Intel® C++ Compiler 16.0 User and Reference Guide
Saves the states of x87 FPU, MMX, XMM, and MXCSR registers to memory.
extern void _fxsave(void *mem); |
A memory reference to FXSAVE area. The 512-bytes memory addressed by the reference must be 16-bytes aligned.
Saves the states of x87 FPU, MMX, XMM, and MXCSR registers to memory. This intrinsic maps to FXSAVE instruction.