Ok, la risposta me la do da solo, ma rimane sempre il problema di come cambiare la directory corrente.
COMMODORE 64 BASIC DISK COMMANDS
LOAD "FILENAME",8 / Load a file
LOAD "*", 8 / Load 1st disk file
LOAD "FILENAME",8,1 / Load and run file
SAVE "FILENAME",8 / Save a file
SAVE "@0:"FILENAME",8 / Save and replace
VERIFY "FILENAME",8 / Verify disk file
VERIFY "*",8 / Verify all disk files
LOAD "$",8
LIST / Directory listing
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COMMODORE DOS WEDGE DISK COMMANDS
/"filename" / Load a BASIC program into RAM
%"filename" / Load a machine language program into RAM
↑"filename" / Load a BASIC program into RAM and then
automatically run it
←"filename" / Save a BASIC program to disk
@ / Check disk
@$ / Display the current disk directory without
overwriting the BASIC program in memory
@$:N* / Displays all files having a "N" as the first
letter in their filename
@C:"newfile=oldfile, oldfile2,..oldfile4" / Copy/Concatenate up to four files
@S:"filename" / Delete file
@R:"newname=oldname" / Rename file
@Q / Deactivate the DOS Wedge
SYS 52224 / Reactivate DOS Wedge
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Wildcards: ? Match any character E.G DO? could match DOG or DOC
* Match the rest of the name E.G D* could match DOG or DUG