diff --git a/OSBindings/Mac/Clock SignalTests/68000Tests.mm b/OSBindings/Mac/Clock SignalTests/68000Tests.mm
index 19f60943d..bd069d7c7 100644
--- a/OSBindings/Mac/Clock SignalTests/68000Tests.mm	
+++ b/OSBindings/Mac/Clock SignalTests/68000Tests.mm	
@@ -10,7 +10,6 @@
 
 #include <cassert>
 
-#define LOG_TRACE
 #include "TestRunner68000.hpp"
 
 class CPU::MC68000::ProcessorStorageTests {
diff --git a/OSBindings/Mac/Clock SignalTests/AtariSTVideoTests.mm b/OSBindings/Mac/Clock SignalTests/AtariSTVideoTests.mm
index f2419e096..7bba7b73e 100644
--- a/OSBindings/Mac/Clock SignalTests/AtariSTVideoTests.mm	
+++ b/OSBindings/Mac/Clock SignalTests/AtariSTVideoTests.mm	
@@ -337,4 +337,29 @@ struct RunLength {
 	[self testSequence:test targetLength:230];
 }
 
+- (void)testPP88 {
+	// Test a full line.
+	{
+		const RunLength test[] = {
+			{72, 8},
+			{50, 364},
+			{60, 16},
+			{50, 116},
+			{72, 8},
+			{-1}
+		};
+		[self testSequence:test targetLength:230];
+	}
+
+	{
+		const RunLength test[] = {
+			{72, 8},
+			{496, 50},
+			{72, 8},
+			{-1}
+		};
+		[self testSequence:test targetLength:186];
+	}
+}
+
 @end
diff --git a/OSBindings/Mac/Clock SignalTests/TestRunner68000.hpp b/OSBindings/Mac/Clock SignalTests/TestRunner68000.hpp
index 545895773..0f9d437fb 100644
--- a/OSBindings/Mac/Clock SignalTests/TestRunner68000.hpp	
+++ b/OSBindings/Mac/Clock SignalTests/TestRunner68000.hpp	
@@ -11,7 +11,6 @@
 
 #include <array>
 
-#define LOG_TRACE
 #include "../../../Processors/68000/68000.hpp"
 
 using Flag = CPU::MC68000::Flag;