help with powerpc asm (moving grub_ieee1275_entry_fn initialization to crt0.S)

[Robert Millan]

Hi,

For the i386-ieee1275 port, I'd need to move grub_ieee1275_entry_fn
initialization in powerpc from cmain.c to crt0.S, so that code in cmain.c
can be shared with i386.

The problem is I have no clue about powerpc assembler.  On i386, this is
just done with a "movl %eax, EXT_C(grub_ieee1275_entry_fn)" but I don't know
the equivalent.  Furthermore, the code in crt0.S seems to be pushing arguments
(up to 3 according to cmain.c) in a loop, which got me really confused.

Anyone who is familiar with powerpc assembler could have a look?  See attached
patch.

-- 
Robert Millan

<GPLv2> I know my rights; I want my phone call!
<DRM> What use is a phone call, if you are unable to speak?
(as seen on /.)

grub_ieee1275_entry_fn.diff
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