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
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
dnl Alpha mpn_addlsh1_n/mpn_sublsh1_n -- rp[] = up[] +- (vp[] << 1).
dnl Copyright 2003, 2013 Free Software Foundation, Inc.
dnl This file is part of the GNU MP Library.
dnl
dnl The GNU MP Library is free software; you can redistribute it and/or modify
dnl it under the terms of either:
dnl
dnl * the GNU Lesser General Public License as published by the Free
dnl Software Foundation; either version 3 of the License, or (at your
dnl option) any later version.
dnl
dnl or
dnl
dnl * the GNU General Public License as published by the Free Software
dnl Foundation; either version 2 of the License, or (at your option) any
dnl later version.
dnl
dnl or both in parallel, as here.
dnl
dnl The GNU MP Library is distributed in the hope that it will be useful, but
dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
dnl for more details.
dnl
dnl You should have received copies of the GNU General Public License and the
dnl GNU Lesser General Public License along with the GNU MP Library. If not,
dnl see https://www.gnu.org/licenses/.
include(`../config.m4')
C cycles/limb
C EV4: ?
C EV5: 6.25
C EV6: 4.5
define(`rp',`r16')
define(`up',`r17')
define(`vp',`r18')
define(`n', `r19')
define(`u0', `r8')
define(`u1', `r1')
define(`v0', `r4')
define(`v1', `r5')
define(`cy0', `r0')
define(`cy1', `r20')
define(`cy', `r22')
define(`rr', `r24')
define(`ps', `r25')
define(`sl', `r28')
ifdef(`OPERATION_addlsh1_n',`
define(ADDSUB, addq)
define(CARRY, `cmpult $1,$2,$3')
define(func, mpn_addlsh1_n)
')
ifdef(`OPERATION_sublsh1_n',`
define(ADDSUB, subq)
define(CARRY, `cmpult $2,$1,$3')
define(func, mpn_sublsh1_n)
')
MULFUNC_PROLOGUE(mpn_addlsh1_n mpn_sublsh1_n)
ASM_START()
PROLOGUE(func)
and n, 2, cy0
blbs n, L(bx1)
L(bx0): ldq v1, 0(vp)
ldq u1, 0(up)
nop
bne cy0, L(b10)
L(b00): lda vp, 48(vp)
lda up, -16(up)
lda rp, -8(rp)
br r31, L(lo0)
L(b10): lda vp, 32(vp)
lda rp, 8(rp)
lda cy0, 0(r31)
br r31, L(lo2)
L(bx1): ldq v0, 0(vp)
ldq u0, 0(up)
lda cy1, 0(r31)
beq cy0, L(b01)
L(b11): lda vp, 40(vp)
lda up, -24(up)
lda rp, 16(rp)
br r31, L(lo3)
L(b01): lda n, -4(n)
ble n, L(end)
lda vp, 24(vp)
lda up, -8(up)
ALIGN(16)
L(top): addq v0, v0, sl C left shift vlimb
ldq v1, -16(vp)
ADDSUB u0, sl, ps C ulimb + (vlimb << 1)
cmplt v0, r31, cy0 C carry out #1
ldq u1, 16(up)
ADDSUB ps, cy1, rr C consume carry from previous operation
CARRY( ps, u0, cy) C carry out #2
stq rr, 0(rp)
addq cy, cy0, cy0 C combine carry out #1 and #2
CARRY( rr, ps, cy) C carry out #3
addq cy, cy0, cy0 C final carry out
lda vp, 32(vp) C bookkeeping
L(lo0): addq v1, v1, sl
ldq v0, -40(vp)
ADDSUB u1, sl, ps
cmplt v1, r31, cy1
ldq u0, 24(up)
ADDSUB ps, cy0, rr
CARRY( ps, u1, cy)
stq rr, 8(rp)
addq cy, cy1, cy1
CARRY( rr, ps, cy)
addq cy, cy1, cy1
lda rp, 32(rp) C bookkeeping
L(lo3): addq v0, v0, sl
ldq v1, -32(vp)
ADDSUB u0, sl, ps
cmplt v0, r31, cy0
ldq u1, 32(up)
ADDSUB ps, cy1, rr
CARRY( ps, u0, cy)
stq rr, -16(rp)
addq cy, cy0, cy0
CARRY( rr, ps, cy)
addq cy, cy0, cy0
lda up, 32(up) C bookkeeping
L(lo2): addq v1, v1, sl
ldq v0, -24(vp)
ADDSUB u1, sl, ps
cmplt v1, r31, cy1
ldq u0, 8(up)
ADDSUB ps, cy0, rr
CARRY( ps, u1, cy)
stq rr, -8(rp)
addq cy, cy1, cy1
CARRY( rr, ps, cy)
addq cy, cy1, cy1
lda n, -4(n) C bookkeeping
bgt n, L(top)
L(end): addq v0, v0, sl
ADDSUB u0, sl, ps
ADDSUB ps, cy1, rr
cmplt v0, r31, cy0
CARRY( ps, u0, cy)
stq rr, 0(rp)
addq cy, cy0, cy0
CARRY( rr, ps, cy)
addq cy, cy0, r0
ret r31,(r26),1
EPILOGUE()
ASM_END()
|
