1 /* MIPS3 __mpn_submul_1 -- Multiply a limb vector with a single limb and
2 * subtract the product from a second limb vector.
4 * Copyright (C) 1992-2014 Free Software Foundation, Inc.
6 * This file is part of the GNU MP Library.
8 * The GNU MP Library is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU Lesser General Public License as published by
10 * the Free Software Foundation; either version 2.1 of the License, or (at your
11 * option) any later version.
13 * The GNU MP Library is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
16 * License for more details.
18 * You should have received a copy of the GNU Lesser General Public License
19 * along with the GNU MP Library. If not, see
20 * <http://www.gnu.org/licenses/>.
36 ENTRY (__mpn_submul_1)
38 SETUP_GP /* ??? unused */
56 ld $8,0($5) # load new s1 limb as early as possible
62 daddu $3,$3,$2 # add old carry limb to low product limb
64 ld $8,0($5) # load new s1 limb as early as possible
65 daddiu $6,$6,-1 # decrement loop counter
66 sltu $2,$3,$2 # carry from previous addition -> $2
73 daddu $2,$9,$2 # add high product limb and carry from addition
87 daddu $2,$9,$2 # add high product limb and carry from addition
100 daddu $2,$9,$2 # add high product limb and carry from addition