diff --git a/XT.cs b/XT.cs
index dcf88a4..0770239 100644
--- a/XT.cs
+++ b/XT.cs
@@ -109,6 +109,12 @@ public P8086(ref Bus b, string test, TMode t_mode, uint load_test_at, bool termi
         _flags |= 2;
     }
 
+    public void Reset()
+    {
+        _cs = 0xf000;
+        _ip = 0xfff0;
+    }
+
     public int GetClock()
     {
         return _clock;
diff --git a/main.cs b/main.cs
index d17005f..0b9d214 100644
--- a/main.cs
+++ b/main.cs
@@ -472,6 +472,9 @@
                 thread.Join();
             }
 
+            b.ClearMemory();
+            p.Reset();
+
             runner_parameters.exit.set(false);
             thread = CreateRunnerThread(runner_parameters);
             running = true;