projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| b34f40f6 | 1 | /*- |
| 37032729 KB |
2 | * Copyright (c) 1990, 1993 |
| 3 | * The Regents of the University of California. All rights reserved. | |
| b34f40f6 | 4 | * |
| c0567266 KB |
5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions | |
| 7 | * are met: | |
| 8 | * 1. Redistributions of source code must retain the above copyright | |
| 9 | * notice, this list of conditions and the following disclaimer. | |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 | * notice, this list of conditions and the following disclaimer in the | |
| 12 | * documentation and/or other materials provided with the distribution. | |
| 13 | * 3. All advertising materials mentioning features or use of this software | |
| 14 | * must display the following acknowledgement: | |
| 15 | * This product includes software developed by the University of | |
| 16 | * California, Berkeley and its contributors. | |
| 17 | * 4. Neither the name of the University nor the names of its contributors | |
| 18 | * may be used to endorse or promote products derived from this software | |
| 19 | * without specific prior written permission. | |
| 20 | * | |
| 21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 31 | * SUCH DAMAGE. | |
| b34f40f6 KB |
32 | */ |
| 33 | ||
| 34 | #if defined(LIBC_SCCS) && !defined(lint) | |
| ad787160 | 35 | .asciz "@(#)strpbrk.s 8.1 (Berkeley) 6/4/93" |
| b34f40f6 KB |
36 | #endif /* LIBC_SCCS and not lint */ |
| 37 | ||
| 38 | /* | |
| 39 | * Find in s1 the first occurrence of any character from s2. | |
| 40 | * If there are none, return NULL. | |
| 41 | * | |
| 42 | * char * | |
| 43 | * strpbrk(s1, s2) | |
| 44 | * const char *s1, *s2; | |
| 45 | */ | |
| 46 | #include "DEFS.h" | |
| 47 | ||
| 48 | ENTRY(strpbrk, 0) | |
| 49 | subl2 $32,sp /* make 256 bit table */ | |
| 50 | movc5 $0,(sp),$0,$32,(sp) | |
| 51 | movq 4(ap),r0 /* r0 = s1, r1 = s2 */ | |
| 52 | ||
| 53 | /* turn on bit for each character in s2, including '\0' */ | |
| 54 | 1: | |
| 55 | movzbl (r1)+,r2 | |
| 56 | bbss r2,(sp),1b | |
| 57 | bneq 1b | |
| 58 | ||
| 59 | /* look for a character that is in s2 */ | |
| 60 | 2: | |
| 61 | movzbl (r0)+,r2 /* c = *s++ */ | |
| 62 | bbc r2,(sp),2b /* loop until c is in table */ | |
| 63 | beql 3f /* if c==0, go return NULL */ | |
| 64 | decl r0 /* s-- */ | |
| 65 | ret | |
| 66 | 3: | |
| 67 | clrl r0 | |
| 68 | ret |