2011-04-10 19:06:16 -04:00
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/* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
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Copyright 1991, 1992, 1993, 1994, 1996, 1997, 1999, 2000, 2001, 2002, 2003,
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2004, 2005 , 2007 , 2008 , 2009 Free Software Foundation, Inc.
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This file is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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This file is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this file; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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2011-04-27 20:27:14 -04:00
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#if defined (__GNUC__)
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2011-04-10 19:06:16 -04:00
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#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
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#define umul_ppmm(w1, w0, u, v) \
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do { \
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UDItype __ll = (UDItype)(u) * (v); \
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w1 = __ll >> 32; \
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w0 = __ll; \
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} while (0)
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#endif
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#if !defined (umul_ppmm) && (__GNUC__ > 2 || __GNUC_MINOR__ >= 7)
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#define umul_ppmm(w1, w0, u, v) \
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__asm__ ("multu %2,%3" : "=l" (w0), "=h" (w1) : "d" (u), "d" (v))
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#endif
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#if !defined (umul_ppmm)
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#define umul_ppmm(w1, w0, u, v) \
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__asm__ ("multu %2,%3\n\tmflo %0\n\tmfhi %1" \
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: "=d" (w0), "=d" (w1) : "d" (u), "d" (v))
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#endif
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2011-04-27 20:27:14 -04:00
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#endif
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