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Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxn!ihnp4!inuxc!pur-ee!uiucdcsb!robison
From: robison@uiucdcsb.CS.UIUC.EDU
Newsgroups: net.arch
Subject: Re: uninitialized data
Message-ID: <5600035@uiucdcsb>
Date: Sat, 21-Sep-85 11:56:00 EDT
Article-I.D.: uiucdcsb.5600035
Posted: Sat Sep 21 11:56:00 1985
Date-Received: Sun, 22-Sep-85 23:45:05 EDT
References: <436@uvm-cs.UUCP>
Lines: 7
Nf-ID: #R:uvm-cs.UUCP:-43600:uiucdcsb:5600035:000:257
Nf-From: uiucdcsb.CS.UIUC.EDU!robison    Sep 21 10:56:00 1985


One way to trap on uninitialized memory locations is to set the parity bit
incorrectly for uninitialized locations.  If the location is read before being 
written, a bad parity interrupt will occur.  The Burroughs stack machines use
this technique.

- Arch


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