net.mograsim.logic.core/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.BitVector.BitVectorMutator;\r
   8 import net.mograsim.logic.core.types.MutationOperation;\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         protected boolean invert = false;\r
  19 \r
  20         protected MultiInputGate(Timeline timeline, int processTime, MutationOperation op, ReadWriteEnd out, ReadEnd... in)\r
  21         {\r
  22                 super(timeline, processTime);\r
  23                 this.op = op;\r
  24                 length = out.length();\r
  25                 this.in = in.clone();\r
  26                 if (in.length < 1)\r
  27                         throw new IllegalArgumentException(String.format("Cannot create gate with %d wires.", in.length));\r
  28                 for (ReadEnd w : in)\r
  29                 {\r
  30                         if (w.length() != length)\r
  31                                 throw new IllegalArgumentException("All wires connected to the gate must be of uniform length.");\r
  32                         w.registerObserver(this);\r
  33                 }\r
  34                 this.out = out;\r
  35         }\r
  36 \r
  37         protected MultiInputGate(Timeline timeline, int processTime, MutationOperation op, boolean invert, ReadWriteEnd out, ReadEnd... in)\r
  38         {\r
  39                 this(timeline, processTime, op, out, in);\r
  40                 this.invert = invert;\r
  41         }\r
  42 \r
  43         @Override\r
  44         public List<ReadEnd> getAllInputs()\r
  45         {\r
  46                 return List.of(in);\r
  47         }\r
  48 \r
  49         @Override\r
  50         public List<ReadWriteEnd> getAllOutputs()\r
  51         {\r
  52                 return List.of(out);\r
  53         }\r
  54 \r
  55         @Override\r
  56         protected void compute()\r
  57         {\r
  58                 BitVectorMutator mutator = BitVectorMutator.empty();\r
  59                 for (ReadEnd w : in)\r
  60                         op.apply(mutator, w.getValues());\r
  61                 out.feedSignals(invert ? mutator.get().not() : mutator.get());\r
  62         }\r
  63 }\r