1993-05-13 17:51:52 +04:00
|
|
|
/*-
|
|
|
|
|
* Copyright (c) 1990 The Regents of the University of California.
|
|
|
|
|
* All rights reserved.
|
|
|
|
|
*
|
|
|
|
|
* This code is derived from software contributed to Berkeley by
|
|
|
|
|
* the Systems Programming Group of the University of Utah Computer
|
|
|
|
|
* Science Department.
|
|
|
|
|
*
|
|
|
|
|
* Redistribution and use in source and binary forms, with or without
|
|
|
|
|
* modification, are permitted provided that the following conditions
|
|
|
|
|
* are met:
|
|
|
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
|
|
|
* notice, this list of conditions and the following disclaimer.
|
|
|
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
|
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
|
|
|
* documentation and/or other materials provided with the distribution.
|
|
|
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
|
|
|
* must display the following acknowledgement:
|
|
|
|
|
* This product includes software developed by the University of
|
|
|
|
|
* California, Berkeley and its contributors.
|
|
|
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
|
|
|
* may be used to endorse or promote products derived from this software
|
|
|
|
|
* without specific prior written permission.
|
|
|
|
|
*
|
|
|
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
|
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
|
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
|
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
|
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
|
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
|
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
|
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
|
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
|
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
|
|
|
* SUCH DAMAGE.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
1993-08-01 21:54:45 +04:00
|
|
|
/*.asciz "from: @(#)index.s 5.1 (Berkeley) 5/12/90"*/
|
|
|
|
|
.asciz "$Id: index.s,v 1.2 1993/08/01 18:41:37 mycroft Exp $"
|
1993-05-13 17:51:52 +04:00
|
|
|
#endif /* LIBC_SCCS and not lint */
|
|
|
|
|
|
|
|
|
|
#include "DEFS.h"
|
|
|
|
|
|
|
|
|
|
ENTRY(index)
|
|
|
|
|
movl sp@(4),a0 /* string */
|
|
|
|
|
movb sp@(11),d0 /* char to look for */
|
|
|
|
|
ixloop:
|
|
|
|
|
cmpb a0@,d0 /* found our char? */
|
|
|
|
|
jeq ixfound /* yes, break out */
|
|
|
|
|
tstb a0@+ /* null? */
|
|
|
|
|
jne ixloop /* no, keep going */
|
|
|
|
|
moveq #0,d0 /* not found, return null */
|
|
|
|
|
rts
|
|
|
|
|
ixfound:
|
|
|
|
|
movl a0,d0 /* found, return pointer */
|
|
|
|
|
rts
|
