Hello, Jussi,
Jussi Kivilinna <jussi.kivili...@iki.fi> wrote:
> I think this function could use 'add_ssaaaa' macro to handle addition with
> carry.
>
> Something like this (completely untested):
>
> cy = s2_limb;
> while ( s1_size )
> {
> x = *s1_ptr;
> add_ssaaaa(cy, x, 0, cy, 0, x);
> *s1_ptr++ = x;
> s1_size--;
> }
> return cy;
Good. I'm going to push this to master for _gcry_mpih_add_1_lli
function.
Further, I'm goint to push the chnage for _gcry_mpih_add_lli
function as:
mpi_limb_t
_gcry_mpih_add_lli (mpi_ptr_t wp, mpi_ptr_t up, mpi_ptr_t vp, mpi_size_t usize)
{
mpi_size_t i;
mpi_limb_t cy;
cy = 0;
for (i = 0; i < usize; i++)
{
mpi_limb_t u = up[i];
mpi_limb_t v = vp[i];
mpi_limb_t w;
add_ssaaaa (cy, w, 0, u, 0, cy);
add_ssaaaa (cy, w, cy, w, 0, v);
wp[i] = w;
}
return cy;
}
--
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