format  Sint32 CDC_ReadFile (Sint32 filtno, Sint32 fid, Sint32 offset)
 Input  filtno: Aperture number
:  fid: File identifier
:  offset: Logical offset from the beginning of the file (in sectors)
 Output  None
 Function value  Returns an error code.
 End flag  EFLS flag
 Function  Loads the specified file into the CD buffer. The selector to read in depends on the aperture number.
Specify  . 

 format  Sint32 CDC_AbortFile (void)
 Input  None
 Output  None
 Function value  Returns an error code.
 End flag  EFLS flag (only 0 cleared) …… Can be executed regardless of the EFLS value
 Function  File access via the CD block file system (the following function) will be canceled.
 -Move directory (CDC_ChgDir)
 -File information retention (CDC_ReadDir)
 Read -Read file (CDC_ReadFile)
  When file access is stopped, the CD drive pauses and the interrupt factor register
  The EFLS flag is 1.
  If the file is not being accessed, only the EFLS flag is set to 1.
 Remarks  Even if file access is stopped, the buffer section is not cleared and the selector is not initialized.
:  When the execution of the CDC_ChgDir and CDC_ReadDir functions is stopped, all the stored file information is cleared.
 will be .
File access will also be canceled if the  tray  tray opens.