Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!infonode!ingr!b11!jmack From: jmack@b11.ingr.com (Cery McCormick) Newsgroups: comp.sys.atari.st Subject: Re: TT TOS (and operating systems in gen Keywords: TOS OSs carts??? Message-ID: <9834@b11.ingr.com> Date: 9 Jan 91 01:03:34 GMT References: <1991Jan7.005252.10937@bwdls61.bnr.ca> <3203@gmuvax2.gmu.edu> Distribution: na Organization: Intergraph Corp. Huntsville, AL Lines: 12 In article , jhenders@jonh.wimsey.bc.ca (John Henders) writes: > > How about packing the part that is loaded into memory and unpacking > on boot-up? I think ST Internals said there were several tricky ways > to get 512k out of the cartridge port. > I have a 1meg cartridge RAM disk. You could put almost any amount of memory on a cartridge. You are elimited only by the cost. The problem doing this is, that you need a special software driver to access it. With anything 128k or less, the Atari can access the memory (ROM) as if it were internal ROM. To put more than 128k ROM on the port, you would have to have SOME code in internal ROM that knew how to read the cartridge port.