ref: 6b84c3a6548f1c577948763b0a09a7b6e2460e04 dir: purgatorio/libkern/memchr.c
#include <lib9.h> void* memchr(void *ap, int c, ulong n) { uchar *sp; sp = ap; c &= 0xFF; while(n > 0) { if(*sp++ == c) return sp-1; n--; } return 0; }