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authorHeiko Schocher <heiko.schocher@invitel.hu>2009-07-23 13:27:04 +0200
committerWolfgang Denk <wd@denx.de>2009-07-27 00:11:37 +0200
commitdeec15b3064d3bb0189aede3c2921fd7ee401a0f (patch)
tree6c45d7ee77309f7930c6714f157ba04ea58f5964 /lib_arm/_lshrdi3.S
parent52b1bf2c5cd2f8af880dab503d0039b35570665b (diff)
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arm: add _lshrdi3.S
Signed-off-by: Heiko Schocher <hs@denx.de>
Diffstat (limited to 'lib_arm/_lshrdi3.S')
-rw-r--r--lib_arm/_lshrdi3.S46
1 files changed, 46 insertions, 0 deletions
diff --git a/lib_arm/_lshrdi3.S b/lib_arm/_lshrdi3.S
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+/* Copyright 1995, 1996, 1998, 1999, 2000, 2003, 2004, 2005
+ Free Software Foundation, Inc.
+
+This file is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+In addition to the permissions in the GNU General Public License, the
+Free Software Foundation gives you unlimited permission to link the
+compiled version of this file into combinations with other programs,
+and to distribute those combinations without any restriction coming
+from the use of this file. (The General Public License restrictions
+do apply in other respects; for example, they cover modification of
+the file, and distribution when not linked into a combine
+executable.)
+
+This file is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; see the file COPYING. If not, write to
+the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
+
+
+#ifdef __ARMEB__
+#define al r1
+#define ah r0
+#else
+#define al r0
+#define ah r1
+#endif
+
+.globl __lshrdi3
+__lshrdi3:
+
+ subs r3, r2, #32
+ rsb ip, r2, #32
+ movmi al, al, lsr r2
+ movpl al, ah, lsr r3
+ orrmi al, al, ah, lsl ip
+ mov ah, ah, lsr r2
+ mov pc, lr