diff --git a/Source/Core/Core/PowerPC/Interpreter/Interpreter_FPUtils.h b/Source/Core/Core/PowerPC/Interpreter/Interpreter_FPUtils.h
index 2c1b0f7076..66ce49a8b0 100644
--- a/Source/Core/Core/PowerPC/Interpreter/Interpreter_FPUtils.h
+++ b/Source/Core/Core/PowerPC/Interpreter/Interpreter_FPUtils.h
@@ -231,3 +231,33 @@ inline u32 ConvertToSingleFTZ(u64 x)
 		return (x >> 32) & 0x80000000;
 	}
 }
+
+inline u64 ConvertToDouble(u32 _x)
+{
+	u64 x = _x;
+	u64 exp = (x >> 23) & 0xff;
+	u64 frac = x & 0x007fffff;
+	if (exp || frac == 0)
+	{
+		// not denormalized
+		u64 y = exp & 0x80;
+		u64 z = y << 54 | y << 53 | y << 52;
+		if (exp > 0 && exp < 255)
+		{
+			// not inf/nan/zero
+			z = ~z;
+		}
+		return ((x & 0xc0000000) << 32) | z | ((x & 0x3fffffff) << 29);
+	}
+	else
+	{
+		// denormalized
+		exp = 1023 - 126;
+		do
+		{
+			frac <<= 1;
+			exp -= 1;
+		} while ((frac & 0x00800000) == 0);
+		return ((x & 0x80000000) << 32) | (exp << 52) | ((frac & 0x007fffff) << 29);
+	}
+}
diff --git a/Source/Core/Core/PowerPC/Interpreter/Interpreter_LoadStore.cpp b/Source/Core/Core/PowerPC/Interpreter/Interpreter_LoadStore.cpp
index 3fb441f5b9..0356bd4247 100644
--- a/Source/Core/Core/PowerPC/Interpreter/Interpreter_LoadStore.cpp
+++ b/Source/Core/Core/PowerPC/Interpreter/Interpreter_LoadStore.cpp
@@ -93,9 +93,9 @@ void Interpreter::lfs(UGeckoInstruction _inst)
 	u32 uTemp = Memory::Read_U32(Helper_Get_EA(_inst));
 	if (!(PowerPC::ppcState.Exceptions & EXCEPTION_DSI))
 	{
-		double value = *(float*)&uTemp;
-		rPS0(_inst.FD) = value;
-		rPS1(_inst.FD) = value;
+		u64 value = ConvertToDouble(uTemp);
+		riPS0(_inst.FD) = value;
+		riPS1(_inst.FD) = value;
 	}
 }
 
@@ -105,9 +105,9 @@ void Interpreter::lfsu(UGeckoInstruction _inst)
 	u32 uTemp = Memory::Read_U32(uAddress);
 	if (!(PowerPC::ppcState.Exceptions & EXCEPTION_DSI))
 	{
-		double value = *(float*)&uTemp;
-		rPS0(_inst.FD) = value;
-		rPS1(_inst.FD) = value;
+		u64 value = ConvertToDouble(uTemp);
+		riPS0(_inst.FD) = value;
+		riPS1(_inst.FD) = value;
 		m_GPR[_inst.RA] = uAddress;
 	}
 
@@ -119,9 +119,9 @@ void Interpreter::lfsux(UGeckoInstruction _inst)
 	u32 uTemp = Memory::Read_U32(uAddress);
 	if (!(PowerPC::ppcState.Exceptions & EXCEPTION_DSI))
 	{
-		double value = *(float*)&uTemp;
-		rPS0(_inst.FD) = value;
-		rPS1(_inst.FD) = value;
+		u64 value = ConvertToDouble(uTemp);
+		riPS0(_inst.FD) = value;
+		riPS1(_inst.FD) = value;
 		m_GPR[_inst.RA] = uAddress;
 	}
 }
@@ -131,9 +131,9 @@ void Interpreter::lfsx(UGeckoInstruction _inst)
 	u32 uTemp = Memory::Read_U32(Helper_Get_EA_X(_inst));
 	if (!(PowerPC::ppcState.Exceptions & EXCEPTION_DSI))
 	{
-		double value = *(float*)&uTemp;
-		rPS0(_inst.FD) = value;
-		rPS1(_inst.FD) = value;
+		u64 value = ConvertToDouble(uTemp);
+		riPS0(_inst.FD) = value;
+		riPS1(_inst.FD) = value;
 	}
 }
 
@@ -282,9 +282,6 @@ void Interpreter::stfdu(UGeckoInstruction _inst)
 
 void Interpreter::stfs(UGeckoInstruction _inst)
 {
-	//double value = rPS0(_inst.FS);
-	//float fTemp = (float)value;
-	//Memory::Write_U32(*(u32*)&fTemp, Helper_Get_EA(_inst));
 	Memory::Write_U32(ConvertToSingle(riPS0(_inst.FS)), Helper_Get_EA(_inst));
 }