Port class Null safety

An extension of Logic useful for Interface definitions.

Inheritance

Constructors

Port(String name, [int width = 1])
Constructs a Logic intended to be used for ports in an Interface.

Properties

bit → LogicValue
The current active value of this signal if it has width 1, as a LogicValue.
read-onlyinherited
changed → Stream<LogicValueChanged>
A Stream of LogicValueChanged events which triggers at most once per Simulator tick, iff the value of the Logic has changed.
read-onlyinherited
dstConnections → Iterable<Logic>
An Iterable of all Logics that are being directly driven by this.
read-onlyinherited
glitch → SynchronousEmitter<LogicValueChanged>
A stream of LogicValueChanged events for every time the signal transitions at any time during a Simulator tick.
read-onlyinherited
hashCode → int
The hash code for this object.
read-onlyinherited
isInput → bool
Returns true iff this signal is an input of its parent Module.
read-onlyinherited
isOutput → bool
Returns true iff this signal is an output of its parent Module.
read-onlyinherited
isPort → bool
Returns true iff this signal is an input or output of its parent Module.
read-onlyinherited
name → String
The name of this signal.
finalinherited
negedge → Stream<LogicValueChanged>
A Stream of LogicValueChanged events which triggers at most once per Simulator tick, iff the value of the Logic has changed from 1 to 0.
read-onlyinherited
nextChanged → Future<LogicValueChanged>
Triggers at most once, the next time that this Logic changes value at the end of a Simulator tick.
read-onlyinherited
nextNegedge → Future<LogicValueChanged>
Triggers at most once, the next time that this Logic changes value at the end of a Simulator tick from 1 to 0.
read-onlyinherited
nextPosedge → Future<LogicValueChanged>
Triggers at most once, the next time that this Logic changes value at the end of a Simulator tick from 0 to 1.
read-onlyinherited
parentModule ↔ Module?
The Module that this Logic exists within.
read / writeinherited
posedge → Stream<LogicValueChanged>
A Stream of LogicValueChanged events which triggers at most once per Simulator tick, iff the value of the Logic has changed from 0 to 1.
read-onlyinherited
reversed → Logic
Returns a version of this Logic with the bit order reversed.
read-onlyinherited
runtimeType → Type
A representation of the runtime type of the object.
read-onlyinherited
srcConnection → Logic?
The Logic signal that is driving this, if any.
read-onlyinherited
value → LogicValue
The current active value of this signal.
read-onlyinherited
valueBigInt → BigInt
The current valid active value of this signal as a BigInt.
read-onlyinherited
valueInt → int
The current valid active value of this signal as an int.
read-onlyinherited
width → int
The number of bits in this signal.
read-onlyinherited

Methods

and() → Logic
Unary AND.
inherited
decr([dynamic decrVal]) → ConditionalAssign
Shorthand for a Conditional which decrements this by decrVal
inherited
divAssign(dynamic divVal) → ConditionalAssign
Shorthand for a Conditional which increments this by divVal
inherited
eq(dynamic other) → Logic
Logical equality.
inherited
getRange(int startIndex, [int? endIndex]) → Logic
Returns a subset Logic. It is inclusive of startIndex, exclusive of endIndex.
inherited
gets(Logic other) → void
Connects this Logic directly to other.
inherited
hasValidValue() → bool
Returns true iff the value of this signal is valid (no x or z).
inherited
incr([dynamic incrVal]) → ConditionalAssign
Shorthand for a Conditional which increments this by incrVal
inherited
inject(dynamic val, {bool fill = false}) → void
Injects a value onto this signal in the current Simulator tick.
inherited
isFloating() → bool
Returns true iff all bits of the current value are floating (z).
inherited
isIn(List list) → Logic
Returns 1 (of width=1) if the Logic calling this function is in list. Else 0 (of width=1) if not present.
inherited
lt(dynamic other) → Logic
Less-than.
inherited
lte(dynamic other) → Logic
Less-than-or-equal-to.
inherited
makeUnassignable() → void
Makes it so that this signal cannot be assigned by any full (<=) or conditional (<) assignment.
inherited
mulAssign(dynamic mulVal) → ConditionalAssign
Shorthand for a Conditional which increments this by mulVal
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
inherited
or() → Logic
Unary OR.
inherited
put(dynamic val, {bool fill = false}) → void
Puts a value val onto this signal, which may or may not be picked up for changed in this Simulator tick.
inherited
replicate(int multiplier) → Logic
Returns a replicated signal using ReplicationOp with new width = this.width * multiplier The input multiplier cannot be negative or 0; an exception will be thrown, otherwise.
inherited
signExtend(int newWidth) → Logic
Returns a new Logic with width newWidth where new bits added are sign bits as the most significant bits. The sign is determined using two's complement, so it takes the most significant bit of the original signal and extends with that.
inherited
slice(int endIndex, int startIndex) → Logic
Accesses a subset of this signal from startIndex to endIndex, both inclusive.
inherited
toString() → String
A string representation of this object.
inherited
withSet(int startIndex, Logic update) → Logic
Returns a copy of this Logic with the bits starting from startIndex up until startIndex + update.width set to update instead of their original value.
inherited
xor() → Logic
Unary XOR.
inherited
zeroExtend(int newWidth) → Logic
Returns a new Logic with width newWidth where new bits added are zeros as the most significant bits.
inherited

Operators

operator %(dynamic other) → Logic
Modulo operation.
inherited
operator &(Logic other) → Logic
Logical bitwise AND.
inherited
operator *(dynamic other) → Logic
Multiplication.
inherited
operator +(dynamic other) → Logic
Addition.
inherited
operator -(dynamic other) → Logic
Subtraction.
inherited
operator /(dynamic other) → Logic
Division.
inherited
operator <(dynamic other) → ConditionalAssign
Conditional assignment operator.
inherited
operator <<(dynamic other) → Logic
Logical left-shift.
inherited
operator <=(Logic other) → void
Connects this Logic directly to another Logic.
inherited
operator ==(Object other) → bool
The equality operator.
inherited
operator >(dynamic other) → Logic
Greater-than.
inherited
operator >=(dynamic other) → Logic
Greater-than-or-equal-to.
inherited
operator >>(dynamic other) → Logic
Arithmetic right-shift.
inherited
operator >>>(dynamic other) → Logic
Logical right-shift.
inherited
operator [](dynamic index) → Logic
Accesses the indexth bit of this signal.
inherited
operator ^(Logic other) → Logic
Logical bitwise XOR.
inherited
operator |(Logic other) → Logic
Logical bitwise OR.
inherited
operator ~() → Logic
Logical bitwise NOT.
inherited