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Path: utzoo!watmath!clyde!cbosgd!ihnp4!think!ejb
From: ejb@think.ARPA (Erik Bailey)
Newsgroups: net.micro.pc
Subject: COMPAQ DeskPro Speed Switch (solution!)
Message-ID: <3325@think.ARPA>
Date: Sat, 9-Nov-85 12:16:30 EST
Article-I.D.: think.3325
Posted: Sat Nov  9 12:16:30 1985
Date-Received: Sun, 10-Nov-85 08:57:35 EST
Reply-To: ejb@godot.UUCP (Erik Bailey)
Distribution: net
Organization: Thinking Machines, Cambridge, MA
Lines: 42

[Go ahead, eat my day!]

Well, response from my (ancient) plea for DeskPro software speed switching
has finally picked up (2 whole msgs!). Anyway, a couple days ago this
appeared in my mailbox. I immediately tried it, and found that it worked.
I wanted to find out HOW it worked, so I fired up PFIXPLUS (symbolic
debugger), and traced the code through. But, not knowing a thing about
8086 ASM, I was unable to extract the relavent part of MODE.COM to do
the switch. Can anyone do this? Unfortunately I cannot post ASM to MODE,
as (I assume) it is copyrighted by Compaq. Well, here is the msg, and
THANKS to Fred McClimans (?) for this bit of undocumented info. --Erik

----------------------------Fold, staple, mutilate--------------------------

Received: from ddn2 (ddn2.arpa) by GODOT.THINK.COM; Thu, 7 Nov 85 11:08:55 est
Date: 7 Nov 85 10:52 EST
From: McClimans@DDN2.ARPA
Subject: Compaq MODE command
To: ejb@think.com
Cc: McClimans@DDN2.ARPA


After putting in some time last night on the Compaq dilemma, I came up with 
this:
                  MODE SPEED=

I don't know if you already hit on this (it isn't in the Compaq doc's), but
it is interesting none the less.  The next step is to break it down.
- Fred

---------------------------unfold, unstaple, unmutilate--------------------
-- 

_   _   _   _   _   _   _   _   _   _   _   _   _   _   _   _   _   _   _
 -_- -_- -_- -_- -_- -_- -_- -_- -_- -_- -_- -_- -_- -_- -_- -_- -_- -_-

Erik Bailey        -- 7 Oak Knoll                 (USENET courtesy of
ihnp4!godot!ejb       Arlington, MA  02174        Thinking Machines Corp.
ejb@think.com.arpa    (617) 643-0732              Cambridge, MA)

"I was walking in a forest one day and a tree fell in front of me,
 and I didn't hear it."