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2ef2b01e A |
1 | #------------------------------------------------------------------------------ |
2 | # | |
d6ebcab7 | 3 | # Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR> |
2ef2b01e | 4 | # |
d6ebcab7 | 5 | # This program and the accompanying materials |
2ef2b01e A |
6 | # are licensed and made available under the terms and conditions of the BSD License |
7 | # which accompanies this distribution. The full text of the license may be found at | |
8 | # http://opensource.org/licenses/bsd-license.php | |
9 | # | |
10 | # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
11 | # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
12 | # | |
13 | #------------------------------------------------------------------------------ | |
14 | ||
2ac288f9 | 15 | .text |
16 | .align 2 | |
17 | GCC_ASM_EXPORT(__udivmoddi4) | |
18 | ||
4e471bfd | 19 | ASM_PFX(__udivmoddi4): |
2ac288f9 | 20 | stmfd sp!, {r4, r5, r6, r7, lr} |
21 | add r7, sp, #12 | |
22 | stmfd sp!, {r10, r11} | |
23 | sub sp, sp, #20 | |
24 | stmia sp, {r2-r3} | |
25 | ldr r6, [sp, #48] | |
26 | orrs r2, r2, r3 | |
27 | mov r10, r0 | |
28 | mov r11, r1 | |
29 | beq L2 | |
30 | subs ip, r1, #0 | |
31 | bne L4 | |
32 | cmp r3, #0 | |
33 | bne L6 | |
34 | cmp r6, #0 | |
35 | beq L8 | |
36 | mov r1, r2 | |
37 | bl ASM_PFX(__umodsi3) | |
38 | mov r1, #0 | |
39 | stmia r6, {r0-r1} | |
2ef2b01e | 40 | L8: |
2ac288f9 | 41 | ldr r1, [sp, #0] |
42 | mov r0, r10 | |
43 | b L45 | |
2ef2b01e | 44 | L6: |
2ac288f9 | 45 | cmp r6, #0 |
46 | movne r1, #0 | |
47 | stmneia r6, {r0-r1} | |
48 | b L2 | |
2ef2b01e | 49 | L4: |
2ac288f9 | 50 | ldr r1, [sp, #0] |
51 | cmp r1, #0 | |
52 | bne L12 | |
53 | ldr r2, [sp, #4] | |
54 | cmp r2, #0 | |
55 | bne L14 | |
56 | cmp r6, #0 | |
57 | beq L16 | |
58 | mov r1, r2 | |
59 | mov r0, r11 | |
60 | bl ASM_PFX(__umodsi3) | |
61 | mov r1, #0 | |
62 | stmia r6, {r0-r1} | |
2ef2b01e | 63 | L16: |
2ac288f9 | 64 | ldr r1, [sp, #4] |
65 | mov r0, r11 | |
2ef2b01e | 66 | L45: |
2ac288f9 | 67 | bl ASM_PFX(__udivsi3) |
2ef2b01e | 68 | L46: |
2ac288f9 | 69 | mov r10, r0 |
70 | mov r11, #0 | |
71 | b L10 | |
2ef2b01e | 72 | L14: |
2ac288f9 | 73 | subs r1, r0, #0 |
74 | bne L18 | |
75 | cmp r6, #0 | |
76 | beq L16 | |
77 | ldr r1, [sp, #4] | |
78 | mov r0, r11 | |
79 | bl ASM_PFX(__umodsi3) | |
80 | mov r4, r10 | |
81 | mov r5, r0 | |
82 | stmia r6, {r4-r5} | |
83 | b L16 | |
2ef2b01e | 84 | L18: |
2ac288f9 | 85 | sub r3, r2, #1 |
86 | tst r2, r3 | |
87 | bne L22 | |
88 | cmp r6, #0 | |
89 | movne r4, r0 | |
90 | andne r5, ip, r3 | |
91 | stmneia r6, {r4-r5} | |
2ef2b01e | 92 | L24: |
2ac288f9 | 93 | rsb r3, r2, #0 |
94 | and r3, r2, r3 | |
95 | clz r3, r3 | |
96 | rsb r3, r3, #31 | |
97 | mov r0, ip, lsr r3 | |
98 | b L46 | |
2ef2b01e | 99 | L22: |
2ac288f9 | 100 | clz r2, r2 |
101 | clz r3, ip | |
102 | rsb r3, r3, r2 | |
103 | cmp r3, #30 | |
104 | bhi L48 | |
105 | rsb r2, r3, #31 | |
106 | add lr, r3, #1 | |
107 | mov r3, r1, asl r2 | |
108 | str r3, [sp, #12] | |
109 | mov r3, r1, lsr lr | |
110 | ldr r0, [sp, #0] | |
111 | mov r5, ip, lsr lr | |
112 | orr r4, r3, ip, asl r2 | |
113 | str r0, [sp, #8] | |
114 | b L29 | |
2ef2b01e | 115 | L12: |
2ac288f9 | 116 | ldr r3, [sp, #4] |
117 | cmp r3, #0 | |
118 | bne L30 | |
119 | sub r3, r1, #1 | |
120 | tst r1, r3 | |
121 | bne L32 | |
122 | cmp r6, #0 | |
123 | andne r3, r3, r0 | |
124 | movne r2, r3 | |
125 | movne r3, #0 | |
126 | stmneia r6, {r2-r3} | |
2ef2b01e | 127 | L34: |
2ac288f9 | 128 | cmp r1, #1 |
129 | beq L10 | |
130 | rsb r3, r1, #0 | |
131 | and r3, r1, r3 | |
132 | clz r3, r3 | |
133 | rsb r0, r3, #31 | |
134 | mov r1, ip, lsr r0 | |
135 | rsb r3, r0, #32 | |
136 | mov r0, r10, lsr r0 | |
137 | orr ip, r0, ip, asl r3 | |
138 | str r1, [sp, #12] | |
139 | str ip, [sp, #8] | |
140 | ldrd r10, [sp, #8] | |
141 | b L10 | |
2ef2b01e | 142 | L32: |
2ac288f9 | 143 | clz r2, r1 |
144 | clz r3, ip | |
145 | rsb r3, r3, r2 | |
146 | rsb r4, r3, #31 | |
147 | mov r2, r0, asl r4 | |
148 | mvn r1, r3 | |
149 | and r2, r2, r1, asr #31 | |
150 | add lr, r3, #33 | |
151 | str r2, [sp, #8] | |
152 | add r2, r3, #1 | |
153 | mov r3, r3, asr #31 | |
154 | and r0, r3, r0, asl r1 | |
155 | mov r3, r10, lsr r2 | |
156 | orr r3, r3, ip, asl r4 | |
157 | and r3, r3, r1, asr #31 | |
158 | orr r0, r0, r3 | |
159 | mov r3, ip, lsr lr | |
160 | str r0, [sp, #12] | |
161 | mov r0, r10, lsr lr | |
162 | and r5, r3, r2, asr #31 | |
163 | rsb r3, lr, #31 | |
164 | mov r3, r3, asr #31 | |
165 | orr r0, r0, ip, asl r1 | |
166 | and r3, r3, ip, lsr r2 | |
167 | and r0, r0, r2, asr #31 | |
168 | orr r4, r3, r0 | |
169 | b L29 | |
2ef2b01e | 170 | L30: |
2ac288f9 | 171 | clz r2, r3 |
172 | clz r3, ip | |
173 | rsb r3, r3, r2 | |
174 | cmp r3, #31 | |
175 | bls L37 | |
2ef2b01e | 176 | L48: |
2ac288f9 | 177 | cmp r6, #0 |
178 | stmneia r6, {r10-r11} | |
179 | b L2 | |
2ef2b01e | 180 | L37: |
2ac288f9 | 181 | rsb r1, r3, #31 |
182 | mov r0, r0, asl r1 | |
183 | add lr, r3, #1 | |
184 | mov r2, #0 | |
185 | str r0, [sp, #12] | |
186 | mov r0, r10, lsr lr | |
187 | str r2, [sp, #8] | |
188 | sub r2, r3, #31 | |
189 | and r0, r0, r2, asr #31 | |
190 | mov r3, ip, lsr lr | |
191 | orr r4, r0, ip, asl r1 | |
192 | and r5, r3, r2, asr #31 | |
2ef2b01e | 193 | L29: |
2ac288f9 | 194 | mov ip, #0 |
195 | mov r10, ip | |
196 | b L40 | |
2ef2b01e | 197 | L41: |
2ac288f9 | 198 | ldr r1, [sp, #12] |
199 | ldr r2, [sp, #8] | |
200 | mov r3, r4, lsr #31 | |
201 | orr r5, r3, r5, asl #1 | |
202 | mov r3, r1, lsr #31 | |
203 | orr r4, r3, r4, asl #1 | |
204 | mov r3, r2, lsr #31 | |
205 | orr r0, r3, r1, asl #1 | |
206 | orr r1, ip, r2, asl #1 | |
207 | ldmia sp, {r2-r3} | |
208 | str r0, [sp, #12] | |
209 | subs r2, r2, r4 | |
210 | sbc r3, r3, r5 | |
211 | str r1, [sp, #8] | |
212 | subs r0, r2, #1 | |
213 | sbc r1, r3, #0 | |
214 | mov r2, r1, asr #31 | |
215 | ldmia sp, {r0-r1} | |
216 | mov r3, r2 | |
217 | and ip, r2, #1 | |
218 | and r3, r3, r1 | |
219 | and r2, r2, r0 | |
220 | subs r4, r4, r2 | |
221 | sbc r5, r5, r3 | |
222 | add r10, r10, #1 | |
2ef2b01e | 223 | L40: |
2ac288f9 | 224 | cmp r10, lr |
225 | bne L41 | |
226 | ldrd r0, [sp, #8] | |
227 | adds r0, r0, r0 | |
228 | adc r1, r1, r1 | |
229 | cmp r6, #0 | |
230 | orr r10, r0, ip | |
231 | mov r11, r1 | |
232 | stmneia r6, {r4-r5} | |
233 | b L10 | |
2ef2b01e | 234 | L2: |
2ac288f9 | 235 | mov r10, #0 |
236 | mov r11, #0 | |
2ef2b01e | 237 | L10: |
2ac288f9 | 238 | mov r0, r10 |
239 | mov r1, r11 | |
240 | sub sp, r7, #20 | |
241 | ldmfd sp!, {r10, r11} | |
242 | ldmfd sp!, {r4, r5, r6, r7, pc} |