Hi there, I am porting Rogue as I wrote before. Now I have to make a lot of changes to some functions that read/write files. Unfortunately, I have not yet been familiar with TIOS and could not find such kind of file APIs. Perhaps, I can use SymAdd() and other functions declared in vat.h. Does anyone know other APIs that can be used to save/load data into the archive memory of TI-89? Best regard, Hisashi Adachi