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86 lines
3.0 KiB
C
86 lines
3.0 KiB
C
/**
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* @file
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*
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* @ingroup rtems_bsd_machine
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*
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* @brief TODO.
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*/
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/*
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* Copyright (c) 2009-2012 embedded brains GmbH. All rights reserved.
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*
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* embedded brains GmbH
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* Obere Lagerstr. 30
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* 82178 Puchheim
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* Germany
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* <rtems@embedded-brains.de>
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*
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* Copyright (c) 1987, 1991, 1993
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* The Regents of the University of California. 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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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _RTEMS_BSD_MACHINE_ENDIAN_H
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#define _RTEMS_BSD_MACHINE_ENDIAN_H
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#ifndef _RTEMS_BSD_MACHINE_RTEMS_BSD_CONFIG_H_
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#error "the header file <freebsd/machine/rtems-bsd-config.h> must be included first"
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#endif
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#include <rtems/endian.h>
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#define _LITTLE_ENDIAN 1234 /* LSB first: i386, vax */
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#define _BIG_ENDIAN 4321 /* MSB first: 68000, ibm, net */
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#define _PDP_ENDIAN 3412 /* LSB first in word, MSW first in long */
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#if CPU_BIG_ENDIAN
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# define _BYTE_ORDER _BIG_ENDIAN
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#elif CPU_LITTLE_ENDIAN
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# define _BYTE_ORDER _LITTLE_ENDIAN
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#else
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# error "undefined endian"
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#endif
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#define __bswap16(x) CPU_swap_u16(x)
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#define __bswap32(x) CPU_swap_u32(x)
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#define __htonl(x) __bswap32(x)
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#define __htons(x) __bswap16(x)
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#define __ntohl(x) __bswap32(x)
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#define __ntohs(x) __bswap16(x)
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static __inline uint64_t
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__bswap64(uint64_t _x)
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{
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return ((_x >> 56) | ((_x >> 40) & 0xff00) | ((_x >> 24) & 0xff0000) |
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((_x >> 8) & 0xff000000) | ((_x << 8) & ((uint64_t)0xff << 32)) |
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((_x << 24) & ((uint64_t)0xff << 40)) |
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((_x << 40) & ((uint64_t)0xff << 48)) | ((_x << 56)));
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}
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#endif /* _RTEMS_BSD_MACHINE_ENDIAN_H */
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