[apple/xnu.git] / bsd / i386 / endian.h

/*
 * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * Copyright 1995 NeXT Computer, Inc. All rights reserved.
 */
/*
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 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.
 *
 *	@(#)endian.h	8.1 (Berkeley) 6/11/93
 */

#ifndef _I386__ENDIAN_H_
#define	_I386__ENDIAN_H_

/*
 * Define _NOQUAD if the compiler does NOT support 64-bit integers.
 */
/* #define _NOQUAD */

/*
 * Define the order of 32-bit words in 64-bit words.
 */
#define _QUAD_HIGHWORD 1
#define _QUAD_LOWWORD 0

/*
 * Definitions for byte order, according to byte significance from low
 * address to high.
 */
#define	__DARWIN_LITTLE_ENDIAN	1234	/* LSB first: i386, vax */
#define	__DARWIN_BIG_ENDIAN	4321	/* MSB first: 68000, ibm, net */
#define	__DARWIN_PDP_ENDIAN	3412	/* LSB first in word, MSW first in long */

#define	__DARWIN_BYTE_ORDER	__DARWIN_LITTLE_ENDIAN

#if	defined(KERNEL) || !defined(_POSIX_C_SOURCE)

#define	LITTLE_ENDIAN	__DARWIN_LITTLE_ENDIAN
#define	BIG_ENDIAN	__DARWIN_BIG_ENDIAN
#define	PDP_ENDIAN	__DARWIN_PDP_ENDIAN

#define	BYTE_ORDER	__DARWIN_BYTE_ORDER

#include <sys/_endian.h>

#endif /* defined(KERNEL) || !defined(_POSIX_C_SOURCE) */
#endif /* !_I386__ENDIAN_H_ */
Commit	Line	Data
1c79356b	1	/*
9bccf70c	2	* Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
1c79356b A	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
37839358 A	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
1c79356b	11	*
37839358 A	12	* This Original Code and all software distributed under the License are
37839358 A	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
37839358 A	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
1c79356b A	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/*
	23	* Copyright 1995 NeXT Computer, Inc. All rights reserved.
	24	*/
	25	/*
	26	* Copyright (c) 1987, 1991, 1993
	27	* The Regents of the University of California. All rights reserved.
	28	*
	29	* Redistribution and use in source and binary forms, with or without
	30	* modification, are permitted provided that the following conditions
	31	* are met:
	32	* 1. Redistributions of source code must retain the above copyright
	33	* notice, this list of conditions and the following disclaimer.
	34	* 2. Redistributions in binary form must reproduce the above copyright
	35	* notice, this list of conditions and the following disclaimer in the
	36	* documentation and/or other materials provided with the distribution.
	37	* 3. All advertising materials mentioning features or use of this software
	38	* must display the following acknowledgement:
	39	* This product includes software developed by the University of
	40	* California, Berkeley and its contributors.
	41	* 4. Neither the name of the University nor the names of its contributors
	42	* may be used to endorse or promote products derived from this software
	43	* without specific prior written permission.
	44	*
	45	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	46	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	47	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	48	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	49	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	50	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	51	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	52	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	53	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	54	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	55	* SUCH DAMAGE.
	56	*
	57	* @(#)endian.h 8.1 (Berkeley) 6/11/93
	58	*/
	59
	60	#ifndef _I386__ENDIAN_H_
	61	#define _I386__ENDIAN_H_
	62
	63	/*
	64	* Define _NOQUAD if the compiler does NOT support 64-bit integers.
	65	*/
	66	/* #define _NOQUAD */
	67
	68	/*
	69	* Define the order of 32-bit words in 64-bit words.
	70	*/
	71	#define _QUAD_HIGHWORD 1
	72	#define _QUAD_LOWWORD 0
	73
1c79356b A	74	/*
	75	* Definitions for byte order, according to byte significance from low
	76	* address to high.
	77	*/
91447636 A	78	#define __DARWIN_LITTLE_ENDIAN 1234 /* LSB first: i386, vax */
	79	#define __DARWIN_BIG_ENDIAN 4321 /* MSB first: 68000, ibm, net */
	80	#define __DARWIN_PDP_ENDIAN 3412 /* LSB first in word, MSW first in long */
1c79356b	81
91447636	82	#define __DARWIN_BYTE_ORDER __DARWIN_LITTLE_ENDIAN
1c79356b	83
91447636	84	#if defined(KERNEL) \|\| !defined(_POSIX_C_SOURCE)
1c79356b	85
91447636 A	86	#define LITTLE_ENDIAN __DARWIN_LITTLE_ENDIAN
	87	#define BIG_ENDIAN __DARWIN_BIG_ENDIAN
	88	#define PDP_ENDIAN __DARWIN_PDP_ENDIAN
1c79356b	89
91447636	90	#define BYTE_ORDER __DARWIN_BYTE_ORDER
1c79356b	91
91447636	92	#include <sys/_endian.h>
1c79356b	93
91447636	94	#endif /* defined(KERNEL) \|\| !defined(_POSIX_C_SOURCE) */
1c79356b	95	#endif /* !_I386__ENDIAN_H_ */