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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 | |||
