11 static inline unsigned short ByteSwap16(unsigned short x
)
13 __asm("xchgb %b0,%h0" :
18 #define bswap_16(x) ByteSwap16(x)
20 static inline unsigned int ByteSwap32(unsigned int x
)
26 __asm("xchgb %b0,%h0\n"
34 #define bswap_32(x) ByteSwap32(x)
36 static inline unsigned long long int ByteSwap64(unsigned long long int x
)
38 register union { __extension__
uint64_t __ll
;
39 uint32_t __l
[2]; } __x
;
41 "=r"(__x
.__l
[0]),"=r"(__x
.__l
[1]):
42 "0"(bswap_32((unsigned long)x
)),"1"(bswap_32((unsigned long)(x
>>32))));
45 #define bswap_64(x) ByteSwap64(x)
47 #elif defined(ARCH_SH4)
49 static inline uint16_t ByteSwap16(uint16_t x
) {
50 __asm__("swap.b %0,%0":"=r"(x
):"0"(x
));
54 static inline uint32_t ByteSwap32(uint32_t x
) {
63 #define bswap_16(x) ByteSwap16(x)
64 #define bswap_32(x) ByteSwap32(x)
66 static inline uint64_t ByteSwap64(uint64_t x
)
75 r
.l
.h
= bswap_32 (x
>>32);
78 #define bswap_64(x) ByteSwap64(x)
82 #define bswap_16(x) (((x) & 0x00ff) << 8 | ((x) & 0xff00) >> 8)
85 // code from bits/byteswap.h (C) 1997, 1998 Free Software Foundation, Inc.
87 ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \
88 (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24))
90 static inline uint64_t ByteSwap64(uint64_t x
)
97 r
.l
[0] = bswap_32 (w
.l
[1]);
98 r
.l
[1] = bswap_32 (w
.l
[0]);
101 #define bswap_64(x) ByteSwap64(x)
103 #endif /* !ARCH_X86 */
105 #endif /* !HAVE_BYTESWAP_H */
107 // be2me ... BigEndian to MachineEndian
108 // le2me ... LittleEndian to MachineEndian
110 #ifdef WORDS_BIGENDIAN
111 #define be2me_16(x) (x)
112 #define be2me_32(x) (x)
113 #define be2me_64(x) (x)
114 #define le2me_16(x) bswap_16(x)
115 #define le2me_32(x) bswap_32(x)
116 #define le2me_64(x) bswap_64(x)
118 #define be2me_16(x) bswap_16(x)
119 #define be2me_32(x) bswap_32(x)
120 #define be2me_64(x) bswap_64(x)
121 #define le2me_16(x) (x)
122 #define le2me_32(x) (x)
123 #define le2me_64(x) (x)
126 #endif /* __BSWAP_H__ */