pub unsafe fn _fxsave(mem_addr: *mut u8)Available on (x86 or x86-64) and target feature
fxsr and x86 only.Expand description
Saves the x87 FPU, MMX technology, XMM, and MXCSR registers to the
512-byte-long 16-byte-aligned memory region mem_addr.
A misaligned destination operand raises a general-protection (#GP) or an alignment check exception (#AC).