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