[fb-d] Re: [OpenBIOS] Mixing 16 and 32 bits code
james at tbp.berkeley.edu
Fri May 19 14:31:02 CEST 2000
> On Wed, 17 May 2000, Ollie Lho wrote:
> > .byte 0x66 /* prefix */
> > .byte 0x26
> > .byte 0x0f, 0x01, 0x16 /* lgdt [es:offset]*/
> > .word 0x02 /* offset in segment */
> Hmm, why would you encode lgdt manually? I can't recall gas handling it
> incorrectly and even if it did it would be gas that would need fixing.
> AFAIR, the "lgdtl %es:2" instruction yields exactly the same bytes as you
> emit explicitly above.
As I remember we wanted it and a jump to fit in an exact space at FFF0 or
something like that. Ron can tell us better Monday (LANL is closed for a
few days because of fire).
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