h6. [[OS SWI Calls]] h6(. » [[OS_FSControl]] h6((. » OS_FSControl 43 h2. OS_ FSControl 43 h5. (SWI &29) |_<^{width:4em}. Entry | | |<^. R0 |<^. 43 (&2B) | |_<^{width:4em}. Exit | | |\2<^. All registers preserved| h4. Use The purpose of this call is to unset the Currently Selected Directory (CSD). h4. Notes To set the CSD use [[OS_FSControl 0]]. h4. See also * [[OS_FSControl]] * [[OS_FSControl 0]]