diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/Gambatte.ITraceable.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/Gambatte.ITraceable.cs
index 73129071f7..20855e1988 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/Gambatte.ITraceable.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/Gambatte.ITraceable.cs
@@ -13,12 +13,12 @@ namespace BizHawk.Emulation.Cores.Nintendo.Gameboy
 
 		private void MakeTrace(IntPtr _s)
 		{
-			int[] s = new int[13];
-			System.Runtime.InteropServices.Marshal.Copy(_s, s, 0, 13);
+			int[] s = new int[14];
+			System.Runtime.InteropServices.Marshal.Copy(_s, s, 0, 14);
 			ushort unused;
 
 			Tracer.Put(string.Format(
-				"{13} SP:{2:x2} A:{3:x2} B:{4:x2} C:{5:x2} D:{6:x2} E:{7:x2} F:{8:x2} H:{9:x2} L:{10:x2} {11} Cy:{0}",
+				"{13} SP:{2:x2} A:{3:x2} B:{4:x2} C:{5:x2} D:{6:x2} E:{7:x2} F:{8:x2} H:{9:x2} L:{10:x2} LY:{14:x2} {11} Cy:{0}",
 				s[0],
 				s[1] & 0xffff,
 				s[2] & 0xffff,
@@ -32,7 +32,8 @@ namespace BizHawk.Emulation.Cores.Nintendo.Gameboy
 				s[10] & 0xff,
 				s[11] != 0 ? "skip" : "",
 				s[12] & 0xff,
-				Common.Components.Z80GB.NewDisassembler.Disassemble((ushort)s[1], (addr) => LibGambatte.gambatte_cpuread(GambatteState, addr), out unused).PadRight(30)
+				Common.Components.Z80GB.NewDisassembler.Disassemble((ushort)s[1], (addr) => LibGambatte.gambatte_cpuread(GambatteState, addr), out unused).PadRight(30),
+				s[13] & 0xff
 			));
 		}
 	}
diff --git a/libgambatte/src/cpu.cpp b/libgambatte/src/cpu.cpp
index 92173d1f44..e1674bebb1 100644
--- a/libgambatte/src/cpu.cpp
+++ b/libgambatte/src/cpu.cpp
@@ -505,7 +505,7 @@ void CPU::process(const unsigned long cycles) {
 			unsigned char opcode;
 			
 			if (tracecallback) {
-				int result[13];
+				int result[14];
 				result[0] = cycleCounter;
 				result[1] = PC;
 				result[2] = SP;
@@ -520,6 +520,7 @@ void CPU::process(const unsigned long cycles) {
 				result[11] = skip;
 				PC_READ(opcode);
 				result[12] = opcode;
+				result[13] = memory.debugGetLY();
 				tracecallback((void *)result);
 			}
 			else {
diff --git a/libgambatte/src/memory.h b/libgambatte/src/memory.h
index 70f4bafac3..8ffd355c31 100644
--- a/libgambatte/src/memory.h
+++ b/libgambatte/src/memory.h
@@ -85,6 +85,8 @@ public:
 	bool loaded() const { return cart.loaded(); }
 	const char * romTitle() const { return cart.romTitle(); }
 
+	int debugGetLY() const { return display.debugGetLY(); }
+
 	void setStatePtrs(SaveState &state);
 	void loadState(const SaveState &state/*, unsigned long oldCc*/);
 	void loadSavedata(const char *data) { cart.loadSavedata(data); }
diff --git a/libgambatte/src/video.h b/libgambatte/src/video.h
index 67c0856aed..4b722f1ebe 100644
--- a/libgambatte/src/video.h
+++ b/libgambatte/src/video.h
@@ -175,6 +175,8 @@ public:
 	void setCgbPalette(unsigned *lut);
 	void setVideoBuffer(uint_least32_t *videoBuf, int pitch);
 
+	int debugGetLY() const { return ppu.lyCounter().ly(); }
+
 	void dmgBgPaletteChange(const unsigned data, const unsigned long cycleCounter) {
 		update(cycleCounter);
 		bgpData[0] = data;
diff --git a/output/dll/libgambatte.dll b/output/dll/libgambatte.dll
index 752768150d..381b65d829 100644
Binary files a/output/dll/libgambatte.dll and b/output/dll/libgambatte.dll differ