diff --git a/EightBit.sln b/EightBit.sln
index 05a329d..79643c4 100644
--- a/EightBit.sln
+++ b/EightBit.sln
@@ -29,10 +29,9 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "MC6809", "MC6809\src\MC6809
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "test_MC6809", "MC6809\test\test_MC6809.vcxproj", "{80412055-64FB-417B-B017-EBF92770C922}"
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "MC6850", "MC6850\src\MC6850.vcxproj", "{A4ADA650-55C3-4C00-8DAD-E4E4AFF86EFF}"
+EndProject
 Global
-	GlobalSection(Performance) = preSolution
-		HasPerformanceSessions = true
-	EndGlobalSection
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|x64 = Debug|x64
 		Debug|x86 = Debug|x86
@@ -144,6 +143,14 @@ Global
 		{80412055-64FB-417B-B017-EBF92770C922}.Release|x64.Build.0 = Release|x64
 		{80412055-64FB-417B-B017-EBF92770C922}.Release|x86.ActiveCfg = Release|Win32
 		{80412055-64FB-417B-B017-EBF92770C922}.Release|x86.Build.0 = Release|Win32
+		{A4ADA650-55C3-4C00-8DAD-E4E4AFF86EFF}.Debug|x64.ActiveCfg = Debug|x64
+		{A4ADA650-55C3-4C00-8DAD-E4E4AFF86EFF}.Debug|x64.Build.0 = Debug|x64
+		{A4ADA650-55C3-4C00-8DAD-E4E4AFF86EFF}.Debug|x86.ActiveCfg = Debug|Win32
+		{A4ADA650-55C3-4C00-8DAD-E4E4AFF86EFF}.Debug|x86.Build.0 = Debug|Win32
+		{A4ADA650-55C3-4C00-8DAD-E4E4AFF86EFF}.Release|x64.ActiveCfg = Release|x64
+		{A4ADA650-55C3-4C00-8DAD-E4E4AFF86EFF}.Release|x64.Build.0 = Release|x64
+		{A4ADA650-55C3-4C00-8DAD-E4E4AFF86EFF}.Release|x86.ActiveCfg = Release|Win32
+		{A4ADA650-55C3-4C00-8DAD-E4E4AFF86EFF}.Release|x86.Build.0 = Release|Win32
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -160,4 +167,7 @@ Global
 	GlobalSection(Performance) = preSolution
 		HasPerformanceSessions = true
 	EndGlobalSection
+	GlobalSection(Performance) = preSolution
+		HasPerformanceSessions = true
+	EndGlobalSection
 EndGlobal
diff --git a/MC6809/src/stdafx.h b/MC6809/src/stdafx.h
new file mode 100644
index 0000000..cf71f60
Binary files /dev/null and b/MC6809/src/stdafx.h differ