diff --git a/assembler.js b/assembler.js
index 875b46b..d77ea9b 100644
--- a/assembler.js
+++ b/assembler.js
@@ -18,6 +18,7 @@ function SimulatorWidget(node) {
   var labels = Labels();
   var simulator = Simulator();
   var assembler = Assembler();
+  var noaddress = false; 
 
   function initialize() {
     stripText();
@@ -43,6 +44,9 @@ function SimulatorWidget(node) {
         simulator.stopDebugger();
       }
     });
+    $node.find('.noaddress').change(function (){
+      noaddress = $(this).is(':checked');
+    });
     $node.find('.monitoring').change(function () {
       ui.toggleMonitor();
       simulator.toggleMonitor();
@@ -247,9 +251,12 @@ function SimulatorWidget(node) {
         if ((x & 15) === 0) {
           if (x > 0) { html += "\n"; }
           n = (start + x);
-          html += num2hex(((n >> 8) & 0xff));
-          html += num2hex((n & 0xff));
-          html += ": ";
+            if (!noaddress)
+            {
+                html += num2hex(((n >> 8) & 0xff));
+                html += num2hex((n & 0xff));
+                html += ": ";
+            }
         }
         html += num2hex(memory.get(start + x));
         html += " ";
diff --git a/index.html b/index.html
index c037c3b..d71b029 100644
--- a/index.html
+++ b/index.html
@@ -22,7 +22,9 @@
 
       <div class="debugger">
         <input type="checkbox" class="debug" name="debug" />
-        <label for="debug">Debugger</label>
+        <label for="debug">Debugger</label><br/>
+        <input type="checkbox" class="noaddress" name="noaddress" />
+        <label for="noaddress">No address in hexdump</label>
         <div class="minidebugger"></div>
         <div class="buttons">
           <input type="button" value="Step" class="stepButton" />
diff --git a/style.css b/style.css
index 9dd1529..9d9ab67 100644
--- a/style.css
+++ b/style.css
@@ -25,7 +25,7 @@
   padding: 6px;
   border: 1px solid black;
   width: 420px;
-  height: 290px;
+  height: 315px;
   font-family: monospace;
   overflow: auto;
   float: left;
@@ -40,7 +40,7 @@
   margin-top: 6px;
   padding: 3px;
   padding-top: 8px;
-  height: 125px;
+  height: 150px;
   width: 152px;
   text-align: center;
   float: right;