Someone

#include <stdio.h>
#include <stdlib.h>
int main(void)
{
    unsigned int count = 10;
    char fill_value = 15;
    char *dest = malloc(512);
    asm ( "movl %0, %%ecx;\n"
	  "movl %2, %%esi;\n"
	  "loop: \n"
	  "movb %1, (%%esi)\n"
	  "inc %%esi\n"
	  "loopnz loop\n"
	:
	: "r" (count), "r" (fill_value), "r" (dest)
	: "%ecx", "%esi"
	);
	
	int index;
        for(index = 0; index < 16; index++)
	{
    	    printf("%d ",dest[index]);
        }

    getchar();
}