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From: mrush@csuchico.edu (Matt "C P." Rush)
Newsgroups: comp.sys.amiga.hardware
Subject: MMU games with Motorola chips
Message-ID: <1990Sep14.185419.28320@ecst.csuchico.edu>
Date: 14 Sep 90 18:54:19 GMT
Sender: news@ecst.csuchico.edu (USENET)
Reply-To: mrush@csuchico.edu
Organization: California State University, Chico
Lines: 28


	(OK, this is not DIRECTLY Amiga oriented, but....)

	I have a question about an MMU on a 680x0 based computer:

	On a system with Memory Mapped I/O, is it possible to set up the
MMU so that USER programs can have ALL addresses go to RAM, yet have the OS
still be able to access the magic I/O address?  (sort of make ALL I/O through
OS calls, and give the USER a completely RAM address space; regardless of
whether or not this is PRACTICAL :-)

	On a more Amiga-oriented note:  There's been talk that we may get
Virtual Memory in later versions of the OS; will it be possible to have
Virtual CHIP Memory?

	And finally, how do all you ENGINEER-types (like Dave H.) manage to
design NEW hardware, AND keep up on everybody ELSES (Intel, IBM, Apple, etc.)
new hardware AT THE SAME TIME???

	-- Matt

    *~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*
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