diff --git a/entry/ofw/interface.c b/entry/ofw/interface.c
new file mode 100644
index 0000000..7ac9395
--- /dev/null
+++ b/entry/ofw/interface.c
@@ -0,0 +1,47 @@
+#include <ofw.h>
+
+extern void (*ofw)();
+
+void* interpret(char* cmd, ...)
+{
+}
+
+void* set_callback(void* addr)
+{
+	struct
+	{
+        	char* service;
+        	int32_t n_args;
+        	int32_t n_rets;
+        	void* arg;
+        	void* ret;
+	} ofw_arg;
+
+	SERVICE("set-callback", 13, 1, 1);
+
+	ofw_arg.arg = addr;
+
+	ofw(&ofw_arg);
+	return ofw_arg.ret;
+}
+
+void set_symbol_lookup(void* sym_to_value, void* value_to_sym)
+{
+	struct
+	{
+		char* service;
+		int32_t n_args;
+		int32_t n_rets;
+		void* arg1;
+		void* arg2;
+	} ofw_arg;
+
+	SERVICE("set-symbol-lookup", 17, 2, 0);
+
+	ofw_arg.arg1 = sym_to_value;
+	ofw_arg.arg2 = value_to_sym;
+
+	ofw(&ofw_arg);
+}
+
+
diff --git a/entry/ofw/time.c b/entry/ofw/time.c
new file mode 100644
index 0000000..72763d6
--- /dev/null
+++ b/entry/ofw/time.c
@@ -0,0 +1,20 @@
+#include <ofw.h>
+
+extern void (*ofw)();
+
+int32_t milliseconds(void)
+{
+        struct
+        {       
+                char* service;
+                int32_t n_args;
+                int32_t n_rets;
+                int32_t ret;        
+        } ofw_arg;
+ 
+        SERVICE("milliseconds", 13, 0, 1);
+        
+        ofw(&ofw_arg);
+
+	return ofw_arg.ret;
+}