blob: 55f8db6bc1d75b1604e7493ab19c6b73ae601c7f [file] [log] [blame]
Paul Mundt7960a1d2007-11-09 13:00:30 +09001#ifndef __ASM_SH_STRING_H
2#define __ASM_SH_STRING_H
3
4#ifdef __KERNEL__
5
6/*
7 * Copyright (C) 1999 Niibe Yutaka
8 * But consider these trivial functions to be public domain.
9 */
10
11#define __HAVE_ARCH_STRCPY
12static inline char *strcpy(char *__dest, const char *__src)
13{
14 register char *__xdest = __dest;
15 unsigned long __dummy;
16
17 __asm__ __volatile__("1:\n\t"
18 "mov.b @%1+, %2\n\t"
19 "mov.b %2, @%0\n\t"
20 "cmp/eq #0, %2\n\t"
21 "bf/s 1b\n\t"
22 " add #1, %0\n\t"
23 : "=r" (__dest), "=r" (__src), "=&z" (__dummy)
24 : "0" (__dest), "1" (__src)
25 : "memory", "t");
26
27 return __xdest;
28}
29
30#define __HAVE_ARCH_STRNCPY
31static inline char *strncpy(char *__dest, const char *__src, size_t __n)
32{
33 register char *__xdest = __dest;
34 unsigned long __dummy;
35
36 if (__n == 0)
37 return __xdest;
38
39 __asm__ __volatile__(
40 "1:\n"
41 "mov.b @%1+, %2\n\t"
42 "mov.b %2, @%0\n\t"
43 "cmp/eq #0, %2\n\t"
44 "bt/s 2f\n\t"
45 " cmp/eq %5,%1\n\t"
46 "bf/s 1b\n\t"
47 " add #1, %0\n"
48 "2:"
49 : "=r" (__dest), "=r" (__src), "=&z" (__dummy)
50 : "0" (__dest), "1" (__src), "r" (__src+__n)
51 : "memory", "t");
52
53 return __xdest;
54}
55
56#define __HAVE_ARCH_STRCMP
57static inline int strcmp(const char *__cs, const char *__ct)
58{
59 register int __res;
60 unsigned long __dummy;
61
62 __asm__ __volatile__(
63 "mov.b @%1+, %3\n"
64 "1:\n\t"
65 "mov.b @%0+, %2\n\t"
66 "cmp/eq #0, %3\n\t"
67 "bt 2f\n\t"
68 "cmp/eq %2, %3\n\t"
69 "bt/s 1b\n\t"
70 " mov.b @%1+, %3\n\t"
71 "add #-2, %1\n\t"
72 "mov.b @%1, %3\n\t"
73 "sub %3, %2\n"
74 "2:"
75 : "=r" (__cs), "=r" (__ct), "=&r" (__res), "=&z" (__dummy)
76 : "0" (__cs), "1" (__ct)
77 : "t");
78
79 return __res;
80}
81
82#define __HAVE_ARCH_STRNCMP
83static inline int strncmp(const char *__cs, const char *__ct, size_t __n)
84{
85 register int __res;
86 unsigned long __dummy;
87
88 if (__n == 0)
89 return 0;
90
91 __asm__ __volatile__(
92 "mov.b @%1+, %3\n"
93 "1:\n\t"
94 "mov.b @%0+, %2\n\t"
95 "cmp/eq %6, %0\n\t"
96 "bt/s 2f\n\t"
97 " cmp/eq #0, %3\n\t"
98 "bt/s 3f\n\t"
99 " cmp/eq %3, %2\n\t"
100 "bt/s 1b\n\t"
101 " mov.b @%1+, %3\n\t"
102 "add #-2, %1\n\t"
103 "mov.b @%1, %3\n"
104 "2:\n\t"
105 "sub %3, %2\n"
106 "3:"
107 :"=r" (__cs), "=r" (__ct), "=&r" (__res), "=&z" (__dummy)
108 : "0" (__cs), "1" (__ct), "r" (__cs+__n)
109 : "t");
110
111 return __res;
112}
113
114#define __HAVE_ARCH_MEMSET
115extern void *memset(void *__s, int __c, size_t __count);
116
117#define __HAVE_ARCH_MEMCPY
118extern void *memcpy(void *__to, __const__ void *__from, size_t __n);
119
120#define __HAVE_ARCH_MEMMOVE
121extern void *memmove(void *__dest, __const__ void *__src, size_t __n);
122
123#define __HAVE_ARCH_MEMCHR
124extern void *memchr(const void *__s, int __c, size_t __n);
125
126#define __HAVE_ARCH_STRLEN
127extern size_t strlen(const char *);
128
129#endif /* __KERNEL__ */
130
131#endif /* __ASM_SH_STRING_H */