indiana University, Bloomington Lines: 13