Apb3Decoder.scala

object Apb3Decoder{

  def getOutputConfig(inputConfig: Apb3Config, decodings: Seq[SizeMapping]) = inputConfig.copy(selWidth = decodings.size)

  def apply(inputConfig: Apb3Config, decodings: Seq[SizeMapping]): Apb3Decoder = new Apb3Decoder(inputConfig, decodings)

  def apply(master: Apb3, slaves: Seq[(Apb3, SizeMapping)]): Apb3Decoder = {

    // proposal
    for(slave <- slaves)
    {
      assert(master.config.addressWidth > slave._1.config.addressWidth,f"Mapping at 0x${slave._2.base}%x has an address width bigger than the decoder can allow")
    }
    //======
    
    val decoder = new Apb3Decoder(master.config, slaves.map(_._2))
    val router  = new Apb3Router(decoder.io.output.config)

    decoder.io.input <> master
    router.io.input  <> decoder.io.output

    (slaves.map(_._1), router.io.outputs).zipped.map(_ << _)

    decoder.setPartialName(master, "decoder")
  }
}