Struct lc3_ensemble::sim::PSR

#[repr(transparent)]
pub struct PSR(pub u16);

A wrapper over u16 in order to faciliate the PSR.

The word is encoded as the following:

• PSR[15..16]: Privilege mode (0 = supervisor, 1 = user)
• PSR[8..11]: Interrupt priority
• PSR[0..3]: Condition codes

Each of these are exposed as the PSR::privileged, PSR::priority, and PSR::cc values.

Tuple Fields

0: u16

Implementations

impl PSR

pub fn new() -> Self

Creates a PSR with a default value.

pub fn privileged(&self) -> bool

Checks whether the simulator is in privileged mode.

• true = supervisor mode
• false = user mode

pub fn priority(&self) -> u8

Checks the current interrupt priority of the simulator.

pub fn cc(&self) -> u8

Checks the condition code of the simulator.

pub fn set_privileged(&mut self, privl: bool)

Sets whether the simulator is in privileged mode.

pub fn set_priority(&mut self, prio: u8)

Sets the current interrupt priority of the simulator.

pub fn set_cc(&mut self, cc: u8)

Sets the condition code of the simulator.

Trait Implementations

impl Debug for PSR

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

Formats the value using the given formatter.

impl Default for PSR

fn default() -> Self

Returns the “default value” for a type.