for (;;)
		{
		if (high < HALF)
			bit_plus_follow_0
		else if (low >= HALF)
			{
			bit_plus_follow_1
			low -= (unsigned)HALF;
			high -= (unsigned)HALF;
			}
		else if (low >= FIRST_QTR && high < THIRD_QTR)
			{
			bits_to_follow ++;
			low -= (unsigned)FIRST_QTR;
			high -= (unsigned)FIRST_QTR;
			}
		else
			break;

		low <<= 1;
		high <<= 1;
		high ++;
		} /* end of bit output loop */