diff --git a/BizHawk.MultiClient/Global.cs b/BizHawk.MultiClient/Global.cs
index 15d8ca330f..8a372800cf 100644
--- a/BizHawk.MultiClient/Global.cs
+++ b/BizHawk.MultiClient/Global.cs
@@ -28,7 +28,8 @@ namespace BizHawk.MultiClient
 
 		public static MultitrackRewiringControllerAdapter MultitrackRewiringControllerAdapter = new MultitrackRewiringControllerAdapter();
 
-		//user -> Input -> ActiveController -> TurboAdapter(TBD) -> Lua(?) -> ..
+		//dont take my word for it, since the final word is actually in RewireInputChain, but here is a guide...
+		//user -> Input -> ActiveController -> UDLR -> StickyXORPlayerInputAdapter -> TurboAdapter(TBD) -> Lua(?TBD?) -> ..
 		//.. -> MultitrackRewiringControllerAdapter -> MovieInputSourceAdapter -> MovieInputController -> ControllerOutput(1) -> Game
 		//(1)->Input Display
 		
@@ -45,6 +46,11 @@ namespace BizHawk.MultiClient
 
 		public static UD_LR_ControllerAdapter UD_LR_ControllerAdapter = new UD_LR_ControllerAdapter();
 
+		/// <summary>
+		/// provides an opportunity to mutate the player's input in an autohold style
+		/// </summary>
+		public static StickyXORAdapter StickyXORAdapter = new StickyXORAdapter();
+
 		public static Controller ClientControls;
 
 		public static string GetOutputControllersAsMnemonic()
diff --git a/BizHawk.MultiClient/MainForm.cs b/BizHawk.MultiClient/MainForm.cs
index 7edf93ad95..5c34427d37 100644
--- a/BizHawk.MultiClient/MainForm.cs
+++ b/BizHawk.MultiClient/MainForm.cs
@@ -781,12 +781,13 @@ namespace BizHawk.MultiClient
 
 		void RewireInputChain()
 		{
-			//insert turbo and lua here?
 			Global.ControllerInputCoalescer = new InputCoalescer();
 			Global.ControllerInputCoalescer.Type = Global.ActiveController.Type;
 
 			Global.UD_LR_ControllerAdapter.Source = Global.ActiveController;
-			Global.MultitrackRewiringControllerAdapter.Source = Global.UD_LR_ControllerAdapter;
+			Global.StickyXORAdapter.Source = Global.UD_LR_ControllerAdapter;
+
+			Global.MultitrackRewiringControllerAdapter.Source = Global.StickyXORAdapter;
 			Global.MovieInputSourceAdapter.Source = Global.MultitrackRewiringControllerAdapter;
 			Global.MovieControllerAdapter.SetSource(Global.MovieInputSourceAdapter);
 			Global.ControllerOutput = Global.MovieControllerAdapter;
@@ -828,8 +829,12 @@ namespace BizHawk.MultiClient
 				{
 					if (Global.PsxCoreLibrary.IsOpen)
 					{
-						nextEmulator = new PsxCore(Global.PsxCoreLibrary);
+						PsxCore psx = new PsxCore(Global.PsxCoreLibrary);
+						nextEmulator = psx;
 						game = new RomGame();
+
+						//set disc
+						//psx.
 					}
 				}
 				else
diff --git a/BizHawk.MultiClient/movie/InputAdapters.cs b/BizHawk.MultiClient/movie/InputAdapters.cs
index 0a9b2f319f..1ad471c09e 100644
--- a/BizHawk.MultiClient/movie/InputAdapters.cs
+++ b/BizHawk.MultiClient/movie/InputAdapters.cs
@@ -43,10 +43,56 @@ namespace BizHawk.MultiClient
 		public ControllerDefinition Type { get; set; }
 
 		protected WorkingDictionary<string, bool> Buttons = new WorkingDictionary<string, bool>();
-		public bool this[string button] { get { return Buttons[button]; } set { Buttons[button] = value; } }
+		public virtual bool this[string button] { get { return Buttons[button]; } set { Buttons[button] = value; } }
+		public virtual bool IsPressed(string button) { return this[button]; }
+		public float GetFloat(string name) { return 0.0f; } //TODO
+		public void UpdateControls(int frame) { }
+
+		public virtual void LatchFrom(IController source)
+		{
+			foreach (string button in source.Type.BoolButtons)
+			{
+				Buttons[button] = source[button];
+			}
+		}
+	}
+
+	public class StickyXORAdapter : IController
+	{
+		private HashSet<string> stickySet = new HashSet<string>();
+		public IController Source;
+
+		public ControllerDefinition Type { get { return Source.Type; } set { throw new InvalidOperationException(); } }
+
 		public bool IsPressed(string button) { return this[button]; }
 		public float GetFloat(string name) { return 0.0f; } //TODO
 		public void UpdateControls(int frame) { }
+
+		public bool this[string button] { 
+			get 
+			{
+				bool source = Source[button];
+				if (source)
+				{
+				}
+				source ^= stickySet.Contains(button);
+				return source;
+			}
+			set { throw new InvalidOperationException(); }
+		}
+
+		
+		public void SetSticky(string button, bool isSticky)
+		{
+			if(isSticky)
+				stickySet.Add(button);
+			else stickySet.Remove(button);
+		}
+
+		public bool IsSticky(string button)
+		{
+			return stickySet.Contains(button);
+		}
 	}
 
 	public class MnemonicsGenerator