[ros-bugs] [Bug 3772] InterlockedBitTestAndSet() bug

[ReactOS.Bugzilla at www.reactos.org]

http://www.reactos.org/bugzilla/show_bug.cgi?id=3772





--- Comment #8 from hto <hto at dev.null>  2008-11-21 21:59:07 CET ---
Hi,

> IIRC, "q" refers that the data must be in a register eax,ebx,ecx or edx.

Quite true, only these registers each have a 8-bit part on x86.

"r" means any general register, including esi and edi, which are not suitable
as an operand of setnz.

I bumped into this issue when compiling with gcc-4.4.0.


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