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Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!umich!samsung!usc!apple!bbn!bbn.com!levin
From: levin@bbn.com (Joel B Levin)
Newsgroups: comp.sys.mac,comp.sys.mac.hypercard
Subject: Re: How to recover from a Mac crash (magic number)
Message-ID: <50599@bbn.COM>
Date: 9 Jan 90 14:58:10 GMT
References: <1990Jan9.021328.18712@lsuc.on.ca>
Sender: news@bbn.COM
Reply-To: levin@BBN.COM (Joel B Levin)
Organization: BBN Communications Corporation
Lines: 46

In article <1990Jan9.021328.18712@lsuc.on.ca> dave@lsuc.on.ca (David Sherman) writes:

No, no, no!  Two problems here!


|Suppose your Mac hangs, for whatever reason (bugs in
|software, they've been known to happen).  You want to
|restart, but you'd love to save your work first, from some
|application other than the one which crashed.  (Ain't MultiFinder
|wonderful?)

The method here quit the current application.  It WILL NOT save your
work, close your files, or anything like that.  Unfortunately, it is
possible under MultiFinder that the current application at the time
you press the button is not the one you want to quit from.

Under Uni-Finder this will get you back to the Finder, but it won't
allow you to save your work.

|Press the programmer's button, if you have it installed, and type
|	G 409B24
|and press return.  This gets you back to the Finder.  

NO!  This works on the SE only (possibly by coincidence on other
machines).  You are telling the Mac to restart at the absolute
location in ROM of the _ExitToShell OS routine.  The location in other
models' ROMs is not the same.  (I KNOW it is different on the Plus.)
The results could be disastrous on other models.

If you must try something like this, try typing these two lines after
pressing the button:

   SM 0 A9F4
   G 0

|then save your work and restart.  (If you don't restart, weird
|things happen.)

Since this effectively quits the application, you will not be able to
save your work in that application.  And yes, restarting is a good
idea.

=
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 or {...}!bbn!levin  |  bureau that morning.  Wide-eyed and distraught, she
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