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#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_ */
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