1/* $NetBSD: strlen.S,v 1.1 2005/12/20 19:28:50 christos Exp $ */
2
3/*-
4 * Copyright (c) 1991, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Ralph Campbell.
9 *
--- 18 unchanged lines hidden (view full) ---
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#include <machine/asm.h>
36__FBSDID("$FreeBSD: head/lib/libc/mips/string/strlen.S 178580 2008-04-26 12:08:02Z imp $");
37
38#if defined(LIBC_SCCS) && !defined(lint)
39 ASMSTR("from: @(#)strlen.s 8.1 (Berkeley) 6/4/93")
40 ASMSTR("$NetBSD: strlen.S,v 1.1 2005/12/20 19:28:50 christos Exp $")
41#endif /* LIBC_SCCS and not lint */
42
43#ifdef __ABICALLS__
44 .abicalls
45#endif
46
47LEAF(strlen)
48 addu v1, a0, 1
491:
50 lb v0, 0(a0) # get byte from string
51 addu a0, a0, 1 # increment pointer
52 bne v0, zero, 1b # continue if not end
53 subu v0, a0, v1 # compute length - 1 for '\0' char
54 j ra
55END(strlen)
2
3/*-
4 * Copyright (c) 1991, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Ralph Campbell.
9 *
--- 18 unchanged lines hidden (view full) ---
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#include <machine/asm.h>
36__FBSDID("$FreeBSD: head/lib/libc/mips/string/strlen.S 178580 2008-04-26 12:08:02Z imp $");
37
38#if defined(LIBC_SCCS) && !defined(lint)
39 ASMSTR("from: @(#)strlen.s 8.1 (Berkeley) 6/4/93")
40 ASMSTR("$NetBSD: strlen.S,v 1.1 2005/12/20 19:28:50 christos Exp $")
41#endif /* LIBC_SCCS and not lint */
42
43#ifdef __ABICALLS__
44 .abicalls
45#endif
46
47LEAF(strlen)
48 addu v1, a0, 1
491:
50 lb v0, 0(a0) # get byte from string
51 addu a0, a0, 1 # increment pointer
52 bne v0, zero, 1b # continue if not end
53 subu v0, a0, v1 # compute length - 1 for '\0' char
54 j ra
55END(strlen)