Interfacing
Persistant mass storage is handled by the eprom file area. It is interfaced with the :EPR device (OZ 4.7 and newer). This device follows the DOR conventions with the major type DM_Epr ($84). Internal eprom file area is accessed with :EPR.0 device name. :EPR.1, :EPR.2, :EPR.3 refer to eprom file area in slot 1, 2 or 3 if a formatted eprom or flash eprom card is available. Accessing the file requires opening with GN_Opf, followed by i/o operations (OS_Gb, OS_Pb, OS_Frm, OS_Fwm, OS_Mv...) and ended by closure with GN_Cl. All usual read and write operations are performed like standard RAM files thanks to temporary ram files in :RAM.-. This functionality is transparent for end user, temporary files are deleted after closure of the file.
Wildcards
Wildcards have been implemented for eprom filename manipulation. Supported wildcards are '*' and '?'. Thus :EPR.* or :EPR.? browses all available file areas. Filenames are automatically expanded in GN_Opf filename buffer. This feature is useful in Pipedream. After loading a file with wildcards, its filename is expanded without wildcards in <>FC or <>FS filename.