Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site uw-beaver Path: utzoo!watmath!clyde!cbosgd!ihnp4!zehntel!tektronix!uw-beaver!info-mac From: info-mac@uw-beaver Newsgroups: fa.info-mac Subject: Re: Sprite troubles. Message-ID: <130@uw-beaver> Date: Fri, 7-Dec-84 20:11:08 EST Article-I.D.: uw-beave.130 Posted: Fri Dec 7 20:11:08 1984 Date-Received: Mon, 10-Dec-84 02:35:42 EST Sender: daemon@uw-beaver Organization: U of Washington Computer Science Lines: 10 From: winkler@harvard.ARPA (Dan Winkler) > Anyway I can tell that MacPaint > manages to copybits the entire Paint window in the retrace time, I don't think that's true. As I recall from what Bill said, he uses both video buffers and only manages to switch between them in the retrace time. He also keeps yet another (third) copy of the screen to allow undo. So the MacPaint code is squeezed into even less memory than you might think.