diff --git a/source/CPU.cpp b/source/CPU.cpp
index 357fb8de..f069380a 100644
--- a/source/CPU.cpp
+++ b/source/CPU.cpp
@@ -105,7 +105,7 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
 #include "YamlHelper.h"
 
-#define LOG_IRQ_TAKEN_AND_RTI 1
+#define LOG_IRQ_TAKEN_AND_RTI 0
 
 // 6502 Accumulator Bit Flags
 	#define	 AF_SIGN       0x80
diff --git a/source/SSI263.cpp b/source/SSI263.cpp
index 3312fe5e..ab059140 100644
--- a/source/SSI263.cpp
+++ b/source/SSI263.cpp
@@ -40,7 +40,7 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
 #define LOG_SSI263 0
 #define LOG_SSI263B 0	// Alternate SSI263 logging (use in conjunction with CPU.cpp's LOG_IRQ_TAKEN_AND_RTI)
-#define LOG_SC01 1
+#define LOG_SC01 0
 
 // SSI263A registers:
 #define SSI_DURPHON	0x00