virtual classes

IO/AbstractIODevice.h

@@ -13,21 +13,20 @@ namespace IO
 	/// </summary>
 	class IODevice
 	{
-
 	protected:
 		std::map<size_t, IOState> states;
 
 	public:
-		IODevice();
-		virtual ~IODevice();
+		IODevice() {}
+		virtual ~IODevice() {}
 
-		virtual uint32_t GetID();
-		virtual std::string GetName();
-		virtual void GetIOStates(std::list<size_t>& io_states);
+		virtual uint32_t GetID() { return DeviceID::Abstract; }
+		virtual std::string GetName() { return "Abstract"; }
+		virtual void GetIOStates(std::list<size_t>& io_states) {}
 
-		virtual void SetState(size_t io_state, uint32_t value);
-		virtual uint32_t GetState(size_t io_state);
+		virtual void SetState(size_t io_state, uint32_t value) {}
+		virtual uint32_t GetState(size_t io_state) { return 0; }
 
-		virtual void sim(BaseLogic::TriState inputs[], BaseLogic::TriState outputs[]);
+		virtual void sim(BaseLogic::TriState inputs[], BaseLogic::TriState outputs[]) {}
 	};
 }

IO/IO.cpp

@@ -1 +1,48 @@
 #include "pch.h"
+
+namespace IO
+{
+	IOSubsystem::IOSubsystem()
+	{
+	}
+
+	IOSubsystem::~IOSubsystem()
+	{
+	}
+
+	int CreateInstance(DeviceID device_id)
+	{
+		return -1;
+	}
+
+	void Attach(int port, int handle)
+	{
+	}
+
+	void Detach(int port, int handle)
+	{
+	}
+
+	void SetState(int handle, size_t io_state, uint32_t value)
+	{
+	}
+
+	uint32_t GetState(int handle, size_t io_state)
+	{
+		return 0;
+	}
+
+	int GetPorts()
+	{
+		return 0;
+	}
+
+	void GetPortSupportedDevices(int port, std::list<DeviceID>& devices)
+	{
+		devices.clear();
+	}
+
+	void sim(int port, BaseLogic::TriState inputs[], BaseLogic::TriState outputs[])
+	{
+	}
+}