Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!uunet!crdgw1!crdos1!davidsen
From: davidsen@crdos1.crd.ge.COM (Wm E Davidsen Jr)
Newsgroups: comp.arch
Subject: Re: Self-modifying code
Message-ID: <1148@crdos1.crd.ge.COM>
Date: 16 Oct 89 18:21:52 GMT
References: <6481@pt.cs.cmu.edu> <9175@etana.tut.fi> <672@sce.carleton.ca>
Reply-To: davidsen@crdos1.UUCP (bill davidsen)
Organization: GE Corp R&D Center
Lines: 15


  You *may* be thinking of the CP/M system generation. Since the o/s was
written in absolute assembler it was shipped to run in a small (maybe
16k) system. When you created a larger version there was the original
o/s and a list of locations which needed to be changed. The builder
took a copy of the o/s and added a constant to each of the locations in
the list.

  Then again you may be thinking of something I've happily forgen...

-- 
bill davidsen	(davidsen@crdos1.crd.GE.COM -or- uunet!crdgw1!crdos1!davidsen)
"The world is filled with fools. They blindly follow their so-called
'reason' in the face of the church and common sense. Any fool can see
that the world is flat!" - anon