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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libgcc/] [config/] [epiphany/] [mulsi3.c] - Rev 749
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/* Generic 32 bit multiply. Copyright (C) 2009 Free Software Foundation, Inc. Contributed by Embecosm on behalf of Adapteva, Inc. This file is part of GCC. This file 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 3, or (at your option) any later version. This file 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. Under Section 7 of GPL version 3, you are granted additional permissions described in the GCC Runtime Library Exception, version 3.1, as published by the Free Software Foundation. You should have received a copy of the GNU General Public License and a copy of the GCC Runtime Library Exception along with this program; see the files COPYING3 and COPYING.RUNTIME respectively. If not, see <http://www.gnu.org/licenses/>. */ unsigned int __mulsi3 (unsigned int a, unsigned int b) { unsigned int r = 0; while (a) { if (a & 1) r += b; a >>= 1; b <<= 1; } return r; }
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