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Article #12906

Re: MEMF_PHYSICAL?

#12906
From: Valentin Pepelea
Date: Mon, 29 May 1989 19:22
27 lines
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Deven Corzine <deven@rpi.edu> writes in
Message-ID: <DEVEN.89May28030529@daniel.rpi.edu>

> "superior functionality"?  What is inherently superior about a single
> address space?

Faster message passing, faster context switches (no need to copy memory and
translate addresses (MOVES instruction)), but best of all, the ability of
programs to access its other address space directly. I for one think its really
neat to have hacks such as Vscreen, Dmouse, Snip-It and others which would be
rather impossible to implement if the single addressing space was not used.

> > I stand by the model of the ideal real-time message-based operating system.
>
> Exec is pretty good, but I wouldn't say ideal.

I was saying that ideal is what I propose for virtual memory and memory
protection. Indeed, Exec is not ideal as it stands now, but it will be after
I upgrade it.   :-)

Valentin
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From: 451061@UOTTAWA.BITNET (Valentin Pepelea)
Newsgroups: comp.sys.amiga.tech
Subject: Re: MEMF_PHYSICAL?
Message-ID: <8905291930.AA10122@jade.berkeley.edu>
Date: 29 May 89 19:22:57 GMT
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