Intellivision track lag

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

@@ -35,6 +35,7 @@ namespace BizHawk.Emulation.Cores.Intellivision
 
 			_cpu.PendingCycles = (14934 - 3791 + _cpu.GetPendingCycles());
 			_stic.Sr1 = true;
+			islag = true;
 
 			bool active_display = _stic.active_display;
 
@@ -108,9 +109,13 @@ namespace BizHawk.Emulation.Cores.Intellivision
 			}
 			_stic.in_vb_2 = false;
 
+			if (islag)
+				lagcount++;
 		}
 
 		private int _frame;
+		public bool islag;
+		public int lagcount;
 		private int stic_row;
 		public int Frame { get { return _frame; } }
 
@@ -127,6 +132,7 @@ namespace BizHawk.Emulation.Cores.Intellivision
 		public void ResetCounters()
 		{
 			_frame = 0;
+			lagcount = 0;
 		}
 
 		public CoreComm CoreComm { get; private set; }

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

@@ -57,8 +57,8 @@ namespace BizHawk.Emulation.Cores.Intellivision
 			ser.Sync("ExecutiveRom", ref ExecutiveRom, false);
 			ser.Sync("GraphicsRom", ref GraphicsRom, false);
 			ser.Sync("GraphicsRam", ref GraphicsRam, false);
-
-
+			ser.Sync("islag", ref islag);
+			ser.Sync("lagcount", ref lagcount);
 
 			_cpu.SyncState(ser);
 			_stic.SyncState(ser);

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

@@ -43,12 +43,12 @@ namespace BizHawk.Emulation.Cores.Intellivision
 						//controllers
 						if (addr==0x01FE)
 						{
-							//Console.WriteLine("reading controller");
-							return _psg.Register[14];
+							islag = false;
+							return _psg.Register[14];			
 						}
 						if (addr == 0x01FF)
 						{
-							//Console.WriteLine("reading controller");
+							islag = false;
 							return _psg.Register[15];
 						}
 						break;

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

@@ -73,14 +73,14 @@ namespace BizHawk.Emulation.Cores.Intellivision
 
 		public int LagCount
 		{
-			get {return 0;}
+			get {return lagcount;}
 
 			set{}
 		}
 
 		public bool IsLagFrame
 		{
-			get {return false;}
+			get {return islag;}
 
 			set {}
 		}