Port x64 backend to xbyak

src/common/iterator_util.h

@@ -0,0 +1,39 @@
+/* This file is part of the dynarmic project.
+ * Copyright (c) 2016 MerryMage
+ * This software may be used and distributed according to the terms of the GNU
+ * General Public License version 2 or any later version.
+ */
+
+#pragma once
+
+#include <iterator>
+
+namespace Dynarmic {
+namespace Common {
+
+namespace detail {
+
+template<typename T>
+struct ReverseAdapter {
+    T& iterable;
+
+    auto begin() {
+        using namespace std;
+        return rbegin(iterable);
+    }
+
+    auto end() {
+        using namespace std;
+        return rend(iterable);
+    }
+};
+
+} // namespace detail
+
+template<typename T>
+detail::ReverseAdapter<T> Reverse(T&& iterable) {
+    return detail::ReverseAdapter<T>{iterable};
+}
+
+} // namespace Common
+} // namespace Dynarmic