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

   1 package net.mograsim.machine.mi;
   2
   3 import java.math.BigInteger;
   4 import java.util.HashSet;
   5 import java.util.Set;
   6
   7 import net.mograsim.logic.core.types.BitVector;
   8 import net.mograsim.machine.Memory.MemoryCellModifiedListener;
   9
  10 public class AssignableMPROM implements MPROM, MemoryCellModifiedListener
  11 {
  12
  13         private Set<MemoryCellModifiedListener> observers = new HashSet<>();
  14
  15         private Set<MPROMReassignedListener> reassignmentListeners = new HashSet<>();
  16         private MPROM real = null;
  17
  18         public AssignableMPROM(MPROM standardMPROM)
  19         {
  20                 real = standardMPROM;
  21                 real.registerCellModifiedListener(this);
  22         }
  23
  24         public void bind(MPROM real)
  25         {
  26                 this.real.deregisterCellModifiedListener(this);
  27                 this.real = real;
  28                 real.registerCellModifiedListener(this);
  29                 notifyMemoryChanged(-1);
  30                 notifyMemoryReassigned(real);
  31         }
  32
  33         @Override
  34         public BitVector getCell(long address)
  35         {
  36                 return real.getCell(address);
  37         }
  38
  39         @Override
  40         public void setCell(long address, BitVector data)
  41         {
  42                 real.setCell(address, data);
  43         }
  44
  45         @Override
  46         public BigInteger getCellAsBigInteger(long address)
  47         {
  48                 return real.getCellAsBigInteger(address);
  49         }
  50
  51         @Override
  52         public void registerCellModifiedListener(MemoryCellModifiedListener ob)
  53         {
  54                 observers.add(ob);
  55         }
  56
  57         @Override
  58         public void deregisterCellModifiedListener(MemoryCellModifiedListener ob)
  59         {
  60                 observers.remove(ob);
  61         }
  62
  63         private void notifyMemoryChanged(long address)
  64         {
  65                 observers.forEach(o -> o.update(address));
  66         }
  67
  68         @Override
  69         public MPROMDefinition getDefinition()
  70         {
  71                 return real.getDefinition();
  72         }
  73
  74         @Override
  75         public void update(long address)
  76         {
  77                 notifyMemoryChanged(address);
  78         }
  79
  80         public void registerMemoryReassignedListener(MPROMReassignedListener listener)
  81         {
  82                 reassignmentListeners.add(listener);
  83         }
  84
  85         public void deregisterMemoryReassignedListener(MPROMReassignedListener listener)
  86         {
  87                 reassignmentListeners.remove(listener);
  88         }
  89
  90         private void notifyMemoryReassigned(MPROM newAssignee)
  91         {
  92                 reassignmentListeners.forEach(l -> l.reassigned(newAssignee));
  93         }
  94
  95         public static interface MPROMReassignedListener
  96         {
  97                 public void reassigned(MPROM newAssignee);
  98         }
  99 }