1#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 */
132