__rdtscp
Classification
Other, General Support, CPUID Test: RDTSCP
Header File
Instruction
RDTSCP
Synopsis
__rdtscp(unsigned int * mem_addr);
Description
Copy the current 64-bit value of the processor's time-stamp counter into "dst", and store the IA32_TSC_AUX MSR (signature value) into memory at "mem_addr".
Operation
dst[63:0] := TimeStampCounter
MEM[mem_addr+31:mem_addr] := IA32_TSC_AUX[31:0]