Atari XL User Manual

194
The Atari XL Handbook
Closing Files
After use, a file must be closed, with the command
CLOSE IC
where C is the channel number.
The following short program shows the use of
OPEN, PRINT#, INPUT# and
5 DIM A$(40)
10 OPENll, 8, 0, "C:"
20 PRINTll, "THIS IS A TEST FILE"
30 CLOSEll
40 STOP
100 OPENll, 4, 0, "C:"
110 INPUT#l, A$
120 CLOSE#l
130 PRINT A$
Put a blank tape into the tape unit and wind it
forwards past the transparent leader tape. RUN
the program, and the TV speaker will sound twice
as happens when saving programs. Start the tape,
and the file will be created and the data stored.
The program will stop with the message
AT LINE 40".
Rewind the tape and type GOTO 100. The TV
speaker sounds once. When you set the tape going
the data file will be opened and read, and the data
printed on the screen.
This technique may be used to store any amount of
data onto tape.
Commas and semi-colons may be used with
PRINT# as with PRINT. Without punctuation,

Atari XL Specifications

General

Release Year	1983
CPU	MOS Technology 6502C
Graphics	ANTIC, GTIA
Sound	POKEY (4 channels)
Storage	Cassette tape
Ports	Cartridge
Operating System	Atari BASIC
CPU Speed	1.79 MHz
RAM	64 KB