Function mul

src/crypto/muhash.cpp:33–38

[c0,c1] = a * b */

/** [c0,c1] = a * b */
inline void mul(limb_t& c0, limb_t& c1, const limb_t& a, const limb_t& b)
{
    double_limb_t t = (double_limb_t)a * b;
    c1 = t >> LIMB_SIZE;
    c0 = t;
}

/* [c0,c1,c2] += n * [d0,d1,d2]. c2 is 0 initially */
inline void mulnadd3(limb_t& c0, limb_t& c1, limb_t& c2, limb_t& d0, limb_t& d1, limb_t& d2, const limb_t& n)