Syscall index: 0x1630
Function signature: void App_Optimize(void);
Starts the filesystem optimization operation while displaying a ProgressBar on screen, as if F5 had been pressed in the Memory menu.
Returns when the optimization option is finished or when the user aborts by repeatedly and alternately pressing EXIT and AC/ON.
Calling this from add-ins causes problems, because the optimization moves things around in the storage memory, causing the add-in code to change location. This often results in a SYSTEM ERROR when the syscall returns, or in other undefined behavior.