Merged logic into master

[Mograsim.git] / era.mi / src / era / mi / logic / components / gates / MultiInputGate.java

diff --git a/era.mi/src/era/mi/logic/components/gates/MultiInputGate.java b/era.mi/src/era/mi/logic/components/gates/MultiInputGate.java
new file mode 100644 (file)
index 0000000..0b4a5d0
--- /dev/null
+++ b/era.mi/src/era/mi/logic/components/gates/MultiInputGate.java
@@ -0,0 +1,54 @@
+package era.mi.logic.components.gates;
+
+import java.util.List;
+
+import era.mi.logic.components.BasicComponent;
+import era.mi.logic.types.BitVector.BitVectorMutator;
+import era.mi.logic.types.MutationOperation;
+import era.mi.logic.wires.Wire.WireEnd;
+
+public abstract class MultiInputGate extends BasicComponent
+{
+       protected WireEnd[] in;
+       protected WireEnd out;
+       protected final int length;
+       protected MutationOperation op;
+
+       protected MultiInputGate(int processTime, MutationOperation op, WireEnd out, WireEnd... in)
+       {
+               super(processTime);
+               this.op = op;
+               length = out.length();
+               this.in = in.clone();
+               if (in.length < 1)
+                       throw new IllegalArgumentException(String.format("Cannot create gate with %d wires.", in.length));
+               for (WireEnd w : in)
+               {
+                       if (w.length() != length)
+                               throw new IllegalArgumentException("All wires connected to the gate must be of uniform length.");
+                       w.addObserver(this);
+               }
+               this.out = out;
+       }
+
+       @Override
+       public List<WireEnd> getAllInputs()
+       {
+               return List.of(in);
+       }
+
+       @Override
+       public List<WireEnd> getAllOutputs()
+       {
+               return List.of(out);
+       }
+
+       @Override
+       protected void compute()
+       {
+               BitVectorMutator mutator = BitVectorMutator.empty();
+               for (WireEnd w : in)
+                       op.apply(mutator, w.getValues());
+               out.feedSignals(mutator.get());
+       }
+}