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sealed abstract class Printable extends AnyRef

Superclass of things that can be printed in the resulting circuit

Usually created using the custom string interpolator p"...". Printable string interpolation is similar to String interpolation in Scala For example:

printf(p"The value of wire = $wire\n")

This is equivalent to writing:

printf(p"The value of wire = %d\n", wire)

All Chisel data types have a method .toPrintable that gives a default pretty print that can be accessed via p"...". This works even for aggregate types, for example:

val myVec = VecInit(5.U, 10.U, 13.U)
printf(p"myVec = $myVec\n")
// myVec = Vec(5, 10, 13)

val myBundle = Wire(new Bundle {
  val foo = UInt()
  val bar = UInt()
})
myBundle.foo := 3.U
myBundle.bar := 11.U
printf(p"myBundle = $myBundle\n")
// myBundle = Bundle(a -> 3, b -> 11)

Users can override the default behavior of .toPrintable in custom Bundle and Record types.

Source
Printable.scala
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Abstract Value Members

  1. abstract def unpack(ctx: Component): (String, Iterable[String])

    Unpack into format String and a List of String arguments (identifiers)

    Unpack into format String and a List of String arguments (identifiers)

    Note

    This must be called after elaboration when Chisel nodes actually have names

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def +(that: String): Printables

    Allow for appending Strings to Printables

  4. final def +(that: Printable): Printables

    Allow for appending Printables like Strings

  5. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  6. final def asInstanceOf[T0]: T0
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    Any
  7. def clone(): AnyRef
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    protected[lang]
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    @throws( ... ) @native()
  8. final def eq(arg0: AnyRef): Boolean
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  9. def equals(arg0: Any): Boolean
    Definition Classes
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  10. def finalize(): Unit
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    protected[lang]
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    @throws( classOf[java.lang.Throwable] )
  11. final def getClass(): Class[_]
    Definition Classes
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    Annotations
    @native()
  12. def hashCode(): Int
    Definition Classes
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    @native()
  13. final def isInstanceOf[T0]: Boolean
    Definition Classes
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  14. final def ne(arg0: AnyRef): Boolean
    Definition Classes
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  15. final def notify(): Unit
    Definition Classes
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    @native()
  16. final def notifyAll(): Unit
    Definition Classes
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    @native()
  17. final def synchronized[T0](arg0: ⇒ T0): T0
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  18. def toString(): String
    Definition Classes
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  19. final def wait(): Unit
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    @throws( ... )
  20. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
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    @throws( ... )
  21. final def wait(arg0: Long): Unit
    Definition Classes
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