Commodore 128D - Page 248

BACKUP
BANK
EXAMPLES:
AUTO 10 Automatically numbers program lines in increments of 10.
AUTO 50 Automatically numbers lines in increments of 50.
AUTO Turns off automatic line numbering.
NOTE: This command can be used only with a dual-disk drive.
—Copy the entire contents from one disk to another on a dual disk
drive
BACKUP D source drive TO D destination drive number
[<ON|,)Udevice]
This command copies all the files from the source diskette onto the
destination diskette, using a dual disk drive. With the BACKUP com
mand, a new destination diskette can be used without first format
ting it. This is because the BACKUP command copies all the infor
mation on the diskette, including the format, and destroys any
information already on the destination disk. Therefore, when backing
up onto a previously used diskette, make sure it contains no pro
grams you mean to keep. As a precaution the computer asks "ARE
YOU SURE?" before it starts the operation. Press the "Y" key to
perform the BACKUP, or any other key to stop it. You should always
create a backup of all your disks, in case the original diskette is lost
or damaged. Also see the COPY command. The default device num
ber is unit 8.
EXAMPLES:
BACKUP DO TO D1
BACKUP DO TO D1 ON U9
Copies all files from the disk in drive
0 to the disk in drive 1, in dual disk
drive unit 8.
Copies all files from drive 0 to drive
1, in disk drive unit 9.
*—Select one of the 16 BASIC banks (default memory configura
tions), numbered 0-15, to be used during PEEK, POKE, SYS, and
WAIT commands.
BANK bank number
This statement specifies the bank number and corresponding mem
ory configuration for the Commodore 128 memory. The default bank
is 15. Here is a table of available BANK configurations in the Commo
dore 128 memory:
240 BASIC 7.0 ENCYCLOPEDIA—Basic Commands and Statements