h6. [[CDFSDriver]] h6(. » [[CDFSDriver SWI Calls|SWI Calls]] h6((. » CD_DiscChanged h2. CD_DiscChanged h5. (SWI &41251) |_<^{width:4em}. Entry | | |<^. R7 |<^. Pointer to [[CDFS Control Block]] | |_<^{width:4em}. Exit | | |<^. R0 |<^. Changed flag (0 if unchanged, 1 if changed) | h4. Use The purpose of this call is to check if the CD drive has changed or not since the last call to this SWI. h4. Notes None. h4. See also * [[CDFS Technical Details]]