plugins/net.mograsim.machine/src/net/mograsim/machine/mi/AssignableMicroInstructionMemory.java

   1 package net.mograsim.machine.mi;
   2
   3 import java.util.HashSet;
   4 import java.util.Set;
   5
   6 import net.mograsim.machine.MemoryObserver;
   7
   8 public class AssignableMicroInstructionMemory implements MicroInstructionMemory, MemoryObserver
   9 {
  10         private Set<MemoryObserver> observers = new HashSet<>();
  11         MicroInstructionMemory real = null;
  12
  13         public AssignableMicroInstructionMemory(StandardMicroInstructionMemory standardMicroInstructionMemory)
  14         {
  15                 real = standardMicroInstructionMemory;
  16                 real.registerObserver(this);
  17         }
  18
  19         public void bind(MicroInstructionMemory real)
  20         {
  21                 this.real.deregisterObserver(this);
  22                 this.real = real;
  23                 real.registerObserver(this);
  24         }
  25
  26         @Override
  27         public MicroInstruction getCell(long address)
  28         {
  29                 return real.getCell(address);
  30         }
  31
  32         @Override
  33         public void setCell(long address, MicroInstruction data)
  34         {
  35                 real.setCell(address, data);
  36         }
  37
  38         @Override
  39         public void registerObserver(MemoryObserver ob)
  40         {
  41                 observers.add(ob);
  42         }
  43
  44         @Override
  45         public void deregisterObserver(MemoryObserver ob)
  46         {
  47                 observers.remove(ob);
  48         }
  49
  50         @Override
  51         public void notifyObservers(long address)
  52         {
  53                 observers.forEach(o -> o.update(address));
  54         }
  55
  56         @Override
  57         public MicroInstructionMemoryDefinition getDefinition()
  58         {
  59                 return real.getDefinition();
  60         }
  61
  62         @Override
  63         public void update(long address)
  64         {
  65                 notifyObservers(address);
  66         }
  67 }