Struct x86_64::registers::control::Cr0

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pub struct Cr0;
Expand description

Various control flags modifying the basic operation of the CPU.

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impl Cr0

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pub fn read() -> Cr0Flags

Available on crate feature instructions only.

Read the current set of CR0 flags.

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pub fn read_raw() -> u64

Available on crate feature instructions only.

Read the current raw CR0 value.

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pub unsafe fn write(flags: Cr0Flags)

Available on crate feature instructions only.

Write CR0 flags.

Preserves the value of reserved fields.

§Safety

This function is unsafe because it’s possible to violate memory safety through it, e.g. by disabling paging.

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pub unsafe fn write_raw(value: u64)

Available on crate feature instructions only.

Write raw CR0 flags.

Does not preserve any values, including reserved fields.

§Safety

This function is unsafe because it’s possible to violate memory safety through it, e.g. by disabling paging.

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pub unsafe fn update<F>(f: F)
where F: FnOnce(&mut Cr0Flags),

Available on crate feature instructions only.

Updates CR0 flags.

Preserves the value of reserved fields.

§Safety

This function is unsafe because it’s possible to violate memory safety through it, e.g. by disabling paging.

Trait Implementations§

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impl Debug for Cr0

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl Freeze for Cr0

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impl RefUnwindSafe for Cr0

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impl Send for Cr0

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impl Sync for Cr0

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impl Unpin for Cr0

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impl UnwindSafe for Cr0

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.