1 //------------------------------------------------------------------------------
3 // Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
5 // This program and the accompanying materials
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
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.
13 //------------------------------------------------------------------------------
17 EXPORT __aeabi_uldivmod
19 AREA Uldivmod, CODE, READONLY
30 stmdb sp!, {r4, r5, r6, lr}
34 orrs ip, r3, r2, lsr #31
35 bne __aeabi_uldivmod_label1
39 addeq r6, r6, #16 ; 0x10
43 addeq r6, r6, #8 ; 0x8
46 addeq r6, r6, #4 ; 0x4
49 addeq r6, r6, #2 ; 0x2
52 addeq r6, r6, #1 ; 0x1
54 __aeabi_uldivmod_label1
55 tst r3, #-2147483648 ; 0x80000000
56 bne __aeabi_uldivmod_label2
58 addeq r6, r6, #16 ; 0x10
62 addeq r6, r6, #8 ; 0x8
65 addeq r6, r6, #4 ; 0x4
68 addeq r6, r6, #2 ; 0x2
70 addeq r6, r6, #1 ; 0x1
71 rsb r3, r6, #32 ; 0x20
73 orr ip, ip, r2, lsr r3
76 __aeabi_uldivmod_label2
84 subcs r4, r4, ip, lsl #1
85 addcs r3, r3, #2 ; 0x2
89 add r2, r6, #32 ; 0x20
92 bcc _ll_udiv_small_label1
93 orrs r0, r4, r5, lsr #30
96 subeq r2, r2, #32 ; 0x20
100 bcc _ll_udiv_small_label2
102 moveq r4, r4, lsl #16
103 addeq r1, r1, #16 ; 0x10
104 _ll_udiv_small_label2
107 bcc _ll_udiv_small_label3
110 addeq r1, r1, #8 ; 0x8
111 _ll_udiv_small_label3
112 rsb r0, r1, #32 ; 0x20
114 orr r4, r4, r5, lsr r0
117 bcc _ll_udiv_small_label5
121 adds r0, r0, r0, lsl #1
122 add pc, pc, r0, lsl #2
124 _ll_udiv_small_label4
126 adcs r4, ip, r4, lsl #1
129 adcs r4, ip, r4, lsl #1
132 adcs r4, ip, r4, lsl #1
135 adcs r4, ip, r4, lsl #1
138 adcs r4, ip, r4, lsl #1
141 adcs r4, ip, r4, lsl #1
144 adcs r4, ip, r4, lsl #1
147 adcs r4, ip, r4, lsl #1
151 bpl _ll_udiv_small_label4
152 _ll_udiv_small_label5
154 bic r4, r4, r2, lsl r6
157 add r1, r1, r3, lsl r6
159 ldmia sp!, {r4, r5, r6, pc}
167 adcs r3, r3, #0 ; 0x0
172 adcs r3, r3, #0 ; 0x0
177 adcs r3, r3, #0 ; 0x0
179 rsbs lr, lr, #0 ; 0x0
182 bcc _ll_udiv_big_label1
184 moveq r4, r4, lsl #16
185 addeq r1, r1, #16 ; 0x10
189 bcc _ll_udiv_big_label2
192 addeq r1, r1, #8 ; 0x8
194 rsb r0, r1, #32 ; 0x20
196 orr r4, r4, r5, lsr r0
199 bcc _ll_udiv_big_label4
203 adds r0, r0, r0, lsl #1
204 add pc, pc, r0, lsl #3
233 bpl _ll_udiv_big_label3
237 bic r5, r5, r2, lsl r6
242 bic r4, r4, r3, lsl r6
245 orr r2, r2, r4, ror r6
247 ldmia sp!, {r4, r5, r6, pc}
256 ldmia sp!, {r4, r5, r6, pc}
259 ldmia sp!, {r4, r5, r6, lr}