ref: 1018d7a7091fd5e0433f501a3474cdc3fec322cc
dir: /libkern/memccpy.c/
#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; }