Developer Guide and Reference

Contents

_fxrstor()

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

Syntax

extern void _fxrstor(void *mem);
Arguments
mem
A memory reference to
FXSAVE
area. The 512-bytes memory addressed by the reference must be 16-bytes aligned.
Description
Restores the states of
x87 FPU
,
MMX
,
XMM
, and
MXCSR
registers from memory. This intrinsic maps to
FXRSTOR
instruction.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and