/* For some machines GNU MP needs to define an auxiliary function:
udiv_qrnnd (quotient, remainder, high_numerator, low_numerator, denominator)
Divides a two-word unsigned integer, composed by the integers
HIGH_NUMERATOR and LOW_NUMERATOR, by DENOMINATOR and places the quotient
in QUOTIENT and the remainder in REMAINDER. HIGH_NUMERATOR must be less
than DENOMINATOR for correct operation. If, in addition, the most
significant bit of DENOMINATOR must be 1, then the pre-processor symbol
UDIV_NEEDS_NORMALIZATION is defined to 1. */