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
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
#ifdef IN_SANDY2X
/*
This file is the result of merging
amd64-51/fe25519_pack.c and amd64-51/fe25519_freeze.s.
*/
#include "fe51_namespace.h"
#include "consts_namespace.h"
.p2align 5
#ifdef ASM_HIDE_SYMBOL
ASM_HIDE_SYMBOL fe51_pack
ASM_HIDE_SYMBOL _fe51_pack
#endif
.globl fe51_pack
.globl _fe51_pack
#ifdef __ELF__
.type fe51_pack, @function
.type _fe51_pack, @function
#endif
fe51_pack:
_fe51_pack:
mov %rsp,%r11
and $31,%r11
add $32,%r11
sub %r11,%rsp
movq %r11,0(%rsp)
movq %r12,8(%rsp)
movq 0(%rsi),%rdx
movq 8(%rsi),%rcx
movq 16(%rsi),%r8
movq 24(%rsi),%r9
movq 32(%rsi),%rsi
movq REDMASK51(%rip),%rax
lea -18(%rax),%r10
mov $3,%r11
.p2align 4
._reduceloop:
mov %rdx,%r12
shr $51,%r12
and %rax,%rdx
add %r12,%rcx
mov %rcx,%r12
shr $51,%r12
and %rax,%rcx
add %r12,%r8
mov %r8,%r12
shr $51,%r12
and %rax,%r8
add %r12,%r9
mov %r9,%r12
shr $51,%r12
and %rax,%r9
add %r12,%rsi
mov %rsi,%r12
shr $51,%r12
and %rax,%rsi
imulq $19, %r12,%r12
add %r12,%rdx
sub $1,%r11
ja ._reduceloop
mov $1,%r12
cmp %r10,%rdx
cmovl %r11,%r12
cmp %rax,%rcx
cmovne %r11,%r12
cmp %rax,%r8
cmovne %r11,%r12
cmp %rax,%r9
cmovne %r11,%r12
cmp %rax,%rsi
cmovne %r11,%r12
neg %r12
and %r12,%rax
and %r12,%r10
sub %r10,%rdx
sub %rax,%rcx
sub %rax,%r8
sub %rax,%r9
sub %rax,%rsi
mov %rdx,%rax
and $0xFF,%eax
movb %al,0(%rdi)
mov %rdx,%rax
shr $8,%rax
and $0xFF,%eax
movb %al,1(%rdi)
mov %rdx,%rax
shr $16,%rax
and $0xFF,%eax
movb %al,2(%rdi)
mov %rdx,%rax
shr $24,%rax
and $0xFF,%eax
movb %al,3(%rdi)
mov %rdx,%rax
shr $32,%rax
and $0xFF,%eax
movb %al,4(%rdi)
mov %rdx,%rax
shr $40,%rax
and $0xFF,%eax
movb %al,5(%rdi)
mov %rdx,%rdx
shr $48,%rdx
mov %rcx,%rax
shl $3,%rax
and $0xF8,%eax
xor %rdx,%rax
movb %al,6(%rdi)
mov %rcx,%rdx
shr $5,%rdx
and $0xFF,%edx
movb %dl,7(%rdi)
mov %rcx,%rdx
shr $13,%rdx
and $0xFF,%edx
movb %dl,8(%rdi)
mov %rcx,%rdx
shr $21,%rdx
and $0xFF,%edx
movb %dl,9(%rdi)
mov %rcx,%rdx
shr $29,%rdx
and $0xFF,%edx
movb %dl,10(%rdi)
mov %rcx,%rdx
shr $37,%rdx
and $0xFF,%edx
movb %dl,11(%rdi)
mov %rcx,%rdx
shr $45,%rdx
mov %r8,%rcx
shl $6,%rcx
and $0xC0,%ecx
xor %rdx,%rcx
movb %cl,12(%rdi)
mov %r8,%rdx
shr $2,%rdx
and $0xFF,%edx
movb %dl,13(%rdi)
mov %r8,%rdx
shr $10,%rdx
and $0xFF,%edx
movb %dl,14(%rdi)
mov %r8,%rdx
shr $18,%rdx
and $0xFF,%edx
movb %dl,15(%rdi)
mov %r8,%rdx
shr $26,%rdx
and $0xFF,%edx
movb %dl,16(%rdi)
mov %r8,%rdx
shr $34,%rdx
and $0xFF,%edx
movb %dl,17(%rdi)
mov %r8,%rdx
shr $42,%rdx
movb %dl,18(%rdi)
mov %r8,%rdx
shr $50,%rdx
mov %r9,%rcx
shl $1,%rcx
and $0xFE,%ecx
xor %rdx,%rcx
movb %cl,19(%rdi)
mov %r9,%rdx
shr $7,%rdx
and $0xFF,%edx
movb %dl,20(%rdi)
mov %r9,%rdx
shr $15,%rdx
and $0xFF,%edx
movb %dl,21(%rdi)
mov %r9,%rdx
shr $23,%rdx
and $0xFF,%edx
movb %dl,22(%rdi)
mov %r9,%rdx
shr $31,%rdx
and $0xFF,%edx
movb %dl,23(%rdi)
mov %r9,%rdx
shr $39,%rdx
and $0xFF,%edx
movb %dl,24(%rdi)
mov %r9,%rdx
shr $47,%rdx
mov %rsi,%rcx
shl $4,%rcx
and $0xF0,%ecx
xor %rdx,%rcx
movb %cl,25(%rdi)
mov %rsi,%rdx
shr $4,%rdx
and $0xFF,%edx
movb %dl,26(%rdi)
mov %rsi,%rdx
shr $12,%rdx
and $0xFF,%edx
movb %dl,27(%rdi)
mov %rsi,%rdx
shr $20,%rdx
and $0xFF,%edx
movb %dl,28(%rdi)
mov %rsi,%rdx
shr $28,%rdx
and $0xFF,%edx
movb %dl,29(%rdi)
mov %rsi,%rdx
shr $36,%rdx
and $0xFF,%edx
movb %dl,30(%rdi)
mov %rsi,%rsi
shr $44,%rsi
movb %sil,31(%rdi)
movq 0(%rsp),%r11
movq 8(%rsp),%r12
add %r11,%rsp
ret
#endif
|
