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boot.S - source question

From: Martin Baute
Subject: boot.S - source question
Date: Tue, 2 Aug 2005 05:51:30 +0200
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Hi there,

I might prove my novice-ness with ASM coding by
asking this question, but...

...I read the grub2/boot/i386/pc/boot.S sources, and
one thing really has me wondering. Following the
control flow of it, assuming a LBA-capable hard
drive, brings me to:

        /* save the total number of sectors */
        movl    0x10(%si), %ecx

The thing is, unless I'm missing something, at this
point %si is pointing to the zero byte at the end
of notification_message... so where is %si set to
a reasonable value, which I have missed?

I just want to understand how the stage1 works...

Martin Baute

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