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Atari 130XE User Manual

Atari 130XE
142 pages
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PLAYERS AND MISSILES
This program uses a technique cal l
ed
Player Miss
il
e Graphics to
create a pink monster that mov
es
across your screen
in
front of a blue
vertical
bar. If you want to make the monster scoot behind the b
lu
e
bar, simply change line 150 to
1.58
POKE
623
..
4.
1.8
POKE
764
..
255:
POKE
588
..
1.
28
GRAPHICS
3+1.6
38
FOR
X=1.6
TO
24:
FOR
V=8
TO
23:
COLOR
3:
PLOT
X
..
V:
NEXT
V:
NEXT
X
48MEMTOP=PEEK(741.)+256*PEEK(742)-1.
59
PMBASE=INT(
(MEMTOP-1.824)
/1.824)
*1.824
68
ADJTOP=PMBASE+384
78
POKE
742
..
INT
(ADJTOP/256):
POKE
741.
..
ADJTOP-256*PEEK
(742)
88
POKE
5427'J
..
PMBASE/256
'J8
POKE
53277
..
2
1.88
POKE
55'J
..
34+8
1.1.8
P8=PMBASE
+
51.2
1.28
FOR
A=P8
TO
P9+1.28:
POKE
A
..
8:
NEXT
A
1.39
FOR
A=P8+68
TO
P8+67:
READ
B:
POKE
A
..
B:
NEXT
A
1.48
POKE
53256
..
3
1.59
POKE
623
..
1.
1.69
POKE
784
..
1.88
1.78
POKE
53248
..
PEEK(28)
:GOTO
1.78
1.88
DATA
69
,
,1.26
..
1.2'J
..
1.53
..
255
..
36
..
66
..
1.2'J
TOPSY·TURVY
When you run Topsy-Turvy, your screen will be fil l
ed
with strange
writing.
To
straighten it out, simply
press
~
.
To mess things up
again, press
1 Select
I.
1.9
POKE
764
..
255:
POKE
S88
..
1.
29
GRAPHICS
1.8:
POKE
71.2
..
1.28:
POKE
755,,5
38
POSITION
5
..
3:
PRINT
Sl6,:
"WELCOME
TO"
48
POSITION
2,,5:
PRINT
Sl6;
"THE
TOPSV-TURVV":
POSITION
6
..
7:
PRINT
Sl6;
"WORLD
OF
" :
POSITION
6
..
'J
59
PRINT
Sl6;
"COMPUTERS"
68
IF
PEEK(5327'J)=5
THEN
POKE
755
..
5:
POKE
71.2
..
1.28
78
IF
PEEK
(5327'J)
=6
THEN
POKE
755
..
1.
:
POKE
71.2
..
'J'J
88
GOTO
68
81

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Atari 130XE Specifications

General IconGeneral
TypeHome computer
Release year1985
CPUMOS Technology 6502C
CPU Speed1.79 MHz
RAM128 KB
ROM24 KB
GraphicsANTIC and GTIA chips
ManufacturerAtari
Display resolution320x192
SoundPOKEY chip, 4 channels
StorageExternal floppy disk drive, cassette tape
Ports2 joystick ports
Operating SystemAtari BASIC

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