Messages in this thread | | | Date | Thu, 02 Jun 2005 21:43:30 +0200 | From | Matthias-Christian Ott <> | Subject | Re: IA32 | [OFFTOPIC]: Segementation Question |
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Grzegorz Kulewski wrote: > On Thu, 2 Jun 2005, Matthias-Christian Ott wrote: > >> Hi. >> I'm currently doing some research on the IA32 Segementation Concept. >> But there's one thing I don't understand: >> If I perform a far jump it looks like this: >> jmp 16bit:32bit >> >> The 16bit are representing the segement number and the 32bit the >> offset. But to what refers the 16bit? To the GDT or the current LDT? > > > IIRC, there is one bit flag in selector that decides if it is from GDT > or LDT. But maybe I am wrong... > > > Grzegorz Kulewski > Ok, you're right, I read over this (see IA-32 Manual Part 3, Page 81).
-- Matthias-Christian Ott - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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