1/*- 2 * Copyright (c) 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * the Systems Programming Group of the University of Utah Computer 7 * Science Department. 8 * 9 * %sccs.include.redist.c% 10 */ 11 12#if defined(LIBC_SCCS) && !defined(lint) 13 .asciz "@(#)index.s 8.1 (Berkeley) 06/04/93" 14#endif /* LIBC_SCCS and not lint */ 15 16#include "DEFS.h" 17 18ENTRY(index) 19 movl sp@(4),a0 /* string */ 20 movb sp@(11),d0 /* char to look for */ 21ixloop: 22 cmpb a0@,d0 /* found our char? */ 23 jeq ixfound /* yes, break out */ 24 tstb a0@+ /* null? */ 25 jne ixloop /* no, keep going */ 26 moveq #0,d0 /* not found, return null */ 27 rts 28ixfound: 29 movl a0,d0 /* found, return pointer */ 30 rts 31