mirror of https://gitee.com/openkylin/linux.git
49 lines
1.1 KiB
C
49 lines
1.1 KiB
C
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#ifndef _BLACKFIN_BYTEORDER_H
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#define _BLACKFIN_BYTEORDER_H
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#include <asm/types.h>
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#include <linux/compiler.h>
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#ifdef __GNUC__
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static __inline__ __attribute_const__ __u32 ___arch__swahb32(__u32 xx)
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{
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__u32 tmp;
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__asm__("%1 = %0 >> 8 (V);\n\t"
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"%0 = %0 << 8 (V);\n\t"
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"%0 = %0 | %1;\n\t"
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: "+d"(xx), "=&d"(tmp));
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return xx;
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}
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static __inline__ __attribute_const__ __u32 ___arch__swahw32(__u32 xx)
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{
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__u32 rv;
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__asm__("%0 = PACK(%1.L, %1.H);\n\t": "=d"(rv): "d"(xx));
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return rv;
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}
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#define __arch__swahb32(x) ___arch__swahb32(x)
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#define __arch__swahw32(x) ___arch__swahw32(x)
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#define __arch__swab32(x) ___arch__swahb32(___arch__swahw32(x))
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static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 xx)
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{
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__u32 xw = xx;
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__asm__("%0 <<= 8;\n %0.L = %0.L + %0.H (NS);\n": "+d"(xw));
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return (__u16)xw;
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}
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#define __arch__swab16(x) ___arch__swab16(x)
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#endif
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#if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__)
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# define __BYTEORDER_HAS_U64__
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# define __SWAB_64_THRU_32__
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#endif
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#include <linux/byteorder/little_endian.h>
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#endif /* _BLACKFIN_BYTEORDER_H */
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