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
|
! SPARC v9 __mpn_addmul_1 -- Multiply a limb vector with a single limb and
! add the product to a second limb vector.
! Copyright (C) 1996 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 Library General Public License as published by
! the Free Software Foundation; either version 2 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 Library General Public
! License for more details.
! You should have received a copy of the GNU Library 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 o0
! s1_ptr o1
! size o2
! s2_limb o3
.section ".text"
.align 4
.global __mpn_addmul_1
.type __mpn_addmul_1,#function
.proc 016
__mpn_addmul_1:
!#PROLOGUE# 0
save %sp,-160,%sp
!#PROLOGUE# 1
sub %g0,%i2,%o7
sllx %o7,3,%g5
sub %i1,%g5,%o3
sub %i0,%g5,%o4
mov 0,%o0 ! zero cy_limb
srl %i3,0,%o1 ! extract low 32 bits of s2_limb
srlx %i3,32,%i3 ! extract high 32 bits of s2_limb
mov 1,%o2
sllx %o2,32,%o2 ! o2 = 0x100000000
! hi !
! mid-1 !
! mid-2 !
! lo !
.Loop:
sllx %o7,3,%g1
ldx [%o3+%g1],%g5
srl %g5,0,%i0 ! zero hi bits
srlx %g5,32,%g5
mulx %o1,%i0,%i4 ! lo product
mulx %i3,%i0,%i1 ! mid-1 product
mulx %o1,%g5,%l2 ! mid-2 product
mulx %i3,%g5,%i5 ! hi product
srlx %i4,32,%i0 ! extract high 32 bits of lo product...
add %i1,%i0,%i1 ! ...and add it to the mid-1 product
addcc %i1,%l2,%i1 ! add mid products
mov 0,%l0 ! we need the carry from that add...
movcs %xcc,%o2,%l0 ! ...compute it and...
add %i5,%l0,%i5 ! ...add to bit 32 of the hi product
sllx %i1,32,%i0 ! align low bits of mid product
srl %i4,0,%g5 ! zero high 32 bits of lo product
add %i0,%g5,%i0 ! combine into low 64 bits of result
srlx %i1,32,%i1 ! extract high bits of mid product...
add %i5,%i1,%i1 ! ...and add them to the high result
addcc %i0,%o0,%i0 ! add cy_limb to low 64 bits of result
mov 0,%g5
movcs %xcc,1,%g5
add %o7,1,%o7
ldx [%o4+%g1],%l1
addcc %l1,%i0,%i0
movcs %xcc,1,%g5
stx %i0,[%o4+%g1]
brnz %o7,.Loop
add %i1,%g5,%o0 ! compute new cy_limb
mov %o0,%i0
ret
restore
.LLfe1:
.size __mpn_addmul_1,.LLfe1-__mpn_addmul_1
|
