2013-12-06 12:04:52 +01:00
|
|
|
/* $NetBSD: ashrdi3.S,v 1.7 2013/07/18 21:18:36 matt Exp $ */
|
2011-02-14 20:36:03 +01:00
|
|
|
|
|
|
|
|
/*-
|
|
|
|
|
* Copyright (c) 1996 The NetBSD Foundation, Inc.
|
|
|
|
|
* All rights reserved.
|
|
|
|
|
*
|
|
|
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
|
|
|
* by J.T. Conklin.
|
|
|
|
|
*
|
|
|
|
|
* 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.
|
|
|
|
|
*
|
|
|
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
|
|
|
* ``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 FOUNDATION OR CONTRIBUTORS
|
|
|
|
|
* 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 <machine/asm.h>
|
|
|
|
|
|
|
|
|
|
| d0 msw
|
|
|
|
|
| d1 lsw
|
|
|
|
|
| d2 shift
|
|
|
|
|
| d3 offset (32 - shift)
|
|
|
|
|
|
|
|
|
|
ENTRY(__ashrdi3)
|
2013-12-06 12:04:52 +01:00
|
|
|
link %fp,#-12
|
|
|
|
|
moveml %d2-%d4,(%sp)
|
|
|
|
|
movel 8(%fp),%d0
|
|
|
|
|
movel 12(%fp),%d1
|
|
|
|
|
movel 16(%fp),%d2
|
2011-02-14 20:36:03 +01:00
|
|
|
moveq #32,%d3
|
|
|
|
|
subl %d2,%d3
|
|
|
|
|
jgt L2
|
|
|
|
|
negl %d3
|
|
|
|
|
movel %d0,%d1
|
|
|
|
|
asrl %d3,%d1
|
|
|
|
|
smi %d0
|
|
|
|
|
extbl %d0
|
|
|
|
|
jra L3
|
|
|
|
|
L2: lsrl %d2,%d1
|
|
|
|
|
movel %d0,%d4
|
|
|
|
|
asll %d3,%d4
|
|
|
|
|
orl %d4,%d1
|
|
|
|
|
asrl %d2,%d0
|
2013-12-06 12:04:52 +01:00
|
|
|
L3: moveml -12(%fp),%d2-%d4
|
|
|
|
|
unlk %fp
|
2011-02-14 20:36:03 +01:00
|
|
|
rts
|
2013-12-06 12:04:52 +01:00
|
|
|
END(__ashrdi3)
|
