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8689682c AT |
1 | /* Common target dependent code for GDB on ARM systems. |
2 | ||
3 | Copyright (C) 1988-2015 Free Software Foundation, Inc. | |
4 | ||
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include "common-defs.h" | |
21 | #include "arm.h" | |
22 | ||
23 | /* Return the size in bytes of the complete Thumb instruction whose | |
24 | first halfword is INST1. */ | |
25 | ||
26 | int | |
27 | thumb_insn_size (unsigned short inst1) | |
28 | { | |
29 | if ((inst1 & 0xe000) == 0xe000 && (inst1 & 0x1800) != 0) | |
30 | return 4; | |
31 | else | |
32 | return 2; | |
33 | } |