diff --git a/Server/src/main/java/net/simon987/server/assembly/CPU.java b/Server/src/main/java/net/simon987/server/assembly/CPU.java
index ecae97f..bd2f594 100755
--- a/Server/src/main/java/net/simon987/server/assembly/CPU.java
+++ b/Server/src/main/java/net/simon987/server/assembly/CPU.java
@@ -166,8 +166,6 @@ public class CPU implements JSONSerialisable {
         memory.set(EXECUTED_INS_ADDR, Util.getHigherWord(counter));
         memory.set(EXECUTED_INS_ADDR + 1, Util.getLowerWord(counter));
 
-        System.out.println(this);//todo remove
-
         return elapsed;
     }
 
diff --git a/Server/src/main/java/net/simon987/server/assembly/instruction/CmpInstruction.java b/Server/src/main/java/net/simon987/server/assembly/instruction/CmpInstruction.java
index 313f367..ea6676e 100644
--- a/Server/src/main/java/net/simon987/server/assembly/instruction/CmpInstruction.java
+++ b/Server/src/main/java/net/simon987/server/assembly/instruction/CmpInstruction.java
@@ -31,7 +31,7 @@ public class CmpInstruction extends Instruction {
 
         status.setSignFlag(Util.checkSign16(result));
         status.setZeroFlag((char) result == 0);
-        status.setOverflowFlag(Util.checkOverFlowAdd16(a, b));
+        status.setOverflowFlag(Util.checkOverFlowSub16(a, b));
         status.setCarryFlag(Util.checkCarry16(result));
 
         return status;