Renamed project to MoGraSim

[Mograsim.git] / era.mi / src / mograsim / logic / core / components / Splitter.java

diff --git a/era.mi/src/mograsim/logic/core/components/Splitter.java b/era.mi/src/mograsim/logic/core/components/Splitter.java
new file mode 100644 (file)
index 0000000..3474952
--- /dev/null
+++ b/era.mi/src/mograsim/logic/core/components/Splitter.java
@@ -0,0 +1,59 @@
+package mograsim.logic.core.components;
+
+import java.util.List;
+
+import mograsim.logic.core.timeline.Timeline;
+import mograsim.logic.core.types.BitVector;
+import mograsim.logic.core.wires.WireObserver;
+import mograsim.logic.core.wires.Wire.ReadEnd;
+import mograsim.logic.core.wires.Wire.ReadWriteEnd;
+
+public class Splitter extends Component implements WireObserver
+{
+       private ReadEnd input;
+       private ReadWriteEnd[] outputs;
+
+       public Splitter(Timeline timeline, ReadEnd input, ReadWriteEnd... outputs)
+       {
+               super(timeline);
+               this.input = input;
+               this.outputs = outputs;
+               input.addObserver(this);
+               int length = 0;
+               for (ReadEnd out : outputs)
+                       length += out.length();
+
+               if (input.length() != length)
+                       throw new IllegalArgumentException(
+                                       "The input of splitting one into n WireArrays must have length = a1.length() + a2.length() + ... + an.length().");
+       }
+
+       protected void compute()
+       {
+               BitVector inputBits = input.getValues();
+               int startIndex = 0;
+               for (int i = 0; i < outputs.length; i++)
+               {
+                       outputs[i].feedSignals(inputBits.subVector(startIndex, startIndex + outputs[i].length()));
+                       startIndex += outputs[i].length();
+               }
+       }
+
+       @Override
+       public void update(ReadEnd initiator, BitVector oldValues)
+       {
+               compute();
+       }
+
+       @Override
+       public List<ReadEnd> getAllInputs()
+       {
+               return List.of(input);
+       }
+
+       @Override
+       public List<ReadWriteEnd> getAllOutputs()
+       {
+               return List.of(outputs);
+       }
+}