17 lines
333 B
QBasic
17 lines
333 B
QBasic
1 GOTO 10
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5 SPEED=$)%DEL$LRUSR
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10 HGR
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20 FOR X=0 TO 256:FOR Y=0 TO 191
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40 C1=(Y-(X*T/256))
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45 IF C1<0 THEN C1=C1+256
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50 C2=(Y*T/256+X)
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55 IF C2<0 THEN C2=C2+256
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60 POKE 2062,C1
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70 POKE 2064,C2:CALL 2061
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75 POKE 2062,PEEK(36):POKE 2064,252:CALL 2061
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80 HCOLOR=0
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85 IF PEEK(36) THEN HCOLOR=1
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87 HPLOT X,Y
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90 NEXT Y,X
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95 T=T+10:GOTO 20
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