Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

/* 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 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 BITS_PER_UNIT 8

#define umul_ppmm(w1, w0, u, v) \

  __asm__ ("mulu%.l %3,%1:%0"                                           \

           : "=d" ((USItype)(w0)),                                      \

             "=d" ((USItype)(w1))                                       \

           : "%0" ((USItype)(u)),                                       \

             "dmi" ((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;

}