diff --git a/src/common/scripting/jit/jit_flow.cpp b/src/common/scripting/jit/jit_flow.cpp
index 007d05ef49..fc257a59f5 100644
--- a/src/common/scripting/jit/jit_flow.cpp
+++ b/src/common/scripting/jit/jit_flow.cpp
@@ -6,7 +6,7 @@ void JitCompiler::EmitTEST()
 	int i = (int)(ptrdiff_t)(pc - sfunc->Code);
 
 	auto continuebb = irfunc->createBasicBlock({});
-	cc.CreateCondBr(cc.CreateICmpEQ(LoadD(A), ConstValueD(BC)), GetLabel(i + 2), continuebb);
+	cc.CreateCondBr(cc.CreateICmpNE(LoadD(A), ConstValueD(BC)), GetLabel(i + 2), continuebb);
 	cc.SetInsertPoint(continuebb);
 }
 
@@ -16,7 +16,7 @@ void JitCompiler::EmitTESTN()
 	int i = (int)(ptrdiff_t)(pc - sfunc->Code);
 
 	auto continuebb = irfunc->createBasicBlock({});
-	cc.CreateCondBr(cc.CreateICmpEQ(LoadD(A), ConstValueD(-bc)), GetLabel(i + 2), continuebb);
+	cc.CreateCondBr(cc.CreateICmpNE(LoadD(A), ConstValueD(-bc)), GetLabel(i + 2), continuebb);
 	cc.SetInsertPoint(continuebb);
 }
 
diff --git a/src/common/scripting/jit/jit_load.cpp b/src/common/scripting/jit/jit_load.cpp
index 32411a9312..18cf304325 100644
--- a/src/common/scripting/jit/jit_load.cpp
+++ b/src/common/scripting/jit/jit_load.cpp
@@ -114,13 +114,13 @@ void JitCompiler::EmitLH_R()
 void JitCompiler::EmitLW()
 {
 	EmitNullPointerThrow(B, X_READ_NIL);
-	StoreD(SExt(Load(ToInt32Ptr(LoadA(B), ConstD(C)))), A);
+	StoreD(Load(ToInt32Ptr(LoadA(B), ConstD(C))), A);
 }
 
 void JitCompiler::EmitLW_R()
 {
 	EmitNullPointerThrow(B, X_READ_NIL);
-	StoreD(SExt(Load(ToInt32Ptr(LoadA(B), LoadD(C)))), A);
+	StoreD(Load(ToInt32Ptr(LoadA(B), LoadD(C))), A);
 }
 
 void JitCompiler::EmitLBU()