MOV Reg64, [GS:Offset] Bug?

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shevmax

Joined: 22 Aug 2016
Posts: 2

shevmax 22 Aug 2016, 11:46

Hi! When compiling code:

Code:

USE64
mov rax, [gs:60h]

I received:

Code:

00000000002BF4CE | 65 48 8B 05 9A FF FF FF                 | mov rax,qword ptr gs:[2BF470]

This is equal of

Code:

mov rax, [gs:RIP-66h]

But I was expecting to receive (without use RIP)

Code:

 00000000002BF4D6 | 65 48 8B 04 25 60 00 00 00             | mov rax,qword ptr gs:[60]

It's Bug?

22 Aug 2016, 11:46

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 8351
Location: Kraków, Poland

Tomasz Grysztar 22 Aug 2016, 11:58

This is explained in the manual, and you can find that excerpt quoted in my response to a related discussion from 2007.

22 Aug 2016, 11:58

shevmax

Joined: 22 Aug 2016
Posts: 2

shevmax 22 Aug 2016, 12:27

Thanks!

22 Aug 2016, 12:27

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