ia64/linux-2.6.18-xen.hg

view arch/v850/lib/muldi3.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 /* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and
2 gcc-2.7.2.3/longlong.h which is: */
3 /* Copyright (C) 1989, 1992, 1993, 1994, 1995, 2001 Free Software Foundation, Inc.
5 This file is part of GNU CC.
7 GNU CC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
10 any later version.
12 GNU CC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU CC; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
22 #define umul_ppmm(w1, w0, u, v) \
23 __asm__ ("mulu %3, %0, %1" \
24 : "=r" ((USItype)(w0)), \
25 "=r" ((USItype)(w1)) \
26 : "%0" ((USItype)(u)), \
27 "r" ((USItype)(v)))
29 #define __umulsidi3(u, v) \
30 ({DIunion __w; \
31 umul_ppmm (__w.s.high, __w.s.low, u, v); \
32 __w.ll; })
34 typedef int SItype __attribute__ ((mode (SI)));
35 typedef unsigned int USItype __attribute__ ((mode (SI)));
36 typedef int DItype __attribute__ ((mode (DI)));
37 typedef int word_type __attribute__ ((mode (__word__)));
39 struct DIstruct {SItype high, low;};
41 typedef union
42 {
43 struct DIstruct s;
44 DItype ll;
45 } DIunion;
47 DItype
48 __muldi3 (DItype u, DItype v)
49 {
50 DIunion w;
51 DIunion uu, vv;
53 uu.ll = u,
54 vv.ll = v;
56 w.ll = __umulsidi3 (uu.s.low, vv.s.low);
57 w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high
58 + (USItype) uu.s.high * (USItype) vv.s.low);
60 return w.ll;
61 }