Internal 9 on 128D

by Phil Anderson

from the Lansing Area Commodore Club Newsletter

    If you are annoyed by your 128D insisting on having it's internal drive as
8, make up a blank disk for the 1571, put a boot sector on it and name the
program to be booted "8-9". Then type in this little program and save it to
the disk as "boot 8-9".

10 close 15:open 15,8,15,"u0>"+chr$(12)
20 close 15:open 15,9,15,"m-w"chr$(119) chr$(0) chr$(2) chr$(40) chr(72)
30 close 15:open 15,12,15,"u0>"+chr$(9)

    Have your external drive, set to device 9, plugged in, turned on and
connected.  Put the disk in the internal drive.  After turning on the
computer, the internal drive will become device 9 and the external will become
drive 8.

   How it works:  The program will be booted when the computer is turned on. 
Line 10 writes to the operating system of the internal drive and tells it it
is device #12.  Then line 20 tells the external drive that it is device #8. 
Line 30 switches the internal drive from device #12 to #9.

    (NOTE:  The reason that lline 20 has a different format is so that a 1541
drive can be switched in.  The 1541 does not recognize the "u0>" command.)

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