Messages in this thread | | | From | "Peter T. Breuer" <> | Subject | Re: Booting big kernels on IBM ThinkPad 770X | Date | Wed, 2 Dec 1998 22:24:20 +0100 (MET) |
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"A month of sundays ago Christian Lademann wrote:" > > I inserted a call to the following routine in setup.S just before setting A20 > and now my bzImage boots!
Where? The only place I see that fits your description is somewhere that a ret would hurt.
> ! > ! enables a20-handling on ThinkPads while in real mode > ! > ThinkPad_SCP_A: > in al,#0x92 ! read "System Control Port A" > or al,#0x02 ! Set "Alternate Gate A20" - Bit > out #0x92,al ! write "System Control Port A" > ret
> Now, I'm not an assembler programmer at all. Maybe someone could take a closer > look into that.
Neither am I, and it looks fine, apart from the ret.
> Christian Lademann. <cal@zls.de> > > PS. Please forward answers to the list to me as well.
Which list did this come to me on ... ?
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
ah.
Peter
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