summaryrefslogtreecommitdiff
path: root/vere/ext/gmp/gen/x86_64-macos/mpn/sublsh2_n.s
blob: 8e62cfe4cd979ee8f6e3346a80809a516ed2de39 (plain)
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













































































	.text
	.align	3, 0x90
	.globl	___gmpn_sublsh2_n
	
	
___gmpn_sublsh2_n:

	
	push	%rbx
	push	%r12

	mov	%ecx, %eax
	lea	24(%rsi,%rcx,8), %rsi
	lea	24(%rdx,%rcx,8), %rdx
	lea	24(%rdi,%rcx,8), %rdi
	neg	%rcx

	xor	%r11d, %r11d

	mov	-24(%rdx,%rcx,8), %r8	
	shrd	$62, %r8, %r11

	and	$3, %eax
	je	Lb0
	cmp	$2, %eax
	jc	Lb1
	je	Lb2

Lb3:	mov	-16(%rdx,%rcx,8), %r9
	shrd	$62, %r9, %r8
	mov	-8(%rdx,%rcx,8), %r10
	shrd	$62, %r10, %r9
	mov	-24(%rsi,%rcx,8), %r12
	sub	%r11, %r12
	mov	%r12, -24(%rdi,%rcx,8)
	mov	-16(%rsi,%rcx,8), %r12
	sbb	%r8, %r12
	mov	%r12, -16(%rdi,%rcx,8)
	mov	-8(%rsi,%rcx,8), %r12
	sbb	%r9, %r12
	mov	%r12, -8(%rdi,%rcx,8)
	mov	%r10, %r11
	sbb	%eax, %eax	
	add	$3, %rcx
	js	Ltop
	jmp	Lend

Lb1:	mov	-24(%rsi,%rcx,8), %r12
	sub	%r11, %r12
	mov	%r12, -24(%rdi,%rcx,8)
	mov	%r8, %r11
	sbb	%eax, %eax	
	inc	%rcx
	js	Ltop
	jmp	Lend

Lb2:	mov	-16(%rdx,%rcx,8), %r9
	shrd	$62, %r9, %r8
	mov	-24(%rsi,%rcx,8), %r12
	sub	%r11, %r12
	mov	%r12, -24(%rdi,%rcx,8)
	mov	-16(%rsi,%rcx,8), %r12
	sbb	%r8, %r12
	mov	%r12, -16(%rdi,%rcx,8)
	mov	%r9, %r11
	sbb	%eax, %eax	
	add	$2, %rcx
	js	Ltop
	jmp	Lend

	.align	4, 0x90
Ltop:	mov	-24(%rdx,%rcx,8), %r8
	shrd	$62, %r8, %r11
Lb0:	mov	-16(%rdx,%rcx,8), %r9
	shrd	$62, %r9, %r8
	mov	-8(%rdx,%rcx,8), %r10
	shrd	$62, %r10, %r9
	mov	(%rdx,%rcx,8), %rbx
	shrd	$62, %rbx, %r10

	add	%eax, %eax	

	mov	-24(%rsi,%rcx,8), %r12
	sbb	%r11, %r12
	mov	%r12, -24(%rdi,%rcx,8)

	mov	-16(%rsi,%rcx,8), %r12
	sbb	%r8, %r12
	mov	%r12, -16(%rdi,%rcx,8)

	mov	-8(%rsi,%rcx,8), %r12
	sbb	%r9, %r12
	mov	%r12, -8(%rdi,%rcx,8)

	mov	(%rsi,%rcx,8), %r12
	sbb	%r10, %r12
	mov	%r12, (%rdi,%rcx,8)

	mov	%rbx, %r11
	sbb	%eax, %eax	

	add	$4, %rcx
	js	Ltop

Lend:	shr	$62, %r11
	pop	%r12
	pop	%rbx
	sub	%r11d, %eax
	neg	%eax
	
	ret