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SubjectRe: IA32 | [OFFTOPIC]: Segementation Question
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
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