/* $NetBSD: clz.S,v 1.1 2014/09/03 19:34:25 matt Exp $ */ /*- * Copyright (C) 2001 Martin J. Laubach * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /*----------------------------------------------------------------------*/ #include __RCSID("$NetBSD: clz.S,v 1.1 2014/09/03 19:34:25 matt Exp $") ENTRY_NP(__clzsi2) #ifdef _LP64 l.slli r3, r3, 32 l.addi r5, r0, 64 #else l.addi r5, r0, 32 #endif l.fl1 r11, r3 l.sub r11, r5, r11 l.jr lr l.nop END(__clzsi2) ENTRY_NP(__clzdi2) #ifdef _LP64 l.addi r5, r0, 64 #else l.sfeqi r3, 0 l.bf 1f l.nop l.addi r5, r0, 32 #endif l.fl1 r11, r3 l.sub r11, r5, r11 l.jr lr l.nop #ifndef _LP64 1: l.addi r5, r0, 64 l.fl1 r11, r4 l.sub r11, r5, r11 l.jr lr l.nop #endif END(__clzdi2)