Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!MIAMIU.BITNET!KC95OPER From: KC95OPER@MIAMIU.BITNET (Kent Covert) Newsgroups: comp.sys.atari.8bit Subject: Re: 64K Message-ID: <8909011149.AA24237@ucbvax.Berkeley.EDU> Date: 1 Sep 89 12:42:41 GMT References: Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 13 I'm not exactly sure how to do it, but there is a book out (I't may be hard to find) called Mapping the Atari by Ian Chadwick (I think) that tells a great deal about the Atari OS as well as listing most of the memory addresses in the computer. There is also a section telling some of the differences between the old 800's and the XL's. You might try giving this book a try. To tell you the truth though, it would probably be easier to just buy an 800XL and not worry about it. You can buy one for around $60 or less if you look. Or why not just upgrade to an ST? Good Luck, Kent Covert Miami University of Ohio