#include	<lib9.h> void*memccpy(void *a1, void *a2, int c, ulong n){	uchar *s1, *s2; 	s1 = a1;	s2 = a2;	c &= 0xFF;	while(n > 0) {		if((*s1++ = *s2++) == c)			return s1;		n--;	}	return 0;}