diff --git a/include/core/controllerframe.hpp b/include/core/controllerframe.hpp
index 30f2bc3b..c69dc765 100644
--- a/include/core/controllerframe.hpp
+++ b/include/core/controllerframe.hpp
@@ -214,4 +214,63 @@ private:
 	std::vector<controller_frame> _autofire;
 };
 
+extern const char* button_symbols;
+extern const char* controller_names[];
+
+/**
+ * Generic port display function.
+ */
+template<unsigned controllers, unsigned analog_axis, unsigned buttons, unsigned sidx>
+inline void generic_port_display(const unsigned char* buffer, unsigned idx, char* buf) throw()
+{
+	if(idx > controllers) {
+		buf[0] = '\0';
+		return;
+	}
+	size_t ptr = 0;
+	for(unsigned i = 0; i < analog_axis; i++) {
+		uint16_t a = buffer[2 * idx * analog_axis + 2 * i];
+		uint16_t b = buffer[2 * idx * analog_axis + 2 * i + 1];
+		ptr += sprintf(buf + ptr, "%i ", static_cast<short>(256 * a + b));
+	}
+	for(unsigned i = 0; i < buttons; i++) {
+		size_t bit = 16 * controllers * analog_axis + idx * buttons + i;
+		buf[ptr++] = ((buffer[bit / 8] & (1 << (bit % 8))) != 0) ? button_symbols[i + sidx] : '-';
+	}
+	buf[ptr] = '\0';
+}
+
+/**
+ * Generic port controller name function.
+ */
+template<unsigned controllers, unsigned nameindex>
+inline const char* generic_controller_name(unsigned controller)
+{
+	if(controller >= controllers)
+		return NULL;
+	return controller_names[nameindex];
+}
+
+/**
+ * Generic port serialization function.
+ */
+template<unsigned controllers, unsigned analog_axis, unsigned buttons, unsigned sidx>
+inline size_t generic_port_serialize(const unsigned char* buffer, char* textbuf) throw()
+{
+	size_t ptr = 0;
+	for(unsigned j = 0; j < controllers; j++) {
+		textbuf[ptr++] = '|';
+		for(unsigned i = 0; i < buttons; i++) {
+			size_t bit = 16 * controllers * analog_axis + j * buttons + i;
+			textbuf[ptr++] = ((buffer[bit / 8] & (1 << (bit % 8))) != 0) ? button_symbols[i + sidx] : '.';
+		}
+		for(unsigned i = 0; i < analog_axis; i++) {
+			uint16_t a = buffer[2 * j * analog_axis + 2 * i];
+			uint16_t b = buffer[2 * j * analog_axis + 2 * i + 1];
+			ptr += sprintf(textbuf + ptr, " %i", static_cast<short>(256 * a + b));
+		}
+	}
+	return ptr;
+}
+
 #endif
diff --git a/include/library/controller-data.hpp b/include/library/controller-data.hpp
index 93b627be..5a5e8af8 100644
--- a/include/library/controller-data.hpp
+++ b/include/library/controller-data.hpp
@@ -1325,32 +1325,6 @@ inline short generic_port_read(const unsigned char* buffer, unsigned idx, unsign
 		return 0;
 }
 
-extern const char* button_symbols;
-extern const char* controller_names[];
-
-/**
- * Generic port display function.
- */
-template<unsigned controllers, unsigned analog_axis, unsigned buttons, unsigned sidx>
-inline void generic_port_display(const unsigned char* buffer, unsigned idx, char* buf) throw()
-{
-	if(idx > controllers) {
-		buf[0] = '\0';
-		return;
-	}
-	size_t ptr = 0;
-	for(unsigned i = 0; i < analog_axis; i++) {
-		uint16_t a = buffer[2 * idx * analog_axis + 2 * i];
-		uint16_t b = buffer[2 * idx * analog_axis + 2 * i + 1];
-		ptr += sprintf(buf + ptr, "%i ", static_cast<short>(256 * a + b));
-	}
-	for(unsigned i = 0; i < buttons; i++) {
-		size_t bit = 16 * controllers * analog_axis + idx * buttons + i;
-		buf[ptr++] = ((buffer[bit / 8] & (1 << (bit % 8))) != 0) ? button_symbols[i + sidx] : '-';
-	}
-	buf[ptr] = '\0';
-}
-
 /**
  * Generic port control index function.
  */
@@ -1362,38 +1336,6 @@ inline unsigned generic_used_indices(unsigned controller)
 	return indices;
 }
 
-/**
- * Generic port controller name function.
- */
-template<unsigned controllers, unsigned nameindex>
-inline const char* generic_controller_name(unsigned controller)
-{
-	if(controller >= controllers)
-		return NULL;
-	return controller_names[nameindex];
-}
-
-/**
- * Generic port serialization function.
- */
-template<unsigned controllers, unsigned analog_axis, unsigned buttons, unsigned sidx>
-inline size_t generic_port_serialize(const unsigned char* buffer, char* textbuf) throw()
-{
-	size_t ptr = 0;
-	for(unsigned j = 0; j < controllers; j++) {
-		textbuf[ptr++] = '|';
-		for(unsigned i = 0; i < buttons; i++) {
-			size_t bit = 16 * controllers * analog_axis + j * buttons + i;
-			textbuf[ptr++] = ((buffer[bit / 8] & (1 << (bit % 8))) != 0) ? button_symbols[i + sidx] : '.';
-		}
-		for(unsigned i = 0; i < analog_axis; i++) {
-			uint16_t a = buffer[2 * j * analog_axis + 2 * i];
-			uint16_t b = buffer[2 * j * analog_axis + 2 * i + 1];
-			ptr += sprintf(textbuf + ptr, " %i", static_cast<short>(256 * a + b));
-		}
-	}
-	return ptr;
-}
 
 /**
  * Generic port size function.
diff --git a/src/library/controller-data.cpp b/src/library/controller-data.cpp
index 6da7b3ed..fc01c492 100644
--- a/src/library/controller-data.cpp
+++ b/src/library/controller-data.cpp
@@ -28,7 +28,32 @@ namespace
 		i.indices[0].control = 0;
 		return i;
 	}
-	
+
+	inline size_t invalid_serialize(const unsigned char* buffer, char* textbuf) throw()
+	{
+		return 0;
+	}
+
+	inline void invalid_display(const unsigned char* buffer, unsigned idx, char* buf)
+	{
+		*buf = 0;
+	}
+
+	inline void basecontrol_display(const unsigned char* buffer, unsigned idx, char* buf)
+	{
+		if(idx) 
+			*buf = 0;
+		else {
+			buf[0] = (buffer[0] & 1) ? 'F' : '-';
+			buf[1] = 0;
+		}
+	}
+
+	inline const char* invalid_controller_name(unsigned c)
+	{
+		return c ? NULL : "(system)";
+	}
+
 	struct port_type_group invalid_group;
 	struct porttype_invalid : public port_type
 	{
@@ -36,13 +61,13 @@ namespace
 		{
 			write = generic_port_write<0, 0, 0>;
 			read = generic_port_read<0, 0, 0>;
-			display = generic_port_display<0, 0, 0, 0>;
-			serialize = generic_port_serialize<0, 0, 0, 0>;
+			display = invalid_display;
+			serialize = invalid_serialize;
 			deserialize = generic_port_deserialize<0, 0, 0>;
 			legal = generic_port_legal<0xFFFFFFFFU>;
 			deviceflags = generic_port_deviceflags<0, 0>;
 			used_indices = generic_used_indices<0, 0>;
-			controller_name = generic_controller_name<0, 0>;
+			controller_name = invalid_controller_name;
 			button_id = button_id_illegal;
 			construct_map = invalid_construct_map;
 			controllers = 0;
@@ -62,7 +87,7 @@ namespace
 		{
 			write = generic_port_write<1, 0, 1>;
 			read = generic_port_read<1, 0, 1>;
-			display = generic_port_display<0, 0, 0, 0>;
+			display = basecontrol_display;
 			serialize = basecontrol_serialize;
 			deserialize = generic_port_deserialize<1, 0, 1>;
 			legal = generic_port_legal<0>;
@@ -70,7 +95,7 @@ namespace
 			button_id = button_id_illegal;
 			construct_map = invalid_construct_map;
 			used_indices = generic_used_indices<1, 1>;
-			controller_name = generic_controller_name<1, 0>;
+			controller_name = invalid_controller_name;
 			controllers = 1;
 			set_core_controller = set_core_controller_illegal;
 		}