diff options
Diffstat (limited to 'sysdeps/vax/strspn.s')
| -rw-r--r-- | sysdeps/vax/strspn.s | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/sysdeps/vax/strspn.s b/sysdeps/vax/strspn.s new file mode 100644 index 0000000000..fc86af7c37 --- /dev/null +++ b/sysdeps/vax/strspn.s @@ -0,0 +1,70 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * 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) + .asciz "@(#)strspn.s 5.1 (Berkeley) 5/15/90" +#endif /* LIBC_SCCS and not lint */ + +/* + * Span the string s2 (skip characters that are in s2). + * Return the number of characters in s1 that were skipped. + * + * size_t + * strspn(s1, s2) + * const char *s1, *s2; + */ +#include "DEFS.h" + +ENTRY(strspn, 0) + subl2 $32,sp /* make 256 bit table */ + movc5 $0,(sp),$0,$32,(sp) + movq 4(ap),r1 /* r1 = s1, r2 = s2 */ + + /* turn on bit for each character in s2, including '\0' */ +1: + movzbl (r2)+,r0 + bbss r0,(sp),1b + bneq 1b + + /* now clear bit for '\0' */ + /* (this is easier than avoiding setting it in the first place) */ + bicb2 $1,(sp) /* stop at '\0' */ + movl r1,r0 /* r0 = s (current pos in s1) */ + + /* look for a character that is not in s2 */ +2: + movzbl (r0)+,r2 /* c = *s++ */ + bbs r2,(sp),2b /* loop while c is in table */ + decl r0 /* s-- */ + subl2 r1,r0 /* r0 = s - s1 = count */ + ret |