Atari 800 User Manual

Alari BASIC Reference Guide 119
GET (CE.)
The GET function reads 1 byte from a cha nnel that has been
opened for input. GET is us ed with the keyboard, display,
Program R ecorde r, or disk.
CONFIGURATION
GET #a, X
The first
argument of a GET stateme nt indicates the 1/ 0 channel
that will be used. If the first argument is not an int eger, it is
rounded off . The second argu ment names the variable that will
be assigned the va lue read from the channe l. This value will be
an integer between 0 and 25 5.
For
example , if data is being accepted from the Program
R eco rder, the GE T stat ement must be pr eceded by an OPEN
statement. The OPEN statement must inclu de the number of the
I/ O channel, the devi ce name, dnd an input opera ti on co d e.
Numbers that are not int ege rs are rounded off.
EXAMPLE
10 OPEN #3,4,0, "C"
20 FOR J = 1 TO 100
30 GET #3, X
40 PRINT CHR$ (X)
50 NEXT J
60 CLOSE #3
The previous examp le shows the co rr ect format for us ing a GET
statement. Line
10 opens the I/ O chann el a nd specifi es c hann el
#3 for input with the Program Re corder. The channel number
can be any number from 1 through 7, but the c hann el must not
be open for another device . The seco nd arg ument of the OPEN
statement (4) indicates that the device wi ll be used for input.
Line 20 is th e first lin e of a FORI NEXT l oop . The l oop e nd s with
th e NEXT statement at lin e 50. The initi al va lue of the co unt er (J)

Atari 800 Specifications

General

Processor	MOS Technology 6502
Processor Speed	1.79 MHz
ROM	10 KB
Graphics	ANTIC and GTIA chips
Release Year	1979
Display Resolution	up to 320 x 192
Colors	128 colors
Sound	4 channels
Storage	Cartridge, cassette, floppy disk
Ports	Cartridge, serial, monitor
Operating System	Atari OS