File: /usr/include/i386/endian.h

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       1: /*
       2:  * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
       3:  *
       4:  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
       5:  * 
       6:  * This file contains Original Code and/or Modifications of Original Code
       7:  * as defined in and that are subject to the Apple Public Source License
       8:  * Version 2.0 (the 'License'). You may not use this file except in
       9:  * compliance with the License. The rights granted to you under the License
      10:  * may not be used to create, or enable the creation or redistribution of,
      11:  * unlawful or unlicensed copies of an Apple operating system, or to
      12:  * circumvent, violate, or enable the circumvention or violation of, any
      13:  * terms of an Apple operating system software license agreement.
      14:  * 
      15:  * Please obtain a copy of the License at
      16:  * http://www.opensource.apple.com/apsl/ and read it before using this file.
      17:  * 
      18:  * The Original Code and all software distributed under the License are
      19:  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
      20:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
      21:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
      22:  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
      23:  * Please see the License for the specific language governing rights and
      24:  * limitations under the License.
      25:  * 
      26:  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
      27:  */
      28: /*
      29:  * Copyright 1995 NeXT Computer, Inc. All rights reserved.
      30:  */
      31: /*
      32:  * Copyright (c) 1987, 1991, 1993
      33:  *    The Regents of the University of California.  All rights reserved.
      34:  *
      35:  * Redistribution and use in source and binary forms, with or without
      36:  * modification, are permitted provided that the following conditions
      37:  * are met:
      38:  * 1. Redistributions of source code must retain the above copyright
      39:  *    notice, this list of conditions and the following disclaimer.
      40:  * 2. Redistributions in binary form must reproduce the above copyright
      41:  *    notice, this list of conditions and the following disclaimer in the
      42:  *    documentation and/or other materials provided with the distribution.
      43:  * 3. All advertising materials mentioning features or use of this software
      44:  *    must display the following acknowledgement:
      45:  *    This product includes software developed by the University of
      46:  *    California, Berkeley and its contributors.
      47:  * 4. Neither the name of the University nor the names of its contributors
      48:  *    may be used to endorse or promote products derived from this software
      49:  *    without specific prior written permission.
      50:  *
      51:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
      52:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      53:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      54:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
      55:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      56:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      57:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      58:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      59:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      60:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      61:  * SUCH DAMAGE.
      62:  *
      63:  *    @(#)endian.h    8.1 (Berkeley) 6/11/93
      64:  */
      65: 
      66: #ifndef _I386__ENDIAN_H_
      67: #define    _I386__ENDIAN_H_
      68: 
      69: #include <sys/cdefs.h>
      70: /*
      71:  * Define _NOQUAD if the compiler does NOT support 64-bit integers.
      72:  */
      73: /* #define _NOQUAD */
      74: 
      75: /*
      76:  * Define the order of 32-bit words in 64-bit words.
      77:  */
      78: #define _QUAD_HIGHWORD 1
      79: #define _QUAD_LOWWORD 0
      80: 
      81: /*
      82:  * Definitions for byte order, according to byte significance from low
      83:  * address to high.
      84:  */
      85: #define    __DARWIN_LITTLE_ENDIAN    1234    /* LSB first: i386, vax */
      86: #define    __DARWIN_BIG_ENDIAN    4321    /* MSB first: 68000, ibm, net */
      87: #define    __DARWIN_PDP_ENDIAN    3412    /* LSB first in word, MSW first in long */
      88: 
      89: #define    __DARWIN_BYTE_ORDER    __DARWIN_LITTLE_ENDIAN
      90: 
      91: #if    defined(KERNEL) || (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))
      92: 
      93: #define    LITTLE_ENDIAN    __DARWIN_LITTLE_ENDIAN
      94: #define    BIG_ENDIAN    __DARWIN_BIG_ENDIAN
      95: #define    PDP_ENDIAN    __DARWIN_PDP_ENDIAN
      96: 
      97: #define    BYTE_ORDER    __DARWIN_BYTE_ORDER
      98: 
      99: #include <sys/_endian.h>
     100: 
     101: #endif /* defined(KERNEL) || (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)) */
     102: #endif /* !_I386__ENDIAN_H_ */
     103: