diff --git a/.gitignore b/.gitignore
index 862f14a..e76bce3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 build
+cov
 *.out
 *.o
 *.s
\ No newline at end of file
diff --git a/cov.sh b/cov.sh
new file mode 100644
index 0000000..ff67644
--- /dev/null
+++ b/cov.sh
@@ -0,0 +1,5 @@
+mkdir -p cov && cd cov && 
+rm *
+gcc --coverage -g -O0 ../boot.c
+./a.out < ../boot.c > /dev/null
+gcov a-boot.c