Intel® C++ Compiler Classic Developer Guide and Reference
A newer version of this document is available. Customers should click here to go to the newest version.
Visible to Intel only — GUID: GUID-5FFE0D02-D08A-458B-9E76-8A0F791313D0
Visible to Intel only — GUID: GUID-5FFE0D02-D08A-458B-9E76-8A0F791313D0
_fxsave()
Saves the states of x87 FPU, MMX, XMM, and MXCSR registers to memory.
Syntax
extern void _fxsave(void *mem); |
Arguments
- mem
-
A memory reference to FXSAVE area. The 512-bytes memory addressed by the reference must be 16-bytes aligned.
Description
Saves the states of x87 FPU, MMX, XMM, and MXCSR registers to memory. This intrinsic maps to FXSAVE instruction.