era.mi/src/era/mi/logic/components/Splitter.java

   1 package era.mi.logic.components;\r
   2 \r
   3 import java.util.List;\r
   4 \r
   5 import era.mi.logic.types.BitVector;\r
   6 import era.mi.logic.wires.Wire.ReadEnd;\r
   7 import era.mi.logic.wires.Wire.ReadWriteEnd;\r
   8 import era.mi.logic.wires.WireObserver;\r
   9 \r
  10 public class Splitter implements WireObserver, Component\r
  11 {\r
  12         private ReadEnd input;\r
  13         private ReadWriteEnd[] outputs;\r
  14 \r
  15         public Splitter(ReadEnd input, ReadWriteEnd... outputs)\r
  16         {\r
  17                 this.input = input;\r
  18                 this.outputs = outputs;\r
  19                 input.addObserver(this);\r
  20                 int length = 0;\r
  21                 for (ReadEnd out : outputs)\r
  22                         length += out.length();\r
  23 \r
  24                 if (input.length() != length)\r
  25                         throw new IllegalArgumentException(\r
  26                                         "The input of splitting one into n WireArrays must have length = a1.length() + a2.length() + ... + an.length().");\r
  27         }\r
  28 \r
  29         protected void compute()\r
  30         {\r
  31                 BitVector inputBits = input.getValues();\r
  32                 int startIndex = 0;\r
  33                 for (int i = 0; i < outputs.length; i++)\r
  34                 {\r
  35                         outputs[i].feedSignals(inputBits.subVector(startIndex, startIndex + outputs[i].length()));\r
  36                         startIndex += outputs[i].length();\r
  37                 }\r
  38         }\r
  39 \r
  40         @Override\r
  41         public void update(ReadEnd initiator, BitVector oldValues)\r
  42         {\r
  43                 compute();\r
  44         }\r
  45 \r
  46         @Override\r
  47         public List<ReadEnd> getAllInputs()\r
  48         {\r
  49                 return List.of(input);\r
  50         }\r
  51 \r
  52         @Override\r
  53         public List<ReadWriteEnd> getAllOutputs()\r
  54         {\r
  55                 return List.of(outputs);\r
  56         }\r
  57 }\r