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From: apratt@atari.UUCP (Allan Pratt)
Newsgroups: comp.sys.atari.st
Subject: Re: TT and the AT emulator
Message-ID: <2848@atari.UUCP>
Date: 4 Mar 91 20:47:03 GMT
References: <27CF781A.29569@orion.oac.uci.edu>
Organization: Atari Corp., Sunnyvale CA
Lines: 29

nguyent@balboa.eng.uci.edu (Thien Nguyen) writes:

>In article <something> <someone> writes:
>>Atari has been working on a software version of an AT emulator for their TT
>>computer (it should emulate VGA also).  When released, it will be bundled
>>with all TT's in the future and previous owners of TT's will get the 
>>software emulator for FREE!  The emulator will considerably slow down
>>operations because it is software and the 68030 is emulating an 80286/386
>>chip.  Therefore, expect it to run at about the speed of a 12 Mhz AT which
>>is pretty good.
>>S.S.

Don't believe everything you read, especially about Atari bundling stuff
with computers for free and providing upgrades for free. In my *personal*
opinion, it is unlikely, but I don't make marketing decisions around here.
This is a No Comment on the subject on the emulation software itself --
that's not my department either.

>Considering that 25 Mhz, 68040 in NEXT emulates an PC AT at 12 Mhz, '030
>emulating it at 12 Mhz is pretty good.

A TT version wouldn't have Mach to contend with.  Clock-time for running a
program (as opposed to CPU time) could be faster on a 32MHz '030 with TOS
(read: essentially zero OS overhead) than on a 25MHz '040 with Mach (read:
UNIX).

============================================
Opinions expressed above do not necessarily	-- Allan Pratt, Atari Corp.
reflect those of Atari Corp. or anyone else.	  ...ames!atari!apratt