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| Filename | /usr/src/linux-headers-3.13.0-24/arch/sh/include/uapi/asm/swab.h |
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| Create time | 27-Apr-2025 09:50 |
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#ifndef __ASM_SH_SWAB_H
#define __ASM_SH_SWAB_H
/*
* Copyright (C) 1999 Niibe Yutaka
* Copyright (C) 2000, 2001 Paolo Alberelli
*/
#include <linux/compiler.h>
#include <linux/types.h>
#include <asm-generic/swab.h>
static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
{
__asm__(
#ifdef __SH5__
"byterev %1, %0\n\t"
"shari %0, 32, %0"
#else
"swap.b %1, %0\n\t"
"swap.w %0, %0\n\t"
"swap.b %0, %0"
#endif
: "=r" (x)
: "r" (x));
return x;
}
#define __arch_swab32 __arch_swab32
static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
{
__asm__(
#ifdef __SH5__
"byterev %1, %0\n\t"
"shari %0, 32, %0"
#else
"swap.b %1, %0"
#endif
: "=r" (x)
: "r" (x));
return x;
}
#define __arch_swab16 __arch_swab16
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 __arch_swab64
#endif /* __ASM_SH_SWAB_H */
#define __ASM_SH_SWAB_H
/*
* Copyright (C) 1999 Niibe Yutaka
* Copyright (C) 2000, 2001 Paolo Alberelli
*/
#include <linux/compiler.h>
#include <linux/types.h>
#include <asm-generic/swab.h>
static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
{
__asm__(
#ifdef __SH5__
"byterev %1, %0\n\t"
"shari %0, 32, %0"
#else
"swap.b %1, %0\n\t"
"swap.w %0, %0\n\t"
"swap.b %0, %0"
#endif
: "=r" (x)
: "r" (x));
return x;
}
#define __arch_swab32 __arch_swab32
static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
{
__asm__(
#ifdef __SH5__
"byterev %1, %0\n\t"
"shari %0, 32, %0"
#else
"swap.b %1, %0"
#endif
: "=r" (x)
: "r" (x));
return x;
}
#define __arch_swab16 __arch_swab16
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 __arch_swab64
#endif /* __ASM_SH_SWAB_H */