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Article View: comp.sys.mac
Article #20945

Re: Is there a recoverable RAM disk for the Mac?

#20945
From: Joel B Levin
Date: Thu, 29 Oct 1987 17:33
20 lines
1463 bytes
In article <3320@uwmcsd1.UUCP> hammen@csd4.milw.wisc.edu.UUCP (Robert Hammen) writes:
:In article <2487@cbdkc1.ATT.COM> joe@cbdkc1.UUCP (Joseph T. Judge) writes:
:>                . . . .   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

This only works on Mac Plus and 512KEnhanced.  This magic number is
the actual address of the exitToShell routine itself in ROM, and it is
different on the SE and II.  I don't have my stuff here and can't tell
you what it is for the SE (but it is different) -- but it is better to
use the trap itself, which is machine independent.

	/JBL
-- 
UUCP: {harvard, husc6, etc.}!bbn!levin
ARPA: levin@bbn.com
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Message-ID: <4250@cc5.bbn.COM>
Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!nbires!hao!husc6!bbn!levin
References: <691@rocky.STANFORD.EDU> <2487@cbdkc1.ATT.COM> <3320@uwmcsd1.UUCP>

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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!nbires!hao!husc6!bbn!levin
From: levin@bbn.COM (Joel B Levin)
Newsgroups: comp.sys.mac
Subject: Re: Is there a recoverable RAM disk for the Mac?
Message-ID: <4250@cc5.bbn.COM>
Date: Thu, 29-Oct-87 12:33:27 EST
Article-I.D.: cc5.4250
Posted: Thu Oct 29 12:33:27 1987
Date-Received: Tue, 3-Nov-87 06:11:53 EST
References: <691@rocky.STANFORD.EDU> <2487@cbdkc1.ATT.COM> <3320@uwmcsd1.UUCP>
Reply-To: levin@cc5.bbn.com.BBN.COM (Joel B Levin)
Organization: BBN Communications Corporation
Lines: 20
Keywords: exitToShell
Summary: This is machine specific