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https://github.com/tjboldt/Apple2-IO-RPi.git
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29 lines
916 B
QBasic
29 lines
916 B
QBasic
10 HOME
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100 PRINT CHR$ (4)"BLOAD AT28C64B,A$2000"
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200 PRINT "Program the firmare in slot #"
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300 INPUT SL
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400 FW = 8192 + 256 * SL: REM Firmware source
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500 PS = 49287 + SL * 16: REM Firmware page selection
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600 EP = 49152 + SL * 256: REM EPROM location
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900 HOME
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1000 FOR PG = 0 TO 3
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1004 PRINT : PRINT
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1005 PRINT "Writing page "PG" to slot "SL
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1006 PRINT "_______________________________________"
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1007 PRINT "_______________________________________";
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1008 HTAB 1
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1010 POKE PS,PG * 16 + 15: REM Set firmware page
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1020 FOR X = 0 TO 255
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1030 A = PEEK (FW + PG * 2048 + X)
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1035 B = PEEK (EP + X): REM Skip if unchanged
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1037 IF (A = B) THEN GOTO 1045
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1040 POKE EP + X,A
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1041 B = PEEK (EP + X)
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1042 IF (B < > A) THEN GOTO 1041: REM Wait for write
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1045 HTAB (X / 256) * 39 + 1
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1046 INVERSE : PRINT " ";: NORMAL
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1050 NEXT X
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1060 NEXT PG
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1900 PRINT
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2000 PRINT "Firmware Update Complete"
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