Break off IsLagFrame and LagCount from IEmulator and put into its own interface IInputPollable, and refactor cores as necessary. EmuHawk - account for the possibility that a core is not an IInputPollable, and do things like disable the lag counter menu item. Still some front end todos. Also still todo, move the InputCallbackSystem from CoreComm to IInputPollable

BizHawk.Client.Common/lua/EmuLuaLibrary.Emu.cs

@@ -148,18 +148,34 @@ namespace BizHawk.Client.Common
 			"islagged",
 			"returns whether or not the current frame is a lag frame"
 		)]
-		public static bool IsLagged()
+		public bool IsLagged()
 		{
-			return Global.Emulator.IsLagFrame;
+			if (Global.Emulator.CanPollInput())
+			{
+				return (Global.Emulator as IInputPollable).IsLagFrame;
+			}
+			else
+			{
+				Log("Can not get lag information, core does not implement IInputPollable");
+				return false;
+			}
 		}
 
 		[LuaMethodAttributes(
 			"lagcount",
 			"Returns the current lag count"
 		)]
-		public static int LagCount()
+		public int LagCount()
 		{
-			return Global.Emulator.LagCount;
+			if (Global.Emulator.CanPollInput())
+			{
+				return (Global.Emulator as IInputPollable).LagCount;
+			}
+			else
+			{
+				Log("Can not get lag information, core does not implement IInputPollable");
+				return 0;
+			}
 		}
 
 		[LuaMethodAttributes(

BizHawk.Client.Common/movie/tasproj/TasLagLog.cs

@@ -3,6 +3,8 @@ using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 
+using BizHawk.Emulation.Common;
+
 namespace BizHawk.Client.Common
 {
 	public class TasLagLog
@@ -21,10 +23,10 @@ namespace BizHawk.Client.Common
 				{
 					if (frame == LagLog.Count)
 					{
-						LagLog[frame] = Global.Emulator.IsLagFrame; // Note: Side effects!
+						LagLog[frame] = (Global.Emulator as IInputPollable).IsLagFrame; // Note: Side effects!
 					}
 
-					return Global.Emulator.IsLagFrame;
+					return (Global.Emulator as IInputPollable).IsLagFrame;
 				}
 
 				return null;

BizHawk.Client.Common/movie/tasproj/TasMovie.Editing.cs

@@ -15,7 +15,7 @@ namespace BizHawk.Client.Common
 			base.RecordFrame(frame, source);
 
 			LagLog.RemoveFrom(frame);
-			LagLog[frame] = Global.Emulator.IsLagFrame;
+			LagLog[frame] = (Global.Emulator as IInputPollable).IsLagFrame;
 
 			StateManager.Capture();
 		}

BizHawk.Client.Common/movie/tasproj/TasMovie.cs

@@ -306,7 +306,7 @@ namespace BizHawk.Client.Common
 		{
 			if (frame == Global.Emulator.Frame) // Take this opportunity to capture lag and state info if we do not have it
 			{
-				LagLog[Global.Emulator.Frame] = Global.Emulator.IsLagFrame;
+				LagLog[Global.Emulator.Frame] = (Global.Emulator as IInputPollable).IsLagFrame;
 
 				if (!StateManager.HasState(frame))
 				{

BizHawk.Client.EmuHawk/DisplayManager/OSDManager.cs

@@ -4,6 +4,8 @@ using System.Text;
 using System.Drawing;
 using System.Collections.Generic;
 
+using BizHawk.Emulation.Common;
+using BizHawk.Emulation.Common.IEmulatorExtensions;
 using BizHawk.Client.Common;
 using BizHawk.Client.Common.InputAdapterExtensions;
 using BizHawk.Bizware.BizwareGL;
@@ -325,7 +327,7 @@ namespace BizHawk.Client.EmuHawk
 
 				DrawOsdMessage(g, message, Color.FromArgb(Global.Config.MessagesColor), x, y);
 
-				if (Global.Emulator.IsLagFrame)
+				if (GlobalWin.MainForm.IsLagFrame)
 				{
 					DrawOsdMessage(g, Global.Emulator.Frame.ToString(), FixedAlertMessageColor, x, y);
 				}
@@ -386,9 +388,9 @@ namespace BizHawk.Client.EmuHawk
 				DrawOsdMessage(g, FPS, FixedMessagesColor, x, y);
 			}
 
-			if (Global.Config.DisplayLagCounter)
+			if (Global.Config.DisplayLagCounter && Global.Emulator.CanPollInput())
 			{
-				var counter = Global.Emulator.LagCount.ToString();
+				var counter = (Global.Emulator as IInputPollable).LagCount.ToString();
 				var x = GetX(g, Global.Config.DispLagx, Global.Config.DispLaganchor, counter);
 				var y = GetY(g, Global.Config.DispLagy, Global.Config.DispLaganchor, counter);
 

BizHawk.Client.EmuHawk/MainForm.Events.cs

@@ -673,6 +673,8 @@ namespace BizHawk.Client.EmuHawk
 
 			DisplayStatusBarMenuItem.Checked = Global.Config.DisplayStatusBar;
 			DisplayLogWindowMenuItem.Checked = Global.Config.ShowLogWindow;
+
+			DisplayLagCounterMenuItem.Enabled = Global.Emulator.CanPollInput();
 		}
 
 		private void WindowSizeSubMenu_DropDownOpened(object sender, EventArgs e)

BizHawk.Client.EmuHawk/MainForm.cs

@@ -2646,6 +2646,19 @@ namespace BizHawk.Client.EmuHawk
 			StepRunLoop_Core(true);
 		}
 
+		public bool IsLagFrame
+		{
+			get
+			{
+				if (Global.Emulator.CanPollInput())
+				{
+					return (Global.Emulator as IInputPollable).IsLagFrame;
+				}
+
+				return false;
+			}
+		}
+
 		private void StepRunLoop_Core(bool force = false)
 		{
 			var runFrame = false;
@@ -2656,7 +2669,7 @@ namespace BizHawk.Client.EmuHawk
 			double frameAdvanceTimestampDelta = (now - _frameAdvanceTimestamp).TotalMilliseconds;
 			bool frameProgressTimeElapsed = Global.Config.FrameProgressDelayMs < frameAdvanceTimestampDelta;
 
-			if (Global.Config.SkipLagFrame && Global.Emulator.IsLagFrame && frameProgressTimeElapsed && Global.Emulator.Frame > 0)
+			if (Global.Config.SkipLagFrame && IsLagFrame && frameProgressTimeElapsed && Global.Emulator.Frame > 0)
 			{
 				runFrame = true;
 			}
@@ -2802,7 +2815,7 @@ namespace BizHawk.Client.EmuHawk
 					AvFrameAdvance();
 				}
 
-				if (Global.Emulator.IsLagFrame && Global.Config.AutofireLagFrames)
+				if (IsLagFrame && Global.Config.AutofireLagFrames)
 				{
 					Global.AutoFireController.IncrementStarts();
 				}

BizHawk.Client.EmuHawk/tools/BatchRunner.cs

@@ -2,9 +2,12 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
-using BizHawk.Client.Common;
-using BizHawk.Emulation.Common;
 using BizHawk.Common;
+using BizHawk.Emulation.Common;
+using BizHawk.Emulation.Common.IEmulatorExtensions;
+using BizHawk.Client.Common;
+
+
 
 namespace BizHawk.Client.EmuHawk
 {
@@ -180,7 +183,7 @@ namespace BizHawk.Client.EmuHawk
 						// some cores really really really like it if you drain their audio every frame
 						emu.SyncSoundProvider.GetSamples(out samp, out nsamp);
 						current.Frames++;
-						if (emu.IsLagFrame)
+						if (emu.CanPollInput() && (emu as IInputPollable).IsLagFrame)
 							current.LaggedFrames++;
 					}
 					catch (Exception e)

BizHawk.Emulation.Common/BizHawk.Emulation.Common.csproj

@@ -64,6 +64,7 @@
     <Compile Include="Interfaces\ICoreService.cs" />
     <Compile Include="Interfaces\IDebuggable.cs" />
     <Compile Include="Interfaces\IEmulator.cs" />
+    <Compile Include="Interfaces\IInputPollable.cs" />
     <Compile Include="Interfaces\IMemoryDomains.cs" />
     <Compile Include="Interfaces\ISaveRam.cs" />
     <Compile Include="Interfaces\ISettable.cs" />

BizHawk.Emulation.Common/Extensions.cs

@@ -27,6 +27,11 @@ namespace BizHawk.Emulation.Common.IEmulatorExtensions
 			return core is IStatable;
 		}
 
+		public static bool CanPollInput(this IEmulator core)
+		{
+			return core is IInputPollable;
+		}
+
 		public static bool IsNull(this IEmulator core)
 		{
 			return core == null || core is NullEmulator;

BizHawk.Emulation.Common/Interfaces/Base Implementations/NullEmulator.cs

@@ -65,9 +65,6 @@ namespace BizHawk.Emulation.Common
 		public IController Controller { get; set; }
 
 		public int Frame { get; set; }
-		public int LagCount { get { return 0; } set { return; } }
-		public bool IsLagFrame { get { return false; } }
-
 		public bool DeterministicEmulation { get { return true; } }
 
 		public int[] GetVideoBuffer() { return frameBuffer; }

BizHawk.Emulation.Common/Interfaces/IEmulator.cs

@@ -47,17 +47,6 @@ namespace BizHawk.Emulation.Common
 		/// </summary>
 		int Frame { get; }
 
-		/// <summary>
-		/// The lag count.
-		/// </summary>
-		int LagCount { get; set; }
-
-		/// <summary>
-		/// If the current frame is a lag frame.
-		/// All cores should define it the same, a lag frame is a frame in which input was not polled.
-		/// </summary>
-		bool IsLagFrame { get; }
-
 		/// <summary>
 		/// The unique Id of the given core, for instance "NES"
 		/// </summary>

BizHawk.Emulation.Common/Interfaces/IInputPollable.cs

@@ -0,0 +1,16 @@
+namespace BizHawk.Emulation.Common
+{
+	public interface IInputPollable : ICoreService, IEmulator
+	{
+		/// <summary>
+		/// The lag count.
+		/// </summary>
+		int LagCount { get; set; }
+
+		/// <summary>
+		/// If the current frame is a lag frame.
+		/// All cores should define it the same, a lag frame is a frame in which input was not polled.
+		/// </summary>
+		bool IsLagFrame { get; }
+	}
+}

BizHawk.Emulation.Cores/Calculator/TI83.cs

@@ -19,7 +19,7 @@ namespace BizHawk.Emulation.Cores.Calculators
 		isPorted: false,
 		isReleased: true
 		)]
-	public partial class TI83 : IEmulator, IMemoryDomains, IStatable, IDebuggable, ISettable<TI83.TI83Settings, object>
+	public partial class TI83 : IEmulator, IMemoryDomains, IStatable, IDebuggable, IInputPollable, ISettable<TI83.TI83Settings, object>
 	{
 		//hardware
 		private readonly Z80A cpu = new Z80A();

BizHawk.Emulation.Cores/Computers/Commodore64/C64.cs

@@ -13,7 +13,7 @@ namespace BizHawk.Emulation.Cores.Computers.Commodore64
 		isPorted: false,
 		isReleased: false
 		)]
-	sealed public partial class C64 : IEmulator, IMemoryDomains, IStatable
+	sealed public partial class C64 : IEmulator, IMemoryDomains, IStatable, IInputPollable
 	{
 		// internal variables
 		private bool _islag = true;

BizHawk.Emulation.Cores/Consoles/Atari/2600/Atari2600.cs

@@ -15,7 +15,7 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
 		isPorted: false,
 		isReleased: true
 		)]
-	public partial class Atari2600 : IEmulator, IMemoryDomains, IStatable, IDebuggable, ISettable<Atari2600.A2600Settings, Atari2600.A2600SyncSettings>
+	public partial class Atari2600 : IEmulator, IMemoryDomains, IStatable, IDebuggable, IInputPollable, ISettable<Atari2600.A2600Settings, Atari2600.A2600SyncSettings>
 	{
 		private readonly GameInfo _game;
 		private bool _islag = true;

BizHawk.Emulation.Cores/Consoles/Atari/7800/Atari7800.cs

@@ -16,7 +16,7 @@ namespace BizHawk.Emulation.Cores.Atari.Atari7800
 		portedVersion: "v1.5",
 		portedUrl: "http://emu7800.sourceforge.net/"
 		)]
-	public partial class Atari7800 : IEmulator, IMemoryDomains, ISaveRam, IDebuggable, IStatable
+	public partial class Atari7800 : IEmulator, IMemoryDomains, ISaveRam, IDebuggable, IStatable, IInputPollable
 	{
 		// TODO:
 		// some things don't work when you try to plug in a 2600 game

BizHawk.Emulation.Cores/Consoles/Atari/lynx/Lynx.cs

@@ -12,7 +12,7 @@ using Newtonsoft.Json;
 namespace BizHawk.Emulation.Cores.Atari.Lynx
 {
 	[CoreAttributes("Handy", "K. Wilkins", true, true, "mednafen 0-9-34-1", "http://mednafen.sourceforge.net/")]
-	public class Lynx : IEmulator, IVideoProvider, ISyncSoundProvider, IMemoryDomains, ISaveRam, IStatable
+	public class Lynx : IEmulator, IVideoProvider, ISyncSoundProvider, IMemoryDomains, ISaveRam, IStatable, IInputPollable
 	{
 		IntPtr Core;
 

BizHawk.Emulation.Cores/Consoles/Coleco/ColecoVision.cs

@@ -17,7 +17,7 @@ namespace BizHawk.Emulation.Cores.ColecoVision
 		isPorted: false,
 		isReleased: true
 		)]
-	public sealed partial class ColecoVision : IEmulator, IMemoryDomains, IDebuggable, ISettable<object, ColecoVision.ColecoSyncSettings>
+	public sealed partial class ColecoVision : IEmulator, IMemoryDomains, IDebuggable, IInputPollable, ISettable<object, ColecoVision.ColecoSyncSettings>
 	{
 		// ROM
 		public byte[] RomData;

BizHawk.Emulation.Cores/Consoles/Intellivision/Intellivision.cs

@@ -134,14 +134,6 @@ namespace BizHawk.Emulation.Cores.Intellivision
 		public IController Controller { get; set; }
 		public int Frame { get; set; }
 
-		public int LagCount
-		{
-			get { return 0; }
-			set { }
-		}
-
-		public bool IsLagFrame { get { return false; } }
-
 		public string SystemId
 		{
 			get { return "INTV"; }
@@ -155,8 +147,6 @@ namespace BizHawk.Emulation.Cores.Intellivision
 		public void ResetCounters()
 		{
 			Frame = 0;
-			LagCount = 0;
-			//IsLagFrame = false;
 		}
 
 		public CoreComm CoreComm { get; private set; }

BizHawk.Emulation.Cores/Consoles/Nintendo/GBA/Meteor.cs

@@ -14,7 +14,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.GBA
 		isPorted: true,
 		isReleased: false
 		)]
-	public class GBA : IEmulator, IVideoProvider, ISyncSoundProvider, IGBAGPUViewable, IMemoryDomains, ISaveRam, IDebuggable, IStatable
+	public class GBA : IEmulator, IVideoProvider, ISyncSoundProvider, IGBAGPUViewable, IMemoryDomains, ISaveRam, IDebuggable, IStatable, IInputPollable
 	{
 		public IDictionary<string, int> GetCpuFlagsAndRegisters()
 		{

BizHawk.Emulation.Cores/Consoles/Nintendo/GBA/VBANext.cs

@@ -14,7 +14,7 @@ using BizHawk.Common;
 namespace BizHawk.Emulation.Cores.Nintendo.GBA
 {
 	[CoreAttributes("VBA-Next", "many authors", true, true, "cd508312a29ed8c29dacac1b11c2dce56c338a54", "https://github.com/libretro/vba-next")]
-	public class VBANext : IEmulator, IVideoProvider, ISyncSoundProvider,
+	public class VBANext : IEmulator, IVideoProvider, ISyncSoundProvider, IInputPollable,
 		IGBAGPUViewable, IMemoryDomains, ISaveRam, IStatable, IDebuggable, ISettable<object, VBANext.SyncSettings>
 	{
 		IntPtr Core;

BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/Gambatte.cs

@@ -22,7 +22,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.Gameboy
 		portedVersion: "SVN 344",
 		portedUrl: "http://gambatte.sourceforge.net/"
 		)]
-	public class Gameboy : IEmulator, IVideoProvider, ISyncSoundProvider, ISaveRam, IStatable,
+	public class Gameboy : IEmulator, IVideoProvider, ISyncSoundProvider, ISaveRam, IStatable, IInputPollable,
 		IMemoryDomains, IDebuggable, ISettable<Gameboy.GambatteSettings, Gameboy.GambatteSyncSettings>
 	{
 		#region ALL SAVESTATEABLE STATE GOES HERE

BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/GambatteLink.cs

@@ -17,7 +17,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.Gameboy
 		isPorted: true,
 		isReleased: true
 		)]
-	public class GambatteLink : IEmulator, IVideoProvider, ISyncSoundProvider,
+	public class GambatteLink : IEmulator, IVideoProvider, ISyncSoundProvider, IInputPollable, ISaveRam, IStatable,
 		IDebuggable, ISettable<GambatteLink.GambatteLinkSettings, GambatteLink.GambatteLinkSyncSettings>
 	{
 		bool disposed = false;

BizHawk.Emulation.Cores/Consoles/Nintendo/N64/N64.cs

@@ -17,7 +17,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.N64
 		portedVersion: "2.0",
 		portedUrl: "https://code.google.com/p/mupen64plus/"
 		)]
-	public partial class N64 : IEmulator, IMemoryDomains, ISaveRam, IDebuggable, IStatable,
+	public partial class N64 : IEmulator, IMemoryDomains, ISaveRam, IDebuggable, IStatable, IInputPollable,
 		ISettable<N64Settings, N64SyncSettings>
 	{
 		private readonly N64Input _inputProvider;

BizHawk.Emulation.Cores/Consoles/Nintendo/NES/NES.cs

@@ -17,7 +17,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
 		isPorted: false,
 		isReleased: true
 		)]
-	public partial class NES : IEmulator, IMemoryDomains, ISaveRam, IDebuggable, IStatable,
+	public partial class NES : IEmulator, IMemoryDomains, ISaveRam, IDebuggable, IStatable, IInputPollable,
 		ISettable<NES.NESSettings, NES.NESSyncSettings>
 	{
 		static readonly bool USE_DATABASE = true;

BizHawk.Emulation.Cores/Consoles/Nintendo/QuickNES/QuickNES.cs

@@ -22,8 +22,8 @@ namespace BizHawk.Emulation.Cores.Consoles.Nintendo.QuickNES
 		portedVersion: "0.7.0",
 		portedUrl: "https://github.com/kode54/QuickNES"
 		)]
-	public class QuickNES : IEmulator, IVideoProvider, ISyncSoundProvider, IMemoryDomains, ISaveRam, IStatable,
+	public class QuickNES : IEmulator, IVideoProvider, ISyncSoundProvider, IMemoryDomains, ISaveRam, IInputPollable,
-		IDebuggable, ISettable<QuickNES.QuickNESSettings, QuickNES.QuickNESSyncSettings>
+		IStatable, IDebuggable, ISettable<QuickNES.QuickNESSettings, QuickNES.QuickNESSyncSettings>
 	{
 		#region FPU precision
 

BizHawk.Emulation.Cores/Consoles/Nintendo/SNES/LibsnesCore.cs

@@ -29,7 +29,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.SNES
 		portedVersion: "v87",
 		portedUrl: "http://byuu.org/"
 		)]
-	public unsafe class LibsnesCore : IEmulator, IVideoProvider, IMemoryDomains, ISaveRam, IStatable,
+	public unsafe class LibsnesCore : IEmulator, IVideoProvider, IMemoryDomains, ISaveRam, IStatable, IInputPollable,
 		IDebuggable, ISettable<LibsnesCore.SnesSettings, LibsnesCore.SnesSyncSettings>
 	{
 		public LibsnesCore(GameInfo game, byte[] romData, bool deterministicEmulation, byte[] xmlData, CoreComm comm, object Settings, object SyncSettings)

BizHawk.Emulation.Cores/Consoles/Nintendo/SNES9X/Snes9x.cs

@@ -41,19 +41,13 @@ namespace BizHawk.Emulation.Cores.Nintendo.SNES9X
 			Frame++;
 
 			LibSnes9x.debug_advance(_vbuff);
-
-			if (IsLagFrame)
-				LagCount++;
 		}
 
 		public int Frame { get; private set; }
-		public int LagCount { get; set; }
-		public bool IsLagFrame { get { return true; } }
 
 		public void ResetCounters()
 		{
 			Frame = 0;
-			LagCount = 0;
 		}
 
 		public string SystemId { get { return "SNES"; } }

BizHawk.Emulation.Cores/Consoles/PC Engine/PCEngine.cs

@@ -22,7 +22,7 @@ namespace BizHawk.Emulation.Cores.PCEngine
 		isPorted: false,
 		isReleased: true
 		)]
-	public sealed partial class PCEngine : IEmulator, IMemoryDomains, ISaveRam, IStatable,
+	public sealed partial class PCEngine : IEmulator, IMemoryDomains, ISaveRam, IStatable, IInputPollable,
 		IDebuggable, ISettable<PCEngine.PCESettings, PCEngine.PCESyncSettings>
 	{
 		// ROM

BizHawk.Emulation.Cores/Consoles/Sega/Genesis/Genesis.cs

@@ -21,7 +21,7 @@ namespace BizHawk.Emulation.Cores.Sega.Genesis
 		isPorted: false,
 		isReleased: false
 		)]
-	public sealed partial class Genesis : IEmulator, IMemoryDomains, IDebuggable, ISaveRam, IStatable
+	public sealed partial class Genesis : IEmulator, IMemoryDomains, IDebuggable, ISaveRam, IStatable, IInputPollable
 	{
 		private int _lagcount = 0;
 		private bool lagged = true;

BizHawk.Emulation.Cores/Consoles/Sega/gpgx/GPGX.cs

@@ -25,7 +25,7 @@ namespace BizHawk.Emulation.Cores.Consoles.Sega.gpgx
 		portedUrl: "https://code.google.com/p/genplus-gx/"
 		)]
 	public class GPGX : IEmulator, ISyncSoundProvider, IVideoProvider, IMemoryDomains, ISaveRam, IStatable,
-		IDebuggable, ISettable<GPGX.GPGXSettings, GPGX.GPGXSyncSettings>
+		IInputPollable, IDebuggable, ISettable<GPGX.GPGXSettings, GPGX.GPGXSyncSettings>
 	{
 		static GPGX AttachedCore = null;
 

BizHawk.Emulation.Cores/Consoles/Sony/PSP/PSP.cs

@@ -123,26 +123,6 @@ namespace BizHawk.Emulation.Cores.Sony.PSP
 			get { return 0; }
 		}
 
-		public int LagCount
-		{
-			[FeatureNotImplemented]
-			get
-			{
-				return 0;
-			}
-
-			[FeatureNotImplemented]
-			set
-			{
-			}
-		}
-
-		public bool IsLagFrame
-		{
-			[FeatureNotImplemented]
-			get { return true; }
-		}
-
 		[FeatureNotImplemented]
 		public void ResetCounters()
 		{

BizHawk.Emulation.Cores/Consoles/Sony/PSX/Octoshock.cs

@@ -214,13 +214,11 @@ namespace BizHawk.Emulation.Cores.Sony.PSX
 			}
 		}
 
-
+		[FeatureNotImplemented]
 		public void ResetCounters()
 		{
 			// FIXME when all this stuff is implemented
 			Frame = 0;
-			LagCount = 0;
-			//IsLagFrame = false;
 		}
 
 		public void FrameAdvance(bool render, bool rendersound)
@@ -268,20 +266,6 @@ namespace BizHawk.Emulation.Cores.Sony.PSX
 			set;
 		}
 
-		public int LagCount
-		{
-			[FeatureNotImplemented]
-			get { return 0; }
-
-			[FeatureNotImplemented]
-			set { return; }
-		}
-		public bool IsLagFrame
-		{
-			[FeatureNotImplemented]
-			get { return false; }
-		}
-
 		[FeatureNotImplemented]
 		public bool DeterministicEmulation { get { return true; } }
 

BizHawk.Emulation.Cores/Consoles/WonderSwan/WonderSwan.cs

@@ -13,7 +13,7 @@ namespace BizHawk.Emulation.Cores.WonderSwan
 {
 	[CoreAttributes("Cygne/Mednafen", "Dox", true, true, "0.9.36.5", "http://mednafen.sourceforge.net/")]
 	public class WonderSwan : IEmulator, IVideoProvider, ISyncSoundProvider, IMemoryDomains, ISaveRam, IStatable,
-		IDebuggable, ISettable<WonderSwan.Settings, WonderSwan.SyncSettings>
+		IInputPollable, IDebuggable, ISettable<WonderSwan.Settings, WonderSwan.SyncSettings>
 	{
 		#region Controller