Struct ExtendedState 

pub struct ExtendedState { /* private fields */ }

Extended state of a task, such as FP/SIMD states.

On context switch the state is saved/restored with XSAVE/XRSTOR when the boot path enabled CR4.OSXSAVE (so that the AVX YMM upper halves are preserved), and falls back to FXSAVE/FXRSTOR otherwise.

Implementations

impl ExtendedState

pub fn fxsave_area(&self) -> &FxsaveArea

Available on crate feature fp-simd only.

Provides access to the legacy FXSAVE region for compatibility with code that inspects the x87/SSE state directly.

pub fn save(&mut self)

Available on crate feature fp-simd only.

Saves the current extended states from CPU to this structure.

pub fn restore(&self)

Available on crate feature fp-simd only.

Restores the extended states from this structure to CPU.

pub const fn default() -> Self

Available on crate feature fp-simd only.

Returns the extended state with initialized values.

Trait Implementations

impl Debug for ExtendedState

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.