Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!ucsd!orion.oac.uci.edu!ucivax!jarthur!uunet!mnemosyne.cs.du.edu!isis.cs.du.edu!echadez
From: echadez@isis.cs.du.edu (Edward Vincent Chadez)
Newsgroups: comp.sys.amiga.hardware
Subject: MMR and MMU questions
Message-ID: <1991May23.194235.5616@mnemosyne.cs.du.edu>
Date: 23 May 91 19:42:35 GMT
Sender: usenet@mnemosyne.cs.du.edu (netnews admin account)
Reply-To: echadez@isis.cs.du.edu (Edward Vincent Chadez)
Distribution: usa
Organization: Nyx, Public Access Unix (sponsored by U. of Denver Math/CS dept.)
Lines: 30
Disclaimer1: Nyx is a public access Unix system run by the University of
Disclaimer2: Denver for the Denver community.  The University has neither
Disclaimer3: control over nor responsibility for the opinions of users.

(advance apologies to Steve Worley, who says I should just by an Amiga3000)

I have some rudimentary questions regarding the Mega-Midget Racer (from
CSA).  Even more basic are my questions on the MMU.  First of all,
what function does the MMU accomplish?  I realize that to use Dave's SetCPU
program, an MMU is required.  Which brings me to my second question, what
__exactly__ does SetCPU do??  I know only of the feature which allows the
operating system to be moved to 32-bit ram.  Finally, is static ram required
to perform the latter function??

As far as my MMR questions (which I believe should be directed to c.s.a.
marketplace) what percentage is the compatibality base with other
peripherals??  Are there known incompatiablities?

And finally, what risks would I be taking trying to run a 16Mhz MC68881
as a coprocessor to a 20Mhz or 33Mhz MC68030??  The answer I got from
CSA was that it "was not recommended" but the operator hinted that it
could be done.  Please understand that this would not be a final
configuration of the board, but rather an intermediate function until
a 33Mhz or 50Mhz FPU could be purchased.

Thank you in advance for your answers.  And again, apologies to Steve,
who has told me to save my pennies for an Amiga3000.

Edward Chadez, Amiga500 owner.

--
---//----------------------------------------------------------------------
 \X/ echadez@isis.cs.du.edu                                   Edward Chadez
Amiga500-------------------------------------------------------------------