[mirror_ubuntu-zesty-kernel.git] / include / asm-m68k / string.h

#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_ */
Commit	Line	Data
1da177e4 LT	1	#ifndef _M68K_STRING_H_
	2	#define _M68K_STRING_H_
	3
	4	#include <asm/setup.h>
	5	#include <asm/page.h>
	6
	7	#define __HAVE_ARCH_STRCPY
	8	static inline char * strcpy(char * dest,const char *src)
	9	{
	10	char *xdest = dest;
	11
	12	__asm__ __volatile__
	13	("1:\tmoveb %1@+,%0@+\n\t"
	14	"jne 1b"
	15	: "=a" (dest), "=a" (src)
	16	: "0" (dest), "1" (src) : "memory");
	17	return xdest;
	18	}
	19
	20	#define __HAVE_ARCH_STRNCPY
	21	static inline char * strncpy(char dest, const char src, size_t n)
	22	{
	23	char *xdest = dest;
	24
	25	if (n == 0)
	26	return xdest;
	27
	28	__asm__ __volatile__
	29	("1:\tmoveb %1@+,%0@+\n\t"
	30	"jeq 2f\n\t"
	31	"subql #1,%2\n\t"
	32	"jne 1b\n\t"
	33	"2:"
	34	: "=a" (dest), "=a" (src), "=d" (n)
	35	: "0" (dest), "1" (src), "2" (n)
	36	: "memory");
	37	return xdest;
	38	}
	39
	40	#define __HAVE_ARCH_STRCAT
	41	static inline char * strcat(char * dest, const char * src)
	42	{
	43	char *tmp = dest;
	44
	45	while (*dest)
	46	dest++;
	47	while ((dest++ = src++))
	48	;
	49
	50	return tmp;
	51	}
	52
	53	#define __HAVE_ARCH_STRNCAT
	54	static inline char * strncat(char dest, const char src, size_t count)
	55	{
	56	char *tmp = dest;
	57
	58	if (count) {
	59	while (*dest)
	60	dest++;
	61	while ((dest++ = src++)) {
	62	if (--count == 0) {
	63	*dest++='\0';
	64	break;
65	}
66	}
67	}
68
69	return tmp;
70	}
71
72	#define __HAVE_ARCH_STRCHR
73	static inline char * strchr(const char * s, int c)
74	{
75	const char ch = c;
76
77	for(; *s != ch; ++s)
78	if (*s == '\0')
79	return( NULL );
80	return( (char *) s);
81	}
82
1da177e4 LT	83	/* strstr !! */
	84
	85	#define __HAVE_ARCH_STRLEN
	86	static inline size_t strlen(const char * s)
	87	{
	88	const char *sc;
	89	for (sc = s; *sc != '\0'; ++sc) ;
	90	return(sc - s);
	91	}
	92
	93	/* strnlen !! */
	94
	95	#define __HAVE_ARCH_STRCMP
	96	static inline int strcmp(const char * cs,const char * ct)
	97	{
	98	char __res;
	99
	100	__asm__
	101	("1:\tmoveb %0@+,%2\n\t" /* get cs /
	102	"cmpb %1@+,%2\n\t" /* compare a byte */
	103	"jne 2f\n\t" /* not equal, break out */
	104	"tstb %2\n\t" /* at end of cs? */
	105	"jne 1b\n\t" /* no, keep going */
	106	"jra 3f\n\t" /* strings are equal */
	107	"2:\tsubb %1@-,%2\n\t" /* cs - ct */
	108	"3:"
	109	: "=a" (cs), "=a" (ct), "=d" (__res)
	110	: "0" (cs), "1" (ct));
	111	return __res;
	112	}
	113
	114	#define __HAVE_ARCH_STRNCMP
	115	static inline int strncmp(const char * cs,const char * ct,size_t count)
	116	{
	117	char __res;
	118
	119	if (!count)
	120	return 0;
	121	__asm__
	122	("1:\tmovb %0@+,%3\n\t" /* get cs /
	123	"cmpb %1@+,%3\n\t" /* compare a byte */
	124	"jne 3f\n\t" /* not equal, break out */
	125	"tstb %3\n\t" /* at end of cs? */
	126	"jeq 4f\n\t" /* yes, all done */
	127	"subql #1,%2\n\t" /* no, adjust count */
	128	"jne 1b\n\t" /* more to do, keep going */
	129	"2:\tmoveq #0,%3\n\t" /* strings are equal */
	130	"jra 4f\n\t"
	131	"3:\tsubb %1@-,%3\n\t" /* cs - ct */
	132	"4:"
	133	: "=a" (cs), "=a" (ct), "=d" (count), "=d" (__res)
	134	: "0" (cs), "1" (ct), "2" (count));
	135	return __res;
	136	}
	137
	138	#define __HAVE_ARCH_MEMSET
072dffda RZ	139	extern void memset(void , int, __kernel_size_t);
072dffda RZ	140	#define memset(d, c, n) __builtin_memset(d, c, n)
1da177e4 LT	141
1da177e4 LT	142	#define __HAVE_ARCH_MEMCPY
072dffda RZ	143	extern void memcpy(void , const void *, __kernel_size_t);
072dffda RZ	144	#define memcpy(d, s, n) __builtin_memcpy(d, s, n)
1da177e4 LT	145
1da177e4 LT	146	#define __HAVE_ARCH_MEMMOVE
072dffda	147	extern void memmove(void , const void *, __kernel_size_t);
1da177e4 LT	148
1da177e4 LT	149	#define __HAVE_ARCH_MEMCMP
072dffda RZ	150	extern int memcmp(const void , const void , __kernel_size_t);
072dffda RZ	151	#define memcmp(d, s, n) __builtin_memcmp(d, s, n)
1da177e4 LT	152
1da177e4 LT	153	#endif /* _M68K_STRING_H_ */