source: mainline/uspace/lib/c/arch/arm32/src/eabi.S@ ab63b04e

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since ab63b04e was ab63b04e, checked in by Martin Decky <martin@…>, 14 years ago

do not use bx in ARMv4 mode

  • Property mode set to 100644
File size: 2.3 KB
Line 
1#
2# Copyright (c) 2012 Martin Decky
3# All rights reserved.
4#
5# Redistribution and use in source and binary forms, with or without
6# modification, are permitted provided that the following conditions
7# are met:
8#
9# - Redistributions of source code must retain the above copyright
10# notice, this list of conditions and the following disclaimer.
11# - Redistributions in binary form must reproduce the above copyright
12# notice, this list of conditions and the following disclaimer in the
13# documentation and/or other materials provided with the distribution.
14# - The name of the author may not be used to endorse or promote products
15# derived from this software without specific prior written permission.
16#
17# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27#
28
29.text
30
31.global __aeabi_read_tp
32
33.global __aeabi_idiv
34.global __aeabi_uidiv
35
36.global __aeabi_idivmod
37.global __aeabi_uidivmod
38
39.global __aeabi_ldivmod
40.global __aeabi_uldivmod
41
42__aeabi_read_tp:
43 mov r0, r9
44 mov pc, lr
45
46__aeabi_idiv:
47 push {sp, lr}
48 bl __divsi3
49 ldr lr, [sp, #4]
50 add sp, sp, #8
51 mov pc, lr
52
53__aeabi_uidiv:
54 push {sp, lr}
55 bl __udivsi3
56 ldr lr, [sp, #4]
57 add sp, sp, #8
58 mov pc, lr
59
60__aeabi_idivmod:
61 sub sp, sp, #8
62 push {sp, lr}
63 bl __divmodsi3
64 ldr lr, [sp, #4]
65 add sp, sp, #8
66 pop {r1, r2}
67 mov pc, lr
68
69__aeabi_uidivmod:
70 sub sp, sp, #8
71 push {sp, lr}
72 bl __udivmodsi3
73 ldr lr, [sp, #4]
74 add sp, sp, #8
75 pop {r1, r2}
76 mov pc, lr
77
78__aeabi_ldivmod:
79 sub sp, sp, #8
80 push {sp, lr}
81 bl __divmoddi3
82 ldr lr, [sp, #4]
83 add sp, sp, #8
84 pop {r2, r3}
85 mov pc, lr
86
87__aeabi_uldivmod:
88 sub sp, sp, #8
89 push {sp, lr}
90 bl __udivmoddi3
91 ldr lr, [sp, #4]
92 add sp, sp, #8
93 pop {r2, r3}
94 mov pc, lr
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