How do I get the current value of the RSP register from a C/C++ function? (No answer, but a solution.)

Raymond ChenMay 1, 2013May 1, 201305/1/13

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. There's no ...