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By piccoloprincipe
via blogs.msdn.com
Submitted: May 04 2013 / 05:30

A customer using Visual Studio wanted to know how to obtain the current value of the x64 RSP register from a C/C++ function. They noted that on the x86, you can drop to inline assembly, and on the ia64, you can use the __getReg intrinsic to retrieve the value of any register. There is no corresponding __getReg intrinsic on x64.
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