ia64/linux-2.6.18-xen.hg

view arch/m68knommu/lib/lshrdi3.c @ 854:950b9eb27661

usbback: fix urb interval value for interrupt urbs.

Signed-off-by: Noboru Iwamatsu <n_iwamatsu@jp.fujitsu.com>
author Keir Fraser <keir.fraser@citrix.com>
date Mon Apr 06 13:51:20 2009 +0100 (2009-04-06)
parents 831230e53067
children
line source
1 /* lshrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */
2 /* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
9 any later version.
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 #define BITS_PER_UNIT 8
23 typedef int SItype __attribute__ ((mode (SI)));
24 typedef unsigned int USItype __attribute__ ((mode (SI)));
25 typedef int DItype __attribute__ ((mode (DI)));
26 typedef int word_type __attribute__ ((mode (__word__)));
28 struct DIstruct {SItype high, low;};
30 typedef union
31 {
32 struct DIstruct s;
33 DItype ll;
34 } DIunion;
36 DItype
37 __lshrdi3 (DItype u, word_type b)
38 {
39 DIunion w;
40 word_type bm;
41 DIunion uu;
43 if (b == 0)
44 return u;
46 uu.ll = u;
48 bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
49 if (bm <= 0)
50 {
51 w.s.high = 0;
52 w.s.low = (USItype)uu.s.high >> -bm;
53 }
54 else
55 {
56 USItype carries = (USItype)uu.s.high << bm;
57 w.s.high = (USItype)uu.s.high >> b;
58 w.s.low = ((USItype)uu.s.low >> b) | carries;
59 }
61 return w.ll;
62 }