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authorMinkyu Kang <mk7.kang@samsung.com>2010-04-19 10:26:18 +0900
committerMinkyu Kang <mk7.kang@samsung.com>2010-04-19 10:26:18 +0900
commit83653121d7382fccfe329cb732f77f116341ef1d (patch)
tree0b1ce6764252af15dfb2614372de98a44a7ec61f /arch/nios2/lib/mult.c
parent0f1f21a345e02a68ec16f7ab9e7dc687f9276089 (diff)
parent07739bcef5da07cc4a4edef8b91014ccc332eda3 (diff)
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Merge branch 'master' of git://git.denx.de/u-boot-arm
Conflicts: cpu/arm1176/cpu.c cpu/arm1176/start.S cpu/arm_cortexa8/s5pc1xx/Makefile cpu/arm_cortexa8/s5pc1xx/clock.c drivers/serial/serial_s5p.c include/asm-arm/arch-s5pc1xx/clk.h include/asm-arm/arch-s5pc1xx/gpio.h include/asm-arm/arch-s5pc1xx/uart.h Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Diffstat (limited to 'arch/nios2/lib/mult.c')
-rw-r--r--arch/nios2/lib/mult.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/arch/nios2/lib/mult.c b/arch/nios2/lib/mult.c
new file mode 100644
index 0000000..ec8139e
--- /dev/null
+++ b/arch/nios2/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) */