blob: 69a051b612bd2dfaaa107eccd838804f05c749bb (
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
|
#ifndef _BLACKFIN_SWAB_H
#define _BLACKFIN_SWAB_H
#include <asm/types.h>
#include <linux/compiler.h>
#if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__)
# define __SWAB_64_THRU_32__
#endif
#ifdef __GNUC__
static __inline__ __attribute_const__ __u32 __arch_swahb32(__u32 xx)
{
__u32 tmp;
__asm__("%1 = %0 >> 8 (V);\n\t"
"%0 = %0 << 8 (V);\n\t"
"%0 = %0 | %1;\n\t"
: "+d"(xx), "=&d"(tmp));
return xx;
}
#define __arch_swahb32 __arch_swahb32
static __inline__ __attribute_const__ __u32 __arch_swahw32(__u32 xx)
{
__u32 rv;
__asm__("%0 = PACK(%1.L, %1.H);\n\t": "=d"(rv): "d"(xx));
return rv;
}
#define __arch_swahw32 __arch_swahw32
static __inline__ __attribute_const__ __u32 __arch_swab32(__u32 xx)
{
return __arch_swahb32(__arch_swahw32(xx));
}
#define __arch_swab32 __arch_swab32
static __inline__ __attribute_const__ __u16 __arch_swab16(__u16 xx)
{
__u32 xw = xx;
__asm__("%0 <<= 8;\n %0.L = %0.L + %0.H (NS);\n": "+d"(xw));
return (__u16)xw;
}
#define __arch_swab16 __arch_swab16
#endif /* __GNUC__ */
#endif /* _BLACKFIN_SWAB_H */
|
