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1 # Alpha __mpn_sub_n -- Subtract two limb vectors of the same length > 0 and
2 # store difference in a third limb vector.
3
4 # Copyright (C) 1995-2019 Free Software Foundation, Inc.
5
6 # This file is part of the GNU MP Library.
7
8 # The GNU MP Library is free software; you can redistribute it and/or modify
9 # it under the terms of the GNU Lesser General Public License as published by
10 # the Free Software Foundation; either version 2.1 of the License, or (at your
11 # option) any later version.
12
13 # The GNU MP Library is distributed in the hope that it will be useful, but
14 # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15 # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
16 # License for more details.
17
18 # You should have received a copy of the GNU Lesser General Public License
19 # along with the GNU MP Library. If not, see <http://www.gnu.org/licenses/>.
20
21
22 # INPUT PARAMETERS
23 # res_ptr $16
24 # s1_ptr $17
25 # s2_ptr $18
26 # size $19
27
28 .set noreorder
29 .set noat
30.text
31 .align 3
32 .globl __mpn_sub_n
33 .ent __mpn_sub_n
34__mpn_sub_n:
35 .frame $30,0,$26,0
36
37 ldq $3,0($17)
38 ldq $4,0($18)
39
40 subq $19,1,$19
41 and $19,4-1,$2 # number of limbs in first loop
42 bis $31,$31,$0
43 beq $2,.L0 # if multiple of 4 limbs, skip first loop
44
45 subq $19,$2,$19
46
47.Loop0: subq $2,1,$2
48 ldq $5,8($17)
49 addq $4,$0,$4
50 ldq $6,8($18)
51 cmpult $4,$0,$1
52 subq $3,$4,$4
53 cmpult $3,$4,$0
54 stq $4,0($16)
55 or $0,$1,$0
56
57 addq $17,8,$17
58 addq $18,8,$18
59 bis $5,$5,$3
60 bis $6,$6,$4
61 addq $16,8,$16
62 bne $2,.Loop0
63
64.L0: beq $19,.Lend
65
66 .align 3
67.Loop: subq $19,4,$19
68
69 ldq $5,8($17)
70 addq $4,$0,$4
71 ldq $6,8($18)
72 cmpult $4,$0,$1
73 subq $3,$4,$4
74 cmpult $3,$4,$0
75 stq $4,0($16)
76 or $0,$1,$0
77
78 ldq $3,16($17)
79 addq $6,$0,$6
80 ldq $4,16($18)
81 cmpult $6,$0,$1
82 subq $5,$6,$6
83 cmpult $5,$6,$0
84 stq $6,8($16)
85 or $0,$1,$0
86
87 ldq $5,24($17)
88 addq $4,$0,$4
89 ldq $6,24($18)
90 cmpult $4,$0,$1
91 subq $3,$4,$4
92 cmpult $3,$4,$0
93 stq $4,16($16)
94 or $0,$1,$0
95
96 ldq $3,32($17)
97 addq $6,$0,$6
98 ldq $4,32($18)
99 cmpult $6,$0,$1
100 subq $5,$6,$6
101 cmpult $5,$6,$0
102 stq $6,24($16)
103 or $0,$1,$0
104
105 addq $17,32,$17
106 addq $18,32,$18
107 addq $16,32,$16
108 bne $19,.Loop
109
110.Lend: addq $4,$0,$4
111 cmpult $4,$0,$1
112 subq $3,$4,$4
113 cmpult $3,$4,$0
114 stq $4,0($16)
115 or $0,$1,$0
116 ret $31,($26),1
117
118 .end __mpn_sub_n
119

Warning: That file was not part of the compilation database. It may have many parsing errors.