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From: bjorn@dataioDataio.UUCP (Bjorn Benson)
Newsgroups: net.micro.amiga
Subject: Re: Amiga MMU question
Message-ID: <847@dataioDataio.UUCP>
Date: Mon, 28-Oct-85 20:03:57 EST
Article-I.D.: dataioDa.847
Posted: Mon Oct 28 20:03:57 1985
Date-Received: Wed, 30-Oct-85 04:59:36 EST
References: <192@ucdavis.UUCP>
Reply-To: bjorn@dataio.UUCP (Bjorn Benson
Distribution: net
Organization: Data I/O Corp., Redmond WA
Lines: 31

>     ...but doesn't a multitasking enviroment need some sort of memory
>protection to keep processes from clobering each other.

Yes.

>						...It is my understanding
>that the Amiga does not have an MMU.  

Yes, it doesn't.

>				    ...So this protection must be in software.

Yes, it should be.

>How does this work, and how reliable is it.

There is none, and thus I have no reliability figures.

>					Could I simply write a program
>to march through memory and write over all other processes.

Yes.  One such program can be found by following my 5 easy steps to a crash:

(1)	Boot up, dual drives, the works.  Get to desktop.
(2)	Remove both disks (after the red lights are off!)
(3)	Move one disk icon over the other.
(4)	Answer "continue" to all requesters.
(5)	Watch your Amiga go into spasms.

				Just had a bad day...
				  Bjorn Benson