Initial revision
diff --git a/contiki-cpc/arch/arch.c b/contiki-cpc/arch/arch.c
new file mode 100644
index 0000000..b090326
--- /dev/null
+++ b/contiki-cpc/arch/arch.c
@@ -0,0 +1,18 @@
+#include "clock.h"
+#include "arch.h"
+
+extern clock_time_t _clock_val;
+
+clock_time_t clock_time()
+{
+	return _clock_val;
+}
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+
+int ctk_arch_isprint(char c)
+{
+	return isprint(c);
+}