diff --git a/MC6850/inc/MC6850.h b/MC6850/inc/MC6850.h
index 495e4c5..7c99d71 100644
--- a/MC6850/inc/MC6850.h
+++ b/MC6850/inc/MC6850.h
@@ -266,10 +266,7 @@ namespace EightBit {
 		void reset();
 
 		void startTransmit();
-		void markTransmitStarting();
-
 		void completeReceive();
-		void markReceiveComplete();
 
 		PinLevel m_RXDATA;
 		PinLevel m_TXDATA;
diff --git a/MC6850/src/MC6850.cpp b/MC6850/src/MC6850.cpp
index d547da2..849548f 100644
Binary files a/MC6850/src/MC6850.cpp and b/MC6850/src/MC6850.cpp differ