61 lines
1.9 KiB
ArmAsm
61 lines
1.9 KiB
ArmAsm
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/* $NetBSD: lshrdi3.S,v 1.5 2008/04/28 20:22:56 martin Exp $ */
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/*-
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* Copyright (c) 1996 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by J.T. Conklin.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <machine/asm.h>
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| d0 msw
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| d1 lsw
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| d2 shift
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| d3 offset (32 - shift)
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ENTRY(__lshrdi3)
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link %a6,#0
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moveml %d2-%d4,%sp@-
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movel %a6@(8),%d0
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movel %a6@(12),%d1
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movel %a6@(16),%d2
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moveq #32,%d3
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subl %d2,%d3
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jgt L2
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negl %d3
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movel %d0,%d1
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lsrl %d3,%d1
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clrl %d0
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jra L3
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L2: lsrl %d2,%d1
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movel %d0,%d4
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asll %d3,%d4
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orl %d4,%d1
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lsrl %d2,%d0
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L3: moveml %a6@(-12),%d2-%d4
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unlk %a6
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rts
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