diff --git a/source2/IL2PCU/Cosmos.IL2CPU.X86/IL/Clt.cs b/source2/IL2PCU/Cosmos.IL2CPU.X86/IL/Clt.cs
index c3c69f611..89022de58 100644
--- a/source2/IL2PCU/Cosmos.IL2CPU.X86/IL/Clt.cs
+++ b/source2/IL2PCU/Cosmos.IL2CPU.X86/IL/Clt.cs
@@ -68,7 +68,7 @@ namespace Cosmos.IL2CPU.X86.IL
 
                 //new CPUx86.Jump { DestinationLabel = NextInstructionLabel };
                 Jump_End( aMethod );
-
+                
                 new CPU.Label( LabelFalse );
                 new CPUx86.Add { DestinationReg = CPUx86.Registers.ESP, SourceValue = 4 };
                 new CPUx86.Push { DestinationValue = 0 };
diff --git a/source2/IL2PCU/Cosmos.IL2CPU.X86/ILOp.cs b/source2/IL2PCU/Cosmos.IL2CPU.X86/ILOp.cs
index 7cfb94250..e686f5011 100644
--- a/source2/IL2PCU/Cosmos.IL2CPU.X86/ILOp.cs
+++ b/source2/IL2PCU/Cosmos.IL2CPU.X86/ILOp.cs
@@ -23,8 +23,10 @@ namespace Cosmos.IL2CPU.X86
           new CPU.Jump { DestinationLabel = MethodInfoLabelGenerator.GenerateLabelName(aMethod.MethodBase) + "___EXCEPTION___EXIT" };
         }
 
-        protected void Jump_End(MethodInfo aMethod) {
-          throw new NotImplementedException();
+        protected void Jump_End(MethodInfo aMethod)
+        {
+#warning todo: Jump_End jumps to ___EXCEPTION___EXIT
+            new CPU.Jump { DestinationLabel = MethodInfoLabelGenerator.GenerateLabelName( aMethod.MethodBase ) + "___EXCEPTION___EXIT" };
         }
 
         protected uint GetStackCountForLocal(MethodInfo aMethod, LocalVariableInfo aField)
diff --git a/source2/IL2PCU/Cosmos.IL2CPU/Assembler.cs b/source2/IL2PCU/Cosmos.IL2CPU/Assembler.cs
index 9ccdc1e2d..9349d9fc0 100644
--- a/source2/IL2PCU/Cosmos.IL2CPU/Assembler.cs
+++ b/source2/IL2PCU/Cosmos.IL2CPU/Assembler.cs
@@ -17,7 +17,7 @@ namespace Cosmos.IL2CPU {
         private static SortedList<int, Stack<Assembler>> mCurrentInstance = new SortedList<int, Stack<Assembler>>();
         protected internal List<Instruction> mInstructions = new List<Instruction>();
         private List<DataMember> mDataMembers = new List<DataMember>();
-
+        private System.IO.TextWriter mLog;
         #region Properties
 
         public static Stack<Assembler> CurrentInstance
@@ -56,6 +56,7 @@ namespace Cosmos.IL2CPU {
 
         public Assembler()
         {
+            mLog = new System.IO.StreamWriter( "Cosmos.Assembler.Log" ); 
             InitILOps();
             CurrentInstance.Push( this );
         }
@@ -149,7 +150,10 @@ namespace Cosmos.IL2CPU {
             } else {
               xILOp = mILOpsHi[xOpCodeVal & 0xFF];
             }
+              mLog.Write ( "[" + xOpCode.ToString() + "] \t Stack start: " + Stack.Count.ToString() );   
             xILOp.Execute(aMethod, xOpCode);
+            mLog.WriteLine( " end: " + Stack.Count.ToString() );
+            mLog.Flush(); 
           }
         }
 
diff --git a/source2/IL2PCU/Cosmos.IL2CPU/StackContents.cs b/source2/IL2PCU/Cosmos.IL2CPU/StackContents.cs
index 2d5863a7c..31b886794 100644
--- a/source2/IL2PCU/Cosmos.IL2CPU/StackContents.cs
+++ b/source2/IL2PCU/Cosmos.IL2CPU/StackContents.cs
@@ -56,6 +56,8 @@ namespace Cosmos.IL2CPU {
 
     private Stack<Item> mStack = new Stack<Item>();
 
+
+      public int Count {get { return mStack.Count; } }
     public Item Peek() {
       return mStack.Peek();
     }