> > I wonder if there a way to check that we are realy in real mode ?
> 
> Yes.  In real mode bit 0 of the cr0 register should be 0.

It is not as simple. There's stuff like "unreal" mode... real mode
with 4GB descriptor limits... and similar crazyness.
                                                                        Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) 
http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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