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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 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 | #ifndef _S390_BYTEORDER_H #define _S390_BYTEORDER_H /* * include/asm-s390/byteorder.h * * S390 version * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) */ #include <asm/types.h> #ifdef __GNUC__ static __inline__ __const__ __u32 ___arch__swab32(__u32 x) { __u32 temp; __asm__ __volatile__ ( " st %0,0(%1)\n" " icm %0,8,3(%1)\n" " icm %0,4,2(%1)\n" " icm %0,2,1(%1)\n" " ic %0,0(%1)" : "+&d" (x) : "a" (&temp) : "cc" ); return x; } static __inline__ __const__ __u32 ___arch__swab32p(__u32 *x) { __u32 result; __asm__ __volatile__ ( " icm %0,8,3(%1)\n" " icm %0,4,2(%1)\n" " icm %0,2,1(%1)\n" " ic %0,0(%1)" : "=&d" (result) : "a" (x) : "cc" ); return result; } static __inline__ void ___arch__swab32s(__u32 *x) { __asm__ __volatile__ ( " icm 0,8,3(%0)\n" " icm 0,4,2(%0)\n" " icm 0,2,1(%0)\n" " ic 0,0(%0)\n" " st 0,0(%0)" : : "a" (x) : "0", "memory", "cc"); } static __inline__ __const__ __u16 ___arch__swab16(__u16 x) { __u16 temp; __asm__ __volatile__ ( " sth %0,0(%1)\n" " icm %0,2,1(%1)\n" " ic %0,0(%1)\n" : "+&d" (x) : "a" (&temp) : "memory", "cc" ); return x; } static __inline__ __const__ __u16 ___arch__swab16p(__u16 *x) { __u16 result; __asm__ __volatile__ ( " sr %0,%0\n" " icm %0,2,1(%1)\n" " ic %0,0(%1)\n" : "=&d" (result) : "a" (x) : "cc" ); return result; } static __inline__ void ___arch__swab16s(__u16 *x) { __asm__ __volatile__( " icm 0,2,1(%0)\n" " ic 0,0(%0)\n" " sth 0,0(%0)" : : "a" (x) : "0", "memory", "cc" ); } #define __arch__swab32(x) ___arch__swab32(x) #define __arch__swab16(x) ___arch__swab16(x) #define __arch__swab32p(x) ___arch__swab32p(x) #define __arch__swab16p(x) ___arch__swab16p(x) #define __arch__swab32s(x) ___arch__swab32s(x) #define __arch__swab16s(x) ___arch__swab16s(x) #if !defined(__STRICT_ANSI__) || defined(__KERNEL__) # define __BYTEORDER_HAS_U64__ # define __SWAB_64_THRU_32__ #endif #endif /* __GNUC__ */ #include <linux/byteorder/big_endian.h> #endif /* _S390_BYTEORDER_H */ |