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
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
; HP-PA 2.0 __gmpn_add_n -- Add two limb vectors of the same length > 0 and
; store sum in a third limb vector.
; Copyright (C) 1997, 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.
; INPUT PARAMETERS
; res_ptr gr26
; s1_ptr gr25
; s2_ptr gr24
; size gr23
; This runs at 2 cycles/limb on PA8000.
.level 2.0n
.code
.export __gmpn_add_n,entry
__gmpn_add_n
.proc
.callinfo frame=0,args_saved
.entry
sub %r0,%r23,%r22
depw,z %r22,30,3,%r28 ; r28 = 2 * (-n & 7)
depw,z %r22,28,3,%r22 ; r22 = 8 * (-n & 7)
sub %r25,%r22,%r25 ; offset s1_ptr
sub %r24,%r22,%r24 ; offset s2_ptr
sub %r26,%r22,%r26 ; offset res_ptr
blr %r28,%r0 ; branch into loop
add %r0,%r0,%r0 ; reset carry
L$loop ldd 0(%r25),%r20
ldd 0(%r24),%r31
add,dc %r20,%r31,%r20
std %r20,0(%r26)
L$7 ldd 8(%r25),%r21
ldd 8(%r24),%r19
add,dc %r21,%r19,%r21
std %r21,8(%r26)
L$6 ldd 16(%r25),%r20
ldd 16(%r24),%r31
add,dc %r20,%r31,%r20
std %r20,16(%r26)
L$5 ldd 24(%r25),%r21
ldd 24(%r24),%r19
add,dc %r21,%r19,%r21
std %r21,24(%r26)
L$4 ldd 32(%r25),%r20
ldd 32(%r24),%r31
add,dc %r20,%r31,%r20
std %r20,32(%r26)
L$3 ldd 40(%r25),%r21
ldd 40(%r24),%r19
add,dc %r21,%r19,%r21
std %r21,40(%r26)
L$2 ldd 48(%r25),%r20
ldd 48(%r24),%r31
add,dc %r20,%r31,%r20
std %r20,48(%r26)
L$1 ldd 56(%r25),%r21
ldo 64(%r25),%r25
ldd 56(%r24),%r19
add,dc %r21,%r19,%r21
std %r21,56(%r26)
ldo 64(%r24),%r24
addib,> -8,%r23,L$loop
ldo 64(%r26),%r26
add,dc %r0,%r0,%r29
bve (%r2)
.exit
ldi 0,%r28
.procend
|
