]>
Commit | Line | Data |
---|---|---|
f6a83b4a | 1 | /* libgcc routines for RL78 |
a5544970 | 2 | Copyright (C) 2005-2019 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 | UINT_TYPE C3(__mul,NAME_MODE,3) (UINT_TYPE, UINT_TYPE); | |
27 | UINT_TYPE | |
28 | C3(__mul,NAME_MODE,3) (UINT_TYPE a, UINT_TYPE b) | |
29 | { | |
30 | UINT_TYPE rv = 0; | |
31 | ||
32 | char bit; | |
33 | ||
34 | for (bit=0; b && bit<sizeof(UINT_TYPE)*8; bit++) | |
35 | { | |
36 | if (b & 1) | |
37 | rv += a; | |
38 | a <<= 1; | |
39 | b >>= 1; | |
40 | } | |
41 | return rv; | |
42 | } |