Commodore 128D - Page 279

n
H
HEADER
H
—Format a diskette
HEADER "diskname" [,l i.d.] [9Ddrive number]
[<ON | ,)Udevice number]
Before a new disk can be used for the first time, it must be formatted
with the HEADER command. The HEADER command can also be
used to erase a previously formatted disk.
When you enter a HEADER command in direct mode, the prompt
ARE YOU SURE? appears. Press the Y key to perform the HEADER
command of any other key to cancel it.
This command divides the disk into sections called blocks. It creates
a table of contents of files, called a directory. The diskname can be
any name up to 16 characters long. The i.d. number is any two alpha
numeric characters. Give each disk a unique i.d. number. Be careful
when using the HEADER command because it erases all previously
stored data.
You can HEADER a diskette quicker if it was already formatted, by
omitting the new disk i.d. number. The old i.d. number is used. The
quick header clears out the directory rather than formatting the disk.
The default device number is 8.
The HEADER command reads the disk command error channel, and
if an error is encountered, the error message "?BAD DISK ERROR"
is displayed.
The HEADER command is analogous to the BASIC 2.0 command:
OPEN 1 A15,"N0:diskname,i.d."
EXAMPLES:
HEADER "MYDISK", I23
HEADER "RECS", I45, D1 ON U9
HEADER "C128 PROGRAMS'9
This HEADERS "MYDISK"
using i.d. 23 on drive 0,
device number 8.
This HEADERS "RECS" using
i.d. 45, on Drive 1, device
number 9
This is a quick header on
drive 0, device number 8,
assuming the disk in the drive
was already formatted. The
old i.d. is used.
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BASIC 7.0 ENCYCLOPEDIA-Basic Commands and Statements