era.mi/src/era/mi/logic/components/gates/MultiInputGate.java

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