2013-12-06 12:04:52 +01:00
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/* $NetBSD: bswap64.S,v 1.4 2013/07/18 22:42:50 matt Exp $ */
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2011-02-14 20:36:03 +01:00
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/*
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* Copyright (C) 1996 Scott Reynolds. All rights reserved.
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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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <machine/asm.h>
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ENTRY(bswap64)
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2013-12-06 12:04:52 +01:00
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movl 4(%sp),%d1
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movl 8(%sp),%d0
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#ifdef __mcfisac__
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byterev %d0
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byterev %d1
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#elif defined(__mcoldfire__)
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movl %d3,-(%sp)
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movl %d2,-(%sp)
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movl #0x00ff00ff, %d3
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movl %d0,%d2
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andl %d3,%d2
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lsll #8,%d2
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lsrl #8,%d0
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andl %d3,%d0
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orl %d2,%d0
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movl %d1,%d2
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andl %d3,%d2
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lsll #8,%d2
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lsrl #8,%d1
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andl %d3,%d1
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orl %d2,%d1
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movl (%sp)+,%d2
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movl (%sp)+,%d3
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#else
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2011-02-14 20:36:03 +01:00
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rolw #8,%d1
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rolw #8,%d0
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swap %d1
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swap %d0
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rolw #8,%d0
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rolw #8,%d1
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2013-12-06 12:04:52 +01:00
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#endif
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2011-02-14 20:36:03 +01:00
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rts
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2013-12-06 12:04:52 +01:00
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END(bswap64)
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