1 files changed, 42 insertions, 0 deletions
diff --git a/gcc-4.9/libgcc/config/msp430/msp430-mul.h b/gcc-4.9/libgcc/config/msp430/msp430-mul.h
new file mode 100644
index 000000000..29e72a8a7
--- /dev/null
+++ b/gcc-4.9/libgcc/config/msp430/msp430-mul.h
@@ -0,0 +1,42 @@
+/* libgcc routines for RL78
+   Copyright (C) 2005-2014 Free Software Foundation, Inc.
+   Contributed by Red Hat.
+
+   This file is part of GCC.
+
+   GCC 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 3, or (at your
+   option) any later version.
+
+   GCC 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.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+UINT_TYPE C3(__mul,NAME_MODE,3)   (UINT_TYPE, UINT_TYPE);
+UINT_TYPE
+C3(__mul,NAME_MODE,3) (UINT_TYPE a, UINT_TYPE b)
+{
+  UINT_TYPE rv = 0;
+
+  char bit;
+
+  for (bit=0; b && bit<sizeof(UINT_TYPE)*8; bit++)
+    {
+      if (b & 1)
+	rv += a;
+      a <<= 1;
+      b >>= 1;
+    }
+  return rv;
+}