_xrstor()

Restores the states of x87 FPU, MMX, XMM, YMM, and MXCSR registers from memory.

Syntax

extern void _xrstor(void *mem, unsigned __int64 rstor_mask);

Arguments

mem

A memory reference to FXSAVE area. The 512-bytes memory addressed by the reference must be 16-bytes aligned.

rstor_mask

A bit mask specifying the extended states to be restored.

Description

Restores the states of x87 FPU, MMX, XMM, YMM, and MXCSR registers from memory. This intrinsic maps to XRSTOR instruction.


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