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From: pepers@enme1.ucalgary.ca (Brad Pepers)
Newsgroups: comp.sys.amiga.emulations
Subject: Re: Emulator Mechanics (sorry long post)
Message-ID: <1991Mar6.004247.8964@cpsc.ucalgary.ca>
Date: 6 Mar 91 00:42:47 GMT
References: <4992@mindlink.UUCP>
Reply-To: pepers@enme1.UUCP (Brad Pepers)
Organization: U. of Calgary, Calgary, Alberta, Canada
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Nntp-Posting-Host: enme1.enme.ucalgary.ca


I have heard this idea discussed a fair bit in research and technical
papers. I think it often gets down to the problem of self-modifying
code. I can write code to 'calculate' an instruction (create a valid
instruction in some hard to decipher way) and then store it in my
code space. Now believe me I never do this but I believe many IBM
programs do. But I'm not sure - maybe a significant portion of them
don't?

   Brad Pepers (pepers@enme.ucalgary.ca or pepers@cpsc.ucalgary.ca)