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3402aac7 | 1 | #------------------------------------------------------------------------------\r |
1e57a462 | 2 | #\r |
3 | # Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r | |
4 | #\r | |
5 | # This program and the accompanying materials\r | |
6 | # are licensed and made available under the terms and conditions of the BSD License\r | |
7 | # which accompanies this distribution. The full text of the license may be found at\r | |
8 | # http://opensource.org/licenses/bsd-license.php\r | |
9 | #\r | |
10 | # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | #\r | |
13 | #------------------------------------------------------------------------------\r | |
14 | \r | |
15 | .text\r | |
1a0db791 | 16 | .syntax unified\r |
1e57a462 | 17 | .align 2\r |
18 | GCC_ASM_EXPORT(__udivmoddi4)\r | |
3402aac7 | 19 | \r |
1e57a462 | 20 | ASM_PFX(__udivmoddi4):\r |
21 | stmfd sp!, {r4, r5, r6, r7, lr}\r | |
22 | add r7, sp, #12\r | |
23 | stmfd sp!, {r10, r11}\r | |
24 | sub sp, sp, #20\r | |
25 | stmia sp, {r2-r3}\r | |
26 | ldr r6, [sp, #48]\r | |
27 | orrs r2, r2, r3\r | |
28 | mov r10, r0\r | |
29 | mov r11, r1\r | |
30 | beq L2\r | |
31 | subs ip, r1, #0\r | |
32 | bne L4\r | |
33 | cmp r3, #0\r | |
34 | bne L6\r | |
35 | cmp r6, #0\r | |
36 | beq L8\r | |
37 | mov r1, r2\r | |
38 | bl ASM_PFX(__umodsi3)\r | |
39 | mov r1, #0\r | |
40 | stmia r6, {r0-r1}\r | |
41 | L8:\r | |
42 | ldr r1, [sp, #0]\r | |
43 | mov r0, r10\r | |
44 | b L45\r | |
45 | L6:\r | |
46 | cmp r6, #0\r | |
47 | movne r1, #0\r | |
1a0db791 | 48 | stmiane r6, {r0-r1}\r |
1e57a462 | 49 | b L2\r |
50 | L4:\r | |
51 | ldr r1, [sp, #0]\r | |
52 | cmp r1, #0\r | |
53 | bne L12\r | |
54 | ldr r2, [sp, #4]\r | |
55 | cmp r2, #0\r | |
56 | bne L14\r | |
57 | cmp r6, #0\r | |
58 | beq L16\r | |
59 | mov r1, r2\r | |
60 | mov r0, r11\r | |
61 | bl ASM_PFX(__umodsi3)\r | |
62 | mov r1, #0\r | |
63 | stmia r6, {r0-r1}\r | |
64 | L16:\r | |
65 | ldr r1, [sp, #4]\r | |
66 | mov r0, r11\r | |
67 | L45:\r | |
68 | bl ASM_PFX(__udivsi3)\r | |
69 | L46:\r | |
70 | mov r10, r0\r | |
71 | mov r11, #0\r | |
72 | b L10\r | |
73 | L14:\r | |
74 | subs r1, r0, #0\r | |
75 | bne L18\r | |
76 | cmp r6, #0\r | |
77 | beq L16\r | |
78 | ldr r1, [sp, #4]\r | |
79 | mov r0, r11\r | |
80 | bl ASM_PFX(__umodsi3)\r | |
81 | mov r4, r10\r | |
82 | mov r5, r0\r | |
83 | stmia r6, {r4-r5}\r | |
84 | b L16\r | |
85 | L18:\r | |
86 | sub r3, r2, #1\r | |
87 | tst r2, r3\r | |
88 | bne L22\r | |
89 | cmp r6, #0\r | |
90 | movne r4, r0\r | |
91 | andne r5, ip, r3\r | |
1a0db791 | 92 | stmiane r6, {r4-r5}\r |
1e57a462 | 93 | L24:\r |
94 | rsb r3, r2, #0\r | |
95 | and r3, r2, r3\r | |
96 | clz r3, r3\r | |
97 | rsb r3, r3, #31\r | |
98 | mov r0, ip, lsr r3\r | |
99 | b L46\r | |
100 | L22:\r | |
101 | clz r2, r2\r | |
102 | clz r3, ip\r | |
103 | rsb r3, r3, r2\r | |
104 | cmp r3, #30\r | |
105 | bhi L48\r | |
106 | rsb r2, r3, #31\r | |
107 | add lr, r3, #1\r | |
108 | mov r3, r1, asl r2\r | |
109 | str r3, [sp, #12]\r | |
110 | mov r3, r1, lsr lr\r | |
111 | ldr r0, [sp, #0]\r | |
112 | mov r5, ip, lsr lr\r | |
113 | orr r4, r3, ip, asl r2\r | |
114 | str r0, [sp, #8]\r | |
115 | b L29\r | |
116 | L12:\r | |
117 | ldr r3, [sp, #4]\r | |
118 | cmp r3, #0\r | |
119 | bne L30\r | |
120 | sub r3, r1, #1\r | |
121 | tst r1, r3\r | |
122 | bne L32\r | |
123 | cmp r6, #0\r | |
124 | andne r3, r3, r0\r | |
125 | movne r2, r3\r | |
126 | movne r3, #0\r | |
1a0db791 | 127 | stmiane r6, {r2-r3}\r |
1e57a462 | 128 | L34:\r |
129 | cmp r1, #1\r | |
130 | beq L10\r | |
131 | rsb r3, r1, #0\r | |
132 | and r3, r1, r3\r | |
133 | clz r3, r3\r | |
134 | rsb r0, r3, #31\r | |
135 | mov r1, ip, lsr r0\r | |
136 | rsb r3, r0, #32\r | |
137 | mov r0, r10, lsr r0\r | |
138 | orr ip, r0, ip, asl r3\r | |
139 | str r1, [sp, #12]\r | |
140 | str ip, [sp, #8]\r | |
141 | ldrd r10, [sp, #8]\r | |
142 | b L10\r | |
143 | L32:\r | |
144 | clz r2, r1\r | |
145 | clz r3, ip\r | |
146 | rsb r3, r3, r2\r | |
147 | rsb r4, r3, #31\r | |
148 | mov r2, r0, asl r4\r | |
149 | mvn r1, r3\r | |
150 | and r2, r2, r1, asr #31\r | |
151 | add lr, r3, #33\r | |
152 | str r2, [sp, #8]\r | |
153 | add r2, r3, #1\r | |
154 | mov r3, r3, asr #31\r | |
155 | and r0, r3, r0, asl r1\r | |
156 | mov r3, r10, lsr r2\r | |
157 | orr r3, r3, ip, asl r4\r | |
158 | and r3, r3, r1, asr #31\r | |
159 | orr r0, r0, r3\r | |
160 | mov r3, ip, lsr lr\r | |
161 | str r0, [sp, #12]\r | |
162 | mov r0, r10, lsr lr\r | |
163 | and r5, r3, r2, asr #31\r | |
164 | rsb r3, lr, #31\r | |
165 | mov r3, r3, asr #31\r | |
166 | orr r0, r0, ip, asl r1\r | |
167 | and r3, r3, ip, lsr r2\r | |
168 | and r0, r0, r2, asr #31\r | |
169 | orr r4, r3, r0\r | |
170 | b L29\r | |
171 | L30:\r | |
172 | clz r2, r3\r | |
173 | clz r3, ip\r | |
174 | rsb r3, r3, r2\r | |
175 | cmp r3, #31\r | |
176 | bls L37\r | |
177 | L48:\r | |
178 | cmp r6, #0\r | |
1a0db791 | 179 | stmiane r6, {r10-r11}\r |
1e57a462 | 180 | b L2\r |
181 | L37:\r | |
182 | rsb r1, r3, #31\r | |
183 | mov r0, r0, asl r1\r | |
184 | add lr, r3, #1\r | |
185 | mov r2, #0\r | |
186 | str r0, [sp, #12]\r | |
187 | mov r0, r10, lsr lr\r | |
188 | str r2, [sp, #8]\r | |
189 | sub r2, r3, #31\r | |
190 | and r0, r0, r2, asr #31\r | |
191 | mov r3, ip, lsr lr\r | |
192 | orr r4, r0, ip, asl r1\r | |
193 | and r5, r3, r2, asr #31\r | |
194 | L29:\r | |
195 | mov ip, #0\r | |
196 | mov r10, ip\r | |
197 | b L40\r | |
198 | L41:\r | |
199 | ldr r1, [sp, #12]\r | |
200 | ldr r2, [sp, #8]\r | |
201 | mov r3, r4, lsr #31\r | |
202 | orr r5, r3, r5, asl #1\r | |
203 | mov r3, r1, lsr #31\r | |
204 | orr r4, r3, r4, asl #1\r | |
205 | mov r3, r2, lsr #31\r | |
206 | orr r0, r3, r1, asl #1\r | |
207 | orr r1, ip, r2, asl #1\r | |
208 | ldmia sp, {r2-r3}\r | |
209 | str r0, [sp, #12]\r | |
210 | subs r2, r2, r4\r | |
211 | sbc r3, r3, r5\r | |
212 | str r1, [sp, #8]\r | |
213 | subs r0, r2, #1\r | |
214 | sbc r1, r3, #0\r | |
215 | mov r2, r1, asr #31\r | |
216 | ldmia sp, {r0-r1}\r | |
217 | mov r3, r2\r | |
218 | and ip, r2, #1\r | |
219 | and r3, r3, r1\r | |
220 | and r2, r2, r0\r | |
221 | subs r4, r4, r2\r | |
222 | sbc r5, r5, r3\r | |
223 | add r10, r10, #1\r | |
224 | L40:\r | |
225 | cmp r10, lr\r | |
226 | bne L41\r | |
227 | ldrd r0, [sp, #8]\r | |
228 | adds r0, r0, r0\r | |
229 | adc r1, r1, r1\r | |
230 | cmp r6, #0\r | |
231 | orr r10, r0, ip\r | |
232 | mov r11, r1\r | |
1a0db791 | 233 | stmiane r6, {r4-r5}\r |
1e57a462 | 234 | b L10\r |
235 | L2:\r | |
236 | mov r10, #0\r | |
237 | mov r11, #0\r | |
238 | L10:\r | |
239 | mov r0, r10\r | |
240 | mov r1, r11\r | |
241 | sub sp, r7, #20\r | |
242 | ldmfd sp!, {r10, r11}\r | |
243 | ldmfd sp!, {r4, r5, r6, r7, pc}\r |