diff --git a/de/darkress/pic16f84sim/commands/Andlw.java b/de/darkress/pic16f84sim/commands/Andlw.java
index b5d1547..d907155 100644
--- a/de/darkress/pic16f84sim/commands/Andlw.java
+++ b/de/darkress/pic16f84sim/commands/Andlw.java
@@ -1,6 +1,7 @@
 package de.darkress.pic16f84sim.commands;
 
 import de.darkress.pic16f84sim.microcontroller.Memory;
+import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
 
 public class Andlw extends LiteralCommandUtils implements Command
 {
@@ -18,5 +19,6 @@ public class Andlw extends LiteralCommandUtils implements Command
         checkZeroBit(result);
 
         Memory.workingRegister = result % 256;
+        ProgramCounter.incPC();
     }
 }
diff --git a/de/darkress/pic16f84sim/commands/Decfsz.java b/de/darkress/pic16f84sim/commands/Decfsz.java
index 948c5aa..9931eb2 100644
--- a/de/darkress/pic16f84sim/commands/Decfsz.java
+++ b/de/darkress/pic16f84sim/commands/Decfsz.java
@@ -25,8 +25,7 @@ public class Decfsz extends FileRegisterCommandUtils implements Command
 
         if((result % 256) == 0)
         {
-            Nop nop = new Nop();
-            nop.execute(); // TODO: What happens if an interrupt gets triggered during the nop execution?
+            ProgramCounter.incPC();
         }
         ProgramCounter.incPC();
     }
diff --git a/de/darkress/pic16f84sim/commands/Incfsz.java b/de/darkress/pic16f84sim/commands/Incfsz.java
index e795c7c..538b42c 100644
--- a/de/darkress/pic16f84sim/commands/Incfsz.java
+++ b/de/darkress/pic16f84sim/commands/Incfsz.java
@@ -25,8 +25,7 @@ public class Incfsz extends FileRegisterCommandUtils implements Command
 
         if((result % 256) == 0)
         {
-            Nop nop = new Nop();
-            nop.execute(); // TODO: What happens if an interrupt gets triggered during the nop execution?
+            ProgramCounter.incPC();
         }
         ProgramCounter.incPC();
     }
diff --git a/de/darkress/pic16f84sim/commands/Iorlw.java b/de/darkress/pic16f84sim/commands/Iorlw.java
index d564e87..207c6f5 100644
--- a/de/darkress/pic16f84sim/commands/Iorlw.java
+++ b/de/darkress/pic16f84sim/commands/Iorlw.java
@@ -1,6 +1,7 @@
 package de.darkress.pic16f84sim.commands;
 
 import de.darkress.pic16f84sim.microcontroller.Memory;
+import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
 
 public class Iorlw extends LiteralCommandUtils implements Command
 {
@@ -18,5 +19,6 @@ public class Iorlw extends LiteralCommandUtils implements Command
         checkZeroBit(result);
 
         Memory.workingRegister = result % 256;
+        ProgramCounter.incPC();
     }
 }
diff --git a/de/darkress/pic16f84sim/commands/Sublw.java b/de/darkress/pic16f84sim/commands/Sublw.java
index ed28bbd..df5c37d 100644
--- a/de/darkress/pic16f84sim/commands/Sublw.java
+++ b/de/darkress/pic16f84sim/commands/Sublw.java
@@ -1,6 +1,7 @@
 package de.darkress.pic16f84sim.commands;
 
 import de.darkress.pic16f84sim.microcontroller.Memory;
+import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
 
 public class Sublw extends LiteralCommandUtils implements Command
 {
@@ -41,5 +42,6 @@ public class Sublw extends LiteralCommandUtils implements Command
         checkDigitCarryBit(literal);
 
         Memory.workingRegister = result % 256;
+        ProgramCounter.incPC();
     }
 }
diff --git a/de/darkress/pic16f84sim/commands/Xorlw.java b/de/darkress/pic16f84sim/commands/Xorlw.java
index e93d615..836b32c 100644
--- a/de/darkress/pic16f84sim/commands/Xorlw.java
+++ b/de/darkress/pic16f84sim/commands/Xorlw.java
@@ -1,6 +1,7 @@
 package de.darkress.pic16f84sim.commands;
 
 import de.darkress.pic16f84sim.microcontroller.Memory;
+import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
 
 public class Xorlw extends LiteralCommandUtils implements Command
 {
@@ -18,5 +19,6 @@ public class Xorlw extends LiteralCommandUtils implements Command
         checkZeroBit(result);
 
         Memory.workingRegister = result % 256;
+        ProgramCounter.incPC();
     }
 }