Fleshed out Memory and Microprogramming interfaces

[Mograsim.git] / net.mograsim.machine / src / net / mograsim / machine / Memory.java

diff --git a/net.mograsim.machine/src/net/mograsim/machine/Memory.java b/net.mograsim.machine/src/net/mograsim/machine/Memory.java
index e421e47..58798c3 100644 (file)
--- a/net.mograsim.machine/src/net/mograsim/machine/Memory.java
+++ b/net.mograsim.machine/src/net/mograsim/machine/Memory.java
@@ -16,7 +16,11 @@ 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());
+       }
        
        /**
         * Registers an observer to be notified when a memory cell is modified
@@ -26,4 +30,6 @@ public interface Memory<T>
        public void deregisterObserver(MemoryObserver ob);
        
        public void notifyObservers(long address);
+       
+       public MemoryDefinition getDefinition();
 }