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view gcc/config/iq2000/lib2extra-funcs.c @ 8:5066dc73ff8f

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Thu, 20 Aug 2009 19:10:35 +0900
parents a06113de4d67
children 77e2b8dfacca
line wrap: on
line source

typedef unsigned int USItype		__attribute__ ((mode (SI)));

USItype
__mulsi3 (USItype a, USItype b)
{
  USItype c = 0;

  while (a != 0)
    {
      if (a & 1)
	c += b;
      a >>= 1;
      b <<= 1;
    }

  return c;
}