diff --git a/src/main/java/fabrik/simulator/pic16f84/Controller_Frontend.java b/src/main/java/fabrik/simulator/pic16f84/Controller_Frontend.java
index 186c949..9975190 100644
--- a/src/main/java/fabrik/simulator/pic16f84/Controller_Frontend.java
+++ b/src/main/java/fabrik/simulator/pic16f84/Controller_Frontend.java
@@ -62,28 +62,39 @@ public class Controller_Frontend {
     @FXML
     private Label intconLabel;
 
-
-
-
-
     @FXML
     private Button stepButton;
 
-
-
     @FXML
     private Button autoRunGUI;
 
+    @FXML
+    private Button stopButton;
 
 
 
 
+    private volatile boolean isAutoRunActive = true;
+
+
+
+    @FXML
+    private void stopAutoRun(ActionEvent event) {
+
+        isAutoRunActive = false;
+    }
+
+
+
 
     @FXML
     private void autoRunGUI(ActionEvent event) {
+        if (!isAutoRunActive) {
+            isAutoRunActive = true;
+        }
         Thread autoRunThread = new Thread(() -> {
             try {
-                while (DataRegister.getPC() < prog.length) {
+                while (DataRegister.getPC() < prog.length && isAutoRunActive){
 
                     Platform.runLater(() -> {
                         try {
@@ -92,7 +103,7 @@ public class Controller_Frontend {
                             e.printStackTrace();
                         }
                     });
-                    Thread.sleep(200); // Millisekunden
+                    Thread.sleep(200); //Verzögerungszeit in Millisekunden
                 }
             } catch (InterruptedException e) {
                 e.printStackTrace();
@@ -100,9 +111,12 @@ public class Controller_Frontend {
         });
         autoRunThread.setDaemon(true);
         autoRunThread.start();
+
     }
 
 
+
+
     @FXML
     private void stepintoButton(ActionEvent event) throws IOException {
         if (lstContentListView.getItems().isEmpty()) {
@@ -295,6 +309,7 @@ public class Controller_Frontend {
 
         lstContentListView.getStylesheets().add(Objects.requireNonNull(getClass().getResource("styles.css")).toExternalForm());
         autoRunGUI.setOnAction(this::autoRunGUI);
+        stopButton.setOnAction(this::stopAutoRun);
     }
 
     private static void setTRISbuttons(ToggleButtonGroup[] allButtons) {
diff --git a/src/main/java/fabrik/simulator/pic16f84/styles.css b/src/main/java/fabrik/simulator/pic16f84/styles.css
index b49b6c8..e4d1fcd 100644
--- a/src/main/java/fabrik/simulator/pic16f84/styles.css
+++ b/src/main/java/fabrik/simulator/pic16f84/styles.css
@@ -1,4 +1,5 @@
 
 .list-cell:selected {
     -fx-background-color: yellow;
-}
\ No newline at end of file
+}
+
diff --git a/src/main/resources/fabrik/simulator/pic16f84/frontend.fxml b/src/main/resources/fabrik/simulator/pic16f84/frontend.fxml
index 1a0ea2c..8842ca4 100644
--- a/src/main/resources/fabrik/simulator/pic16f84/frontend.fxml
+++ b/src/main/resources/fabrik/simulator/pic16f84/frontend.fxml
@@ -28,6 +28,7 @@
 
       <!--RIchtiger AUtorun button für die Gui der funktioniert -->
       <Button fx:id="autoRunGUI" layoutX="182.0" layoutY="400.0" text="Auto Run" onAction="#autoRunGUI"/>
+      <Button fx:id="stopButton" layoutX="302.0" layoutY="400.0" text="Stop" onAction="#stopAutoRun"/>
 
       <HBox layoutX="807.0" layoutY="134.0" prefHeight="293.0" prefWidth="701.0">
          <children>