Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!rutgers!sri-spam!ames!ptsfa!ihnp4!alberta!sask!coleman 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