Function core::arch::x86::_fxrstor

1.27.0 · source · [−]
pub unsafe fn _fxrstor(mem_addr: *const u8)
This is supported on x86 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).

See FXSAVE and FXRSTOR.

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