diff --git a/libevmjit/Endianness.cpp b/libevmjit/Endianness.cpp
new file mode 100644
index 0000000000..7de7b95141
--- /dev/null
+++ b/libevmjit/Endianness.cpp
@@ -0,0 +1,24 @@
+
+#include "Endianness.h"
+
+#include <llvm/IR/IntrinsicInst.h>
+
+#include "Type.h"
+
+namespace dev
+{
+namespace eth
+{
+namespace jit
+{
+
+llvm::Value* Endianness::toBE(llvm::IRBuilder<>& _builder, llvm::Value* _word)
+{
+	// TODO: Native is Little Endian
+	auto bswap = llvm::Intrinsic::getDeclaration(_builder.GetInsertBlock()->getParent()->getParent(), llvm::Intrinsic::bswap, Type::i256);
+	return _builder.CreateCall(bswap, _word);
+}
+
+}
+}
+}
diff --git a/libevmjit/Endianness.h b/libevmjit/Endianness.h
new file mode 100644
index 0000000000..7b449b4d85
--- /dev/null
+++ b/libevmjit/Endianness.h
@@ -0,0 +1,22 @@
+
+#pragma once
+
+#include <llvm/IR/IRBuilder.h>
+
+namespace dev
+{
+namespace eth
+{
+namespace jit
+{
+
+class Endianness
+{
+public:
+
+	static llvm::Value* toBE(llvm::IRBuilder<>& _builder, llvm::Value* _word);
+};
+
+}
+}
+}