Date: Mon, 24 Jan 2000 23:20:34 +0500 (MVT)
From: Prashant TR <prashant_tr AT yahoo DOT com>
To: Yong-Kwang Goh <ykgoh1 AT singnet DOT com DOT sg>
cc: djgpp AT delorie DOT com
Subject: Re: Saving CMOS to File
In-Reply-To: <Pine.LNX.4.10.10001242314490.552-100000@yahoo.com>
Message-ID: <Pine.LNX.4.10.10001242319490.708-100000@yahoo.com>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Reply-To: djgpp AT delorie DOT com
Errors-To: dj-admin AT delorie DOT com
X-Mailing-List: djgpp AT delorie DOT com
X-Unsubscribes-To: listserv AT delorie DOT com
Precedence: bulk

On Sun, 23 Jan 2000, Yong-Kwang Goh wrote:

> How do I save the contents of CMOS to file? In other word, how do I access
> the CMOS memory's contents?

outportb(0x70, ram address); // CMOS RAM address can be from 0 to 127.
inportb(0x71);// Gets you the byte at that address.

Doing outportb(0x71, value) will write to the CMOS RAM. Be careful while
doing this! Check the Ralf Brown's interrupt list for more details on
this.