From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- arch/v850/lib/muldi3.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 arch/v850/lib/muldi3.c (limited to 'arch/v850/lib/muldi3.c') diff --git a/arch/v850/lib/muldi3.c b/arch/v850/lib/muldi3.c new file mode 100644 index 000000000000..277ca25c82c8 --- /dev/null +++ b/arch/v850/lib/muldi3.c @@ -0,0 +1,61 @@ +/* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and + gcc-2.7.2.3/longlong.h which is: */ +/* Copyright (C) 1989, 1992, 1993, 1994, 1995, 2001 Free Software Foundation, Inc. + +This file is part of GNU CC. + +GNU CC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU CC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU CC; see the file COPYING. If not, write to +the Free Software Foundation, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +#define umul_ppmm(w1, w0, u, v) \ + __asm__ ("mulu %3, %0, %1" \ + : "=r" ((USItype)(w0)), \ + "=r" ((USItype)(w1)) \ + : "%0" ((USItype)(u)), \ + "r" ((USItype)(v))) + +#define __umulsidi3(u, v) \ + ({DIunion __w; \ + umul_ppmm (__w.s.high, __w.s.low, u, v); \ + __w.ll; }) + +typedef int SItype __attribute__ ((mode (SI))); +typedef unsigned int USItype __attribute__ ((mode (SI))); +typedef int DItype __attribute__ ((mode (DI))); +typedef int word_type __attribute__ ((mode (__word__))); + +struct DIstruct {SItype high, low;}; + +typedef union +{ + struct DIstruct s; + DItype ll; +} DIunion; + +DItype +__muldi3 (DItype u, DItype v) +{ + DIunion w; + DIunion uu, vv; + + uu.ll = u, + vv.ll = v; + + w.ll = __umulsidi3 (uu.s.low, vv.s.low); + w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high + + (USItype) uu.s.high * (USItype) vv.s.low); + + return w.ll; +} -- cgit v1.2.3-59-g8ed1b