52 lines
1.3 KiB
QBasic
52 lines
1.3 KiB
QBasic
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10 REM DOS smoke test for gwbasic16.exe -- exercises arithmetic, strings,
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20 REM control flow, GOSUB, FOR/NEXT, DATA/READ, file I/O, MID$ assignment.
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30 REM Output is captured via OPEN/PRINT# so the host can compare against
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40 REM tests/expected/dos_smoke.expected.
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50 OPEN "O",#1,"OUT.TXT"
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60 REM --- 1. Arithmetic
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70 PRINT #1, "ARITH"
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80 PRINT #1, 2+2*3
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90 PRINT #1, (2+2)*3
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100 PRINT #1, 100\3, 100 MOD 3
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110 PRINT #1, 2^10
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120 REM --- 2. Strings
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130 PRINT #1, "STRINGS"
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140 A$ = "HELLO" + " " + "WORLD"
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150 PRINT #1, A$
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160 PRINT #1, LEN(A$); LEFT$(A$,5); RIGHT$(A$,5); MID$(A$,7,5)
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170 MID$(A$,7,5) = "BASIC"
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180 PRINT #1, A$
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190 REM --- 3. Control flow
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200 PRINT #1, "CONTROL"
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210 FOR I = 1 TO 5
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220 PRINT #1, "FOR"; I
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230 NEXT I
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240 J = 0
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250 WHILE J < 3
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260 J = J + 1
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270 PRINT #1, "WHILE"; J
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280 WEND
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290 GOSUB 1000
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300 REM --- 4. DATA/READ
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310 PRINT #1, "DATA"
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320 RESTORE 900
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330 FOR K = 1 TO 4
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340 READ X
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350 PRINT #1, "X="; X
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360 NEXT K
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370 REM --- 5. DEF FN
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380 PRINT #1, "DEFFN"
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390 DEF FN SQUARE(N) = N*N
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400 PRINT #1, FN SQUARE(7)
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410 PRINT #1, FN SQUARE(13)
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420 REM --- 6. Conditionals
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430 PRINT #1, "IF"
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440 IF 5 > 3 THEN PRINT #1, "T1"
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450 IF 5 < 3 THEN PRINT #1, "F1" ELSE PRINT #1, "T2"
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460 PRINT #1, "DONE"
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470 CLOSE #1
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480 END
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900 DATA 10, 20, 30, 40
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1000 PRINT #1, "GOSUB OK"
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1010 RETURN
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