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From: billsey@agora.UUCP (Bill Seymour)
Newsgroups: comp.sys.amiga
Subject: Re: CMI 68000 (68010?) 2x questions
Message-ID: <1184@agora.UUCP>
Date: 10 Oct 88 16:52:07 GMT
References: <390@ga.ecn.purdue.edu:
Organization: Advanced Solutions, Hillsboro, OR
Lines: 41

From article <390@ga.ecn.purdue.edu:, by rodmar@ga.ecn.purdue.edu (Rodney L Martin):
: I have a couple of simple questions for the CMI 68000 2x
: 
: 1.  Is there any improvements with the MC68881 installed for general
:     computing?  What I mean is, would those programs that don`t directly
:     address the MC68881 be any quicker?

	No, the 68881 doesn't do anything for you unless the program has
been written to use the IEEE libraries. You wil also need to have the 1.3
versions of the IEEE libraries on your system disk the first time you run
the program for it to access the math chip. We have a distribution license
from Commodore to send the IEEE libraries out with our utilities disk, but
you'll have to move them over to your workbench.

: 2.  Would a MC68010 @ 16 Mhz produce faster processing over the MC68000?

	Yes it would, slightly. But nobody makes a 16Mhz 68010! If you have
access to a lot of 12Mhz 68010s you might be able to qualify one for use at
14Mhz... Make sure you try it with a heat gun going, you wouldn't want to
choose one that fails after an hour or so of use.

: 3.  What is the speed increase of the IBM Transformer?  (with and w/o MC68881)

	Not a lot, but there's some speed up. Since the PA resets to 7Mhz with
either a cold or warm boot, the regular version of Transformer would only run
at 7Mhz. Phil Staub's PSTranformer front end fixes that. He sets up the system
for the Transformer to run, configuring all the memory and such, and then 
starts the AT1 program going without reseting the system. This allows you to
use expansion memory and leave yourself at 14Mhz. I don't have much IBM soft-
ware, but the terminal program I have will run at 1200 baud now...

: Answers to these questions could sway my desision in purchasing the product.

	Well, I'm prejudiced, but I sure hope I've swayed you... :)

:               Rod
-- 
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