1 /* SPDX-License-Identifier: GPL-2.0-or-later *
2 /* Copyright (C) 1989, 1992, 1993, 1994, 1995
3
4 This file is part of GNU CC.
5
6 */
7
8 .text
9 .align 4
10 .globl __udivdi3
11 __udivdi3:
12 save %sp,-104,%sp
13 mov %i3,%o3
14 cmp %i2,0
15 bne .LL40
16 mov %i1,%i3
17 cmp %o3,%i0
18 bleu .LL41
19 mov %i3,%o1
20 ! Inlined udiv_qrnnd
21 mov 32,%g1
22 subcc %i0,%o3,%g0
23 1: bcs 5f
24 addxcc %o1,%o1,%o1 ! shift n1n0 a
25 sub %i0,%o3,%i0 ! this kills m
26 addx %i0,%i0,%i0 ! so this cann
27 subcc %g1,1,%g1
28 2: bne 1b
29 subcc %i0,%o3,%g0
30 bcs 3f
31 addxcc %o1,%o1,%o1 ! shift n1n0 a
32 b 3f
33 sub %i0,%o3,%i0 ! this kills m
34 4: sub %i0,%o3,%i0
35 5: addxcc %i0,%i0,%i0
36 bcc 2b
37 subcc %g1,1,%g1
38 ! Got carry from n. Subtract next step to can
39 bne 4b
40 addcc %o1,%o1,%o1 ! shift n1n0 a
41 sub %i0,%o3,%i0
42 3: xnor %o1,0,%o1
43 ! End of inline udiv_qrnnd
44 b .LL45
45 mov 0,%o2
46 .LL41:
47 cmp %o3,0
48 bne .LL77
49 mov %i0,%o2
50 mov 1,%o0
51 mov 0,%o1
52 wr %g0, 0, %y
53 udiv %o0, %o1, %o0
54 mov %o0,%o3
55 mov %i0,%o2
56 .LL77:
57 mov 0,%o4
58 ! Inlined udiv_qrnnd
59 mov 32,%g1
60 subcc %o4,%o3,%g0
61 1: bcs 5f
62 addxcc %o2,%o2,%o2 ! shift n1n0 a
63 sub %o4,%o3,%o4 ! this kills m
64 addx %o4,%o4,%o4 ! so this cann
65 subcc %g1,1,%g1
66 2: bne 1b
67 subcc %o4,%o3,%g0
68 bcs 3f
69 addxcc %o2,%o2,%o2 ! shift n1n0 a
70 b 3f
71 sub %o4,%o3,%o4 ! this kills m
72 4: sub %o4,%o3,%o4
73 5: addxcc %o4,%o4,%o4
74 bcc 2b
75 subcc %g1,1,%g1
76 ! Got carry from n. Subtract next step to can
77 bne 4b
78 addcc %o2,%o2,%o2 ! shift n1n0 a
79 sub %o4,%o3,%o4
80 3: xnor %o2,0,%o2
81 ! End of inline udiv_qrnnd
82 mov %o4,%i0
83 mov %i3,%o1
84 ! Inlined udiv_qrnnd
85 mov 32,%g1
86 subcc %i0,%o3,%g0
87 1: bcs 5f
88 addxcc %o1,%o1,%o1 ! shift n1n0 a
89 sub %i0,%o3,%i0 ! this kills m
90 addx %i0,%i0,%i0 ! so this cann
91 subcc %g1,1,%g1
92 2: bne 1b
93 subcc %i0,%o3,%g0
94 bcs 3f
95 addxcc %o1,%o1,%o1 ! shift n1n0 a
96 b 3f
97 sub %i0,%o3,%i0 ! this kills m
98 4: sub %i0,%o3,%i0
99 5: addxcc %i0,%i0,%i0
100 bcc 2b
101 subcc %g1,1,%g1
102 ! Got carry from n. Subtract next step to can
103 bne 4b
104 addcc %o1,%o1,%o1 ! shift n1n0 a
105 sub %i0,%o3,%i0
106 3: xnor %o1,0,%o1
107 ! End of inline udiv_qrnnd
108 b .LL78
109 mov %o1,%l1
110 .LL40:
111 cmp %i2,%i0
112 bleu .LL46
113 sethi %hi(65535),%o0
114 b .LL73
115 mov 0,%o1
116 .LL46:
117 or %o0,%lo(65535),%o0
118 cmp %i2,%o0
119 bgu .LL53
120 mov %i2,%o1
121 cmp %i2,256
122 addx %g0,-1,%o0
123 b .LL59
124 and %o0,8,%o2
125 .LL53:
126 sethi %hi(16777215),%o0
127 or %o0,%lo(16777215),%o0
128 cmp %o1,%o0
129 bgu .LL59
130 mov 24,%o2
131 mov 16,%o2
132 .LL59:
133 srl %o1,%o2,%o1
134 sethi %hi(__clz_tab),%o0
135 or %o0,%lo(__clz_tab),%o0
136 ldub [%o1+%o0],%o0
137 add %o0,%o2,%o0
138 mov 32,%o1
139 subcc %o1,%o0,%o2
140 bne,a .LL67
141 mov 32,%o0
142 cmp %i0,%i2
143 bgu .LL69
144 cmp %i3,%o3
145 blu .LL73
146 mov 0,%o1
147 .LL69:
148 b .LL73
149 mov 1,%o1
150 .LL67:
151 sub %o0,%o2,%o0
152 sll %i2,%o2,%i2
153 srl %o3,%o0,%o1
154 or %i2,%o1,%i2
155 sll %o3,%o2,%o3
156 srl %i0,%o0,%o1
157 sll %i0,%o2,%i0
158 srl %i3,%o0,%o0
159 or %i0,%o0,%i0
160 sll %i3,%o2,%i3
161 mov %i0,%o5
162 mov %o1,%o4
163 ! Inlined udiv_qrnnd
164 mov 32,%g1
165 subcc %o4,%i2,%g0
166 1: bcs 5f
167 addxcc %o5,%o5,%o5 ! shift n1n0 a
168 sub %o4,%i2,%o4 ! this kills m
169 addx %o4,%o4,%o4 ! so this cann
170 subcc %g1,1,%g1
171 2: bne 1b
172 subcc %o4,%i2,%g0
173 bcs 3f
174 addxcc %o5,%o5,%o5 ! shift n1n0 a
175 b 3f
176 sub %o4,%i2,%o4 ! this kills m
177 4: sub %o4,%i2,%o4
178 5: addxcc %o4,%o4,%o4
179 bcc 2b
180 subcc %g1,1,%g1
181 ! Got carry from n. Subtract next step to can
182 bne 4b
183 addcc %o5,%o5,%o5 ! shift n1n0 a
184 sub %o4,%i2,%o4
185 3: xnor %o5,0,%o5
186 ! End of inline udiv_qrnnd
187 mov %o4,%i0
188 mov %o5,%o1
189 ! Inlined umul_ppmm
190 wr %g0,%o1,%y ! SPARC has 0-
191 sra %o3,31,%g2 ! Do not move
192 and %o1,%g2,%g2 ! Do not move
193 andcc %g0,0,%g1 ! Do not move
194 mulscc %g1,%o3,%g1
195 mulscc %g1,%o3,%g1
196 mulscc %g1,%o3,%g1
197 mulscc %g1,%o3,%g1
198 mulscc %g1,%o3,%g1
199 mulscc %g1,%o3,%g1
200 mulscc %g1,%o3,%g1
201 mulscc %g1,%o3,%g1
202 mulscc %g1,%o3,%g1
203 mulscc %g1,%o3,%g1
204 mulscc %g1,%o3,%g1
205 mulscc %g1,%o3,%g1
206 mulscc %g1,%o3,%g1
207 mulscc %g1,%o3,%g1
208 mulscc %g1,%o3,%g1
209 mulscc %g1,%o3,%g1
210 mulscc %g1,%o3,%g1
211 mulscc %g1,%o3,%g1
212 mulscc %g1,%o3,%g1
213 mulscc %g1,%o3,%g1
214 mulscc %g1,%o3,%g1
215 mulscc %g1,%o3,%g1
216 mulscc %g1,%o3,%g1
217 mulscc %g1,%o3,%g1
218 mulscc %g1,%o3,%g1
219 mulscc %g1,%o3,%g1
220 mulscc %g1,%o3,%g1
221 mulscc %g1,%o3,%g1
222 mulscc %g1,%o3,%g1
223 mulscc %g1,%o3,%g1
224 mulscc %g1,%o3,%g1
225 mulscc %g1,%o3,%g1
226 mulscc %g1,0,%g1
227 add %g1,%g2,%o0
228 rd %y,%o2
229 cmp %o0,%i0
230 bgu,a .LL73
231 add %o1,-1,%o1
232 bne,a .LL45
233 mov 0,%o2
234 cmp %o2,%i3
235 bleu .LL45
236 mov 0,%o2
237 add %o1,-1,%o1
238 .LL73:
239 mov 0,%o2
240 .LL45:
241 mov %o1,%l1
242 .LL78:
243 mov %o2,%l0
244 mov %l0,%i0
245 mov %l1,%i1
246 ret
247 restore
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