Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!sdd.hp.com!caen!spool.mu.edu!cs.umn.edu!msi.umn.edu!noc.MR.NET!ns!ns!logajan From: logajan@ns.network.com (John Logajan) Newsgroups: comp.sys.atari.st Subject: The demo of 15 gray levels Message-ID: <1991Jun19.195233.20589@ns.network.com> Date: 19 Jun 91 19:52:33 GMT Sender: news@ns.network.com Organization: Network Systems Corporation Lines: 20 Originator: logajan@ns Nntp-Posting-Host: ns That demo I sent out which displayed 15 gray levels on an ST was intended for COLOR systems. Though there are 16 color registers on a color system there are only three bits per color meaning you can only get eight shades of gray (except, of course STe's.) I've received a number of complaints that it fails to work, but only one person who has complained has mentioned whether he was using a mono or color system. The reason I didn't post the code was that the data portion, which is RLE encoded, is huge in its ASCII hex representation, well over 150k. The only other potential problem I am aware of is how I allocate memory for the second virtual screen. I don't. I just assume I own 32k of memory after the end of the program. -- - John Logajan @ Network Systems; 7600 Boone Ave; Brooklyn Park, MN 55428 - logajan@ns.network.com, 612-424-4888, Fax 612-424-2853