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- 10 POKE 768,1: POKE 769,0: POKE 770,4
- 20 POKE 771,0: POKE 772,4: POKE 773,0
- 30 POKE 232,0: POKE 233,3: REM $E8,E9=$300
- 40 HGR : HCOLOR= 3
- 50 HOME
- 60 GOSUB 190
- 70 REM 'DRAW' SCANNER
- 80 SCALE= 80
- 90 FOR R = 0 TO 63
- 100 ROT= R
- 110 HCOLOR= 3: DRAW 1 AT 140,80: REM DRAW LINE
- 120 VTAB 22: PRINT PEEK(234);" "
- 130 IF PEEK(234) >0 THEN GET A$: IF A$ = "X" THEN
- 140 FOR I = 1 TO 25: NEXT I: REM DELAY LOOP
- 150 HCOLOR= 0: DRAW 1 AT 140,80: REM ERASE LINE
- 160 NEXT R
- 170 HCOLOR= 3: GOSUB 190: REM RE-CREATE FIELD
- 180 GOTO 90
- 190 REM CREATE FIELD
- 200 HPLOT 140,100: HPLOT 140,101
- 210 RETURN