diff --git a/Source/Core/Core/PowerPC/Interpreter/Interpreter_LoadStore.cpp b/Source/Core/Core/PowerPC/Interpreter/Interpreter_LoadStore.cpp
index 823b5e716c..47021272de 100644
--- a/Source/Core/Core/PowerPC/Interpreter/Interpreter_LoadStore.cpp
+++ b/Source/Core/Core/PowerPC/Interpreter/Interpreter_LoadStore.cpp
@@ -403,7 +403,7 @@ void Interpreter::eciwx(UGeckoInstruction _inst)
 // 	_assert_msg_(POWERPC,0,"eciwx - fill r%i with word @ %08x from device %02x",
 // 		_inst.RS, EA, PowerPC::ppcState.spr[SPR_EAR] & 0x1f);
 
-	rGPR[_inst.RS] = PowerPC::Read_U32(EA);
+	rGPR[_inst.RD] = PowerPC::Read_U32(EA);
 }
 
 void Interpreter::ecowx(UGeckoInstruction _inst)
diff --git a/Source/Core/Core/PowerPC/Interpreter/Interpreter_Tables.cpp b/Source/Core/Core/PowerPC/Interpreter/Interpreter_Tables.cpp
index 25db379d24..6c6703f7e1 100644
--- a/Source/Core/Core/PowerPC/Interpreter/Interpreter_Tables.cpp
+++ b/Source/Core/Core/PowerPC/Interpreter/Interpreter_Tables.cpp
@@ -263,7 +263,7 @@ static GekkoOPTemplate table31[] =
 	{982, Interpreter::icbi,        {"icbi",   OPTYPE_SYSTEM, FL_ENDBLOCK, 4, 0, 0, 0}},
 
 	// Unused instructions on GC
-	{310, Interpreter::eciwx,       {"eciwx",   OPTYPE_SYSTEM, FL_IN_AB | FL_OUT_S, 1, 0, 0, 0}},
+	{310, Interpreter::eciwx,       {"eciwx",   OPTYPE_SYSTEM, FL_IN_A0B | FL_OUT_D, 1, 0, 0, 0}},
 	{438, Interpreter::ecowx,       {"ecowx",   OPTYPE_SYSTEM, FL_IN_AB | FL_IN_S, 1, 0, 0, 0}},
 	{854, Interpreter::eieio,       {"eieio",   OPTYPE_SYSTEM, 0, 1, 0, 0, 0}},
 	{306, Interpreter::tlbie,       {"tlbie",   OPTYPE_SYSTEM, 0, 1, 0, 0, 0}},