On 12.05.2014 15:33, Michael Schnell wrote:
On 05/12/2014 02:47 PM, Reinier Olislagers wrote:
Do you mean direct access to the hardware bypassing the OS? I thought
that wasn't possible in Windows?
I don't know how the dynamic library call in Windows works.
If in doubt, take a look at ReactOS ;)
QueryPerformanceCounter calls NtQueryPerformanceCounter (which is a
system call), which in turn calls KeQueryPerformanceCounter (which is
implemented by the Hardware Abstraction Layer) which is defined here at
around line 250:
http://svn.reactos.org/svn/reactos/trunk/reactos/hal/halx86/generic/timer.c?revision=58489&view=markup
Regards,
Sven
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