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

   1 package net.mograsim.logic.core.components.gates;
   2
   3 import java.util.List;
   4
   5 import net.mograsim.logic.core.components.BasicCoreComponent;
   6 import net.mograsim.logic.core.timeline.Timeline;
   7 import net.mograsim.logic.core.timeline.TimelineEventHandler;
   8 import net.mograsim.logic.core.types.BitVector.BitVectorMutator;
   9 import net.mograsim.logic.core.types.MutationOperation;
  10 import net.mograsim.logic.core.wires.CoreWire.ReadEnd;
  11 import net.mograsim.logic.core.wires.CoreWire.ReadWriteEnd;
  12
  13 public abstract class MultiInputCoreGate extends BasicCoreComponent
  14 {
  15         protected ReadEnd[] in;
  16         protected ReadWriteEnd out;
  17         protected final int width;
  18         protected MutationOperation op;
  19         protected boolean invert = false;
  20
  21         protected MultiInputCoreGate(Timeline timeline, int processTime, MutationOperation op, ReadWriteEnd out, ReadEnd... in)
  22         {
  23                 super(timeline, processTime);
  24                 this.op = op;
  25                 width = out.width();
  26                 this.in = in.clone();
  27                 if (in.length < 1)
  28                         throw new IllegalArgumentException(String.format("Cannot create gate with %d wires.", in.length));
  29                 for (ReadEnd w : in)
  30                 {
  31                         if (w.width() != width)
  32                                 throw new IllegalArgumentException("All wires connected to the gate must be of uniform length.");
  33                         w.registerObserver(this);
  34                 }
  35                 this.out = out;
  36         }
  37
  38         protected MultiInputCoreGate(Timeline timeline, int processTime, MutationOperation op, boolean invert, ReadWriteEnd out, ReadEnd... in)
  39         {
  40                 this(timeline, processTime, op, out, in);
  41                 this.invert = invert;
  42         }
  43
  44         @Override
  45         public List<ReadEnd> getAllInputs()
  46         {
  47                 return List.of(in);
  48         }
  49
  50         @Override
  51         public List<ReadWriteEnd> getAllOutputs()
  52         {
  53                 return List.of(out);
  54         }
  55
  56         @Override
  57         public TimelineEventHandler compute()
  58         {
  59                 BitVectorMutator mutator = BitVectorMutator.empty();
  60                 for (ReadEnd w : in)
  61                         op.apply(mutator, w.getValues());
  62                 return e -> out.feedSignals(invert ? mutator.toBitVector().not() : mutator.toBitVector());
  63         }
  64 }