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[/] [or1k/] [trunk/] [insight/] [libiberty/] [ffs.c] - Blame information for rev 1774

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1 578 markom
/* ffs -- Find the first bit set in the parameter
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NAME
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        ffs -- Find the first bit set in the parameter
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SYNOPSIS
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        int ffs (int valu)
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DESCRIPTION
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        Find the first bit set in the parameter. Bits are numbered from
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        right to left, starting with bit 1.
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*/
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int
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ffs (valu)
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  register int valu;
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{
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  register int bit;
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  if (valu == 0)
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    return 0;
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  for (bit = 1; !(valu & 1); bit++)
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        valu >>= 1;
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  return bit;
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}
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