diff --git a/BizHawk.Emulation/Computers/Commodore64/C64.Core.cs b/BizHawk.Emulation/Computers/Commodore64/C64.Core.cs
index 44cbfbb2a6..2acfcbd8c9 100644
--- a/BizHawk.Emulation/Computers/Commodore64/C64.Core.cs
+++ b/BizHawk.Emulation/Computers/Commodore64/C64.Core.cs
@@ -198,6 +198,11 @@ namespace BizHawk.Emulation.Computers.Commodore64
 			sid.HardReset();
 			vic.HardReset();
 		}
+
+		public void SyncState()
+		{
+			
+		}
 	}
 
 	static public class C64Util
diff --git a/BizHawk.Emulation/Computers/Commodore64/MOS/MOS6526.cs b/BizHawk.Emulation/Computers/Commodore64/MOS/MOS6526.cs
index 6f10f26443..99c59bb0da 100644
--- a/BizHawk.Emulation/Computers/Commodore64/MOS/MOS6526.cs
+++ b/BizHawk.Emulation/Computers/Commodore64/MOS/MOS6526.cs
@@ -525,6 +525,72 @@ namespace BizHawk.Emulation.Computers.Commodore64.MOS
 			}
 		}
 
+		public void SyncState(Serializer ser)
+		{
+			int chipRegionInt = (int)chipRegion;
+			int timerInModeInt0 = (int)timerInMode[0];
+			int timerInModeInt1 = (int)timerInMode[1];
+			int timerOutModeInt0 = (int)timerOutMode[0];
+			int timerOutModeInt1 = (int)timerOutMode[1];
+			int timerRunModeInt0 = (int)timerRunMode[0];
+			int timerRunModeInt1 = (int)timerRunMode[1];
+			int timerSPModeInt = (int)timerSPMode;
+
+			SyncInternal(ser);
+			ser.Sync("alarmSelect", ref alarmSelect);
+			ser.Sync("chipRegion", ref chipRegionInt);
+			ser.Sync("cntPos", ref cntPos);
+			ser.Sync("enableIntAlarm", ref enableIntAlarm);
+			ser.Sync("enableIntFlag", ref enableIntFlag);
+			ser.Sync("enableIntSP", ref enableIntSP);
+			ser.Sync("enableIntTimer0", ref enableIntTimer[0]);
+			ser.Sync("enableIntTimer1", ref enableIntTimer[1]);
+			ser.Sync("intAlarm", ref intAlarm);
+			ser.Sync("intFlag", ref intFlag);
+			ser.Sync("intSP", ref intSP);
+			ser.Sync("intTimer0", ref intTimer[0]);
+			ser.Sync("intTimer1", ref intTimer[1]);
+			ser.Sync("pinCnt", ref pinCnt);
+			ser.Sync("pinFlag", ref pinFlag);
+			ser.Sync("pinPC", ref pinPC);
+			ser.Sync("sr", ref sr);
+			ser.Sync("timerDelay0", ref timerDelay[0]);
+			ser.Sync("timerDelay1", ref timerDelay[1]);
+			ser.Sync("timerInMode0", ref timerInModeInt0);
+			ser.Sync("timerInMode1", ref timerInModeInt1);
+			ser.Sync("timerOutMode0", ref timerOutModeInt0);
+			ser.Sync("timerOutMode1", ref timerOutModeInt1);
+			ser.Sync("timerPortEnable0", ref timerPortEnable[0]);
+			ser.Sync("timerPortEnable1", ref timerPortEnable[1]);
+			ser.Sync("timerPulse0", ref timerPulse[0]);
+			ser.Sync("timerPulse1", ref timerPulse[1]);
+			ser.Sync("timerRunMode0", ref timerRunModeInt0);
+			ser.Sync("timerRunMode1", ref timerRunModeInt1);
+			ser.Sync("timerSPMode", ref timerSPModeInt);
+			ser.Sync("tod0", ref tod[0]);
+			ser.Sync("tod1", ref tod[1]);
+			ser.Sync("tod2", ref tod[2]);
+			ser.Sync("tod3", ref tod[3]);
+			ser.Sync("todAlarm0", ref todAlarm[0]);
+			ser.Sync("todAlarm1", ref todAlarm[1]);
+			ser.Sync("todAlarm2", ref todAlarm[2]);
+			ser.Sync("todAlarm3", ref todAlarm[3]);
+			ser.Sync("todAlarmPM", ref todAlarmPM);
+			ser.Sync("todCounter", ref todCounter);
+			ser.Sync("todCounterLatch", ref todCounterLatch);
+			ser.Sync("todIn", ref todIn);
+			ser.Sync("todPM", ref todPM);
+
+			chipRegion = (Region)chipRegionInt;
+			timerInMode[0] = (InMode)timerInModeInt0;
+			timerInMode[1] = (InMode)timerInModeInt1;
+			timerOutMode[0] = (OutMode)timerOutModeInt0;
+			timerOutMode[1] = (OutMode)timerOutModeInt1;
+			timerRunMode[0] = (RunMode)timerRunModeInt0;
+			timerRunMode[1] = (RunMode)timerRunModeInt1;
+			timerSPMode = (SPMode)timerSPModeInt;
+		}
+
 		public void Write(ushort addr, byte val)
 		{
 			Write(addr, val, 0xFF);
diff --git a/BizHawk.Emulation/Computers/Commodore64/MOS/Timer.cs b/BizHawk.Emulation/Computers/Commodore64/MOS/Timer.cs
index 553a5e96f2..a0d36e8905 100644
--- a/BizHawk.Emulation/Computers/Commodore64/MOS/Timer.cs
+++ b/BizHawk.Emulation/Computers/Commodore64/MOS/Timer.cs
@@ -105,6 +105,21 @@ namespace BizHawk.Emulation.Computers.Commodore64.MOS
 
 		protected void SyncInternal(Serializer ser)
 		{
+			ser.Sync("pinIRQ", ref pinIRQ);
+			ser.Sync("portData0", ref portData[0]);
+			ser.Sync("portData1", ref portData[1]);
+			ser.Sync("portDir0", ref portDir[0]);
+			ser.Sync("portDir1", ref portDir[1]);
+			ser.Sync("portMask0", ref portMask[0]);
+			ser.Sync("portMask1", ref portMask[1]);
+			ser.Sync("timer0", ref timer[0]);
+			ser.Sync("timer1", ref timer[1]);
+			ser.Sync("timerLatch0", ref timerLatch[0]);
+			ser.Sync("timerLatch1", ref timerLatch[1]);
+			ser.Sync("timerOn0", ref timerOn[0]);
+			ser.Sync("timerOn1", ref timerOn[1]);
+			ser.Sync("underflow0", ref underflow[0]);
+			ser.Sync("underflow1", ref underflow[1]);
 		}
 
 		private void WritePort(uint index, byte data)