Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!rochester!rit!ritcv!ajy2208
From: ajy2208%ritcv@cs.rit.edu
Newsgroups: comp.sys.atari.st
Subject: Re: ANTIC
Message-ID: <1021@cs.rit.edu>
Date: 29 Mar 89 15:48:29 GMT
References: <Z4648252@SFAUSTIN.BITNET> <890328.23104678.028665@SFA.CP6>
Sender: news@cs.rit.edu
Reply-To: ajy2208%ritcv@cs.rit.edu (Albert Yarusso)
Organization: Rochester Institute of Technology, Rochester, NY
Lines: 13

ANTIC is a chip found in the Atari 8-bit computer.  It handles graphics
for the computer so the main processor (the 6502) doesn't have to.  
Not quite like the blitter (which just moves block memory around) chip
found on the ST's, the Antic chip produces the screen display itself 
(using the display list, a miniature program that tells Antic how the
display is to be 'drawn').  If the Antic chip is disabled (by stuffing
a 0 in memory location 559), processing speed is increased roughly
30%...

  Albert Yarusso

  Bitnet:  ajy2208@ritvax.bitnet
  Internet:  ajy2208.ritcv.rit.edu