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3402aac7 | 1 | #------------------------------------------------------------------------------\r |
1e57a462 | 2 | #\r |
3 | # Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r | |
4 | #\r | |
4059386c | 5 | # SPDX-License-Identifier: BSD-2-Clause-Patent\r |
1e57a462 | 6 | #\r |
7 | #------------------------------------------------------------------------------\r | |
8 | \r | |
903e3124 AB |
9 | #include <AsmMacroIoLib.h>\r |
10 | \r | |
1a0db791 | 11 | .syntax unified\r |
3402aac7 | 12 | \r |
903e3124 | 13 | ASM_FUNC(__udivmoddi4)\r |
1e57a462 | 14 | stmfd sp!, {r4, r5, r6, r7, lr}\r |
15 | add r7, sp, #12\r | |
16 | stmfd sp!, {r10, r11}\r | |
17 | sub sp, sp, #20\r | |
18 | stmia sp, {r2-r3}\r | |
19 | ldr r6, [sp, #48]\r | |
20 | orrs r2, r2, r3\r | |
21 | mov r10, r0\r | |
22 | mov r11, r1\r | |
23 | beq L2\r | |
24 | subs ip, r1, #0\r | |
25 | bne L4\r | |
26 | cmp r3, #0\r | |
27 | bne L6\r | |
28 | cmp r6, #0\r | |
29 | beq L8\r | |
30 | mov r1, r2\r | |
31 | bl ASM_PFX(__umodsi3)\r | |
32 | mov r1, #0\r | |
33 | stmia r6, {r0-r1}\r | |
34 | L8:\r | |
35 | ldr r1, [sp, #0]\r | |
36 | mov r0, r10\r | |
37 | b L45\r | |
38 | L6:\r | |
39 | cmp r6, #0\r | |
40 | movne r1, #0\r | |
1a0db791 | 41 | stmiane r6, {r0-r1}\r |
1e57a462 | 42 | b L2\r |
43 | L4:\r | |
44 | ldr r1, [sp, #0]\r | |
45 | cmp r1, #0\r | |
46 | bne L12\r | |
47 | ldr r2, [sp, #4]\r | |
48 | cmp r2, #0\r | |
49 | bne L14\r | |
50 | cmp r6, #0\r | |
51 | beq L16\r | |
52 | mov r1, r2\r | |
53 | mov r0, r11\r | |
54 | bl ASM_PFX(__umodsi3)\r | |
55 | mov r1, #0\r | |
56 | stmia r6, {r0-r1}\r | |
57 | L16:\r | |
58 | ldr r1, [sp, #4]\r | |
59 | mov r0, r11\r | |
60 | L45:\r | |
61 | bl ASM_PFX(__udivsi3)\r | |
62 | L46:\r | |
63 | mov r10, r0\r | |
64 | mov r11, #0\r | |
65 | b L10\r | |
66 | L14:\r | |
67 | subs r1, r0, #0\r | |
68 | bne L18\r | |
69 | cmp r6, #0\r | |
70 | beq L16\r | |
71 | ldr r1, [sp, #4]\r | |
72 | mov r0, r11\r | |
73 | bl ASM_PFX(__umodsi3)\r | |
74 | mov r4, r10\r | |
75 | mov r5, r0\r | |
76 | stmia r6, {r4-r5}\r | |
77 | b L16\r | |
78 | L18:\r | |
79 | sub r3, r2, #1\r | |
80 | tst r2, r3\r | |
81 | bne L22\r | |
82 | cmp r6, #0\r | |
83 | movne r4, r0\r | |
84 | andne r5, ip, r3\r | |
1a0db791 | 85 | stmiane r6, {r4-r5}\r |
1e57a462 | 86 | L24:\r |
87 | rsb r3, r2, #0\r | |
88 | and r3, r2, r3\r | |
89 | clz r3, r3\r | |
90 | rsb r3, r3, #31\r | |
91 | mov r0, ip, lsr r3\r | |
92 | b L46\r | |
93 | L22:\r | |
94 | clz r2, r2\r | |
95 | clz r3, ip\r | |
96 | rsb r3, r3, r2\r | |
97 | cmp r3, #30\r | |
98 | bhi L48\r | |
99 | rsb r2, r3, #31\r | |
100 | add lr, r3, #1\r | |
101 | mov r3, r1, asl r2\r | |
102 | str r3, [sp, #12]\r | |
103 | mov r3, r1, lsr lr\r | |
104 | ldr r0, [sp, #0]\r | |
105 | mov r5, ip, lsr lr\r | |
106 | orr r4, r3, ip, asl r2\r | |
107 | str r0, [sp, #8]\r | |
108 | b L29\r | |
109 | L12:\r | |
110 | ldr r3, [sp, #4]\r | |
111 | cmp r3, #0\r | |
112 | bne L30\r | |
113 | sub r3, r1, #1\r | |
114 | tst r1, r3\r | |
115 | bne L32\r | |
116 | cmp r6, #0\r | |
117 | andne r3, r3, r0\r | |
118 | movne r2, r3\r | |
119 | movne r3, #0\r | |
1a0db791 | 120 | stmiane r6, {r2-r3}\r |
1e57a462 | 121 | L34:\r |
122 | cmp r1, #1\r | |
123 | beq L10\r | |
124 | rsb r3, r1, #0\r | |
125 | and r3, r1, r3\r | |
126 | clz r3, r3\r | |
127 | rsb r0, r3, #31\r | |
128 | mov r1, ip, lsr r0\r | |
129 | rsb r3, r0, #32\r | |
130 | mov r0, r10, lsr r0\r | |
131 | orr ip, r0, ip, asl r3\r | |
132 | str r1, [sp, #12]\r | |
133 | str ip, [sp, #8]\r | |
134 | ldrd r10, [sp, #8]\r | |
135 | b L10\r | |
136 | L32:\r | |
137 | clz r2, r1\r | |
138 | clz r3, ip\r | |
139 | rsb r3, r3, r2\r | |
140 | rsb r4, r3, #31\r | |
141 | mov r2, r0, asl r4\r | |
142 | mvn r1, r3\r | |
143 | and r2, r2, r1, asr #31\r | |
144 | add lr, r3, #33\r | |
145 | str r2, [sp, #8]\r | |
146 | add r2, r3, #1\r | |
147 | mov r3, r3, asr #31\r | |
148 | and r0, r3, r0, asl r1\r | |
149 | mov r3, r10, lsr r2\r | |
150 | orr r3, r3, ip, asl r4\r | |
151 | and r3, r3, r1, asr #31\r | |
152 | orr r0, r0, r3\r | |
153 | mov r3, ip, lsr lr\r | |
154 | str r0, [sp, #12]\r | |
155 | mov r0, r10, lsr lr\r | |
156 | and r5, r3, r2, asr #31\r | |
157 | rsb r3, lr, #31\r | |
158 | mov r3, r3, asr #31\r | |
159 | orr r0, r0, ip, asl r1\r | |
160 | and r3, r3, ip, lsr r2\r | |
161 | and r0, r0, r2, asr #31\r | |
162 | orr r4, r3, r0\r | |
163 | b L29\r | |
164 | L30:\r | |
165 | clz r2, r3\r | |
166 | clz r3, ip\r | |
167 | rsb r3, r3, r2\r | |
168 | cmp r3, #31\r | |
169 | bls L37\r | |
170 | L48:\r | |
171 | cmp r6, #0\r | |
1a0db791 | 172 | stmiane r6, {r10-r11}\r |
1e57a462 | 173 | b L2\r |
174 | L37:\r | |
175 | rsb r1, r3, #31\r | |
176 | mov r0, r0, asl r1\r | |
177 | add lr, r3, #1\r | |
178 | mov r2, #0\r | |
179 | str r0, [sp, #12]\r | |
180 | mov r0, r10, lsr lr\r | |
181 | str r2, [sp, #8]\r | |
182 | sub r2, r3, #31\r | |
183 | and r0, r0, r2, asr #31\r | |
184 | mov r3, ip, lsr lr\r | |
185 | orr r4, r0, ip, asl r1\r | |
186 | and r5, r3, r2, asr #31\r | |
187 | L29:\r | |
188 | mov ip, #0\r | |
189 | mov r10, ip\r | |
190 | b L40\r | |
191 | L41:\r | |
192 | ldr r1, [sp, #12]\r | |
193 | ldr r2, [sp, #8]\r | |
194 | mov r3, r4, lsr #31\r | |
195 | orr r5, r3, r5, asl #1\r | |
196 | mov r3, r1, lsr #31\r | |
197 | orr r4, r3, r4, asl #1\r | |
198 | mov r3, r2, lsr #31\r | |
199 | orr r0, r3, r1, asl #1\r | |
200 | orr r1, ip, r2, asl #1\r | |
201 | ldmia sp, {r2-r3}\r | |
202 | str r0, [sp, #12]\r | |
203 | subs r2, r2, r4\r | |
204 | sbc r3, r3, r5\r | |
205 | str r1, [sp, #8]\r | |
206 | subs r0, r2, #1\r | |
207 | sbc r1, r3, #0\r | |
208 | mov r2, r1, asr #31\r | |
209 | ldmia sp, {r0-r1}\r | |
210 | mov r3, r2\r | |
211 | and ip, r2, #1\r | |
212 | and r3, r3, r1\r | |
213 | and r2, r2, r0\r | |
214 | subs r4, r4, r2\r | |
215 | sbc r5, r5, r3\r | |
216 | add r10, r10, #1\r | |
217 | L40:\r | |
218 | cmp r10, lr\r | |
219 | bne L41\r | |
220 | ldrd r0, [sp, #8]\r | |
221 | adds r0, r0, r0\r | |
222 | adc r1, r1, r1\r | |
223 | cmp r6, #0\r | |
224 | orr r10, r0, ip\r | |
225 | mov r11, r1\r | |
1a0db791 | 226 | stmiane r6, {r4-r5}\r |
1e57a462 | 227 | b L10\r |
228 | L2:\r | |
229 | mov r10, #0\r | |
230 | mov r11, #0\r | |
231 | L10:\r | |
232 | mov r0, r10\r | |
233 | mov r1, r11\r | |
234 | sub sp, r7, #20\r | |
235 | ldmfd sp!, {r10, r11}\r | |
236 | ldmfd sp!, {r4, r5, r6, r7, pc}\r |