Struct NullDevice 

pub struct NullDevice;

Does nothing.

Does not accept any reads nor writes and never interrupts.

Trait Implementations

impl Clone for NullDevice

fn clone(&self) -> NullDevice

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for NullDevice

impl Default for NullDevice

fn default() -> NullDevice

Returns the “default value” for a type.

impl Eq for NullDevice

impl ExternalDevice for NullDevice

fn io_read(&mut self, _addr: u16, _effectful: bool) -> Option<u16>

Reads the data at the given memory-mapped address.

fn io_write(&mut self, _addr: u16, _data: u16) -> bool

Writes the data to the given memory-mapped address.

fn io_reset(&mut self)

Resets device.

fn poll_interrupt(&mut self) -> Option<Interrupt>

During each instruction cycle, this function is called once to see whether to trigger an interrupt.

impl PartialEq for NullDevice

fn eq(&self, other: &NullDevice) -> 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 StructuralPartialEq for NullDevice