code simplification

src/main/java/com/loomcom/symon/Bus.java

@@ -79,18 +79,13 @@ public class Bus {
         int size = (this.endAddress - this.startAddress) + 1;
         deviceAddressArray = new Device[size];
    
-        List<Integer> priorities = new ArrayList<Integer>(deviceMap.keySet());
+        // getDevices() provides an OrderedSet with devices ordered by priorities
-        Collections.sort(priorities);
+        for(Device device : getDevices()) {
-        
-        for(int priority : priorities) {
-            SortedSet<Device> deviceSet = deviceMap.get(priority);
-            for(Device device : deviceSet) {
             MemoryRange range = device.getMemoryRange();
             for(int address = range.startAddress; address <= range.endAddress; ++address) {
                 deviceAddressArray[address - this.startAddress] = device;
             }
         }
-        }
         
     }
 
@@ -217,7 +212,7 @@ public class Bus {
     }
 
     public SortedSet<Device> getDevices() {
-        // Expose a copy of the device list, not the original
+        // create an ordered set of devices, ordered by device priorities
         SortedSet<Device> devices = new TreeSet<Device>();
         
         List<Integer> priorities = new ArrayList<Integer>(deviceMap.keySet());