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f6a83b4a | 1 | /* SI mode divide routines for libgcc for MSP430 |
99dee823 | 2 | Copyright (C) 2012-2021 Free Software Foundation, Inc. |
f6a83b4a DD |
3 | Contributed by Red Hat. |
4 | ||
5 | This file is part of GCC. | |
6 | ||
7 | GCC is free software; you can redistribute it and/or modify it | |
8 | under the terms of the GNU General Public License as published | |
9 | by the Free Software Foundation; either version 3, or (at your | |
10 | option) any later version. | |
11 | ||
12 | GCC is distributed in the hope that it will be useful, but WITHOUT | |
13 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
14 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
15 | License for more details. | |
16 | ||
17 | Under Section 7 of GPL version 3, you are granted additional | |
18 | permissions described in the GCC Runtime Library Exception, version | |
19 | 3.1, as published by the Free Software Foundation. | |
20 | ||
21 | You should have received a copy of the GNU General Public License and | |
22 | a copy of the GCC Runtime Library Exception along with this program; | |
23 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
24 | <http://www.gnu.org/licenses/>. */ | |
25 | ||
26 | typedef int sint32_type __attribute__ ((mode (SI))); | |
27 | typedef unsigned int uint32_type __attribute__ ((mode (SI))); | |
28 | typedef int sint16_type __attribute__ ((mode (HI))); | |
29 | typedef unsigned int uint16_type __attribute__ ((mode (HI))); | |
30 | typedef int sint08_type __attribute__ ((mode (QI))); | |
31 | typedef unsigned int uint08_type __attribute__ ((mode (QI))); | |
32 | typedef int word_type __attribute__ ((mode (__word__))); | |
33 | ||
34 | #define C3B(a,b,c) a##b##c | |
35 | #define C3(a,b,c) C3B(a,b,c) | |
36 | ||
37 | #define UINT_TYPE uint32_type | |
38 | #define SINT_TYPE sint32_type | |
39 | #define BITS_MINUS_1 31 | |
40 | #define NAME_MODE si | |
41 | ||
42 | #include "msp430-divmod.h" | |
04a9ae28 NC |
43 | |
44 | /* ---------------------------------------------------------------------*/ | |
45 | ||
46 | /* There is a typo in the MSP430 ABI document. It calls the unsigned | |
47 | long integer division function __mspabi_divlu when it should be | |
48 | __mspabi_divul. Likewise the unsigned long long integer division | |
49 | function is called __mspabi_divllu when it should be __mspabi_divull. | |
50 | ||
51 | Earlier versions of this toolchain used generate the ABI compliant | |
52 | names, so in order to support object files built with those tools | |
53 | we provide stub functions that call the correct routines. */ | |
54 | ||
55 | asm (".global __mspabi_divlu\n\ | |
56 | .set __mspabi_divlu, __mspabi_divul"); | |
57 | ||
58 | /* We cannot use the same trick for __mspabi_divllu as that is defined | |
59 | in a different file. Instead we create a stub here. The cost of | |
60 | executing the branch instruction will be trivial compared to the | |
61 | cost of executing a long long division. */ | |
62 | ||
63 | #ifdef __MSP430X_LARGE__ | |
64 | asm (".global __mspabi_divllu\n\ | |
65 | __mspabi_divllu:\n\ | |
66 | BRA #__mspabi_divull"); | |
67 | #else | |
68 | asm (".global __mspabi_divllu\n\ | |
69 | __mspabi_divllu:\n\ | |
70 | BR #__mspabi_divull"); | |
71 | #endif |