| /* This Source Code Form is subject to the terms of the Mozilla Public |
| * License, v. 2.0. If a copy of the MPL was not distributed with this |
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| |
| #ifndef MPI_AMD64 |
| #error This file only works on AMD64 platforms. |
| #endif |
| |
| #include <mpi-priv.h> |
| |
| /* |
| * MPI glue |
| * |
| */ |
| |
| /* Presently, this is only used by the Montgomery arithmetic code. */ |
| /* c += a * b */ |
| void MPI_ASM_DECL |
| s_mpv_mul_d_add_prop(const mp_digit *a, mp_size a_len, |
| mp_digit b, mp_digit *c) |
| { |
| mp_digit w; |
| mp_digit d; |
| |
| d = s_mpv_mul_add_vec64(c, a, a_len, b); |
| c += a_len; |
| while (d) { |
| w = c[0] + d; |
| d = (w < c[0] || w < d); |
| *c++ = w; |
| } |
| } |