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Diffstat (limited to 'newlib/libc/machine/spu/strlen.c')
-rw-r--r-- | newlib/libc/machine/spu/strlen.c | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/newlib/libc/machine/spu/strlen.c b/newlib/libc/machine/spu/strlen.c deleted file mode 100644 index a8403e045..000000000 --- a/newlib/libc/machine/spu/strlen.c +++ /dev/null @@ -1,68 +0,0 @@ -/* - (C) Copyright 2001,2006, - International Business Machines Corporation, - Sony Computer Entertainment, Incorporated, - Toshiba Corporation, - - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - - * Redistributions of source code must retain the above copyright notice, - this list of conditions and the following disclaimer. - * 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. - * Neither the names of the copyright holders nor the names of their - contributors may be used to endorse or promote products derived from this - software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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. -*/ -#include <spu_intrinsics.h> -#include <stddef.h> - -/* - * Calculates the length of the string s, not including the terminating - * \0 character. - */ -size_t strlen(const char *s) -{ - unsigned int cnt, cmp, skip, mask; - vec_uchar16 *ptr, data; - - /* - * Compensate for initial mis-aligned string. - */ - ptr = (vec_uchar16 *)s; /* implicit 16 byte alignment when dereferenced */ - skip = (unsigned int)(ptr) & 15; - mask = 0xFFFF >> skip; - - data = *ptr; - cmp = spu_extract(spu_gather(spu_cmpeq(data, 0)), 0); - cmp &= mask; - - cnt = spu_extract(spu_cntlz(spu_promote(cmp, 0)), 0); - - while (cnt == 32) { - data = *++ptr; - cnt = spu_extract(spu_cntlz(spu_gather(spu_cmpeq(data, 0))), 0); - } - - /* - * The length is ptr aligned down to a 16 byte boundary, plus the offset - * to the zero byte, minus the starting address s. - */ - return ((((int) ptr & ~0xf) + (cnt - 16)) - (int) s); -} |