diff --git a/.gitmodules b/.gitmodules
index cbdf1edc..47273304 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "tools/splat"]
 	path = tools/splat
 	url = https://github.com/ethteck/splat/
+[submodule "tools/asm-processor"]
+	path = tools/asm-processor
+	url = https://github.com/simonlindholm/asm-processor
diff --git a/tools/asm-processor b/tools/asm-processor
new file mode 160000
index 00000000..fed1e3dd
--- /dev/null
+++ b/tools/asm-processor
@@ -0,0 +1 @@
+Subproject commit fed1e3ddb9967bd427f4599b1b8ededa296bd9f9