; C02 filesys.h02 assembly language subroutines
; Requires external functions ...
; external zero page locations ...
; and external locations ...

;remove(drv, &filnam) - Remove File filnam
;Args: A = Drive Identifier
;      Y,X = Address of Directory Name String
;Returns: A = Error Code (0 = None)
REMOVE: ;Return Error - Not Implemented (Fall Through)
        
;rename(drv, &filnam) - Rename File to filnam
;Setup: Call FSNAME with Address of Old Name
;Args: A = Drive Identifier
;      Y,X = Address of Directory Name String
;Returns: A = Error Code (0 = None)
RENAME: ;Return Error - Not Implemented (Fall Through)

;inidrv(drv) - Initialize Disk Drive
;Args: A = Drive Identifier
;Returns: A = Error Code (0 = None)
INIDRV: ;Return Error - Not Implemented (Fall Through)

;chdrv() - Set Current Drive/Disk
;Args: A = Drive# | Disk#
;Returns: A = Result (0 - Success)
;         Y = Error Code (0 = None)
CHDRV:  LDA #$FF          ;Return Result - Failure
        TAY               ;and Error - Not Implemented
        RTS

;getdrv() - Get Current Drive/Disk
;Returns: A = Drive# | Disk# (0=Failure)
;         Y = Error Code (0 = None)
GETDRV: ;Return Error - Not Implemented (Fall Through)