h6. [[OS SWI Calls]] h6(. » [[OS_FSControl]] h6((. » OS_FSControl 47 h2. OS_ FSControl 47 h5. (SWI &29) |_<^{width:4em}. Entry | | |<^. R0 |<^. 47 (&2F) | |<^. R1 |<^. Pointer to name of object| |_<^{width:4em}. Exit | | |<^. R0|<^. Preserved| |<^. R1|<^. Preserved| |<^. R2|<^. [[Filing System Option 4|Boot option]]| h4. Use The purpose of this call is to read the boot option of the disc or image file that holds a specified object. h4. See also * [[Filing System Option 4]] * [[OS_FSControl]]