command.com internals

Article View: net.micro.att

Article #938

#938

From: SCHEUTZOW,MICHAEL J
Date: Tue, 15 Apr 1986 21:34

24 lines
1515 bytes

[chomp!]

OK MS-DOS hackers - here's a tough one.  Can anyone tell me what the purpose of
the different fields in the ms-dos command table are:

It consists of:  1 byte - number char in command name + 1
                 x byte - the command name
                 1 byte - 00 or 01, purpose unknown
                 2 byte - an address/offset of some sort

What I am interested in is how to locate the code that is associated with a
given command. The short term goal here is to reverse the operation of the
/w flag on dir, which causes a 'wide' list across the screen instead of the 
usual list down the screen. Thanks for the help.


Mike Scheutzow                     # include <disclaimer.c>
Georgia Tech                       
(404) 355-6871
                 Lyrics: "My wife ran off with my best friend,
                          and I sure do miss him..."
       
 ...!{allegra,ihnp4,seismo}!gatech!gitpyr!gt6294b

Technical Details

Message-ID: <1671@gitpyr.UUCP>

Path:

arc1-ca.pugleaf.net!utzoo!decvax!bellcore!ulysses!allegra!mit-eddie!genrad!panda!talcott!harvard!seismo!gatech!gitpyr!gt6294b

Show Full Headers

Complete Article Headers

Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: arc1-ca.pugleaf.net!utzoo!decvax!bellcore!ulysses!allegra!mit-eddie!genrad!panda!talcott!harvard!seismo!gatech!gitpyr!gt6294b
From: gt6294b@gitpyr.UUCP (SCHEUTZOW,MICHAEL J)
Newsgroups: net.micro.att,net.micro.pc
Subject: command.com internals
Message-ID: <1671@gitpyr.UUCP>
Date: Tue, 15-Apr-86 16:34:37 EST
Article-I.D.: gitpyr.1671
Posted: Tue Apr 15 16:34:37 1986
Date-Received: Thu, 17-Apr-86 21:41:37 EST
Distribution: na
Organization: Georgia Institute of Technology
Lines: 24
Keywords: dir, command