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From: info-mac@uw-beaver (info-mac)
Newsgroups: fa.info-mac
Subject: disk spinning during macsbug
Message-ID: <1215@uw-beaver>
Date: Fri, 13-Jul-84 15:24:20 EDT
Article-I.D.: uw-beaver>.1215
Posted: Fri Jul 13 15:24:20 1984
Date-Received: Sun, 15-Jul-84 01:11:07 EDT
Sender: daemon@uw-beave
Organization: U of Washington Computer Science
Lines: 10

From: Bill Croft <croft@safe>
Since the disk drive motor is shut off with a software timeout,
it can remain on "forever" if you hit a breakpoint in macsbug
while it's spinning.  Bruce Horn offers this advice:

	Yep, you're right, it's timed in software.  
	The address to kill the motor is the IWM, DFF1FF.  
	Just do a DM DFF1FF in the debugger and it should turn the thing off.
	
	Bruce