net.mograsim.logic.core/src/net/mograsim/logic/core/components/gates/MultiInputGate.java

   1 package net.mograsim.logic.core.components.gates;
   2
   3 import java.util.List;
   4
   5 import net.mograsim.logic.core.components.BasicComponent;
   6 import net.mograsim.logic.core.timeline.Timeline;
   7 import net.mograsim.logic.core.types.BitVector.BitVectorMutator;
   8 import net.mograsim.logic.core.types.MutationOperation;
   9 import net.mograsim.logic.core.wires.Wire.ReadEnd;
  10 import net.mograsim.logic.core.wires.Wire.ReadWriteEnd;
  11
  12 public abstract class MultiInputGate extends BasicComponent
  13 {
  14         protected ReadEnd[] in;
  15         protected ReadWriteEnd out;
  16         protected final int length;
  17         protected MutationOperation op;
  18
  19         protected MultiInputGate(Timeline timeline, int processTime, MutationOperation op, ReadWriteEnd out, ReadEnd... in)
  20         {
  21                 super(timeline, processTime);
  22                 this.op = op;
  23                 length = out.length();
  24                 this.in = in.clone();
  25                 if (in.length < 1)
  26                         throw new IllegalArgumentException(String.format("Cannot create gate with %d wires.", in.length));
  27                 for (ReadEnd w : in)
  28                 {
  29                         if (w.length() != length)
  30                                 throw new IllegalArgumentException("All wires connected to the gate must be of uniform length.");
  31                         w.registerObserver(this);
  32                 }
  33                 this.out = out;
  34         }
  35
  36         @Override
  37         public List<ReadEnd> getAllInputs()
  38         {
  39                 return List.of(in);
  40         }
  41
  42         @Override
  43         public List<ReadWriteEnd> getAllOutputs()
  44         {
  45                 return List.of(out);
  46         }
  47
  48         @Override
  49         protected void compute()
  50         {
  51                 BitVectorMutator mutator = BitVectorMutator.empty();
  52                 for (ReadEnd w : in)
  53                         op.apply(mutator, w.getValues());
  54                 out.feedSignals(mutator.get());
  55         }
  56 }