BN_num_bits_word
i = BN_num_bits_word(d);
ubits = utop*BN_BITS2 + BN_num_bits_word(ul);
return ((i * BN_BITS2) + BN_num_bits_word(a->d[i]));
j = BN_num_bits_word((BN_ULONG)al);
j = BN_num_bits_word((BN_ULONG)bl);
j = BN_num_bits_word((BN_ULONG)al);
j = BN_num_bits_word((BN_ULONG)al);
j = BN_BITS2 - BN_num_bits_word(w);
int BN_num_bits_word(BN_ULONG);