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Atari XL User Manual

Atari XL
262 pages
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Page #195 background image
Player-Missile Graphics
142
REM
LOOP
FOR
EACH
PRIORITY
144
REM
150
FOR
PR=O
TO
3
155
GRAPHICS 5
159
REM
SET PRIORITY
160
POKE
623,
2APR
170
PRINT "PRIORITY
BIT
"i
PRi
"
SET"
183
178
REM
MOVE
PLAYERS
RIGHT
180
FOR
HP=O
TO
3:
POKE
53248+HP,
60+HP*15:
NEXT
HP
200
FOR
HP=O
TO 3
210
FOR
X=60+HP*15
TO
170+HP*10
220
POKE
53248+HP,
X
230
FOR
D=l
TO
10:
NEXT
D
240
NEXT
X
250
NEXT
HP
290
REM
DRAW
RECTANGLES
300
FOR
C=l
TO 3
310
COLOR
C
320
X=(C-l)*20
330
Y=(C-l)*15
340
PLOTX+I0,
Y+I0
350
DRAWTO
X+I0,
Y
360
DRAWTO
X, Y
370
POSITION X,
Y+I0
380
POKE765, C
390
XIO
18,
#6,
0,
0,
"S:"
400
NEXT
C
490
REM
MOVE
PLAYERS
LEFT
500
FOR
HP=O
TO
3
510
FOR
X=170+HP*10
TO
30 STEP
-1
520
POKE
53248+HP,
X
530
FOR
D=l
TO
10:
NEXT
D
540
NEXT
X
550
NEXT
HP

Table of Contents

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Atari XL Specifications

General IconGeneral
Release Year1983
CPUMOS Technology 6502C
GraphicsANTIC, GTIA
SoundPOKEY (4 channels)
StorageCassette tape
PortsCartridge
Operating SystemAtari BASIC
CPU Speed1.79 MHz
RAM64 KB

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