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Diffstat (limited to 'arch/arm/lib/ashrdi3.S')
-rw-r--r-- | arch/arm/lib/ashrdi3.S | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/arm/lib/ashrdi3.S b/arch/arm/lib/ashrdi3.S new file mode 100644 index 000000000000..86fb2a90c301 --- /dev/null +++ b/arch/arm/lib/ashrdi3.S | |||
@@ -0,0 +1,48 @@ | |||
1 | /* Copyright 1995, 1996, 1998, 1999, 2000, 2003, 2004, 2005 | ||
2 | Free Software Foundation, Inc. | ||
3 | |||
4 | This file is free software; you can redistribute it and/or modify it | ||
5 | under the terms of the GNU General Public License as published by the | ||
6 | Free Software Foundation; either version 2, or (at your option) any | ||
7 | later version. | ||
8 | |||
9 | In addition to the permissions in the GNU General Public License, the | ||
10 | Free Software Foundation gives you unlimited permission to link the | ||
11 | compiled version of this file into combinations with other programs, | ||
12 | and to distribute those combinations without any restriction coming | ||
13 | from the use of this file. (The General Public License restrictions | ||
14 | do apply in other respects; for example, they cover modification of | ||
15 | the file, and distribution when not linked into a combine | ||
16 | executable.) | ||
17 | |||
18 | This file is distributed in the hope that it will be useful, but | ||
19 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
21 | General Public License for more details. | ||
22 | |||
23 | You should have received a copy of the GNU General Public License | ||
24 | along with this program; see the file COPYING. If not, write to | ||
25 | the Free Software Foundation, 51 Franklin Street, Fifth Floor, | ||
26 | Boston, MA 02110-1301, USA. */ | ||
27 | |||
28 | |||
29 | #include <linux/linkage.h> | ||
30 | |||
31 | #ifdef __ARMEB__ | ||
32 | #define al r1 | ||
33 | #define ah r0 | ||
34 | #else | ||
35 | #define al r0 | ||
36 | #define ah r1 | ||
37 | #endif | ||
38 | |||
39 | ENTRY(__ashrdi3) | ||
40 | |||
41 | subs r3, r2, #32 | ||
42 | rsb ip, r2, #32 | ||
43 | movmi al, al, lsr r2 | ||
44 | movpl al, ah, asr r3 | ||
45 | orrmi al, al, ah, lsl ip | ||
46 | mov ah, ah, asr r2 | ||
47 | mov pc, lr | ||
48 | |||