Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!henry
From: henry@utzoo.UUCP (Henry Spencer)
Newsgroups: net.micro,net.arch
Subject: Re: What if IBM used a 68000
Message-ID: <6178@utzoo.UUCP>
Date: Wed, 27-Nov-85 17:45:59 EST
Article-I.D.: utzoo.6178
Posted: Wed Nov 27 17:45:59 1985
Date-Received: Wed, 27-Nov-85 17:45:59 EST
References: <212@fas.ri.cmu.edu>, <702@petrus.UUCP>
Organization: U of Toronto Zoology
Lines: 13

> 	besides, it is quite possible to write position ind. code
> 	with a 68000.  (i.e. no MMU required)

Try writing the code for position-independent pointers some time; it's lots
of fun, especially if you are never allowed to have a position-dependent
value around even for an instant (except in pre-agreed places like the A
registers).  It's easy to write position-independent code if that code and
its data will *never* need to be moved once it starts running.  Writing code
that can be moved at randomly-chosen times and continue to run is not
so simple.
-- 
				Henry Spencer @ U of Toronto Zoology
				{allegra,ihnp4,linus,decvax}!utzoo!henry