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authorPeter Tyser <ptyser@xes-inc.com>2010-04-12 22:28:04 -0500
committerWolfgang Denk <wd@denx.de>2010-04-13 09:13:03 +0200
commitea0364f1bbfed1e3ea711147420875cf338fe77a (patch)
tree15c051bc4d2e94c1661c73e1b87c22c7beda7c24 /arch/nios/lib/mult.c
parent89f39e177e7b0152aa1d3152baa25d986e36cdcf (diff)
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Move lib_$ARCH directories to arch/$ARCH/lib
Also move lib_$ARCH/config.mk to arch/$ARCH/config.mk This change is intended to clean up the top-level directory structure and more closely mimic Linux's directory organization. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'arch/nios/lib/mult.c')
-rw-r--r--arch/nios/lib/mult.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/arch/nios/lib/mult.c b/arch/nios/lib/mult.c
new file mode 100644
index 0000000..ec8139e
--- /dev/null
+++ b/arch/nios/lib/mult.c
@@ -0,0 +1,56 @@
+/*
+ * This file is part of GNU CC.
+ *
+ * GNU CC 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.
+ *
+ * GNU CC 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 GNU CC; see the file COPYING. If not, write
+ * to the Free Software Foundation, 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+
+#include <common.h>
+
+#if !defined(CONFIG_SYS_NIOS_MULT_HW) && !defined(CONFIG_SYS_NIOS_MULT_MSTEP)
+
+#include "math.h"
+
+USItype __mulsi3 (USItype a, USItype b)
+{
+ USItype c = 0;
+
+ while (a != 0) {
+ if (a & 1)
+ c += b;
+ a >>= 1;
+ b <<= 1;
+ }
+
+ return c;
+}
+
+
+UHItype __mulhi3 (UHItype a, UHItype b)
+{
+ UHItype c = 0;
+
+ while (a != 0) {
+ if (a & 1)
+ c += b;
+ a >>= 1;
+ b <<= 1;
+ }
+
+ return c;
+}
+
+#endif /*!defined(CONFIG_SYS_NIOS_MULT_HW) && !defined(CONFIG_SYS_NIOS_MULT_MSTEP) */