1*0be5e928Sguenther/* $OpenBSD: ffs.S,v 1.4 2022/06/10 01:56:02 guenther Exp $ */ 208b16776Snaddy/* 308b16776Snaddy * Written by Christian Weisgerber <naddy@openbsd.org>. 408b16776Snaddy * Public domain. 508b16776Snaddy */ 608b16776Snaddy 7*0be5e928Sguenther#include "DEFS.h" 808b16776Snaddy 908b16776SnaddyENTRY(ffs) 1015572fcfSgkoehler RETGUARD_SETUP(ffs, %r11, %r12) 1108b16776Snaddy neg %r4, %r3 1208b16776Snaddy and %r3, %r3, %r4 1308b16776Snaddy cntlzw %r3, %r3 1408b16776Snaddy subfic %r3, %r3, 32 1515572fcfSgkoehler RETGUARD_CHECK(ffs, %r11, %r12) 1608b16776Snaddy blr 17*0be5e928SguentherEND_BUILTIN(ffs) 18