Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!hplabs!hp-pcd!hpvcfs1!johne
From: johne@hpvcfs1.HP.COM (John Eaton)
Newsgroups: comp.arch
Subject: Re: Self-modifying code
Message-ID: <1080003@hpvcfs1.HP.COM>
Date: 11 Oct 89 21:10:09 GMT
References: <1080@mipos3.intel.com>
Organization: Hewlett Packard, Vancouver, WA
Lines: 15

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< 
i< What the advantage of using self-modifying code that non-self-modifying code
cannot achieve?
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Job Security...

I once traced a problem in some PC software to a bit of SMC that worked
on a 8088 but not on a 8086. Turned out that the larger prefetch of an
8086 would grab the old data before the write and use that instead of
what the programmer intended.


John Eaton
!hpvcfs1!johne