| # ns32000 __gmpn_submul_1 -- Multiply a limb vector with a limb and subtract |
| # the result from a second limb vector. |
| |
| # Copyright 1992, 1994, 2000 Free Software Foundation, Inc. |
| |
| # This file is part of the GNU MP Library. |
| |
| # The GNU MP 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 3 of the License, or (at your |
| # option) any later version. |
| |
| # The GNU MP 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 GNU MP Library. If not, see http://www.gnu.org/licenses/. |
| |
| |
| .align 1 |
| .globl ___gmpn_submul_1 |
| ___gmpn_submul_1: |
| save [r3,r4,r5,r6,r7] |
| negd 24(sp),r4 |
| movd r4,r0 |
| lshd 2,r0 |
| movd 20(sp),r5 |
| subd r0,r5 # r5 -> to end of S1 |
| movd 16(sp),r6 |
| subd r0,r6 # r6 -> to end of RES |
| subd r0,r0 # r0 = 0, cy = 0 |
| movd 28(sp),r7 # r7 = s2_limb |
| |
| Loop: movd r5[r4:d],r2 |
| meid r7,r2 # r2 = low_prod, r3 = high_prod |
| addcd r0,r2 # r2 = low_prod + cy_limb |
| movd r3,r0 # r0 = new cy_limb |
| addcd 0,r0 |
| subd r2,r6[r4:d] |
| acbd 1,r4,Loop |
| |
| addcd 0,r0 |
| restore [r7,r6,r5,r4,r3] |
| ret 0 |
