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Move __bswap64()

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Add copyright notice of FreeBSD "sys/powerpc/include/endian.h".  Change
license to BSD.
This commit is contained in:
Sebastian Huber 2012-04-18 17:14:02 +02:00
parent 89466ac76f
commit 2f52893f70
2 changed files with 37 additions and 20 deletions
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16
freebsd/sys/endian.h
View File

@ -197,20 +197,4 @@ le64enc(void *pp, uint64_t u)
le32enc(p + 4, u >> 32);
}
/*
* In FreeBSD, this can be CPU specific but most targets use this
* implementation.
*
* This is from the powerpc implementation.
*/
static __inline uint64_t
__bswap64(uint64_t _x)
{
return ((_x >> 56) | ((_x >> 40) & 0xff00) | ((_x >> 24) & 0xff0000) |
((_x >> 8) & 0xff000000) | ((_x << 8) & ((__uint64_t)0xff << 32)) |
((_x << 24) & ((__uint64_t)0xff << 40)) |
((_x << 40) & ((__uint64_t)0xff << 48)) | ((_x << 56)));
}
#endif /* _SYS_ENDIAN_HH_ */

41
rtemsbsd/freebsd/machine/endian.h
View File

@ -7,7 +7,7 @@
*/
/*
* Copyright (c) 2009, 2010 embedded brains GmbH. All rights reserved.
* Copyright (c) 2009-2012 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Obere Lagerstr. 30
@ -15,9 +15,32 @@
* Germany
* <rtems@embedded-brains.de>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
* Copyright (c) 1987, 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* 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.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*/
#ifndef _RTEMS_BSD_MACHINE_ENDIAN_H
@ -45,4 +68,14 @@
#define __ntohl(x) __bswap32(x)
#define __ntohs(x) __bswap16(x)
static __inline uint64_t
__bswap64(uint64_t _x)
{
return ((_x >> 56) | ((_x >> 40) & 0xff00) | ((_x >> 24) & 0xff0000) |
((_x >> 8) & 0xff000000) | ((_x << 8) & ((uint64_t)0xff << 32)) |
((_x << 24) & ((uint64_t)0xff << 40)) |
((_x << 40) & ((uint64_t)0xff << 48)) | ((_x << 56)));
}
#endif /* _RTEMS_BSD_MACHINE_ENDIAN_H */