51 lines
1.3 KiB
ArmAsm
51 lines
1.3 KiB
ArmAsm
! SH2 __gmpn_mul_1 -- Multiply a limb vector with a limb and store
|
|
! the result in 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 2.1 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; see the file COPYING.LIB. If not, write to
|
|
! the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
|
! MA 02110-1301, USA.
|
|
|
|
|
|
! INPUT PARAMETERS
|
|
! res_ptr r4
|
|
! s1_ptr r5
|
|
! size r6
|
|
! s2_limb r7
|
|
|
|
.text
|
|
.align 1
|
|
.global ___gmpn_mul_1
|
|
___gmpn_mul_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
|
|
sts mach,r2
|
|
addc r0,r2 ! propagate carry to cy_limb (dt clobbers T)
|
|
dt r6
|
|
mov.l r1,@r4
|
|
bf.s Loop
|
|
add #4,r4
|
|
|
|
rts
|
|
mov r2,r0
|