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Index > Main > Stack Segment Descriptor: help to count LIMIT field...

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WallTearer



Joined: 23 Dec 2007
Posts: 2
WallTearer
Hey, I'm from Kiev(Ukraine), and I got some problems with counting Limit_1 and Limit_2 fields in Stack Segment Descriptor. You now, Segment Descriptors are used in Protected Mode.
Size of stack segment is 5MB.
Field Limit is easier to count in Data Segment Descriptor and Code Segment Descriptor...

I'he been searching a lot on the Internet, by didn't find the solution.
I'll appreciative any help =)
Post 23 Dec 2007, 19:51
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edfed



Joined: 20 Feb 2006
Posts: 4237
Location: 2018
edfed
[intel doc?]
expand down segment
used for stack???
expand up segment
used for the rest???
the type_segment bit is used to say the segment type
[/intel doc?]
Post 23 Dec 2007, 20:15
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vid
Verbosity in development


Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia
vid
errm... LSL instruction?

Quote:
Field Limit is easier to count in Data Segment Descriptor and Code Segment Descriptor...

how do you count it in these?
Post 23 Dec 2007, 20:40
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WallTearer



Joined: 23 Dec 2007
Posts: 2
WallTearer
vid wrote:
errm... LSL instruction?

Don't know what is it Embarassed

vid wrote:
how do you count it in these?

There're some rules... But with my knowledge of english I can't translate them, 'cause I got 'em in russian))
These rules are really strange for Stack Segment ((
Post 23 Dec 2007, 20:52
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vid
Verbosity in development


Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia
vid
Quote:
Don't know what is it

Well, grab Intel / AMD manual and study it. It does just what you need.
Post 23 Dec 2007, 22:04
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17248
Location: In your JS exploiting you and your system
revolution
Post 24 Dec 2007, 00:05
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edfed



Joined: 20 Feb 2006
Posts: 4237
Location: 2018
edfed
hehe
Post 24 Dec 2007, 00:07
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