_fxrstor64
Classification
Other, OS-Targeted, CPUID Test: FXSR
Header File
immintrin.h
Instruction
FXRSTOR64 m512
Synopsis
 _fxrstor64(void * mem_addr);
Description
Reload the x87 FPU, MMX technology, XMM, and MXCSR registers from the 512-byte memory image at "mem_addr". This data should have been written to memory previously using the FXSAVE64 instruction, and in the same format as required by the operating mode. "mem_addr" must be aligned on a 16-byte boundary.
Operation
state_x87_fpu_mmx_sse := fxrstor64(MEM[mem_addr+512*8:mem_addr])