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      1  1.1  matt /*	$NetBSD: ctz.S,v 1.1 2014/09/03 19:34:25 matt Exp $ */
      2  1.1  matt 
      3  1.1  matt /*-
      4  1.1  matt  * Copyright (C) 2001	Martin J. Laubach <mjl (at) NetBSD.org>
      5  1.1  matt  * All rights reserved.
      6  1.1  matt  *
      7  1.1  matt  * Redistribution and use in source and binary forms, with or without
      8  1.1  matt  * modification, are permitted provided that the following conditions
      9  1.1  matt  * are met:
     10  1.1  matt  * 1. Redistributions of source code must retain the above copyright
     11  1.1  matt  *    notice, this list of conditions and the following disclaimer.
     12  1.1  matt  * 2. Redistributions in binary form must reproduce the above copyright
     13  1.1  matt  *    notice, this list of conditions and the following disclaimer in the
     14  1.1  matt  *    documentation and/or other materials provided with the distribution.
     15  1.1  matt  * 3. The name of the author may not be used to endorse or promote products
     16  1.1  matt  *    derived from this software without specific prior written permission.
     17  1.1  matt  *
     18  1.1  matt  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  1.1  matt  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  1.1  matt  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  1.1  matt  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  1.1  matt  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     23  1.1  matt  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     24  1.1  matt  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     25  1.1  matt  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26  1.1  matt  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     27  1.1  matt  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  1.1  matt  */
     29  1.1  matt /*----------------------------------------------------------------------*/
     30  1.1  matt 
     31  1.1  matt #include <machine/asm.h>
     32  1.1  matt 
     33  1.1  matt __RCSID("$NetBSD: ctz.S,v 1.1 2014/09/03 19:34:25 matt Exp $")
     34  1.1  matt 
     35  1.1  matt ENTRY_NP(__ctzsi2)
     36  1.1  matt #ifdef _LP64
     37  1.1  matt 	l.extwz	r3, r3
     38  1.1  matt #endif
     39  1.1  matt 	l.ff1	r11, r3
     40  1.1  matt 	l.addi	r11, r11, -1
     41  1.1  matt 	l.jr	lr
     42  1.1  matt 	l.nop
     43  1.1  matt END(__ctzsi2)
     44  1.1  matt 
     45  1.1  matt ENTRY_NP(__ctzdi2)
     46  1.1  matt #ifdef _LP64
     47  1.1  matt 	l.ff1	r11, r3
     48  1.1  matt 	l.addi	r11, r11, -1
     49  1.1  matt 	l.jr	lr
     50  1.1  matt 	l.nop
     51  1.1  matt #else
     52  1.1  matt 	l.sfeqi	r4, 0
     53  1.1  matt 	l.bf	1f
     54  1.1  matt 	l.nop
     55  1.1  matt 
     56  1.1  matt 	l.ff1	r11, r4
     57  1.1  matt 	l.addi	r11, r11, -1
     58  1.1  matt 	l.jr	lr
     59  1.1  matt 	l.nop
     60  1.1  matt 
     61  1.1  matt 1:	l.sfeqi	r3, 0
     62  1.1  matt 	l.addi	r12, r0, 64
     63  1.1  matt 	l.ff1	r11, r3
     64  1.1  matt 	l.addi	r11, r11, 31
     65  1.1  matt 	l.cmov	r11, r12, r11
     66  1.1  matt 	l.jr	lr
     67  1.1  matt 	l.nop
     68  1.1  matt #endif
     69  1.1  matt END(__ctzdi2)
     70