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Date: Thu, 02 Jun 2005 21:43:30 +0200
From: Matthias-Christian Ott <matthias.christian@tiscali.de>
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To: Grzegorz Kulewski <kangur@polcom.net>
CC: linux-kernel@vger.kernel.org
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