Xref: utzoo comp.sys.m68k:640 comp.sys.mac:1047
Path: utzoo!utgpu!water!watmath!clyde!rutgers!ames!oliveb!epimass!csi!jwhitnel
From: jwhitnel@csi.UUCP (Jerry Whitnell)
Newsgroups: comp.sys.m68k,comp.sys.mac
Subject: Re: I've heard of disclaimers but this is ridiculous
Keywords: stack frames
Message-ID: <1320@csib.csi.UUCP>
Date: 16 Dec 87 18:21:10 GMT
References: <7006@apple.UUCP>
Reply-To: jwhitnel@csib.UUCP (Jerry Whitnell)
Organization: Communications Solutions Inc., San Jose, Ca
Lines: 29

In article <7006@apple.UUCP> jk@apple.UUCP (John Kullmann) writes:
                 -----
>HELLO?? WHAT THE HELL DOES THAT MEAN????  
>Seems just a bit "too" general for me.  Isn't it a bit late in the game 
>to publish such a general disclaimer on the part now??!?!!

Somebody from Apple flaming about changing the rules in mid-game?  A
case of the pot calling the kettle black.  Remember switcher?  Please
don't expect any sympathy (or any help) with an attitude like yours.

> Does this mean
>I have to go back and rewrite all the exception handlers I've ever
>written for the 680x0 parts and turn them into psychic AI modules?
>How can I write an exception handler and NOT depend on what the exception
>stack frame looks like?
>
>Does this mean something to anyone? Am I on drugs? Or what?

But in spite of your attitude I tell you what it means.  All it means is
that the exception frames vary between different members of the 680x0 family.
Hence an exception handler may require a rewrite to work with a 68020.
The 68000 and 68008 use the same stack frames, the 010 has a few changes and
the 020 has a number of new frames.  I believe the 030 has same set of frames
as the 020.

Jerry Whitnell				Lizzi Borden took an axe
Communication Solutions, Inc.		And plunged it deep into the VAX;
					Don't you envy people who
					Do all the things You want to do?