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From: info-mac@uw-beaver (info-mac)
Newsgroups: fa.info-mac
Subject: Re: How to get back out of the debugger?
Message-ID: <1198@uw-beaver>
Date: Wed, 11-Jul-84 16:54:58 EDT
Article-I.D.: uw-beaver>.1198
Posted: Wed Jul 11 16:54:58 1984
Date-Received: Thu, 12-Jul-84 05:22:41 EDT
Sender: daemon@uw-beave
Organization: U of Washington Computer Science
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From: ERice@HIS-PHOENIX-MULTICS.ARPA
As Ralph noted, and also...

There is a debugger command, UBR (User BReak) which sometimes will pop you
nicely back, and also breaks out of infinite loops in programs which do not
honor interrupts directly.

Short of powering down (and we all like to avoid that), there is an interrupt
button on the back of the Lisa, it's next to the "video out" plug, and will zap
the Lisa even when it's ignoring the power-off button.

Edward Rice