diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..4fceb7e
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "bitwise"]
+	path = bitwise
+	url = https://github.com/AuroraFN/bitwise.git
diff --git a/bitwise b/bitwise
new file mode 160000
index 0000000..4dc7f82
--- /dev/null
+++ b/bitwise
@@ -0,0 +1 @@
+Subproject commit 4dc7f8229aba935befa3acf314b560ddef7c3a7e