Xref:	news-dnh.mv.net comp.os.msdos.djgpp:1582
Newsgroups:	comp.os.msdos.djgpp
Path:	news-dnh.mv.net!mv!news.sprintlink.net!EU.net!sun4nl!phcoms4.seri.philips.nl!newssvr!kunst
From:	kunst AT prl DOT philips DOT nl (Pieter Kunst)
Subject:	Re: BIOS data area
Sender:	news AT prl DOT philips DOT nl (USENET News System)
Organization:	Philips Research Laboratories, Eindhoven, The Netherlands
References:	<727 DOT 950815 DOT 131640 AT bbs DOT logicnet DOT com>
Date:	Wed, 16 Aug 1995 11:00:20 GMT
Lines:	18
To:	djgpp AT sun DOT soe DOT clarkson DOT edu
Dj-Gateway:	from newsgroup comp.os.msdos.djgpp

In article <727 DOT 950815 DOT 131640 AT bbs DOT logicnet DOT com> matt DOT emmett AT bbs DOT logicnet DOT com (Matt Emmett) writes:
>
>  i'm wondering to access the Bios data area, specifically the address
>at 40h:42h. anyhelp would be appreciated. thanx.
>

(1) You shouldn't mess with BIOS data directly. 
    Use some higher level API instead.

(2) If you really have to, use: 

      unisgned char bytevalue;  /* assuming it is a 8-bit value at 40:42 */

      dosmemget (0x442, sizeof(unsigned char), &bytevalue);
      dosmemput (&bytevalue, sizeof(unsigned char), 0x442);


Pieter.

- Raw text -