Atari 800 Basic Reference Manual

Now enter the hexadecimal codes as shown column by column.
68
2
A2
E8
0
EO
AC
3
C4
90
2
F5
BD
8C
cs
C7
2
2
9D
60
C4
BYTES= 21
When completed, type DONE and press &mJ. Now place the cursor after the
last entry (999) on the DATA line and pressiDmJ.
Now run the program by typing GOTO 1000 and pressing l;liilll;!ll, or if line 5
has been added, type RUN lilll!lmJ. Press illil1tito stop program and delete line
5.
The second program, which follows, should be entered in place of the
NOTHING IS MOVING program . Be sure to check the BYTES = __ count in
line 1000. Follow steps 2 through 6.
1080 GRAPHICS 7+16
1090 SET COLO~~ €L 91 4
110(1 SETCOLOF.: L 9 .. E:
1110 SETCOLOR 2~9~4
1120 CR=1
1130 FOR ::-::=0 TO 159
1140 COLOR INT< CR)
115(1 PLOT 801 0
1160 ~AL·JTO :; :: .. 95
117(1 CR=CR+0 . 125
1180 IF CR=4 THEN CR=1
1190 NE:x:T :<
1200 :~=US~'( ADR( E$ )+ 1 )
121(1 FOR 1=1 TO 15=N£:;::T I
1220 GOTO 1200
Type RUN lim!liJ3
Enter the hexadecimal codes for this program column by column.
66 Advanced Programming Techniques
68
A2
0
AC
C4
2
BD
C5
2
9D
- CA
2
E8
EO
2
90
F5
8C
C6
2
60
BYTES= 21

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