2 #ifdef BN_MP_DR_SETUP_C
3 /* LibTomMath, multiple-precision integer library -- Tom St Denis
5 * LibTomMath is a library that provides multiple-precision
6 * integer arithmetic as well as number theoretic functionality.
8 * The library was designed directly after the MPI library by
9 * Michael Fromberger but has been written from scratch with
10 * additional optimizations in place.
12 * The library is free for all purposes without any express
15 * Tom St Denis, tomstdenis@iahu.ca, http://math.libtomcrypt.org
18 /* determines the setup value */
19 void mp_dr_setup(mp_int *a, mp_digit *d)
21 /* the casts are required if DIGIT_BIT is one less than
22 * the number of bits in a mp_digit [e.g. DIGIT_BIT==31]
24 *d = (mp_digit)((((mp_word)1) << ((mp_word)DIGIT_BIT)) -