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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(__udivsi3)\r | |
19 | \r | |
20 | ASM_PFX(__udivsi3):\r | |
21 | cmp r1, #0\r | |
22 | cmpne r0, #0\r | |
23 | stmfd sp!, {r4, r5, r7, lr}\r | |
24 | add r7, sp, #8\r | |
25 | beq L2\r | |
26 | clz r2, r1\r | |
27 | clz r3, r0\r | |
28 | rsb r3, r3, r2\r | |
29 | cmp r3, #31\r | |
30 | bhi L2\r | |
1a0db791 | 31 | ldmfdeq sp!, {r4, r5, r7, pc}\r |
1e57a462 | 32 | add r5, r3, #1\r |
33 | rsb r3, r3, #31\r | |
34 | mov lr, #0\r | |
35 | mov r2, r0, asl r3\r | |
36 | mov ip, r0, lsr r5\r | |
37 | mov r4, lr\r | |
38 | b L8\r | |
39 | L9:\r | |
40 | mov r0, r2, lsr #31\r | |
41 | orr ip, r0, ip, asl #1\r | |
42 | orr r2, r3, lr\r | |
43 | rsb r3, ip, r1\r | |
44 | sub r3, r3, #1\r | |
45 | and r0, r1, r3, asr #31\r | |
46 | mov lr, r3, lsr #31\r | |
47 | rsb ip, r0, ip\r | |
48 | add r4, r4, #1\r | |
49 | L8:\r | |
50 | cmp r4, r5\r | |
51 | mov r3, r2, asl #1\r | |
52 | bne L9\r | |
53 | orr r0, r3, lr\r | |
54 | ldmfd sp!, {r4, r5, r7, pc}\r | |
55 | L2:\r | |
56 | mov r0, #0\r | |
57 | ldmfd sp!, {r4, r5, r7, pc}\r | |
58 | \r |