Struct NullDevice 

pub struct NullDevice<T>(/* private fields */);

A daisy-chain terminator device. Use it as the last device in a chain.

Substitute T with a timestamp type.

Trait Implementations

impl<T> BusDevice for NullDevice<T>

type Timestamp = T

A type used as a time-stamp.

type NextDevice = NullDevice<T>

A type of the next device in a daisy chain.

fn next_device_mut(&mut self) -> &mut Self::NextDevice

Returns a mutable reference to the next device.

fn next_device_ref(&self) -> &Self::NextDevice

Returns a reference to the next device.

fn into_next_device(self) -> Self::NextDevice

Destructs self and returns the instance of the next bus device.

fn reset(&mut self, _timestamp: Self::Timestamp)

Resets the device and all devices in this chain.

fn update_timestamp(&mut self, _timestamp: Self::Timestamp)

This method should be called near the end of each frame.

fn next_frame(&mut self, _timestamp: Self::Timestamp)

This method should be called just before the T-state counter of the control unit is wrapped when preparing for the next frame.

fn read_io( &mut self, _port: u16, _timestamp: Self::Timestamp, ) -> Option<(u8, Option<NonZeroU16>)>

This method is called by the control unit during an I/O read cycle.

fn write_io( &mut self, _port: u16, _data: u8, _timestamp: Self::Timestamp, ) -> Option<u16>

This method is called by the control unit during an I/O write cycle.

fn type_id(&self) -> TypeId

where Self: 'static,

Gets the TypeId of self.

impl<T: Clone> Clone for NullDevice<T>

fn clone(&self) -> NullDevice<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T> Debug for NullDevice<T>

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

Formats the value using the given formatter.

impl<T> Default for NullDevice<T>

fn default() -> Self

Returns the “default value” for a type.

impl<'de, T> Deserialize<'de> for NullDevice<T>

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<T> Display for NullDevice<T>

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

Formats the value using the given formatter.

impl<T: PartialEq> PartialEq for NullDevice<T>

fn eq(&self, other: &NullDevice<T>) -> 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<T> Serialize for NullDevice<T>

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<T: Eq> Eq for NullDevice<T>

impl<T> StructuralPartialEq for NullDevice<T>