1/*	$OpenBSD: ffs.S,v 1.1 2020/06/26 20:16:21 naddy Exp $ */
2/*
3 * Written by Christian Weisgerber <naddy@openbsd.org>.
4 * Public domain.
5 */
6
7#include "DEFS.h"
8
9ENTRY(ffs)
10	RETGUARD_SETUP(ffs, x15)
11	rbit	w1, w0
12	clz	w1, w1
13	cmp	w0, wzr
14	csinc	w0, wzr, w1, eq
15	RETGUARD_CHECK(ffs, x15)
16	ret
17END(ffs)
18.protected
19