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From: johnson@noscvax.UUCP (Timothy A. Johnson)
Newsgroups: net.micro.pc
Subject: Re: HELP: need MS-DOS interrupt params.
Message-ID: <119@noscvax.UUCP>
Date: Thu, 21-Nov-85 19:32:42 EST
Article-I.D.: noscvax.119
Posted: Thu Nov 21 19:32:42 1985
Date-Received: Mon, 25-Nov-85 07:32:35 EST
References: <10300008@uiucuxa>
Organization: Naval Ocean Systems Center, San Diego
Lines: 18

> 
> I want to use an MS-DOS call to send a character to the listing device
> (LST, normally a serial or parallel printer), which I believe is MS-DOS
> interrupt 5.  But I can't find the necessary parameters.  Can someone
> please tell me what parameters are needed for this call?
> 
> (I believe the info is in the MS-DOS tech reference manual, but I don't
> have one on hand.)  Thanks much.
> 
> Aaron Contorer 
> amc543@uiucuxa

According to Norton's "Programmer's Guide to the IBM PC", DOS function
5 (from int 21H) will output one byte from register DL to the standard
print device. 

Timothy A. Johnson
Computer Sciences Corporation