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From: kjm@ut-ngp.UTEXAS (Ken Montgomery)
Newsgroups: net.arch
Subject: Re: uninitialized data
Message-ID: <2440@ut-ngp.UTEXAS>
Date: Mon, 30-Sep-85 18:43:34 EDT
Article-I.D.: ut-ngp.2440
Posted: Mon Sep 30 18:43:34 1985
Date-Received: Fri, 4-Oct-85 04:35:25 EDT
References: <436@uvm-cs.UUCP>
Distribution: net
Organization: UTexas Computation Center, Austin, Texas
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>  Laex Colvin asks about an architecture that traps on using uniniitialized
>data.  The CDC 6000 series architecture does sort of.  An option to the loader
>will cause all data locations to be filled with a bit pattern representing
>"indefinite" which the CPU will choke on.   [Stephen J. Hartley]

Unfortunately, this only works for floating point.  The non-floating-point
arithmetic units will have no problem with this pattern.

--
The above viewpoints are mine.  They are unrelated to
those of anyone else, including my cat and my employer.

Ken Montgomery  "Shredder-of-hapless-smurfs"
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