diff --git a/Components/1770/1770.cpp b/Components/1770/1770.cpp
new file mode 100644
index 000000000..2c7ba3426
--- /dev/null
+++ b/Components/1770/1770.cpp
@@ -0,0 +1,9 @@
+//
+//  1770.cpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 17/09/2016.
+//  Copyright © 2016 Thomas Harte. All rights reserved.
+//
+
+#include "1770.hpp"
diff --git a/Components/1770/1770.hpp b/Components/1770/1770.hpp
new file mode 100644
index 000000000..3d36b6d5e
--- /dev/null
+++ b/Components/1770/1770.hpp
@@ -0,0 +1,14 @@
+//
+//  1770.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 17/09/2016.
+//  Copyright © 2016 Thomas Harte. All rights reserved.
+//
+
+#ifndef _770_hpp
+#define _770_hpp
+
+#include <stdio.h>
+
+#endif /* _770_hpp */
diff --git a/OSBindings/Mac/Clock Signal.xcodeproj/project.pbxproj b/OSBindings/Mac/Clock Signal.xcodeproj/project.pbxproj
index 08acf0b6d..e578f9243 100644
--- a/OSBindings/Mac/Clock Signal.xcodeproj/project.pbxproj	
+++ b/OSBindings/Mac/Clock Signal.xcodeproj/project.pbxproj	
@@ -348,6 +348,7 @@
 		4BC9DF4F1D04691600F44158 /* 6560.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4BC9DF4D1D04691600F44158 /* 6560.cpp */; };
 		4BC9E1EE1D23449A003FCEE4 /* 6502InterruptTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4BC9E1ED1D23449A003FCEE4 /* 6502InterruptTests.swift */; };
 		4BD14B111D74627C0088EAD6 /* StaticAnalyser.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4BD14B0F1D74627C0088EAD6 /* StaticAnalyser.cpp */; };
+		4BD468F71D8DF41D0084958B /* 1770.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4BD468F51D8DF41D0084958B /* 1770.cpp */; };
 		4BD5F1951D13528900631CD1 /* CSBestEffortUpdater.m in Sources */ = {isa = PBXBuildFile; fileRef = 4BD5F1941D13528900631CD1 /* CSBestEffortUpdater.m */; };
 		4BE77A2E1D84ADFB00BC3827 /* File.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4BE77A2C1D84ADFB00BC3827 /* File.cpp */; };
 		4BEE0A6F1D72496600532C7B /* Cartridge.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4BEE0A6A1D72496600532C7B /* Cartridge.cpp */; };
@@ -791,6 +792,8 @@
 		4BD14B0F1D74627C0088EAD6 /* StaticAnalyser.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = StaticAnalyser.cpp; path = ../../StaticAnalyser/Acorn/StaticAnalyser.cpp; sourceTree = "<group>"; };
 		4BD14B101D74627C0088EAD6 /* StaticAnalyser.hpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; name = StaticAnalyser.hpp; path = ../../StaticAnalyser/Acorn/StaticAnalyser.hpp; sourceTree = "<group>"; };
 		4BD328FD1D7E3EB5003B8C44 /* TapeParser.hpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; name = TapeParser.hpp; path = ../../StaticAnalyser/TapeParser.hpp; sourceTree = "<group>"; };
+		4BD468F51D8DF41D0084958B /* 1770.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = 1770.cpp; path = 1770/1770.cpp; sourceTree = "<group>"; };
+		4BD468F61D8DF41D0084958B /* 1770.hpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; name = 1770.hpp; path = 1770/1770.hpp; sourceTree = "<group>"; };
 		4BD5F1931D13528900631CD1 /* CSBestEffortUpdater.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = CSBestEffortUpdater.h; path = Updater/CSBestEffortUpdater.h; sourceTree = "<group>"; };
 		4BD5F1941D13528900631CD1 /* CSBestEffortUpdater.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = CSBestEffortUpdater.m; path = Updater/CSBestEffortUpdater.m; sourceTree = "<group>"; };
 		4BE77A2C1D84ADFB00BC3827 /* File.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = File.cpp; path = ../../StaticAnalyser/Commodore/File.cpp; sourceTree = "<group>"; };
@@ -1561,6 +1564,7 @@
 				4BC9DF4B1D04691600F44158 /* 6522 */,
 				4B1E85791D174DEC001EF87D /* 6532 */,
 				4BC9DF4C1D04691600F44158 /* 6560 */,
+				4BD468F81D8DF4290084958B /* 1770 */,
 			);
 			name = Components;
 			path = ../../Components;
@@ -1594,6 +1598,15 @@
 			name = Acorn;
 			sourceTree = "<group>";
 		};
+		4BD468F81D8DF4290084958B /* 1770 */ = {
+			isa = PBXGroup;
+			children = (
+				4BD468F51D8DF41D0084958B /* 1770.cpp */,
+				4BD468F61D8DF41D0084958B /* 1770.hpp */,
+			);
+			name = 1770;
+			sourceTree = "<group>";
+		};
 		4BD5F1961D1352A000631CD1 /* Updater */ = {
 			isa = PBXGroup;
 			children = (
@@ -2084,6 +2097,7 @@
 				4B4DC8211D2C2425003C5BF8 /* Vic20.cpp in Sources */,
 				4BE77A2E1D84ADFB00BC3827 /* File.cpp in Sources */,
 				4BAB62B51D327F7E00DF5BA0 /* G64.cpp in Sources */,
+				4BD468F71D8DF41D0084958B /* 1770.cpp in Sources */,
 				4BBF99141C8FBA6F0075DAFB /* CRTInputBufferBuilder.cpp in Sources */,
 				4B2409551C45AB05004DA684 /* Speaker.cpp in Sources */,
 				4B6C73BD1D387AE500AFCFCA /* DiskDrive.cpp in Sources */,