net.mograsim.logic.core/src/net/mograsim/logic/core/components/CoreUnidirectionalSplitter.java

   1 package net.mograsim.logic.core.components;
   2
   3 import java.util.List;
   4
   5 import net.mograsim.logic.core.LogicObservable;
   6 import net.mograsim.logic.core.LogicObserver;
   7 import net.mograsim.logic.core.timeline.Timeline;
   8 import net.mograsim.logic.core.types.BitVector;
   9 import net.mograsim.logic.core.wires.CoreWire.ReadEnd;
  10 import net.mograsim.logic.core.wires.CoreWire.ReadWriteEnd;
  11
  12 public class CoreUnidirectionalSplitter extends CoreComponent implements LogicObserver
  13 {
  14         private ReadEnd input;
  15         private ReadWriteEnd[] outputs;
  16
  17         public CoreUnidirectionalSplitter(Timeline timeline, ReadEnd input, ReadWriteEnd... outputs)
  18         {
  19                 super(timeline);
  20                 this.input = input;
  21                 this.outputs = outputs;
  22                 input.registerObserver(this);
  23                 int width = 0;
  24                 for (ReadEnd out : outputs)
  25                         width += out.width();
  26
  27                 if (input.width() != width)
  28                         throw new IllegalArgumentException(
  29                                         "The input of splitting one into n WireArrays must have width = a1.width() + a2.width() + ... + an.width().");
  30         }
  31
  32         protected void compute()
  33         {
  34                 BitVector inputBits = input.getValues();
  35                 int startIndex = 0;
  36                 for (int i = 0; i < outputs.length; i++)
  37                 {
  38                         outputs[i].feedSignals(inputBits.subVector(startIndex, startIndex + outputs[i].width()));
  39                         startIndex += outputs[i].width();
  40                 }
  41         }
  42
  43         @Override
  44         public void update(LogicObservable initiator)
  45         {
  46                 compute();
  47         }
  48
  49         @Override
  50         public List<ReadEnd> getAllInputs()
  51         {
  52                 return List.of(input);
  53         }
  54
  55         @Override
  56         public List<ReadWriteEnd> getAllOutputs()
  57         {
  58                 return List.of(outputs);
  59         }
  60 }