Article View: net.micro.atari
Article #1891Re: unix DOES need an MMU (well I think so!)
From: Jim Omura
Date: Sun, 05 Jan 1986 16:23
Date: Sun, 05 Jan 1986 16:23
47 lines
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2211 bytes
I'm *really* getting tired of this discussion. I have answer Mr.
Kenyon privately via 'mail' but this posting shows that it is likely he
has not been receiving my mail. As such, I hope the Atari fans will
bear with me and we'll all hope he reads this:
In article <933@mcvax.UUCP> simon@mcvax.UUCP (Simon Kenyon) writes:
>
>what about all the relocation fancy footwork that unix does
>to handle the per process data area
OS-9 does the same or similar 'fancy footwork' without an MMU
>what about multiple processes
OS-9 handles multiple processes without an MMU
>are we proposing going back to the dark ages of rsx (unmapped)
>where programs were linked for different load addresses
No. If OS-9 can do it, then you can do it with some
other Unix or Unix clone. Then again, why bother, you'll have
OS-9 anyway. :-)
>memory mangement is required for two reasons
>protection and reloxcation
>the first you can live without (that is if you never have pointers
>which point nowhere)
>the second is kind of hard to live without
I can live without the protection. I *have* been living without
it on my Color Computer, running OS-9 (6809) for some time now. I
think most Atari 520ST users will find it quite satisfactory. Please
go look at OS-9 68K before you do any further posting. I read
net.micro.atari to read about Atari.
>--
>simon kenyon
>simon@mcvax.UUCP
>national software centre, dublin, ireland
--
James Omura, Barrister & Solicitor, Toronto
ihnp4!utzoo!lsuc!jimomura
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site lsuc.UUCP Path: arc1-ca.pugleaf.net!utzoo!lsuc!jimomura From: jimomura@lsuc.UUCP (Jim Omura) Newsgroups: net.micro.atari Subject: Re: unix DOES need an MMU (well I think so!) Message-ID: <1014@lsuc.UUCP> Date: Sun, 5-Jan-86 11:23:44 EST Article-I.D.: lsuc.1014 Posted: Sun Jan 5 11:23:44 1986 Date-Received: Sun, 5-Jan-86 11:43:38 EST References: <933@mcvax.UUCP> Reply-To: jimomura@lsuc.UUCP (Jim Omura) Organization: Barrister & Solicitor, Toronto Lines: 47 Summary: I'm getting tired of this.