dos33fsprogs/basic/appleiibot/fakes.bas

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10 GR:COLOR=9
20 FOR X=0 TO 39
30 POKE 2138,X
40 FOR Y=0 TO X
50 POKE 2140,Y:CALL 2137
60 PLOT X,PEEK(36)
70 NEXT Y,X
100 SPEED=$)%DEL$LRUSR