Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!watmath!clyde!burl!ulysses!allegra!princeton!caip!lll-crg!seismo!rochester!kodak!elmgate!jdg From: jdg@elmgate.UUCP (Jeff Gortatowsky) Newsgroups: net.micro.atari16 Subject: Re: Question on processor expansion Message-ID: <477@elmgate.UUCP> Date: Mon, 23-Jun-86 09:08:06 EDT Article-I.D.: elmgate.477 Posted: Mon Jun 23 09:08:06 1986 Date-Received: Wed, 25-Jun-86 05:51:08 EDT References: <8606201839.AA06129@pavepaws> Organization: Eastman Kodak Co., Rochester, NY Lines: 28 Summary: No it is not possible/practical to upgrade the ST (as it sits) to a 010/020. In article <8606201839.AA06129@pavepaws>, dillon@PAVEPAWS.BERKELEY.EDU (Matt Dillon) writes: > > Anybody know if it's possible to upgrade the ST's 68000 to a > 68010 or 68020? > > -Matt As far as I've been able to determine the ST does no checking on boot for the type of 68000 installed. Therefore the exception handling routines in TOS will bomb (ie. lockup) miserably. Further (and I've mentioned this before) some dimwit went and put the exception numbers in the upper byte of the exception vectors!!!! Odviously this will give you an 'E' ticket into the Twilight Zone on the 020! Much of the system software in the ST is really JUNK. In Atari's defense however, they never claimed upwards compatibility among future machine archetectures (SP?). Still I'd pay another $50-$75 to get a new version of TOS in ROM (2.0 ?). No, this is not rumored. I just want Atari to know if they ever WERE to decided to re-write some of TOS/GEMDOS themselves (and get it right) instead of DRI's junk, *I'd* be willing to pay for it. Neil? Others???? Comments??? -- Jeff Gortatowsky {allegra,seismo}!rochester!kodak!elmgate!jdg Eastman Kodak Company