127 строки
3.2 KiB
C
127 строки
3.2 KiB
C
#ifndef _M68KNOMMU_STRING_H_
|
|
#define _M68KNOMMU_STRING_H_
|
|
|
|
#ifdef __KERNEL__ /* only set these up for kernel code */
|
|
|
|
#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;
|
|
}
|
|
|
|
|
|
#ifndef CONFIG_COLDFIRE
|
|
|
|
#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;
|
|
}
|
|
|
|
#endif /* CONFIG_COLDFIRE */
|
|
|
|
#define __HAVE_ARCH_MEMSET
|
|
extern void * memset(void * s, int c, size_t count);
|
|
|
|
#define __HAVE_ARCH_MEMCPY
|
|
extern void * memcpy(void *d, const void *s, size_t count);
|
|
|
|
#else /* KERNEL */
|
|
|
|
/*
|
|
* let user libraries deal with these,
|
|
* IMHO the kernel has no place defining these functions for user apps
|
|
*/
|
|
|
|
#define __HAVE_ARCH_STRCPY 1
|
|
#define __HAVE_ARCH_STRNCPY 1
|
|
#define __HAVE_ARCH_STRCAT 1
|
|
#define __HAVE_ARCH_STRNCAT 1
|
|
#define __HAVE_ARCH_STRCMP 1
|
|
#define __HAVE_ARCH_STRNCMP 1
|
|
#define __HAVE_ARCH_STRNICMP 1
|
|
#define __HAVE_ARCH_STRCHR 1
|
|
#define __HAVE_ARCH_STRRCHR 1
|
|
#define __HAVE_ARCH_STRSTR 1
|
|
#define __HAVE_ARCH_STRLEN 1
|
|
#define __HAVE_ARCH_STRNLEN 1
|
|
#define __HAVE_ARCH_MEMSET 1
|
|
#define __HAVE_ARCH_MEMCPY 1
|
|
#define __HAVE_ARCH_MEMMOVE 1
|
|
#define __HAVE_ARCH_MEMSCAN 1
|
|
#define __HAVE_ARCH_MEMCMP 1
|
|
#define __HAVE_ARCH_MEMCHR 1
|
|
#define __HAVE_ARCH_STRTOK 1
|
|
|
|
#endif /* KERNEL */
|
|
|
|
#endif /* _M68K_STRING_H_ */
|