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Atari 8-bit Source code

Entry name:
 Scroll Gr.2 
Publisher/Developer:

BELLCOM - Public Domain Library
(Software library)
  • Category:

    Graphics
  • Programming language:

    Atari BASIC
Scroll Gr.2 Scroll Gr.2 Scroll Gr.2 Scroll Gr.2 Scroll Gr.2 Scroll Gr.2 Scroll Gr.2
Listing 1 
10REM*SCROLL.GR2
20VSCROL=54277
22GRAPHICS18
25DL=PEEK(560)+256*PEEK(561)
35POSITION3,2:?#6;"TLe"
40FORY=DL+7TODL+10
45POKEY,39
50NEXTY
60FORQ=0TO16
65POKEVSCROL,Q
70FORW=1TO120:NEXTW
75NEXTQ
80FORW=DLTODL+40
84GOTO90
85LPRINT"",W,PEEK(W)
90NEXTW
95POKE755,6
96C=C+1
97IFC=1THENGOTO35
98C=0:POKE755,2
100GOTO35
References
https://ftp.pigwa.net/stuff/collections/holmes%20cd/Holmes%203/BELLCOM/index.html
https://forums.atariage.com/topic/125131-bellcom-pd-catalog-disk/
https://archive.org/details/BELLCOMPublicDomainSoftwareAtari8Bit
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