From:	Oon Lin <Oon DOT Lin AT jcu DOT edu DOT au>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: accessing ports
Date:	Wed, 03 Dec 1997 11:06:05 +1000
Organization:	University of Queensland
Lines:	24
Message-ID:	<3484B07D.41C6@jcu.edu.au>
References:	<3483c60d DOT 4107456 AT nntpserver DOT swip DOT net>
NNTP-Posting-Host:	cuda.jcu.edu.au
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Radon / Phrome wrote:
> 
> How do I access ports in DJGPP?
> In pascal, it is as simple as: port[$3d8h]:=0; for example.
> Is there an equal way to do it in djgpp?


use the outportb() or outportw() function. 

/* writes a byte into port */
void outportb(unsigned chort portid , unsigned char data) ;

/* writes 16 bit data into port */
void outportw(unsigned short portid  , unsigned short data);


Remember to include the line :

#include <pc.h>


Hope this helps !

Kean

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