Added missing loop backed pins. (nw)

src/emu/bus/c64/4dxh.c

@@ -78,3 +78,23 @@ c64_4dxh_device::c64_4dxh_device(const machine_config &mconfig, const char *tag,
 void c64_4dxh_device::device_start()
 {
 }
+
+
+//-------------------------------------------------
+//  input_4
+//-------------------------------------------------
+
+WRITE_LINE_MEMBER( c64_4dxh_device::input_4 )
+{
+	output_6(state);
+}
+
+
+//-------------------------------------------------
+//  input_6
+//-------------------------------------------------
+
+WRITE_LINE_MEMBER( c64_4dxh_device::input_6 )
+{
+	output_4(state);
+}

src/emu/bus/c64/4dxh.h

@@ -36,6 +36,10 @@ public:
 	// optional information overrides
 	virtual ioport_constructor device_input_ports() const;
 
+	// device_pet_user_port_interface overrides
+	virtual DECLARE_WRITE_LINE_MEMBER( input_4 );
+	virtual DECLARE_WRITE_LINE_MEMBER( input_6 );
+
 protected:
 	// device-level overrides
 	virtual void device_start();

src/emu/bus/c64/4ksa.c

@@ -78,3 +78,23 @@ c64_4ksa_device::c64_4ksa_device(const machine_config &mconfig, const char *tag,
 void c64_4ksa_device::device_start()
 {
 }
+
+
+//-------------------------------------------------
+//  input_4
+//-------------------------------------------------
+
+WRITE_LINE_MEMBER( c64_4ksa_device::input_4 )
+{
+	output_6(state);
+}
+
+
+//-------------------------------------------------
+//  input_6
+//-------------------------------------------------
+
+WRITE_LINE_MEMBER( c64_4ksa_device::input_6 )
+{
+	output_4(state);
+}

src/emu/bus/c64/4ksa.h

@@ -36,6 +36,10 @@ public:
 	// optional information overrides
 	virtual ioport_constructor device_input_ports() const;
 
+	// device_pet_user_port_interface overrides
+	virtual DECLARE_WRITE_LINE_MEMBER( input_4 );
+	virtual DECLARE_WRITE_LINE_MEMBER( input_6 );
+
 protected:
 	// device-level overrides
 	virtual void device_start();

src/emu/bus/c64/4tba.c

@@ -78,3 +78,23 @@ c64_4tba_device::c64_4tba_device(const machine_config &mconfig, const char *tag,
 void c64_4tba_device::device_start()
 {
 }
+
+
+//-------------------------------------------------
+//  input_4
+//-------------------------------------------------
+
+WRITE_LINE_MEMBER( c64_4tba_device::input_4 )
+{
+	output_6(state);
+}
+
+
+//-------------------------------------------------
+//  input_6
+//-------------------------------------------------
+
+WRITE_LINE_MEMBER( c64_4tba_device::input_6 )
+{
+	output_4(state);
+}

src/emu/bus/c64/4tba.h

@@ -36,6 +36,10 @@ public:
 	// optional information overrides
 	virtual ioport_constructor device_input_ports() const;
 
+	// device_pet_user_port_interface overrides
+	virtual DECLARE_WRITE_LINE_MEMBER( input_4 );
+	virtual DECLARE_WRITE_LINE_MEMBER( input_6 );
+
 protected:
 	// device-level overrides
 	virtual void device_start();

src/emu/bus/c64/bn1541.h

@@ -61,6 +61,7 @@ protected:
 	virtual void parallel_data_w(UINT8 data);
 	virtual void parallel_strobe_w(int state);
 
+	// device_pet_user_port_interface overrides
 	virtual DECLARE_WRITE_LINE_MEMBER(input_8);
 	virtual WRITE_LINE_MEMBER(input_c) { if (state) m_parallel_output |= 1; else m_parallel_output &= ~1; update_output(); }
 	virtual WRITE_LINE_MEMBER(input_d) { if (state) m_parallel_output |= 2; else m_parallel_output &= ~2; update_output(); }

src/emu/bus/plus4/diag264_lb_user.h

@@ -47,13 +47,13 @@ protected:
 	virtual DECLARE_WRITE_LINE_MEMBER(input_j) { output_4(state); }
 	virtual DECLARE_WRITE_LINE_MEMBER(input_f) { output_5(state); }
 
-	//virtual DECLARE_WRITE_LINE_MEMBER(input_c) { output_m(state); }
+	virtual DECLARE_WRITE_LINE_MEMBER(input_c) { output_m(state); }
 	virtual DECLARE_WRITE_LINE_MEMBER(input_d) { output_l(state); }
 	virtual DECLARE_WRITE_LINE_MEMBER(input_e) { output_h(state); }
 
 	virtual DECLARE_WRITE_LINE_MEMBER(input_m) { output_c(state); }
-	//virtual DECLARE_WRITE_LINE_MEMBER(input_l) { output_d(state); }
-	//virtual DECLARE_WRITE_LINE_MEMBER(input_h) { output_e(state); }
+	virtual DECLARE_WRITE_LINE_MEMBER(input_l) { output_d(state); }
+	virtual DECLARE_WRITE_LINE_MEMBER(input_h) { output_e(state); }
 };
 
 // device type definition