1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
//------------------------------------------------------------------------------
//
// Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
//
// This program and the accompanying materials
// are licensed and made available under the terms and conditions of the BSD License
// which accompanies this distribution. The full text of the license may be found at
// http://opensource.org/licenses/bsd-license.php
//
// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
//
//------------------------------------------------------------------------------
.text
.align 2
.globl ASM_PFX(__aeabi_ldivmod)
INTERWORK_FUNC(__aeabi_ldivmod)
//
// A pair of (unsigned) long longs is returned in {{r0, r1}, {r2, r3}},
// the quotient in {r0, r1}, and the remainder in {r2, r3}.
//
//__value_in_regs lldiv_t
//EFIAPI
//__aeabi_ldivmod (
// IN UINT64 Dividen
// IN UINT64 Divisor
// )//
//
ASM_PFX(__aeabi_ldivmod):
push {r4,lr}
asrs r4,r1,#1
eor r4,r4,r3,LSR #1
bpl L_Test1
rsbs r0,r0,#0
rsc r1,r1,#0
L_Test1:
tst r3,r3
bpl L_Test2
rsbs r2,r2,#0
rsc r3,r3,#0
L_Test2:
bl ASM_PFX(__aeabi_uldivmod)
tst r4,#0x40000000
beq L_Test3
rsbs r0,r0,#0
rsc r1,r1,#0
L_Test3:
tst r4,#0x80000000
beq L_Exit
rsbs r2,r2,#0
rsc r3,r3,#0
L_Exit:
pop {r4,pc}
|
