| #ifndef __ASM_SH_BYTEORDER_H | |
| #define __ASM_SH_BYTEORDER_H | |
| /* | |
| * Copyright (C) 1999 Niibe Yutaka | |
| * Copyright (C) 2000, 2001 Paolo Alberelli | |
| */ | |
| #include <linux/compiler.h> | |
| #include <linux/types.h> | |
| static inline __attribute_const__ __u32 ___arch__swab32(__u32 x) | |
| { | |
| __asm__( | |
| #ifdef __SH5__ | |
| "byterev %0, %0\n\t" | |
| "shari %0, 32, %0" | |
| #else | |
| "swap.b %0, %0\n\t" | |
| "swap.w %0, %0\n\t" | |
| "swap.b %0, %0" | |
| #endif | |
| : "=r" (x) | |
| : "0" (x)); | |
| return x; | |
| } | |
| static inline __attribute_const__ __u16 ___arch__swab16(__u16 x) | |
| { | |
| __asm__( | |
| #ifdef __SH5__ | |
| "byterev %0, %0\n\t" | |
| "shari %0, 32, %0" | |
| #else | |
| "swap.b %0, %0" | |
| #endif | |
| : "=r" (x) | |
| : "0" (x)); | |
| return x; | |
| } | |
| static inline __u64 ___arch__swab64(__u64 val) | |
| { | |
| union { | |
| struct { __u32 a,b; } s; | |
| __u64 u; | |
| } v, w; | |
| v.u = val; | |
| w.s.b = ___arch__swab32(v.s.a); | |
| w.s.a = ___arch__swab32(v.s.b); | |
| return w.u; | |
| } | |
| #define __arch__swab64(x) ___arch__swab64(x) | |
| #define __arch__swab32(x) ___arch__swab32(x) | |
| #define __arch__swab16(x) ___arch__swab16(x) | |
| #if !defined(__STRICT_ANSI__) || defined(__KERNEL__) | |
| # define __BYTEORDER_HAS_U64__ | |
| # define __SWAB_64_THRU_32__ | |
| #endif | |
| #ifdef __LITTLE_ENDIAN__ | |
| #include <linux/byteorder/little_endian.h> | |
| #else | |
| #include <linux/byteorder/big_endian.h> | |
| #endif | |
| #endif /* __ASM_SH_BYTEORDER_H */ |