#ifndef _M68K_STRING_H_ #define _M68K_STRING_H_ #include <asm/setup.h> #include <asm/page.h> #define __HAVE_ARCH_STRCPY static inline char * strcpy(char * dest,const char *src) { char *xdest = dest; __asm__ __volatile__ ("1:\tmoveb %1@+,%0@+\n\t" "jne 1b" : "=a" (dest), "=a" (src) : "0" (dest), "1" (src) : "memory"); return xdest; } #define __HAVE_ARCH_STRNCPY static inline char * strncpy(char *dest, const char *src, size_t n) { char *xdest = dest; if (n == 0) return xdest; __asm__ __volatile__ ("1:\tmoveb %1@+,%0@+\n\t" "jeq 2f\n\t" "subql #1,%2\n\t" "jne 1b\n\t" "2:" : "=a" (dest), "=a" (src), "=d" (n) : "0" (dest), "1" (src), "2" (n) : "memory"); return xdest; } #define __HAVE_ARCH_STRCAT static inline char * strcat(char * dest, const char * src) { char *tmp = dest; while (*dest) dest++; while ((*dest++ = *src++)) ; return tmp; } #define __HAVE_ARCH_STRNCAT static inline char * strncat(char *dest, const char *src, size_t count) { char *tmp = dest; if (count) { while (*dest) dest++; while ((*dest++ = *src++)) { if (--count == 0) { *dest++='\0'; break; } } } return tmp; } #define __HAVE_ARCH_STRCHR static inline char * strchr(const char * s, int c) { const char ch = c; for(; *s != ch; ++s) if (*s == '\0') return( NULL ); return( (char *) s); } /* strstr !! */ #define __HAVE_ARCH_STRLEN static inline size_t strlen(const char * s) { const char *sc; for (sc = s; *sc != '\0'; ++sc) ; return(sc - s); } /* strnlen !! */ #define __HAVE_ARCH_STRCMP static inline int strcmp(const char * cs,const char * ct) { char __res; __asm__ ("1:\tmoveb %0@+,%2\n\t" /* get *cs */ "cmpb %1@+,%2\n\t" /* compare a byte */ "jne 2f\n\t" /* not equal, break out */ "tstb %2\n\t" /* at end of cs? */ "jne 1b\n\t" /* no, keep going */ "jra 3f\n\t" /* strings are equal */ "2:\tsubb %1@-,%2\n\t" /* *cs - *ct */ "3:" : "=a" (cs), "=a" (ct), "=d" (__res) : "0" (cs), "1" (ct)); return __res; } #define __HAVE_ARCH_STRNCMP static inline int strncmp(const char * cs,const char * ct,size_t count) { char __res; if (!count) return 0; __asm__ ("1:\tmovb %0@+,%3\n\t" /* get *cs */ "cmpb %1@+,%3\n\t" /* compare a byte */ "jne 3f\n\t" /* not equal, break out */ "tstb %3\n\t" /* at end of cs? */ "jeq 4f\n\t" /* yes, all done */ "subql #1,%2\n\t" /* no, adjust count */ "jne 1b\n\t" /* more to do, keep going */ "2:\tmoveq #0,%3\n\t" /* strings are equal */ "jra 4f\n\t" "3:\tsubb %1@-,%3\n\t" /* *cs - *ct */ "4:" : "=a" (cs), "=a" (ct), "=d" (count), "=d" (__res) : "0" (cs), "1" (ct), "2" (count)); return __res; } #define __HAVE_ARCH_MEMSET extern void *memset(void *, int, __kernel_size_t); #define memset(d, c, n) __builtin_memset(d, c, n) #define __HAVE_ARCH_MEMCPY extern void *memcpy(void *, const void *, __kernel_size_t); #define memcpy(d, s, n) __builtin_memcpy(d, s, n) #define __HAVE_ARCH_MEMMOVE extern void *memmove(void *, const void *, __kernel_size_t); #define __HAVE_ARCH_MEMCMP extern int memcmp(const void *, const void *, __kernel_size_t); #define memcmp(d, s, n) __builtin_memcmp(d, s, n) #endif /* _M68K_STRING_H_ */