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From: coleman@sask.UUCP (Geoff Coleman @ College of Engineering)
Newsgroups: comp.sys.ibm.pc
Subject: Interrupt 21H and function 30H
Message-ID: <802@sask.UUCP>
Date: Mon, 20-Jul-87 00:46:42 EDT
Article-I.D.: sask.802
Posted: Mon Jul 20 00:46:42 1987
Date-Received: Fri, 24-Jul-87 01:14:07 EDT
Organization: University of Saskatchewan
Lines: 22
Keywords: 21H


	This weekend I was reading the Technical Reference Manual
(Volume 2) for DEC's VaxMate (no I didn't buy one of these boxes
I just borrowed the manuals). On page 16-3 They say that for function 30H
of interrupt 21H the OEM version number of MS-DOS is returned in 
register BH. They say that DEC's number is 16H and that for an IBM-PC
is 00H. 
	Does anyone out there no if this is a standard return for MS-DOS
and if so is there a list of the numbers corresponding to different
machines available?

If people would like to try this on their own machines and mail me
the results I would be happy to compile the results and post it to 
the net.



-- 
Geoff Coleman                         | BITNET: Coleman@sask
College of Engineering                | UUCP: {utcsri,ihnp4}!sask!skul!geoff
University of Saskatchewan            | Compserve: 76515,1513  just a number 
Saskatoon, Saskatchewan               | voice: (306) 966-5415