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authorAurelien Jacquiot <a-jacquiot@ti.com>2011-10-04 19:15:51 +0400
committerMark Salter <msalter@redhat.com>2011-10-07 03:48:23 +0400
commit09831ca73443bd819ad7993db5409b19c899ba33 (patch)
tree4558fb0a5e0e1fcd8582be2155cd9c7498e429db /arch/c6x/lib/llshl.S
parenta7f626c1948ab6178d2338831c5ffea7385e9f7f (diff)
downloadlinux-09831ca73443bd819ad7993db5409b19c899ba33.tar.xz
C6X: library code
Original port to early 2.6 kernel using TI COFF toolchain. Brought up to date by Mark Salter <msalter@redhat.com> Signed-off-by: Aurelien Jacquiot <a-jacquiot@ti.com> Signed-off-by: Mark Salter <msalter@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
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+;; Copyright (C) 2010 Texas Instruments Incorporated
+;; Contributed by Mark Salter <msalter@redhat.com>.
+;;
+;; This program 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 of the License, or
+;; (at your option) any later version.
+;;
+;; This program 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; if not, write to the Free Software
+;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+;; uint64_t __c6xabi_llshl(uint64_t val, uint shift)
+
+#include <linux/linkage.h>
+
+ .text
+ENTRY(__c6xabi_llshl)
+ mv .l1x B4,A1
+ [!A1] b .s2 B3 ; just return if zero shift
+ mvk .s1 32,A0
+ sub .d1 A0,A1,A0
+ cmplt .l1 0,A0,A2
+ [A2] shru .s1 A4,A0,A0
+ [!A2] neg .l1 A0,A5
+|| [A2] shl .s1 A5,A1,A5
+ [!A2] shl .s1 A4,A5,A5
+|| [A2] or .d1 A5,A0,A5
+|| [!A2] mvk .l1 0,A4
+ [A2] shl .s1 A4,A1,A4
+ bnop .s2 B3,5
+ENDPROC(__c6xabi_llshl)