Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!utgpu!water!watnot!watmath!clyde!cbatt!ucbvax!watcgl.waterloo.edu!drforsey
From: drforsey@watcgl.waterloo.edu.UUCP
Newsgroups: mod.computers.68k
Subject: Submission for mod-computers-68k
Message-ID: <8702262018.AA16981@watcgl.uucp>
Date: Thu, 26-Feb-87 15:18:48 EST
Article-I.D.: watcgl.8702262018.AA16981
Posted: Thu Feb 26 15:18:48 1987
Date-Received: Sat, 28-Feb-87 06:20:43 EST
Sender: daemon@ucbvax.BERKELEY.EDU
Distribution: world
Organization: The ARPA Internet
Lines: 27
Approved: info-68k@ucbvax.berkeley.edu

Path: watcgl!drforsey
From: drforsey@watcgl.UUCP (Dave Forsey)
Newsgroups: mod.computers.68k
Subject: Re: Submission for mod-computers-68k
Message-ID: <662@watcgl.UUCP>
Date: 26 Feb 87 20:18:47 GMT
References: <8702242216.AA09273@tekfdi.FDI.TEK.COM>
Reply-To: drforsey@watcgl.UUCP (Dave Forsey)
Distribution: world
Organization: U. of Waterloo, Ontario
Lines: 15

>> For instance, that's why the Amiga doesn't have an MMU; they looked at
>> it, and were looing at $125 for the CPU board. Even at $10 for the
>
>True, when they designed it, an MMU may have been expensive,
>but companies don't turn out new computers every couple of months!  It is
>a very long and difficult process (try years).

There is perhaps a deeper reason for the amiga not using a MMU. The operating
system is based on message passing, those messages are passed by reference
rather than copying. It assumes and is dependent on an single address space.
Unless the OS changes in a major way you'll not get VM on an Amiga.

Dave Forsey
Computer Graphics Laboratory
University of Waterloo.