summaryrefslogtreecommitdiff
path: root/vere/ext/gmp/gen/aarch64-macos/mpn/mul_1.s
blob: 78581521998dbd6676039c47b313b4853a0e0afa (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



























































	.text
	.align	3
	.globl	___gmpn_mul_1c 
	
___gmpn_mul_1c:
	adds	xzr, xzr, xzr		
	b	Lcom
	

	.text
	.align	3
	.globl	___gmpn_mul_1 
	
___gmpn_mul_1:
	adds	x4, xzr, xzr		
Lcom:	lsr	x17, x2, #2
	tbnz	x2, #0, Lbx1

Lbx0:	mov	x11, x4
	tbz	x2, #1, Lb00

Lb10:	ldp	x4, x5, [x1]
	mul	x8, x4, x3
	umulh	x10, x4, x3
	cbz	x17, L2
	ldp	x6, x7, [x1,#16]!
	mul	x9, x5, x3
	b	Lmid-8

L2:	mul	x9, x5, x3
	b	L2e

Lbx1:	ldr	x7, [x1],#8
	mul	x9, x7, x3
	umulh	x11, x7, x3
	adds	x9, x9, x4
	str	x9, [x0],#8
	tbnz	x2, #1, Lb10

Lb01:	cbz	x17, L1

Lb00:	ldp	x6, x7, [x1]
	mul	x8, x6, x3
	umulh	x10, x6, x3
	ldp	x4, x5, [x1,#16]
	mul	x9, x7, x3
	adcs	x12, x8, x11
	umulh	x11, x7, x3
	add	x0, x0, #16
	sub	x17, x17, #1
	cbz	x17, Lend

	.align	4
Ltop:	mul	x8, x4, x3
	ldp	x6, x7, [x1,#32]!
	adcs	x13, x9, x10
	umulh	x10, x4, x3
	mul	x9, x5, x3
	stp	x12, x13, [x0,#-16]
	adcs	x12, x8, x11
	umulh	x11, x5, x3
Lmid:	mul	x8, x6, x3
	ldp	x4, x5, [x1,#16]
	adcs	x13, x9, x10
	umulh	x10, x6, x3
	mul	x9, x7, x3
	stp	x12, x13, [x0],#32
	adcs	x12, x8, x11
	umulh	x11, x7, x3
	sub	x17, x17, #1
	cbnz	x17, Ltop

Lend:	mul	x8, x4, x3
	adcs	x13, x9, x10
	umulh	x10, x4, x3
	mul	x9, x5, x3
	stp	x12, x13, [x0,#-16]
L2e:	adcs	x12, x8, x11
	umulh	x11, x5, x3
	adcs	x13, x9, x10
	stp	x12, x13, [x0]
L1:	adc	x0, x11, xzr
	ret