--- /dev/null
+#ifndef __LUNAIX_ARCH_MULDIV64_H
+#define __LUNAIX_ARCH_MULDIV64_H
+
+
+#include <lunaix/spike.h>
+#include <lunaix/types.h>
+
+u64_t
+udiv64(u64_t n, unsigned int base);
+
+unsigned int
+umod64(u64_t n, unsigned int base);
+
+
+#endif /* __LUNAIX_ARCH_MULDIV64_H */