1#include "misc.h"
 2
 3int memcmp(const void *s1, const void *s2, size_t len)
 
 4{
 5	u8 diff;
 6	asm("repe; cmpsb; setnz %0"
 7	    : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len));
 8	return diff;
 
 
 
 
 
 
 9}
 
 
 
 
 
 
 
 
 
 
 
10
11#include "../string.c"
 
 
 
 
 
 
 
 
 
 
 
 

 1#include "../string.c"
 2
 3#ifdef CONFIG_X86_32
 4void *memcpy(void *dest, const void *src, size_t n)
 5{
 6	int d0, d1, d2;
 7	asm volatile(
 8		"rep ; movsl\n\t"
 9		"movl %4,%%ecx\n\t"
10		"rep ; movsb\n\t"
11		: "=&c" (d0), "=&D" (d1), "=&S" (d2)
12		: "0" (n >> 2), "g" (n & 3), "1" (dest), "2" (src)
13		: "memory");
14
15	return dest;
16}
17#else
18void *memcpy(void *dest, const void *src, size_t n)
19{
20	long d0, d1, d2;
21	asm volatile(
22		"rep ; movsq\n\t"
23		"movq %4,%%rcx\n\t"
24		"rep ; movsb\n\t"
25		: "=&c" (d0), "=&D" (d1), "=&S" (d2)
26		: "0" (n >> 3), "g" (n & 7), "1" (dest), "2" (src)
27		: "memory");
28
29	return dest;
30}
31#endif
32
33void *memset(void *s, int c, size_t n)
34{
35	int i;
36	char *ss = s;
37
38	for (i = 0; i < n; i++)
39		ss[i] = c;
40	return s;
41}