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On 16.03.2012 10:12, Joachim Mammele wrote:
>         bits = 32;
>         outb(bits, 0x20A);
>         outw(-16832, 0x20C);
>         bits9 = inb(0x209);
>         return bits9; 
This code is easy to port to GRUB2. Just have a look at cmostest command 
to see what wrapping you need and replace in* with grub_in* and out* 
with grub_out*

-- 
Regards
Vladimir 'φ-coder/phcoder' Serbinenko