Software Method - Commodore 1541 User Manual

9. CHANGING THE DISK DRIVE DEVICE NUMBER
SOFTWARE METHOD
The device number is selected by the drive by looking at a hardware jumper on the
board and writing the number based on thai jumper in a section of its RAM. Once
operation is underway, it is easy to write over the previous device number with a new
one.
FORMAT FOR CHANGING DEVICE NUMBER:
PRINTflfileS, "M-W:" CHRS(119) CHRS(O) CHRS(2) CHR$(address + 32)
CHR$(address + 64)
EXAMPLE OF CHANGING DEVICE NUMBER (FROM 8 TO 9):
10 OPEN 15, 8, 15
20 PRINTS 15, "M-W" CHR${i!9) CHR$(0) CHRS(2) CHRS(9 + 32>
CHRS(9 + 64)
If you have more than one drive, it's sensible to change [headdress through hard
ware (see below). If you must, the procedure is easy. Just plug in the drives one at a
time, and change their number to the desired new values. That way you won't have any
conflicts.
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