Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site tymix.UUCP Path: utzoo!watmath!clyde!burl!ulysses!allegra!oliveb!tymix!granvold From: granvold@tymix.UUCP (Tom Granvold) Newsgroups: net.micro.cbm Subject: Re: Amiga - 68000 chip Message-ID: <495@tymix.UUCP> Date: Thu, 29-Aug-85 14:43:16 EDT Article-I.D.: tymix.495 Posted: Thu Aug 29 14:43:16 1985 Date-Received: Sat, 31-Aug-85 07:04:32 EDT References: <3429@garfield.UUCP> Reply-To: granvold@tymix.UUCP (Tom Granvold) Distribution: net.micro.cbm Organization: Tymnet Inc., Cupertino CA Lines: 26 Keywords: 68000 68010 Summary: 68000 to 68010, Yes & No - Yes you can replace a 68000 with a 68010 in an Amiga, Atari ST, MAC or any other machine that uses the 68000. The two chips are pin compatable. There are two advanges that I know of for doing this. First, the 68010 can handle page faults where the 68000 cannot. Second, the 68010 can internally hold short loops, 3 or 4 instructions, and therefore execute them faster that the 68000 can. No, putting a 68010 in any of these machines will not probably work. The reason is that the on some execptions, Motorola's name for interrupts, the 68010 saves more information on the stack than the 68000 does. This means that the OS will most likely need a couple of small changes. This is no problem if one knows the OS and has the source. I would not count on Commodore, Apple or Atari to do it for us. So to repleat, it will probably not work to replace the 68000 with a 68010 in an Amiga or other 68000 system. If someone in the S.F. bay area would like to try an experiment, I have a 68010 chip that we can us. If you have an Amiga, Atari ST or MAC and are willing to open it up to change the chip, I'd love to see if it works. Of course I can afford to make this offer since it won't be my machine being messed with :-). I don't have any of these machines yet. I am still debating over whether to get an ST and save money or spend more and get the Amiga. Tom Granvold Tymnet ucbvax!oliveb!tymix!granvold