X-Git-Url: https://mograsim.net/gitweb/?a=blobdiff_plain;f=net.mograsim.machine%2Fsrc%2Fnet%2Fmograsim%2Fmachine%2FMemory.java;h=77c0d48bb44c048207aadc5ba4c8edd0566432ba;hb=7b8035a065c7b64f38850907d519f9a7dfb67e24;hp=8297ebb95e4600d06ae40723598791686498874d;hpb=61621670ab3ea56eea6571cc9bba5e015c9f0861;p=Mograsim.git

diff --git a/net.mograsim.machine/src/net/mograsim/machine/Memory.java b/net.mograsim.machine/src/net/mograsim/machine/Memory.java
index 8297ebb9..77c0d48b 100644
--- a/net.mograsim.machine/src/net/mograsim/machine/Memory.java
+++ b/net.mograsim.machine/src/net/mograsim/machine/Memory.java
@@ -16,5 +16,20 @@ public interface Memory<T>
 	 */
 	public void setCell(long address, T data);
 	
-	public long size();
+	public default long size()
+	{
+		MemoryDefinition def = getDefinition();
+		return Long.max(0, def.getMaximalAddress() - def.getMinimalAddress() + 1);
+	}
+	
+	/**
+	 * Registers an observer to be notified when a memory cell is modified
+	 */
+	public void registerObserver(MemoryObserver ob);
+	
+	public void deregisterObserver(MemoryObserver ob);
+	
+	public void notifyObservers(long address);
+	
+	public MemoryDefinition getDefinition();
 }