Function core::arch::x86::_xsetbv [] [src]

pub unsafe fn _xsetbv(a: u32, val: u64)
🔬 This is a nightly-only experimental API. (stdsimd #48556)
This is supported on x86 and target feature xsave only.

Copy 64-bits from val to the extended control register (XCR) specified by a.

Currently only XFEATURE_ENABLED_MASK XCR is supported.