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From: donw@zehntel.zehntel.com (Don White)
Newsgroups: comp.sys.amiga.tech,comp.sys.amiga
Subject: Re: Fast 2-D Scrolling Method Needed
Message-ID: <791@zehntel.UUCP>
Date: 2 Mar 89 20:44:47 GMT
References: <112@dg.dg.com>
Sender: usenet@zehntel.UUCP
Reply-To: donw@zehntel.UUCP (Don White)
Organization: Zehntel, Inc. Walnut Creek, CA
Lines: 19

In article <112@dg.dg.com> bosch@dg.UUCP (Derek Bosch) writes:
>Hi!  I am working on a couple of projects that require extremely fast
>2-D scrolling of a 16 or 32 color playfield.  The entire display is going to
>be roughly 4 lo-res screens high, by 5 lo-res screens wide, so that would 
>	Derek Bosch
>	Data General

       This should probably be in comp.sys.amiga.tech, but here goes,
   If you allocate and store all your bitmaps in ram, you are going to
   be using a bunch of memory. There is no way around that. If you want
   speed, storing in RAM is the best way to go. After that, check the RKM
   for uses of Dual Play field and SuperBitMap. I think there are specific
   commands for doing scrolling.

   Don White
   zehntel!donw
   Box 271177 Concord, CA. 94527-1177

   Follow-ups to comp.sys.amiga.tech please.