o

chisel3.util

PopCount

object PopCount

Returns the number of bits set (value is 1 or true) in the input signal.

Source
Bitwise.scala
Example:

  1. PopCount(Seq(true.B, false.B, true.B, true.B))  // evaluates to 3.U
PopCount(Seq(false.B, false.B, true.B, false.B))  // evaluates to 1.U

PopCount("b1011".U)  // evaluates to 3.U
PopCount("b0010".U)  // evaluates to 1.U
PopCount(myUIntWire)  // dynamic count
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  1. final def !=(arg0: Any): Boolean
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  2. final def ##: Int
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  3. final def ==(arg0: Any): Boolean
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  4. macro def apply(in: Bits): UInt
  5. macro def apply(in: Iterable[Bool]): UInt
  6. final def asInstanceOf[T0]: T0
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  7. def clone(): AnyRef
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  8. def do_apply(in: Bits)(implicit sourceInfo: SourceInfo): UInt

  9. def do_apply(in: Iterable[Bool])(implicit sourceInfo: SourceInfo): UInt

  10. final def eq(arg0: AnyRef): Boolean
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  12. def finalize(): Unit
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  16. final def ne(arg0: AnyRef): Boolean
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  21. final def wait(): Unit
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  22. final def wait(arg0: Long, arg1: Int): Unit
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  23. final def wait(arg0: Long): Unit
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