h6. [[OS SWI Calls]] h6(. » [[OS_Args]] h6((. » OS_Args 3 h2. OS_Args 3 h5. (SWI &09) |_<^{width:3em}. Entry | | |<^. R0|<^. 3 (reason code) | |<^. R1|<^. File handle | |<^. R2|<^. Extent | |_<^{width:3em}. Exit || |<^. R0|<^. Preserved | |<^. R1|<^. Preserved | |<^. R2|<^. Preserved| h4. Use The purpose of this call is to set the extent of a file. h4. Notes Any new space allocated when setting the extent will be filled with zeros. h4. See also * [[OS_Args]]