Enum Priv 

pub enum Priv {
    User,
    Supervisor,
    Machine,
}

Privilege level, held in one trit.

Three levels in one trit is the encoding a ternary machine gets for free. A binary machine spends two bits on three levels and leaves one combination meaning nothing.

Variants

User

Unprivileged. No control registers, no device addresses.

Supervisor

The operating system.

Machine

Firmware. Address translation does not apply.

Implementations

impl Priv

pub const fn trit(self) -> Trit

The trit encoding: user is -1, supervisor 0, machine +1.

pub const fn from_trit(t: Trit) -> Priv

The level a trit encodes.

pub const fn from_value(v: i64) -> Priv

The level a value encodes, saturating outside -1..=1.

Trait Implementations

impl Clone for Priv

fn clone(&self) -> Priv

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Priv

impl Debug for Priv

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

Formats the value using the given formatter.

impl Default for Priv

fn default() -> Priv

Returns the “default value” for a type.

impl Eq for Priv

impl Ord for Priv

fn cmp(&self, other: &Priv) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Priv

fn eq(&self, other: &Priv) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Priv

fn partial_cmp(&self, other: &Priv) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Priv