Function core::arch::x86_64::_fxrstor64
1.27.0 · source · pub unsafe fn _fxrstor64(mem_addr: *const u8)
Available on x86-64 and target feature
fxsr
only.Expand description
Restores the XMM
, MMX
, MXCSR
, and x87
FPU registers from the
512-byte-long 16-byte-aligned memory region mem_addr
.
The contents of this memory region should have been written to by a
previous
_fxsave
or _fxsave64
intrinsic.
A misaligned destination operand raises a general-protection (#GP) or an alignment check exception (#AC).