h6. [[CDFSDriver]] h6(. » [[CDFSDriver SWI Calls|SWI Calls]] h6((. » CD_CheckDrive h2. CD_CheckDrive h5. (SWI &41250) |_<^{width:4em}. Entry | | |<^. R7 |<^. Pointer to [[CDFS Control Block]] | |_<^{width:4em}. Exit | | |<^. R0 |<^. 0 if CD in drive, error otherwise | h4. Use The purpose of this call is to check if a disc is present in the drive. h4. Notes None. h4. See also * [[CDFS Technical Details]]