Commodore 1541-II - Copying Programs

COPYING PROGRAMS: BASIC 2
The Copy command allows you to make a spare copy of any program or file on a
diskette. However, on a single drive like the 1541, the copy must be on the same diskette,
which means it must be given a different name from the file copied. It's also used to
concatenate up to four sequential data files (combining them by linking one to another,
end to end in a chain). Files are linked in the order in which they appear in the command.
The source files and other files on the diskette are not changed. Files must be closed
before they are copied or concatenated*.
FORMAT FOR THE COPY COMMAND
PRINT#15,44COPYdrive #:new file = drive #:old file"
EXAMPLES:
PRINT# 15,4 4COPY0:B ACKUP = ORIGINAL''
or abbreviated as
PRINT#15,44Cdrive #:new file = drive #:old file"
PRINT# 15/ 4C0:B ACKUP = ORIGINAL''
where 4<drive #" is the drive number (0 on the 1541,) t4new file" is the copy, and 4<old
file" is the original.
FORMAT FOR THE CONCATENATE OPTION
PRINT#15,44Cdrive #:new file = drive #:file l,drive#:file 2,drive #:file 3,drive
#:file4"
where 44drive #" is the drive number for each file. Since it is always 0 on the 1541, the
drive number is often omitted.
EXAMPLES:
After renaming a file named 4<BOOT" to 44TEMP" in the last section's example, we
can use the Copy command to make a spare copy of the program elsewhere on the
diskette, under the original name:
PRINT# 15,4 4C0:BOOT = TEMP''
After creating several small sequential files that each fit easily in memory along with
a program we are using, we can use the concatenate option to combine them in a master
file, even if the result is too big to fit in memory. (Do be sure it will fit in remaining space
on the diskette—it will be as big as the sum of the sizes of the files in it.)
PRINT#15,44C0:A-Z = A-G,H-M,N-Z"
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