mirror of https://github.com/option8/SG32.git
54 lines
2.3 KiB
QBasic
54 lines
2.3 KiB
QBasic
0 GOTO 100: REM ADAPTED FROM https://vintageapple.org/apple_ii/pdf/The_Best_Apple_Public_Domain_Software1985.pdf
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10 C1 = INT (CV / 8): C2 = CV - C1 * 8: P = 1024 + 128 * C2 + 40 * C1 + CH: C = PEEK (P): RETURN
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100 TEXT: HOME: D$ = CHR$(4): PRINT D$"CATALOG": B = PEEK (37) - 2: IF B > 22 THEN B = 22
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110 T = 0: CH = 4: FOR CV = 5 TO 23: GOSUB 10: IF C < > 160 THEN POKE P - 1,219: POKE P,T + 193: POKE P + 1,221: T = T + 1: S = CV
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120 NEXT CV: B$ = "BLOAD": HTAB 1 : VTAB 3 : ? "TYPE A LETTER TO CHOOSE THE FILE TO HASH"
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130 K = PEEK (-16384): IF K < 128 THEN FOR K = 1 TO 75: NEXT K: K = FRE (0): GOTO 130
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140 POKE -16368,0: K = K - 176 : IF K < 17 OR K > T+16 GOTO 130
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150 CH = 1:CV = S - T + K - 16: GOSUB 10
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160 VTAB 24: ? "LOADING: ";
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170 FOR CH = 6 TO 39: GOSUB 10: B$ = B$ + CHR$ (C): ?CHR$ (C) ; : NEXT CH
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180 ?"": HTAB 1: CALL -868: PRINT CHR$(4) "BLOAD SEED,A$B00" : PRINT CHR$(4) B$ ",A$C00"
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190 POKE 251, PEEK(-21919): POKE 250,PEEK(-21920)
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200 HOME: PRINT CHR$(4) "BRUN SG32"
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B = VTAB?
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REM READS LINE FROM TEXT PAGE
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P = MEMORY LOCATION
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C = CHARACTER
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T=LETTER FOR SELECTION
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B$ IS THE COMMAND
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CH HORIZ CHAR
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CV VERT CHAR
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"LEVI"
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0 REM 06/06/83
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100 TEXT : HOME :D$ = CHR$ (4): PRINT D$"CATALOG":B = PEEK (37) - 2: IF B > 22 THEN B = 22
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110 T = 0:CH = 4: FOR CV = 5 TO 23: GOSUB 1000: IF C < > 160 THEN POKE P - 1,219: POKE P,T + 193: POKE P + 1,221:T =T + 1:S = CV
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120 NEXT CV: VTAB 24:A$ = "TYPE LETTER TO RUN, OR LOAD=1 LOCK=2 UNLOCK=3 DELETE=4 EXIT=5...."
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130 B$ = "RUN": HTAB 1: PRINT LEFT$ (A$,39);:A$ = MID$ (A$,2) + LEFT$ (A$,1):K = PEEK ( -16384): IF K < 128 THEN FOR K = 1 TO 75: NEXT K:K = FRE (0): GOTO 130
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140 POKE - 16368,0:K = K - 176: IF K < 1 OR K > 5 THEN 300
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200 HTAB 1: CALL - 868: IF K = 5 THEN END
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210 PRINT "PRESS 'LETTER' YOU WISH TO ";: IF K = 1 THEN B$ ="LOAD"
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220 IF K = 2 THEN B$ = "LOCK"
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230 IF K = 3 THEN B$ = "UNLOCK"
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240 IF K = 4 THEN B$ = "DELETE": FLASH
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250 PRINT B$;: CALL - 198: NORMAL: GET K$:K = ASC (K$) - 48
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300 IF K < 17 OR K > T + 16 THEN 130
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310 CH = 1:CV = S - T + K - 16: GOSUB 1000: IF C = 194 AND (B$ = "RUN" OR B$ = "LOAD") THEN B$ = "B" + B$
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320 FOR CH = 6 TO 39: GOSUB 1000: B$ = B$ + CHR$ (C): NEXT CH: HTAB 1: CALL - 868: PRINT B$: PRINT D$;B$: GOTO 100
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1000 C1 = INT (CV / 8):C2 = CV - C1 * 8:P = 1024 + 128 * C2 + 40 * C1 + CH:C = PEEK (P): RETURN
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