diff --git a/EMU7800/Core/NullDevice.cs b/EMU7800/Core/NullDevice.cs
deleted file mode 100644
index d0c691543d..0000000000
--- a/EMU7800/Core/NullDevice.cs
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * NullDevice.cs
- *
- * Default memory mappable device.
- *
- * Copyright © 2003, 2004 Mike Murphy
- *
- */
-using System;
-
-namespace EMU7800.Core
-{
-    public sealed class NullDevice : IDevice
-    {
-        MachineBase M { get; set; }
-
-        #region IDevice Members
-
-        public void Reset()
-        {
-            Log("{0} reset", this);
-        }
-
-        public byte this[ushort addr]
-        {
-            get
-            {
-                LogDebug("NullDevice: Peek at ${0:x4}, PC=${1:x4}", addr, M.CPU.PC);
-                return 0;
-            }
-            set
-            {
-                LogDebug("NullDevice: Poke at ${0:x4},${1:x2}, PC=${2:x4}", addr, value, M.CPU.PC);
-            }
-        }
-
-        #endregion
-
-        public override String ToString()
-        {
-            return "NullDevice";
-        }
-
-        #region Constructors
-
-        private NullDevice()
-        {
-        }
-
-        public NullDevice(MachineBase m)
-        {
-            if (m == null)
-                throw new ArgumentNullException("m");
-            M = m;
-        }
-
-        #endregion
-
-        #region Helpers
-
-        void Log(string format, params object[] args)
-        {
-            if (M == null || M.Logger == null)
-                return;
-            M.Logger.WriteLine(format, args);
-        }
-
-        [System.Diagnostics.Conditional("DEBUG")]
-        void LogDebug(string format, params object[] args)
-        {
-            if (M == null || M.Logger == null)
-                return;
-            M.Logger.WriteLine(format, args);
-        }
-
-        #endregion
-    }
-}
\ No newline at end of file