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LOGIC Apps
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Logic-APPLE_II_APPS.iso
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LOGIC Apple II 5.25" Library - DOS Part 3
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DOS077A.dsk
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GARBAGE.bas
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BASIC Source File
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2012-02-16
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806b
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29 lines
0 GOTO 1000
100 REM READ KEYBOARD
102 X = PEEK( -16384)
104 POKE -16368,0
106 IF X >127 THEN GOSUB 200
109 RETURN
200 REM SPEED
202 IF X = 211 THEN Y = Y *2: REM 'S'PEED
204 IF X = 198 THEN Y = Y/2: REM 'F'AST
206 IF X = 197 THEN END : REM 'E'ND
208 IF Y <1 THEN Y = 1
209 RETURN
500 REM INSTRUCTION WINDOW
502 POKE 34,22: REM SET TOP
504 FLASH : PRINT "F-FASTER:S-SLOWER:E-END": NORMAL
506 POKE 34,0: POKE 35,22: HOME
509 RETURN
1000 REM FILL THE SCREN WITH GARBAGE
1005 GOSUB 500: REM SET WINDOW
1010 FOR I = 1 TO 1000
1020 FOR J = 1 TO 1000
1030 PRINT CHR$( INT( RND(1) *256));
1032 FOR K = 1 TO Y: NEXT K
1035 GOSUB 100: REM READ KEYBOARD
1040 NEXT J: NEXT I
1099 END
2000 REM FROM THE CORE
2001 REM MAR'81 PG 7
2002 REM BY ALEX WHITTAKER