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
|
.text
.align 16, 0x90
.globl __gmpn_divrem_2
.def __gmpn_divrem_2
.scl 2
.type 32
.endef
__gmpn_divrem_2:
push %rdi
push %rsi
mov %rcx, %rdi
mov %rdx, %rsi
mov %r8, %rdx
mov %r9, %rcx
mov 56(%rsp), %r8
push %r15
push %r14
push %r13
push %r12
lea -24(%rdx,%rcx,8), %r12
mov %rsi, %r13
push %rbp
mov %rdi, %rbp
push %rbx
mov 8(%r8), %r11
mov 16(%r12), %rbx
mov (%r8), %r8
mov 8(%r12), %r10
xor %r15d, %r15d
cmp %rbx, %r11
ja L2
setb %dl
cmp %r10, %r8
setbe %al
orb %al, %dl
je L2
inc %r15d
sub %r8, %r10
sbb %r11, %rbx
L2:
lea -3(%rcx,%r13), %r14
test %r14, %r14
js Lend
push %r8
push %r10
push %r11
mov %r11, %rcx
sub $32, %rsp
call __gmpn_invert_limb
add $32, %rsp
pop %r11
pop %r10
pop %r8
mov %r11, %rdx
mov %rax, %rdi
imul %rax, %rdx
mov %rdx, %r9
mul %r8
xor %ecx, %ecx
add %r8, %r9
adc $-1, %rcx
add %rdx, %r9
adc $0, %rcx
js 2f
1: dec %rdi
sub %r11, %r9
sbb $0, %rcx
jns 1b
2:
lea (%rbp,%r14,8), %rbp
mov %r11, %rsi
neg %rsi
.align 16, 0x90
Ltop: mov %rdi, %rax
mul %rbx
mov %r10, %rcx
add %rax, %rcx
adc %rbx, %rdx
mov %rdx, %r9
imul %rsi, %rdx
mov %r8, %rax
lea (%rdx, %r10), %rbx
xor %r10d, %r10d
mul %r9
cmp %r14, %r13
jg L19
mov (%r12), %r10
sub $8, %r12
L19: sub %r8, %r10
sbb %r11, %rbx
sub %rax, %r10
sbb %rdx, %rbx
xor %eax, %eax
xor %edx, %edx
cmp %rcx, %rbx
cmovnc %r8, %rax
cmovnc %r11, %rdx
adc $0, %r9
nop
add %rax, %r10
adc %rdx, %rbx
cmp %r11, %rbx
jae Lfix
Lbck: mov %r9, (%rbp)
sub $8, %rbp
dec %r14
jns Ltop
Lend: mov %r10, 8(%r12)
mov %rbx, 16(%r12)
pop %rbx
pop %rbp
pop %r12
pop %r13
pop %r14
mov %r15, %rax
pop %r15
pop %rsi
pop %rdi
ret
Lfix: seta %dl
cmp %r8, %r10
setae %al
orb %dl, %al
je Lbck
inc %r9
sub %r8, %r10
sbb %r11, %rbx
jmp Lbck
|
