function module' interface defined

function.h

@@ -2,5 +2,18 @@
 #include <stdint.h>
 #include <string>
 
-const uint32_t function_create(const std::string name);
-void function_parameter_add(const uint32_t id, const std::string name, const )
+// Register a new function. Returns false if a function with the same name already exists
+const bool function_register(const std::string name, const uint32_t address);
+
+// Add a parameter to the last registered function
+void function_parameter_add(const std::string name, const int type);
+
+
+// Retrieve the address of the specified function, or zero if there's no such function
+const uint32_t function_get_address(const std::string name);
+
+// Retrieve the number of parameters of the last searched function
+const int function_get_num_parameters();
+
+// Retrieve the type of the nth parameter of the last searched function
+const int function_get_parameter_type(const int index);