summaryrefslogtreecommitdiff
path: root/vere/ext/gmp/gen/x86_64-windows/mpn/div_qr_2n_pi1.s
blob: fa2d87a65a03ee72700264c8bb2440e3addd604b (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







































































	.text
	.align	16, 0x90
	.globl	__gmpn_div_qr_2n_pi1
	
	.def	__gmpn_div_qr_2n_pi1
	.scl	2
	.type	32
	.endef
__gmpn_div_qr_2n_pi1:

	push	%rdi
	push	%rsi
	mov	%rcx, %rdi
	mov	%rdx, %rsi
	mov	%r8, %rdx
	mov	%r9, %rcx

	mov	56(%rsp), %r8	
	mov	64(%rsp), %r9	

	mov	72(%rsp), %r10
	mov	%rdx, %r11
	push	%r15
	push	%r14
	push	%r13
	push	%r12
	push	%rbx

	mov	-16(%r11, %rcx, 8), %r12
	mov	-8(%r11, %rcx, 8), %rbx

	mov	%r12, %r14
	mov	%rbx, %r13
	sub	%r9, %r14
	sbb	%r8, %r13
	cmovnc  %r14, %r12
	cmovnc	%r13, %rbx
	
	sbb	%rax, %rax
	inc	%rax
	push	%rax
	lea	-2(%rcx), %rcx
	mov	%r8, %r15
	neg	%r15

	jmp	Lnext

	.align	16, 0x90
Lloop:
	
	

	mov	%r10, %rax
	mul	%rbx
	mov	%r12, %r14
	add	%rax, %r14	
	adc	%rbx, %rdx
	mov	%rdx, %r13	
	imul	%r15, %rdx
	mov	%r9, %rax
	lea	(%rdx, %r12), %rbx
	mul	%r13
	mov	(%r11, %rcx, 8), %r12
	sub	%r9, %r12
	sbb	%r8, %rbx
	sub	%rax, %r12
	sbb	%rdx, %rbx
	xor	%eax, %eax
	xor	%edx, %edx
	cmp	%r14, %rbx
	cmovnc	%r9, %rax
	cmovnc	%r8, %rdx
	adc	$0, %r13
	nop
	add	%rax, %r12
	adc	%rdx, %rbx
	cmp	%r8, %rbx
	jae	Lfix
Lbck:
	mov	%r13, (%rdi, %rcx, 8)
Lnext:
	sub	$1, %rcx
	jnc	Lloop
Lend:
	mov	%rbx, 8(%rsi)
	mov	%r12, (%rsi)

	
	pop	%rax

	pop	%rbx
	pop	%r12
	pop	%r13
	pop	%r14
	pop	%r15
	pop	%rsi
	pop	%rdi
	ret

Lfix:	
	seta	%dl
	cmp	%r9, %r12
	setae	%al
	orb	%dl, %al		
	je	Lbck
	inc	%r13
	sub	%r9, %r12
	sbb	%r8, %rbx
	jmp	Lbck