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

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