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From: nather@ut-sally.UUCP (Ed Nather)
Newsgroups: net.micro
Subject: Re: Changing SWITCHAR in dos 3.x
Message-ID: <4977@ut-sally.UUCP>
Date: Fri, 23-May-86 11:03:31 EDT
Article-I.D.: ut-sally.4977
Posted: Fri May 23 11:03:31 1986
Date-Received: Sun, 25-May-86 17:36:53 EDT
References: <883@brl-smoke.ARPA>
Organization: U. Texas CS Dept., Austin, Texas
Lines: 38
Summary: 2nd posting - first was incomplete, sorry

In article <883@brl-smoke.ARPA>, bridger@RAND-UNIX.arpa writes:
> This doesn't work for dos 3.1.  Is there another way to do it?

Yes.  Here is a short assembly routine that sets SWITCHAR to "\",
thus letting "/" be used as a pathname separator.  It works under
DOS 2.x and 3.x
---------------------------------------------------------------------------

cseg    segment para public 'code'
        assume cs:cseg,ds:cseg,es:cseg,ss:cseg

org     100h

ent     proc near
        MOV DL,'\'      ; DL was slash, change it to backslash
        MOV AX,3701h    ; AH=CharOper, AL=Set it
        INT 21h         ; DOS Command
        RET
ent     endp
cseg    ends
        end ent
-----------------------------------------------------------------
While you're at it, you might also want to shut up the "echo off" echo
from batch files.  Put the stuff between the dashed lines below into a 
file called "fixcom" and then type the command

      debug command.com < fixcom

and lo! echo is off by default and only chatters if you insist.
---------------------------------------------------------------------
e 105b 2
---------------------------------------------------------------------

-- 
Ed Nather
Astronomy Dept, U of Texas @ Austin
{allegra,ihnp4}!{noao,ut-sally}!utastro!nather
nather@astro.AS.UTEXAS.EDU