- /* possible function type values that are enumerated */
-#define EMBRYO_FUNCTION_NONE 0x7fffffff /* An invalid/non existent function */
-#define EMBRYO_FUNCTION_MAIN -1 /* Start at program entry point */
-#define EMBRYO_FUNCTION_CONT -2 /* Continue from last address */
- /** An invalid cell reference */
-#define EMBRYO_CELL_NONE 0x7fffffff