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-rw-r--r--gcc-4.9/libgcc/config/msp430/mpy.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc-4.9/libgcc/config/msp430/mpy.c b/gcc-4.9/libgcc/config/msp430/mpy.c
new file mode 100644
index 000000000..57cffd0ba
--- /dev/null
+++ b/gcc-4.9/libgcc/config/msp430/mpy.c
@@ -0,0 +1,15 @@
+/* Public domain. */
+extern int __mulhi3 (int, int);
+
+int
+__mulhi3 (int x, int y)
+{
+ volatile int rv = 0;
+
+ while (y > 0)
+ {
+ rv += x;
+ y --;
+ }
+ return rv;
+}