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From: jjg@ccice5.UUCP (John Grana)
Newsgroups: net.micro.amiga
Subject: Re: Amiga - 68000 chip
Message-ID: <910@ccice5.UUCP>
Date: Fri, 6-Sep-85 19:28:30 EDT
Article-I.D.: ccice5.910
Posted: Fri Sep  6 19:28:30 1985
Date-Received: Mon, 9-Sep-85 02:27:58 EDT
References: <3429@garfield.UUCP> <916@vax2.fluke.UUCP> <229@tikal.UUCP> <728@umd5.UUCP>
Distribution: net
Organization: CCI Central Engineering, Rochester, NY
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> 
> There is a more fundamental problem;  the state of the stack during expection
> processing for a 68010 is not identical to the 68000's.  This only is of
> concern to the underlying operating system and if it was clever enough could
> probably handle both.  I don't remember for sure, but this may only be a
> problem for bus error type exceptions.
> 
> Louis A. Mamakos WA3YMH   University of Maryland, Computer Science Center

	In the case of the 68010, this is a problem for ANY exception. The
68000 places 3 words on the stack (sr,pc), while the 68010 'dumps' 4 ( sr,
pc, vector#/format)!

							john grana
							C.C.I
							Rochester, NY
							jjg@ccice5