h6. [[OS SWI Calls]] h6(. » [[OS_Args]] h6((. » OS_Args 6 h2. OS_Args 6 h5. (SWI &09) |_<^{width:3em}. Entry | | |<^. R0|<^. 6 (reason code) | |<^. R1|<^. File handle | |<^. R2|<^. Size to ensure (in bytes) | |_<^{width:3em}. Exit || |<^. R0|<^. Preserved | |<^. R1|<^. Preserved | |<^. R2|<^. Space reserved (in bytes)| h4. Use The purpose of this call is to set the required minimum size of a file. h4. Notes The size of the file will be at least the size provided in R2 on entry. The size ensured may however be larger than requested, for example to reduce fragmentation. h4. See also * [[OS_Args]]