Re: Trivial Change (E820map) : arch/i386/boot/setup.S

From: Alan Cox (
Date: Wed Jul 16 2003 - 13:18:10 EST

On Mer, 2003-07-16 at 18:33, Romit Dasgupta wrote:
> Hi,
> After reading the e820 method from Ralf Brown's interrupt list(
> it seems that the es register wont get thrashed. So there is no need to
> repatedly execute (for getting each map entry) the following two lines
> inside jmpe820: of seutp.S and thus can be moved out as below. Is there
> any reason to do it inside?

Yes - BIOSes and the specification are only distant relatives. We get
all sorts of fun from them - 0 sized regions, system ROM reported as
RAM, E801 returns in the wrong registers and so on

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