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/*
* memset.c
*/
#include <string.h>
#include <stdint.h>
void *memset(void *dst, int c, size_t n)
{
char *q = dst;
#if defined(__i386__)
size_t nl = n >> 2;
asm volatile ("cld ; rep ; stosl ; movl %3,%0 ; rep ; stosb"
: "+c" (nl), "+D" (q)
: "a" ((unsigned char)c * 0x01010101U), "r" (n & 3));
#elif defined(__x86_64__)
size_t nq = n >> 3;
asm volatile ("cld ; rep ; stosq ; movl %3,%%ecx ; rep ; stosb"
:"+c" (nq), "+D" (q)
: "a" ((unsigned char)c * 0x0101010101010101U),
"r" ((uint32_t) n & 7));
#else
while (n--) {
*q++ = c;
}
#endif
return dst;
}
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