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1da177e4 LT |
1 | #ifndef _M68KNOMMU_STRING_H_ |
2 | #define _M68KNOMMU_STRING_H_ | |
3 | ||
4 | #ifdef __KERNEL__ /* only set these up for kernel code */ | |
5 | ||
6 | #include <asm/setup.h> | |
7 | #include <asm/page.h> | |
8 | ||
9 | #define __HAVE_ARCH_STRCPY | |
10 | static inline char * strcpy(char * dest,const char *src) | |
11 | { | |
12 | char *xdest = dest; | |
13 | ||
14 | __asm__ __volatile__ | |
15 | ("1:\tmoveb %1@+,%0@+\n\t" | |
16 | "jne 1b" | |
17 | : "=a" (dest), "=a" (src) | |
18 | : "0" (dest), "1" (src) : "memory"); | |
19 | return xdest; | |
20 | } | |
21 | ||
22 | #define __HAVE_ARCH_STRNCPY | |
23 | static inline char * strncpy(char *dest, const char *src, size_t n) | |
24 | { | |
25 | char *xdest = dest; | |
26 | ||
27 | if (n == 0) | |
28 | return xdest; | |
29 | ||
30 | __asm__ __volatile__ | |
31 | ("1:\tmoveb %1@+,%0@+\n\t" | |
32 | "jeq 2f\n\t" | |
33 | "subql #1,%2\n\t" | |
34 | "jne 1b\n\t" | |
35 | "2:" | |
36 | : "=a" (dest), "=a" (src), "=d" (n) | |
37 | : "0" (dest), "1" (src), "2" (n) | |
38 | : "memory"); | |
39 | return xdest; | |
40 | } | |
41 | ||
42 | ||
43 | #ifndef CONFIG_COLDFIRE | |
44 | ||
45 | #define __HAVE_ARCH_STRCMP | |
46 | static inline int strcmp(const char * cs,const char * ct) | |
47 | { | |
48 | char __res; | |
49 | ||
50 | __asm__ | |
51 | ("1:\tmoveb %0@+,%2\n\t" /* get *cs */ | |
52 | "cmpb %1@+,%2\n\t" /* compare a byte */ | |
53 | "jne 2f\n\t" /* not equal, break out */ | |
54 | "tstb %2\n\t" /* at end of cs? */ | |
55 | "jne 1b\n\t" /* no, keep going */ | |
56 | "jra 3f\n\t" /* strings are equal */ | |
57 | "2:\tsubb %1@-,%2\n\t" /* *cs - *ct */ | |
58 | "3:" | |
59 | : "=a" (cs), "=a" (ct), "=d" (__res) | |
60 | : "0" (cs), "1" (ct)); | |
61 | ||
62 | return __res; | |
63 | } | |
64 | ||
65 | #define __HAVE_ARCH_STRNCMP | |
66 | static inline int strncmp(const char * cs,const char * ct,size_t count) | |
67 | { | |
68 | char __res; | |
69 | ||
70 | if (!count) | |
71 | return 0; | |
72 | __asm__ | |
73 | ("1:\tmovb %0@+,%3\n\t" /* get *cs */ | |
74 | "cmpb %1@+,%3\n\t" /* compare a byte */ | |
75 | "jne 3f\n\t" /* not equal, break out */ | |
76 | "tstb %3\n\t" /* at end of cs? */ | |
77 | "jeq 4f\n\t" /* yes, all done */ | |
78 | "subql #1,%2\n\t" /* no, adjust count */ | |
79 | "jne 1b\n\t" /* more to do, keep going */ | |
80 | "2:\tmoveq #0,%3\n\t" /* strings are equal */ | |
81 | "jra 4f\n\t" | |
82 | "3:\tsubb %1@-,%3\n\t" /* *cs - *ct */ | |
83 | "4:" | |
84 | : "=a" (cs), "=a" (ct), "=d" (count), "=d" (__res) | |
85 | : "0" (cs), "1" (ct), "2" (count)); | |
86 | return __res; | |
87 | } | |
88 | ||
89 | #endif /* CONFIG_COLDFIRE */ | |
90 | ||
91 | #define __HAVE_ARCH_MEMSET | |
92 | extern void * memset(void * s, int c, size_t count); | |
93 | ||
94 | #define __HAVE_ARCH_MEMCPY | |
95 | extern void * memcpy(void *d, const void *s, size_t count); | |
96 | ||
97 | #else /* KERNEL */ | |
98 | ||
99 | /* | |
100 | * let user libraries deal with these, | |
101 | * IMHO the kernel has no place defining these functions for user apps | |
102 | */ | |
103 | ||
104 | #define __HAVE_ARCH_STRCPY 1 | |
105 | #define __HAVE_ARCH_STRNCPY 1 | |
106 | #define __HAVE_ARCH_STRCAT 1 | |
107 | #define __HAVE_ARCH_STRNCAT 1 | |
108 | #define __HAVE_ARCH_STRCMP 1 | |
109 | #define __HAVE_ARCH_STRNCMP 1 | |
110 | #define __HAVE_ARCH_STRNICMP 1 | |
111 | #define __HAVE_ARCH_STRCHR 1 | |
112 | #define __HAVE_ARCH_STRRCHR 1 | |
113 | #define __HAVE_ARCH_STRSTR 1 | |
114 | #define __HAVE_ARCH_STRLEN 1 | |
115 | #define __HAVE_ARCH_STRNLEN 1 | |
116 | #define __HAVE_ARCH_MEMSET 1 | |
117 | #define __HAVE_ARCH_MEMCPY 1 | |
118 | #define __HAVE_ARCH_MEMMOVE 1 | |
119 | #define __HAVE_ARCH_MEMSCAN 1 | |
120 | #define __HAVE_ARCH_MEMCMP 1 | |
121 | #define __HAVE_ARCH_MEMCHR 1 | |
122 | #define __HAVE_ARCH_STRTOK 1 | |
123 | ||
124 | #endif /* KERNEL */ | |
125 | ||
126 | #endif /* _M68K_STRING_H_ */ |