| ! SH2 __gmpn_addmul_1 -- Multiply a limb vector with a limb and add |
| ! the result to a second limb vector. |
| |
| ! Copyright 1995, 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/. |
| |
| |
| ! INPUT PARAMETERS |
| ! res_ptr r4 |
| ! s1_ptr r5 |
| ! size r6 |
| ! s2_limb r7 |
| |
| .text |
| .align 1 |
| .global ___gmpn_addmul_1 |
| ___gmpn_addmul_1: |
| mov #0,r2 ! cy_limb = 0 |
| mov #0,r0 ! Keep r0 = 0 for entire loop |
| clrt |
| |
| Loop: mov.l @r5+,r3 |
| dmulu.l r3,r7 |
| sts macl,r1 |
| addc r2,r1 ! lo_prod += old cy_limb |
| sts mach,r2 ! new cy_limb = hi_prod |
| mov.l @r4,r3 |
| addc r0,r2 ! cy_limb += T, T = 0 |
| addc r3,r1 |
| addc r0,r2 ! cy_limb += T, T = 0 |
| dt r6 |
| mov.l r1,@r4 |
| bf.s Loop |
| add #4,r4 |
| |
| rts |
| mov r2,r0 |