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Diffstat (limited to 'sysdeps/vax/rindex.s')
| -rw-r--r-- | sysdeps/vax/rindex.s | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/sysdeps/vax/rindex.s b/sysdeps/vax/rindex.s deleted file mode 100644 index 76d7e29..0000000 --- a/sysdeps/vax/rindex.s +++ /dev/null @@ -1,113 +0,0 @@ -/* - * Copyright (c) 1983 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 "@(#)rindex.s 5.6 (Berkeley) 6/1/90" -#endif /* LIBC_SCCS and not lint */ - -/* - * Find the last occurence of c in the string cp. - * Return pointer to match or null pointer. - * - * char * - * rindex(cp, c) - * char *cp, c; - */ -#include "DEFS.h" - -ENTRY(rindex, 0) - movq 4(ap),r1 # r1 = cp; r2 = c - tstl r2 # check for special case c == '\0' - bneq 2f -1: - locc $0,$65535,(r1) # just find end of string - beql 1b # still looking - movl r1,r0 # found it - ret -2: - moval tbl,r3 # r3 = address of table - bbss $0,(r3),5f # insure not reentering - movab (r3)[r2],r5 # table entry for c - incb (r5) - clrl r4 # last found -3: - scanc $65535,(r1),(r3),$1 # look for c or '\0' - beql 3b # keep looking - tstb (r1) # if have found '\0' - beql 4f # we are done - movl r1,r4 # save most recently found - incl r1 # skip over character - jbr 3b # keep looking -4: - movl r4,r0 # return last found (if any) - clrb (r5) # clean up table - clrb (r3) - ret - - .data -tbl: .space 256 - .text - -/* - * Reentrant, but slower version of rindex - */ -5: - movl r1,r3 - clrl r4 # r4 = pointer to last match -6: - locc $0,$65535,(r3) # look for '\0' - bneq 8f - decw r0 # r0 = 65535 -1: - locc r2,r0,(r3) # look for c - bneq 7f - movl r1,r3 # reset pointer and ... - jbr 6b # ... try again -7: - movl r1,r4 # stash pointer ... - addl3 $1,r1,r3 # ... skip over match and ... - decl r0 # ... decrement count - jbr 6b # ... try again -8: - subl3 r3,r1,r0 # length of short block - incl r0 # +1 for '\0' -9: - locc r2,r0,(r3) # look for c - beql 0f - movl r1,r4 # stash pointer ... - addl3 $1,r1,r3 # ... skip over match ... - decl r0 # ... adjust count and ... - jbr 9b # ... try again -0: - movl r4,r0 # return stashed pointer - ret |