1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
# I960 __gmpn_add_n -- Add two limb vectors of the same length > 0 and store
# sum in a third limb vector.
# Copyright (C) 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., 59 Temple Place - Suite 330, Boston,
# MA 02111-1307, USA.
.text
.align 4
.globl ___gmpn_add_n
___gmpn_add_n:
mov 0,g6 # clear carry-save register
cmpo 1,0 # clear cy
Loop: subo 1,g3,g3 # update loop counter
ld (g1),g5 # load from s1_ptr
addo 4,g1,g1 # s1_ptr++
ld (g2),g4 # load from s2_ptr
addo 4,g2,g2 # s2_ptr++
cmpo g6,1 # restore cy from g6, relies on cy being 0
addc g4,g5,g4 # main add
subc 0,0,g6 # save cy in g6
st g4,(g0) # store result to res_ptr
addo 4,g0,g0 # res_ptr++
cmpobne 0,g3,Loop # when branch is taken, clears C bit
mov g6,g0
ret
|
