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From: S-n-e-a-k-e-r@gmx.net
To: linux-kernel@vger.kernel.org
Subject: int 0x15, ah=0x88 question
Date: Mon, 19 May 2003 12:22:07 +0200 (MEST)	[thread overview]
Message-ID: <9188.1053339727@www54.gmx.net> (raw)

Hi all,

Following code comes from arch/i386/boot/setup.S (memory detection):

387         movb    $0x88, %ah
388         int     $0x15
389         movw    %ax, (2)

Why memory address 2 is used? Where else in the kernel is it used? We are in
real mode, so (2) should be the same as %ds:(2), or not?

Sorry that I'm bugging the mailing list with that question but I didn't
found the answer anywhere. So a web page, a book or something else would be also
nice as an answer.

Regards,

Andy

Ps: please cc me!

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             reply	other threads:[~2003-05-19 10:09 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-05-19 10:22 S-n-e-a-k-e-r [this message]
2003-05-19 13:08 ` Dave Jones

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