Initial commit

arch/c6x/lib/llshru.S

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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_llshru(uint64_t val, uint shift)
+
+#include <linux/linkage.h>
+
+	.text
+ENTRY(__c6xabi_llshru)
+	 mv	.l1x	B4,A1
+   [!A1] b	.s2	B3		; return if zero shift count
+	 mvk	.s1	32,A0
+	 sub	.d1	A0,A1,A0
+	 cmplt	.l1	0,A0,A2
+   [A2]  shl	.s1	A5,A0,A0
+	 nop
+   [!A2] neg	.l1	A0,A4
+|| [A2]  shru	.s1	A4,A1,A4
+   [!A2] shru	.s1	A5,A4,A4
+|| [A2]  or	.d1	A4,A0,A4
+|| [!A2] mvk	.l1	0,A5
+   [A2]  shru	.s1	A5,A1,A5
+	 bnop	.s2	B3,5
+ENDPROC(__c6xabi_llshru)