chisel33.5.3 < Back

Packages

package root
This is the documentation for Chisel.
This is the documentation for Chisel.
Package structure
The chisel3 package presents the public API of Chisel. It contains the concrete core types UInt, SInt, Bool, FixedPoint, Clock, and Reg, the abstract types Bits, Aggregate, and Data, and the aggregate types Bundle and Vec.
The Chisel package is a compatibility layer that attempts to provide chisel2 compatibility in chisel3.
Utility objects and methods are found in the util package.
The testers package defines the basic interface for chisel testers.
Definition Classes
root
package chisel3
Definition Classes
root
package util
The util package provides extensions to core chisel for common hardware components and utility functions
The util package provides extensions to core chisel for common hardware components and utility functions
Definition Classes
chisel3
package experimental
Definition Classes
util
package decode
Definition Classes
experimental
DecodeTableAnnotation
EspressoMinimizer
EspressoNotFoundException
Minimizer
QMCMinimizer
TruthTable
decoder

p

chisel3.util.experimental

decode

package decode

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Type Members

case class DecodeTableAnnotation(target: ReferenceTarget, truthTable: String, minimizedTable: String) extends SingleTargetAnnotation[ReferenceTarget] with Product with Serializable
DecodeTableAnnotation used to store a decode result for a specific TruthTable.
DecodeTableAnnotation used to store a decode result for a specific TruthTable. This is useful for saving large TruthTable during a elaboration time.
target
output wire of a decoder.
truthTable
input TruthTable encoded in a serialized TruthTable.
minimizedTable
minimized truthTable encoded in a serialized TruthTable.
Note
user should manage the correctness of minimizedTable.
abstract class Minimizer extends AnyRef
sealed class TruthTable extends AnyRef

Value Members

object EspressoMinimizer extends Minimizer with LazyLogging
A Minimizer implementation to use espresso to minimize the TruthTable.
A Minimizer implementation to use espresso to minimize the TruthTable.
espresso uses heuristic algorithm providing a sub-optimized) result. For implementation details, please refer to: https://www.springerprofessional.de/en/logic-minimization-algorithms-for-vlsi-synthesis/13780088
a espresso executable should be downloaded from https://github.com/chipsalliance/espresso
If user want to user the this Minimizer, a espresso executable should be added to system PATH environment.
case object EspressoNotFoundException extends Exception with Product with Serializable
object QMCMinimizer extends Minimizer
A Minimizer implementation to use Quine-Mccluskey algorithm to minimize the TruthTable.
A Minimizer implementation to use Quine-Mccluskey algorithm to minimize the TruthTable.
This algorithm can always find the best solution, but is a NP-Complete algorithm, which means, for large-scale TruthTable minimization task, it will be really slow, and might run out of memory of JVM stack.
In this situation, users should consider switch to EspressoMinimizer, which uses heuristic algorithm providing a sub-optimized result.
object TruthTable
object decoder extends LazyLogging

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