Float8ToFixed class

Float8ToFixed converts an 8-bit floating point (FP8) input to a signed fixed-point output following Q notation (Qm.n) as introduced by (Texas Instruments)https://www.ti.com/lit/ug/spru565b/spru565b.pdf. FP8 input must follow E4M3 or E5M2 as described in (FP8 formats for deep learning)https://arxiv.org/pdf/2209.05433. This component offers re-using the same hardware for both FP8 formats. Infinities and NaN's are not supported. The output is of type Logic and in two's complement. It can be cast to a FixedPoint by the consumer based on the mode. if mode is true: Input is treated as E4M3 and converted to Q9.9 fixed[17:9] contains integer part fixed8:0 contains fractional part else: Input is treated as E5M2 and converted to Q16.16 fixed[31:16] contains integer part fixed15:0 contains fractional part

Inheritance

Constructors

Float8ToFixed(Logic float, Logic mode, {String name = 'Float8ToFixed'})
Constructor

Properties

definitionName → String
The definition name of this Module used when instantiating instances in generated code.
no setterinherited
fixed → Logic
Output port fixed
no setter
hasBuilt → bool
Indicates whether this Module has had the build method called on it.
no setterinherited
hashCode → int
The hash code for this object.
no setterinherited
inputs → Map<String, Logic>
A map from input port names to this Module to corresponding Logic signals.
no setterinherited
internalSignals → Iterable<Logic>
An Iterable of all Logics contained within this Module which are not an input or output port of this Module.
no setterinherited
name → String
The name of this Module.
finalinherited
outputs → Map<String, Logic>
A map from output port names to this Module to corresponding Logic signals.
no setterinherited
parent → Module?
The parent Module of this Module.
no setterinherited
q16p16 → FixedPoint
Getter for Q16.16
no setter
q23p9 → FixedPoint
Getter for Q23.9
no setter
reserveDefinitionName → bool
If true, guarantees definitionName is maintained by a Synthesizer, or else it will fail.
finalinherited
reserveName → bool
If true, guarantees uniqueInstanceName matches name or else the build will fail.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
signals → Iterable<Logic>
An Iterable of all Logics contained within this Module, including inputs, outputs, and internal signals of this Module.
no setterinherited
subModules → Iterable<Module>
An Iterable of all Modules contained within this Module.
no setterinherited
uniqueInstanceName → String
If this module has a parent, after build this will be a guaranteed unique name within its scope.
no setterinherited

Methods

addInput(String name, Logic x, {int width = 1}) → Logic
Registers a signal as an input to this Module and returns an input port that can be consumed.
inherited
addInputArray(String name, Logic x, {List<int> dimensions = const [1], int elementWidth = 1, int numUnpackedDimensions = 0}) → LogicArray
Registers and returns an input LogicArray port to this Module with the specified dimensions, elementWidth, and numUnpackedDimensions named name.
inherited
addOutput(String name, {int width = 1}) → Logic
Registers an output to this Module and returns an output port that can be driven.
inherited
addOutputArray(String name, {List<int> dimensions = const [1], int elementWidth = 1, int numUnpackedDimensions = 0}) → LogicArray
Registers and returns an output LogicArray port to this Module with the specified dimensions, elementWidth, and numUnpackedDimensions named name.
inherited
build() → Future<void>
Builds the Module and all subModules within it.
inherited
generateSynth() → String
Returns a synthesized version of this Module.
inherited
hierarchy() → Iterable<Module>
Returns an Iterable of Modules representing the hierarchical path to this Module.
inherited
hierarchyString([int indent = 0]) → String
Returns a pretty-print String of the heirarchy of all Modules within this Module.
inherited
input(String name) → Logic
Accesses the Logic associated with this Modules input port named name.
inherited
isInput(Logic net) → bool
Returns true iff net is the same Logic as the input port of this Module with the same name.
inherited
isOutput(Logic net) → bool
Returns true iff net is the same Logic as the output port of this Module with the same name.
inherited
isPort(Logic net) → bool
Returns true iff net is the same Logic as an input or output port of this Module with the same name.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
output(String name) → Logic
Accesses the Logic associated with this Modules output port named name.
inherited
toString() → String
A string representation of this object.
inherited
tryInput(String name) → Logic?
Provides the input named name if it exists, otherwise null.
inherited
tryOutput(String name) → Logic?
Provides the output named name if it exists, otherwise null.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited