xref: /original-bsd/lib/libc/tahoe/string/strlen.s (revision 4092c5cc)
1/*
2 * Copyright (c) 1988, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * %sccs.include.redist.c%
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Computer Consoles Inc.
9 */
10
11#if defined(LIBC_SCCS) && !defined(lint)
12	.asciz "@(#)strlen.s	8.1 (Berkeley) 06/04/93"
13#endif /* LIBC_SCCS and not lint */
14
15/*
16 * Returns the number of
17 * non-NULL bytes in string argument.
18 */
19
20#include "DEFS.h"
21
22ENTRY(strlen, 0)
23	movl	4(fp),r0
24	movl	r0,r1
25	cmps2
26	subl2	4(fp),r0
27	ret
28