summaryrefslogtreecommitdiff
path: root/sys/arch/hppa/include/endian.h
blob: 892c8b1bd8e440781dca3e4c22cc4a62c5bfa9e1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
/*	$OpenBSD: endian.h,v 1.6 2001/06/29 06:13:14 mickey Exp $	*/

/*
 * Copyright (c) 1998-2000 Michael Shalayeff
 * 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 Michael Shalayeff.
 * 4. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 _MACHINE_ENDIAN_H_
#define	_MACHINE_ENDIAN_H_

#ifdef __GNUC__

#define __swap64md(x) ({					\
	u_int64_t __swap64md_x = (x);				\
								\
	(u_int64_t)__swap32md(__swap64md_x >> 32) |		\
	(u_int64_t)__swap32md(__swap64md_x & 0xffffffff) << 32;	\
})

#define	__swap32md(x) ({			\
	register u_int32_t __swap32md_x;	\
						\
	__asm  ("extru	%1, 7,8,%%r19\n\t"	\
		"shd	%1,%1,8,%0\n\t"		\
		"dep	%0,15,8,%0\n\t"		\
		"dep	%%r19,31,8,%0"		\
		: "=&r" (__swap32md_x)		\
		: "r" (x) : "r19");		\
	__swap32md_x;				\
})

#if 1
/*
 * Use generic C version because w/ asm inline below
 * gcc inserts extra "extru r,31,16,r" to convert
 * to 16 bit entity, which produces overhead we don't need.
 * Besides, gcc does swap16 same way by itself.
 */
#define	__swap16md(x)	__swap16gen(x)
#else
#define	__swap16md(x) ({			\
	register u_int16_t __swap16md_x;	\
						\
	__asm  ("extru	%1,23,8,%0\n\t"		\
		"dep	%1,23,8,%0"		\
	       : "=&r" (__swap16md_x) : "r" (x));\
	__swap16md_x;				\
})
#endif

/* Tell sys/endian.h we have MD variants of the swap macros.  */
#define MD_SWAP

#endif /* __GNUC__ */


#define	BYTE_ORDER	BIG_ENDIAN
#include <sys/endian.h>

#define	__STRICT_ALIGNMENT

#endif /* !_MACHINE_ENDIAN_H_ */