1#ifndef _PARISC_SWAB_H
2#define _PARISC_SWAB_H
3
4#include <linux/types.h>
5#include <linux/compiler.h>
6
7#define __SWAB_64_THRU_32__
8
9static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
10{
11 __asm__("dep %0, 15, 8, %0\n\t"
12 "shd %%r0, %0, 8, %0"
13 : "=r" (x)
14 : "0" (x));
15 return x;
16}
17#define __arch_swab16 __arch_swab16
18
19static inline __attribute_const__ __u32 __arch_swab24(__u32 x)
20{
21 __asm__("shd %0, %0, 8, %0\n\t"
22 "dep %0, 15, 8, %0\n\t"
23 "shd %%r0, %0, 8, %0"
24 : "=r" (x)
25 : "0" (x));
26 return x;
27}
28
29static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
30{
31 unsigned int temp;
32 __asm__("shd %0, %0, 16, %1\n\t"
33 "dep %1, 15, 8, %1\n\t"
34 "shd %0, %1, 8, %0"
35 : "=r" (x), "=&r" (temp)
36 : "0" (x));
37 return x;
38}
39#define __arch_swab32 __arch_swab32
40
41#if BITS_PER_LONG > 32
42
43
44
45
46
47
48
49
50
51
52static inline __attribute_const__ __u64 __arch_swab64(__u64 x)
53{
54 __u64 temp;
55 __asm__("permh,3210 %0, %0\n\t"
56 "hshl %0, 8, %1\n\t"
57 "hshr,u %0, 8, %0\n\t"
58 "or %1, %0, %0"
59 : "=r" (x), "=&r" (temp)
60 : "0" (x));
61 return x;
62}
63#define __arch_swab64 __arch_swab64
64#endif
65
66#endif
67