| 1 | #ifndef __ASM_SH_STRING_H
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| 2 | #define __ASM_SH_STRING_H
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| 3 |
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| 4 | |
| 5 | * Copyright (C) 1999 Niibe Yutaka
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| 6 | * But consider these trivial functions to be public domain.
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| 7 |
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| 8 |
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| 9 | #define __HAVE_ARCH_STRCPY
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| 10 | static __inline__ char *strcpy(char *__dest, const char *__src)
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| 11 | {
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| 12 | register char *__xdest = __dest;
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| 13 | unsigned long __dummy;
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| 14 |
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| 15 | __asm__ __volatile__("1:\n\t"
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| 16 | "mov.b @%1+, %2\n\t"
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| 17 | "mov.b %2, @%0\n\t"
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| 18 | "cmp/eq #0, %2\n\t"
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| 19 | "bf/s 1b\n\t"
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| 20 | " add #1, %0\n\t"
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| 21 | : "=r" (__dest), "=r" (__src), "=&z" (__dummy)
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| 22 | : "0" (__dest), "1" (__src)
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| 23 | : "memory", "t");
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| 24 |
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| 25 | return __xdest;
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| 26 | }
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| 27 |
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| 28 | #define __HAVE_ARCH_STRNCPY
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| 29 | static __inline__ char *strncpy(char *__dest, const char *__src, size_t __n)
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| 30 | {
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| 31 | register char *__xdest = __dest;
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| 32 | unsigned long __dummy;
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| 33 |
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| 34 | if (__n == 0)
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| 35 | return __xdest;
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| 36 |
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| 37 | __asm__ __volatile__(
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| 38 | "1:\n"
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| 39 | "mov.b @%1+, %2\n\t"
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| 40 | "mov.b %2, @%0\n\t"
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| 41 | "cmp/eq #0, %2\n\t"
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| 42 | "bt/s 2f\n\t"
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| 43 | " cmp/eq %5,%1\n\t"
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| 44 | "bf/s 1b\n\t"
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| 45 | " add #1, %0\n"
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| 46 | "2:"
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| 47 | : "=r" (__dest), "=r" (__src), "=&z" (__dummy)
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| 48 | : "0" (__dest), "1" (__src), "r" (__src+__n)
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| 49 | : "memory", "t");
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| 50 |
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| 51 | return __xdest;
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| 52 | }
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| 53 |
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| 54 | #define __HAVE_ARCH_STRCMP
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| 55 | static __inline__ int strcmp(const char *__cs, const char *__ct)
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| 56 | {
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| 57 | register int __res;
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| 58 | unsigned long __dummy;
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| 59 |
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| 60 | __asm__ __volatile__(
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| 61 | "mov.b @%1+, %3\n"
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| 62 | "1:\n\t"
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| 63 | "mov.b @%0+, %2\n\t"
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| 64 | "cmp/eq #0, %3\n\t"
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| 65 | "bt 2f\n\t"
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| 66 | "cmp/eq %2, %3\n\t"
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| 67 | "bt/s 1b\n\t"
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| 68 | " mov.b @%1+, %3\n\t"
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| 69 | "add #-2, %1\n\t"
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| 70 | "mov.b @%1, %3\n\t"
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| 71 | "sub %3, %2\n"
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| 72 | "2:"
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| 73 | : "=r" (__cs), "=r" (__ct), "=&r" (__res), "=&z" (__dummy)
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| 74 | : "0" (__cs), "1" (__ct)
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| 75 | : "t");
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| 76 |
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| 77 | return __res;
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| 78 | }
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| 79 |
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| 80 | #define __HAVE_ARCH_STRNCMP
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| 81 | static __inline__ int strncmp(const char *__cs, const char *__ct, size_t __n)
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| 82 | {
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| 83 | register int __res;
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| 84 | unsigned long __dummy;
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| 85 |
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| 86 | if (__n == 0)
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| 87 | return 0;
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| 88 |
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| 89 | __asm__ __volatile__(
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| 90 | "mov.b @%1+, %3\n"
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| 91 | "1:\n\t"
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| 92 | "mov.b @%0+, %2\n\t"
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| 93 | "cmp/eq %6, %0\n\t"
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| 94 | "bt/s 2f\n\t"
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| 95 | " cmp/eq #0, %3\n\t"
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| 96 | "bt/s 3f\n\t"
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| 97 | " cmp/eq %3, %2\n\t"
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| 98 | "bt/s 1b\n\t"
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| 99 | " mov.b @%1+, %3\n\t"
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| 100 | "add #-2, %1\n\t"
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| 101 | "mov.b @%1, %3\n"
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| 102 | "2:\n\t"
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| 103 | "sub %3, %2\n"
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| 104 | "3:"
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| 105 | :"=r" (__cs), "=r" (__ct), "=&r" (__res), "=&z" (__dummy)
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| 106 | : "0" (__cs), "1" (__ct), "r" (__cs+__n)
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| 107 | : "t");
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| 108 |
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| 109 | return __res;
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| 110 | }
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| 111 |
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| 112 | #define __HAVE_ARCH_MEMSET
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| 113 | extern void *memset(void *__s, int __c, size_t __count);
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| 114 |
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| 115 | #define __HAVE_ARCH_MEMCPY
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| 116 | extern void *memcpy(void *__to, __const__ void *__from, size_t __n);
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| 117 |
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| 118 | #define __HAVE_ARCH_MEMMOVE
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| 119 | extern void *memmove(void *__dest, __const__ void *__src, size_t __n);
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| 120 |
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| 121 | #define __HAVE_ARCH_MEMCHR
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| 122 | extern void *memchr(const void *__s, int __c, size_t __n);
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| 123 |
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| 124 | #define __HAVE_ARCH_STRLEN
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| 125 | extern size_t strlen(const char *);
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| 126 |
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| 127 | #endif
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