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SHIFTING & REVERSING 2.bas
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BASIC Source File
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2023-02-26
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518b
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12 lines
5 REM REQUIRES BLOCK ROUTINES $911A AND TRUCK+1 #144
10 HGR : CALL 37799: POKE 251,144
20 POKE 252,130: POKE 253,144: POKE 254,6: POKE 255,0: CALL 37679
50 FOR X = 0 TO 33
60 FOR Y = 1 TO 7: CALL 37390: NEXT : REM SHIFT THROUGH 1 BYTE
70 CALL 37296: REM INCREMENT HR/HL
80 NEXT : CALL 37281: CALL 37606: REM REVERSE SHAPE
100 FOR X = 0 TO 33
110 FOR Y = 1 TO 7: CALL 37301: NEXT : REM SHIFT THROUGH 1 BYTE/LEFT
120 CALL 37281: REM DECREMENT HR/HL
130 NEXT : CALL 37606: REM REVERSE SHAPE
140 GOTO 50