EP_Fetch ($09) - Copy saved/deleted file from File Area to RAM

Register parameters

IN:
     A = EP_FETCH
    IX = handle of file stream (opened previously with GN_Opf, A=OP_OUT)
   BHL = pointer to Eprom File Entry (bits 7,6 of B is the slot mask)

OUT:
   Fc = 0,
        File Image transferred successfully to RAM file.

   Fc = 1,
        A = RC_ONF, File Eprom or File Entry was not found in slot
        A = RC_xxx, I/O error during saving process.

Registers changed after return:
   ..BCDEHL/IXIY same
   AF....../.... different

Notes

Fetch file (image) from File Eprom Card, identified by File Entry at BHL (B=00h-FFh embedded slot mask, HL=0000h-3FFFh bank offset) and store it into an open file (enabled for writing) in the RAM file system (using the IX handle).

The application is responsible for opening/creating a RAM file, then using this library routine to transfer the contents from the File Eprom to the RAM file system, and then finally close the new RAM file.