Move dead submodules in-tree

Signed-off-by: swurl <swurl@swurl.xyz>

externals/dynarmic/tests/fuzz_util.h

@@ -0,0 +1,31 @@
+/* This file is part of the dynarmic project.
+ * Copyright (c) 2018 MerryMage
+ * SPDX-License-Identifier: 0BSD
+ */
+
+#pragma once
+
+#include <array>
+#include <iosfwd>
+
+#include <mcl/stdint.hpp>
+
+using Vector = std::array<u64, 2>;
+
+std::ostream& operator<<(std::ostream& o, Vector vec);
+Vector RandomVector();
+u32 RandomFpcr();
+
+struct InstructionGenerator final {
+public:
+    explicit InstructionGenerator(const char* format);
+
+    u32 Generate() const;
+    u32 Bits() const { return bits; }
+    u32 Mask() const { return mask; }
+    bool Match(u32 inst) const { return (inst & mask) == bits; }
+
+private:
+    u32 bits = 0;
+    u32 mask = 0;
+};