| ffs.S (85437) | ffs.S (93000) |
|---|---|
| 1/* 2 * Copyright (c) 1993 Winning Strategies, Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 14 unchanged lines hidden (view full) --- 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 | 1/* 2 * Copyright (c) 1993 Winning Strategies, Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 14 unchanged lines hidden (view full) --- 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 |
| 31#if defined(LIBC_RCS) && !defined(lint) 32 .text 33 .asciz "$FreeBSD: head/lib/libc/i386/string/ffs.S 85437 2001-10-24 20:29:14Z peter $" 34#endif /* LIBC_RCS and not lint */ 35 | |
| 36#include <machine/asm.h> | 31#include <machine/asm.h> |
| 32__FBSDID("$FreeBSD: head/lib/libc/i386/string/ffs.S 93000 2002-03-23 02:44:19Z obrien $"); |
|
| 37 38/* 39 * ffs(value) 40 * finds the first bit set in value and returns the index of 41 * that bit. Bits are numbered starting from 1, starting at the 42 * rightmost bit. A return value of 0 means that the argument 43 * was zero. 44 * --- 13 unchanged lines hidden --- | 33 34/* 35 * ffs(value) 36 * finds the first bit set in value and returns the index of 37 * that bit. Bits are numbered starting from 1, starting at the 38 * rightmost bit. A return value of 0 means that the argument 39 * was zero. 40 * --- 13 unchanged lines hidden --- |