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chisel3.util.circt.dpi

RawUnclockedNonVoidFunctionCall

object RawUnclockedNonVoidFunctionCall

Source
DPI.scala
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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. def apply[T <: Data](functionName: String, ret: => T, inputNames: Option[Seq[String]] = None, outputName: Option[String] = None)(enable: Bool, data: Data*): T

    Creates an intrinsic that calls non-void DPI function for its input value changes.

    Creates an intrinsic that calls non-void DPI function for its input value changes. The DPI call is considered as a combinational logic.

    enable operand is used to conditionally call the DPI since DPI call could be quite more expensive than native constructs. When enable is false, results of unclocked calls are undefined and evaluated into X.

    Please refer https://github.com/llvm/circt/blob/main/docs/Dialects/FIRRTL/FIRRTLIntrinsics.md#dpi-intrinsic-abi for DPI function ABI.

    Example:
    1. val a = RawUnclockedNonVoidFunctionCall("dpi_func_foo", UInt(1.W))(enable, b, c)
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