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From: jvc@prism.UUCP
Newsgroups: comp.sys.ibm.pc
Subject: Re: Need help with undocumented MS-DOS
Message-ID: <206900083@prism>
Date: Wed, 30-Sep-87 09:10:00 EDT
Article-I.D.: prism.206900083
Posted: Wed Sep 30 09:10:00 1987
Date-Received: Sun, 4-Oct-87 21:37:58 EDT
References: <790@micomvax.UUCP>
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Nf-From: prism.UUCP!jvc    Sep 30 09:10:00 1987


/* Written 10:00 am  Sep 29, 1987 by barry@micomvax.UUCP in comp.sys.ibm.pc */
/* ---------- "Need help with undocumented MS-DOS " ---------- */
>I am trying to find out what a specific function call within MS-DOS does
>(purpose of functon, inputs, outputs, error code returns).
>The function is function 37h of Interrupt 21h.

SWITCHAR/set or query the current command-line parameter delimeter
	(usually slash ('/') ASCII 2FH)
	if AH=0, then set the switch character to the value of DL
	if AH=1, then return the current switch character in DL
	note: This is an undocumented DOS service

Info from: Dan Rollins' "IBM PC 8088 Macro Assembler Programming" C1985

jvc@mirror.tmc.com