CMD_OPEN_INPUT              EQU    "I"
CMD_OPEN_OUTPUT             EQU    "O"
CMD_OPEN_EXTEND             EQU    "E"
CMD_OPEN_I_O                EQU    "B"
CMD_OPEN_CLOSE              EQU    "C"
CMD_OPEN_EXIST              EQU    "X"
CMD_OPEN_SCRATCH            EQU    "!"

CMD_ACCESS_START            EQU    "S"
CMD_ACCESS_READ             EQU    "R"
CMD_ACCESS_READNEXT         EQU    "N"
CMD_ACCESS_WRITE            EQU    "W"
CMD_ACCESS_WRITENEXT        EQU    "U"
CMD_ACCESS_DELETE           EQU    "D"
CMD_ACCESS_GET              EQU    "G"
CMD_ACCESS_PUT              EQU    "P"

;----------------
; M e s s a g e s
;----------------
STATUS_OK                   EQU    000
STATUS_FILE_NOT_FOUND       EQU    001
STATUS_FILE_OPEN_ERROR      EQU    002
STATUS_FILE_CLOSE_ERROR     EQU    003
STATUS_FILE_SCRATCH_ERROR   EQU    004
STATUS_FILE_READ_ERROR      EQU    005
STATUS_FILE_AT_END_ERROR    EQU    006
STATUS_FILE_WRITE_ERROR     EQU    007
STATUS_FILE_REWRITE_ERROR   EQU    008
STATUS_FILE_START_ERROR     EQU    009
STATUS_FILE_DELETE_ERROR    EQU    010
STATUS_DISK_FULL_ERROR      EQU    011