Article View: comp.sys.mac
Article #20958Re: Is there a recoverable RAM disk for the Mac?
From: Marc Hannah
Date: Thu, 29 Oct 1987 21:31
Date: Thu, 29 Oct 1987 21:31
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1552 bytes
In article <3320@uwmcsd1.UUCP>, hammen@csd4.milw.wisc.edu (Robert Joseph Hammen) writes:
> In article <2487@cbdkc1.ATT.COM> joe@cbdkc1.UUCP (Joseph T. Judge) writes:
...
> >(i.e Dumb programmer mistake, hang, etc - yea, yea so I forgot to put
> >an exit in the program). Hit the Programmer's Switch (into that goofy
> >Dialog Box or MacsBug) and type:
> > SM 0 A9F4
> > G 0
>
> An alternative way is to type the following after hitting the interrupt switch:
> G 40F6D8
> Robert Hammen Computer Applications, Inc.
The first method of trapping to _ExitToShell is NOT ROM dependent
and should work on all Macintosh computers. The second method above is
not only ROM dependent, but should Apple patch the _ExitToShell trap
(say in MultiFinder or some future OS enhancement), it will not work
properly. I found this out the hard way on a Mac II. Use the first
incarnation!
David Gelphman
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!seismo!sundc!pitstop!sun!decwrl!labrea!Shasta!mrh From: mrh@Shasta.STANFORD.EDU (Marc Hannah) Newsgroups: comp.sys.mac Subject: Re: Is there a recoverable RAM disk for the Mac? Message-ID: <2175@Shasta.STANFORD.EDU> Date: Thu, 29-Oct-87 16:31:41 EST Article-I.D.: Shasta.2175 Posted: Thu Oct 29 16:31:41 1987 Date-Received: Wed, 4-Nov-87 01:48:58 EST References: <691@rocky.STANFORD.EDU> <2487@cbdkc1.ATT.COM> <3320@uwmcsd1.UUCP> Organization: Stanford University Lines: 22 Keywords: RAM disk Summary: ROM dependent suggestion