_xgetbv
Classification
Other, OS-Targeted, CPUID Test: XSAVE
Header File
Instruction
XGETBV
Synopsis
_xgetbv(unsigned int a);
Description
Copy up to 64-bits from the value of the extended control register (XCR) specified by "a" into "dst". Currently only XFEATURE_ENABLED_MASK XCR is supported.
Operation
dst[63:0] := XCR[a]