era.mi/src/net/mograsim/logic/core/components/Splitter.java

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