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

/*
 * Copyright (c) 1995 NeXT Computer, Inc. All rights reserved.
 * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The 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, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * 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) 6/10/93
 */

#ifndef _PPC_ENDIAN_H_
#define	_PPC_ENDIAN_H_

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

#if	defined(KERNEL) || !defined(_POSIX_SOURCE)
/*
 * Definitions for byte order, according to byte significance from low
 * address to high.
 */
#define	LITTLE_ENDIAN	1234	/* LSB first: i386, vax */
#define	BIG_ENDIAN	4321	/* MSB first: 68000, ibm, net, ppc */
#define	PDP_ENDIAN	3412	/* LSB first in word, MSW first in long */

#define	BYTE_ORDER	BIG_ENDIAN

#include <sys/cdefs.h>

#ifndef __ASSEMBLER__
__BEGIN_DECLS
unsigned long	htonl __P((unsigned long));
unsigned short	htons __P((unsigned short));
unsigned long	ntohl __P((unsigned long));
unsigned short	ntohs __P((unsigned short));
__END_DECLS
#endif /* __ASSEMBLER__ */

/*
 * Macros for network/external number representation conversion.
 */
#if BYTE_ORDER == BIG_ENDIAN && !defined(lint)
#define	ntohl(x)	(x)
#define	ntohs(x)	(x)
#define	htonl(x)	(x)
#define	htons(x)	(x)

#define	NTOHL(x)	(x)
#define	NTOHS(x)	(x)
#define	HTONL(x)	(x)
#define	HTONS(x)	(x)

#else

#include <machine/byte_order.h>
 
#define ntohl(x)	NXSwapBigLongToHost(x)
#define ntohs(x)	NXSwapBigShortToHost(x)
#define htonl(x)	NXSwapHostLongToBig(x)
#define htons(x)	NXSwapHostShortToBig(x)

#define	NTOHL(x)	(x) = ntohl((u_long)x)
#define	NTOHS(x)	(x) = ntohs((u_short)x)
#define	HTONL(x)	(x) = htonl((u_long)x)
#define	HTONS(x)	(x) = htons((u_short)x)
#endif
#endif /* defined(KERNEL) || !defined(_POSIX_SOURCE) */
#endif /* !_PPC_ENDIAN_H_ */
Commit	Line	Data
1c79356b A	1	/*
1c79356b A	2	* Copyright (c) 1995 NeXT Computer, Inc. All rights reserved.
9bccf70c	3	* Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
1c79356b A	4	*
	5	* @APPLE_LICENSE_HEADER_START@
	6	*
d7e50217	7	* Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
1c79356b	8	*
d7e50217 A	9	* This file contains Original Code and/or Modifications of Original Code
	10	* as defined in and that are subject to the Apple Public Source License
	11	* Version 2.0 (the 'License'). You may not use this file except in
	12	* compliance with the License. Please obtain a copy of the License at
	13	* http://www.opensource.apple.com/apsl/ and read it before using this
	14	* file.
	15	*
	16	* The Original Code and all software distributed under the License are
	17	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	18	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	19	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
d7e50217 A	20	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	21	* Please see the License for the specific language governing rights and
	22	* limitations under the License.
1c79356b A	23	*
	24	* @APPLE_LICENSE_HEADER_END@
	25	*/
	26	/*
	27	* Copyright (c) 1987, 1991, 1993
	28	* The Regents of the University of California. All rights reserved.
	29	*
	30	* Redistribution and use in source and binary forms, with or without
	31	* modification, are permitted provided that the following conditions
	32	* are met:
	33	* 1. Redistributions of source code must retain the above copyright
	34	* notice, this list of conditions and the following disclaimer.
	35	* 2. Redistributions in binary form must reproduce the above copyright
	36	* notice, this list of conditions and the following disclaimer in the
	37	* documentation and/or other materials provided with the distribution.
	38	* 3. All advertising materials mentioning features or use of this software
	39	* must display the following acknowledgement:
	40	* This product includes software developed by the University of
	41	* California, Berkeley and its contributors.
	42	* 4. Neither the name of the University nor the names of its contributors
	43	* may be used to endorse or promote products derived from this software
	44	* without specific prior written permission.
	45	*
	46	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	47	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	48	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	49	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	50	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	51	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	52	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	53	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	54	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	55	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	56	* SUCH DAMAGE.
	57	*
	58	* @(#)endian.h 8.1 (Berkeley) 6/10/93
	59	*/
	60
	61	#ifndef _PPC_ENDIAN_H_
	62	#define _PPC_ENDIAN_H_
	63
	64	/*
	65	* Define the order of 32-bit words in 64-bit words.
	66	*/
	67	#define _QUAD_HIGHWORD 0
	68	#define _QUAD_LOWWORD 1
	69
	70	#if defined(KERNEL) \|\| !defined(_POSIX_SOURCE)
	71	/*
	72	* Definitions for byte order, according to byte significance from low
	73	* address to high.
	74	*/
	75	#define LITTLE_ENDIAN 1234 /* LSB first: i386, vax */
	76	#define BIG_ENDIAN 4321 /* MSB first: 68000, ibm, net, ppc */
	77	#define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long */
	78
	79	#define BYTE_ORDER BIG_ENDIAN
	80
	81	#include <sys/cdefs.h>
	82
	83	#ifndef __ASSEMBLER__
	84	__BEGIN_DECLS
	85	unsigned long htonl __P((unsigned long));
	86	unsigned short htons __P((unsigned short));
87	unsigned long ntohl __P((unsigned long));
88	unsigned short ntohs __P((unsigned short));
89	__END_DECLS
90	#endif /* __ASSEMBLER__ */
91
92	/*
93	* Macros for network/external number representation conversion.
94	*/
95	#if BYTE_ORDER == BIG_ENDIAN && !defined(lint)
96	#define ntohl(x) (x)
97	#define ntohs(x) (x)
98	#define htonl(x) (x)
99	#define htons(x) (x)
100
101	#define NTOHL(x) (x)
102	#define NTOHS(x) (x)
103	#define HTONL(x) (x)
104	#define HTONS(x) (x)
105
106	#else
107
108	#include <machine/byte_order.h>
109
110	#define ntohl(x) NXSwapBigLongToHost(x)
111	#define ntohs(x) NXSwapBigShortToHost(x)
112	#define htonl(x) NXSwapHostLongToBig(x)
113	#define htons(x) NXSwapHostShortToBig(x)
114
115	#define NTOHL(x) (x) = ntohl((u_long)x)
116	#define NTOHS(x) (x) = ntohs((u_short)x)
117	#define HTONL(x) (x) = htonl((u_long)x)
118	#define HTONS(x) (x) = htons((u_short)x)
119	#endif
120	#endif /* defined(KERNEL) \|\| !defined(_POSIX_SOURCE) */
121	#endif /* !_PPC_ENDIAN_H_ */