68 lines
1.7 KiB
C
68 lines
1.7 KiB
C
/* Copyright 2012 The Code cavern
|
|
|
|
This file is part of the MPIR Library.
|
|
|
|
The MPIR Library is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published
|
|
by the Free Software Foundation; either version 2.1 of the License, or (at
|
|
your option) any later version.
|
|
|
|
The MPIR Library is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
|
|
License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with the MPIR Library; see the file COPYING.LIB. If not, write
|
|
to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
Boston, MA 02110-1301, USA.
|
|
|
|
*/
|
|
|
|
#include "mpir.h"
|
|
#include "gmp-impl.h"
|
|
|
|
mp_limb_t mpn_addadd_n(mp_ptr t, mp_srcptr x, mp_srcptr y, mp_srcptr z, mp_size_t n)
|
|
{
|
|
mp_limb_t ret;
|
|
mp_srcptr a = x, b = y, c = z;
|
|
|
|
ASSERT(n > 0);
|
|
ASSERT_MPN(x, n);
|
|
ASSERT_MPN(y, n);
|
|
ASSERT_MPN(z, n);
|
|
ASSERT(MPN_SAME_OR_SEPARATE_P(t, x, n));
|
|
ASSERT(MPN_SAME_OR_SEPARATE_P(t, y, n));
|
|
ASSERT(MPN_SAME_OR_SEPARATE_P(t, z, n));
|
|
|
|
if(t == x)
|
|
{
|
|
if (t == y)
|
|
{
|
|
if (t == z)
|
|
{
|
|
#ifdef HAVE_NATIVE_mpn_addlsh1_n
|
|
return mpn_addlsh1_n(t, x, y, n);
|
|
#else
|
|
return mpn_mul_1(t, x, n, 3);
|
|
#endif
|
|
}
|
|
}
|
|
else
|
|
{
|
|
MP_SRCPTR_SWAP(b, c);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
MP_SRCPTR_SWAP(a, c);
|
|
|
|
if (t == y)
|
|
MP_SRCPTR_SWAP(a, b);
|
|
}
|
|
|
|
ret = mpn_add_n(t, a, b, n);
|
|
|
|
return ret + mpn_add_n(t, t, c, n);
|
|
}
|