Home | History | Annotate | Line # | Download | only in boot 
      1  1.7  martin /*	$NetBSD: ashrdi3.s,v 1.7 2008/04/28 20:23:13 martin Exp $ */
      2  1.2      is 
      3  1.2      is /*-
      4  1.3      is  * Copyright (c) 1996 The NetBSD Foundation, Inc.
      5  1.2      is  * All rights reserved.
      6  1.1      is  *
      7  1.2      is  * This code is derived from software contributed to The NetBSD Foundation
      8  1.2      is  * by Ignatios Souvatzis.
      9  1.1      is  *
     10  1.1      is  * Redistribution and use in source and binary forms, with or without
     11  1.1      is  * modification, are permitted provided that the following conditions
     12  1.1      is  * are met:
     13  1.1      is  * 1. Redistributions of source code must retain the above copyright
     14  1.1      is  *    notice, this list of conditions and the following disclaimer.
     15  1.1      is  * 2. Redistributions in binary form must reproduce the above copyright
     16  1.1      is  *    notice, this list of conditions and the following disclaimer in the
     17  1.1      is  *    documentation and/or other materials provided with the distribution.
     18  1.1      is  *
     19  1.2      is  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  1.2      is  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  1.2      is  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  1.2      is  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  1.2      is  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  1.2      is  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  1.2      is  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  1.2      is  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  1.2      is  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  1.2      is  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  1.2      is  * POSSIBILITY OF SUCH DAMAGE.
     30  1.1      is  */
     31  1.1      is 
     32  1.4      is #include <machine/asm.h>
     33  1.4      is 
     34  1.4      is ENTRY_NOPROFILE(__ashrdi3)
     35  1.6  mhitch 	movl %d2,%sp@-		| 0 reg, 1 %pc, 2..4 parameters
     36  1.6  mhitch 	movml %sp@(8),%d0-%d2
     37  1.1      is 	jra L2
     38  1.1      is L1:
     39  1.5      is 	asrl #1,%d0
     40  1.5      is 	roxrl #1,%d1
     41  1.1      is L2:
     42  1.5      is 	dbra %d2,L1
     43  1.1      is 
     44  1.5      is 	movl %sp@+,%d2
     45  1.1      is 	rts
     46