1 files changed, 9 insertions, 0 deletions
diff --git a/src/misc/ffs.c b/src/misc/ffs.c
new file mode 100644
index 00000000..2f7cb321
--- /dev/null
+++ b/src/misc/ffs.c
@@ -0,0 +1,9 @@
+#include <strings.h>
+
+int ffs(int i)
+{
+	unsigned int j = i;
+	for (i=1; j && !(j&1); j>>=1, i++);
+	if (j) return i;
+	return 0;
+}