1 /* Copyright (C) 1991-2015 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Torbjorn Granlund (tege@sics.se).
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
24 /* Set N bytes of S to 0. */
30 long int dstp = (long int) s;
37 /* There are at least some bytes to zero. No need to test
38 for LEN == 0 in this alignment loop. */
39 while (dstp % OPSIZ != 0)
41 ((byte *) dstp)[0] = 0;
46 /* Write 8 op_t per iteration until less than 8 op_t remain. */
47 xlen = len / (OPSIZ * 8);
50 ((op_t *) dstp)[0] = zero;
51 ((op_t *) dstp)[1] = zero;
52 ((op_t *) dstp)[2] = zero;
53 ((op_t *) dstp)[3] = zero;
54 ((op_t *) dstp)[4] = zero;
55 ((op_t *) dstp)[5] = zero;
56 ((op_t *) dstp)[6] = zero;
57 ((op_t *) dstp)[7] = zero;
63 /* Write 1 op_t per iteration until less than op_t remain. */
67 ((op_t *) dstp)[0] = zero;
74 /* Write the last few bytes. */
77 ((byte *) dstp)[0] = 0;
82 weak_alias (__bzero, bzero)