diff --git a/memset.c b/memset.c
new file mode 100644
index 0000000000..e034dbeae5
--- /dev/null
+++ b/memset.c
@@ -0,0 +1,17 @@
+#include "config.h"
+
+#ifdef USE_FASTMEMSET
+#if defined(HAVE_SSE) || defined(HAVE_SSE2)
+/* (C) 2001 Csabai Csaba <csibi@diablo.ovinet.hu> */
+inline void *fast_memset(void *ptr, long val, long num) 
+{
+    __asm__ __volatile__(
+	"cmpxchg8 (%2)"
+	: "=a" (val), "=d" (num)
+	: "r" (ptr), "0" (val), "1" (num)
+	:"memory");
+
+    return(ptr);
+}
+#endif
+#endif