source: mainline/uspace/lib/c/arch/arm32/src/eabi.S@ c127e1c

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since c127e1c was d11a181, checked in by Martin Decky <martin@…>, 13 years ago

finally unbreak the ARM EABI division and modulo wrappers

  • 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 {lr}
48 bl __divsi3
49 pop {lr}
50 mov pc, lr
51
52__aeabi_uidiv:
53 push {lr}
54 bl __udivsi3
55 pop {lr}
56 mov pc, lr
57
58__aeabi_idivmod:
59 push {lr}
60 sub sp, sp, #12
61 add r2, sp, #4
62 bl __udivmodsi3
63 ldr r1, [sp, #4]
64 add sp, sp, #12
65 pop {lr}
66 mov pc, lr
67
68__aeabi_uidivmod:
69 push {lr}
70 sub sp, sp, #12
71 add r2, sp, #4
72 bl __udivmodsi3
73 ldr r1, [sp, #4]
74 add sp, sp, #12
75 pop {lr}
76 mov pc, lr
77
78__aeabi_ldivmod:
79 push {lr}
80 sub sp, sp, #24
81 push {sp}
82 bl __divmoddi3
83 add sp, sp, #4
84 pop {r2, r3}
85 add sp, sp, #16
86 pop {lr}
87 mov pc, lr
88
89__aeabi_uldivmod:
90 push {lr}
91 sub sp, sp, #24
92 push {sp}
93 bl __udivmoddi3
94 add sp, sp, #4
95 pop {r2, r3}
96 add sp, sp, #16
97 pop {lr}
98 mov pc, lr
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