diff --git a/Source/Core/Common/Src/x64Emitter.cpp b/Source/Core/Common/Src/x64Emitter.cpp
index be525c8035..fe839d8537 100644
--- a/Source/Core/Common/Src/x64Emitter.cpp
+++ b/Source/Core/Common/Src/x64Emitter.cpp
@@ -927,7 +927,7 @@ namespace Gen
 	void AND (int bits, const OpArg &a1, const OpArg &a2) {WriteNormalOp(bits, nrmAND, a1, a2);}
 	void OR  (int bits, const OpArg &a1, const OpArg &a2) {WriteNormalOp(bits, nrmOR , a1, a2);}
 	void XOR (int bits, const OpArg &a1, const OpArg &a2) {WriteNormalOp(bits, nrmXOR, a1, a2);}
-	inline void MOV (int bits, const OpArg &a1, const OpArg &a2) 
+	void MOV (int bits, const OpArg &a1, const OpArg &a2) 
 	{
 		_assert_msg_(DYNA_REC, !a1.IsSimpleReg() || !a2.IsSimpleReg() || a1.GetSimpleReg() != a2.GetSimpleReg(), "Redundant MOV @ %p", 
 					 code); 
@@ -1315,7 +1315,8 @@ namespace Gen
 		Write8(0x9B);
 	}
 
-	
+	void RTDSC() { Write8(0x0F); Write8(0x31); }
+
 	namespace Util
 	{
 
diff --git a/Source/Core/Common/Src/x64Emitter.h b/Source/Core/Common/Src/x64Emitter.h
index b62b24f786..995143b91a 100644
--- a/Source/Core/Common/Src/x64Emitter.h
+++ b/Source/Core/Common/Src/x64Emitter.h
@@ -160,7 +160,7 @@ namespace Gen
 				return false;
 			return GetSimpleReg() == reg;
 		}
-		bool CanDoOpWith(OpArg &other) const
+		bool CanDoOpWith(const OpArg &other) const
 		{
 			if (IsSimpleReg()) return true;
 			if (!IsSimpleReg() && !other.IsSimpleReg() && !other.IsImm()) return false;
@@ -520,6 +520,8 @@ namespace Gen
 	void PMOVMSKB(X64Reg dest, OpArg arg);
 	void PSHUFB(X64Reg dest, OpArg arg);
 
+        void RTDSC();
+
 	namespace Util
 	{
 		// Sets up a __cdecl function.