PCjs Machines

DONKEY.BAS from PC DOS 1.00 (1981)

The above simulation is configured for a clock speed of 4.77Mhz, with 64Kb of RAM and a CGA display, using the original IBM PC Model 5150 ROM BIOS and CGA font ROM. This configuration includes a predefined state, with PC DOS 1.0 already booted and DONKEY.BAS ready to run.

This particular machine has been configured to automatically save all your changes (subject to the limits of your browser’s local storage), so you can close the browser in the middle of a game of DONKEY, and the next time you load this page, your progress (and the donkey) should be perfectly restored.

Browse all the BASIC Programs included with PC DOS 1.00.

DONKEY.BAS

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940 REM The IBM Personal Computer Donkey
950 REM Version 1.00 (C)Copyright IBM Corp 1981
960 REM Licensed Material - Program Property of IBM
975 DEF SEG: POKE 106,0
980 SAMPLES$="NO"
990 GOTO 1010
1000 SAMPLES$="YES"
1010 KEY OFF:SCREEN 0,1:COLOR 15,0,0:WIDTH 40:CLS:LOCATE 5,19:PRINT "IBM"
1020 LOCATE 7,12,0:PRINT "Personal Computer"
1030 COLOR 10,0:LOCATE 10,9,0:PRINT CHR$(213)+STRING$(21,205)+CHR$(184)
1040 LOCATE 11,9,0:PRINT CHR$(179)+"       DONKEY        "+CHR$(179)
1050 LOCATE 12,9,0:PRINT CHR$(179)+STRING$(21,32)+CHR$(179)
1060 LOCATE 13,9,0:PRINT CHR$(179)+"    Version 1.00     "+CHR$(179)
1070 LOCATE 14,9,0:PRINT CHR$(212)+STRING$(21,205)+CHR$(190)
1080 COLOR 15,0:LOCATE 17,7,0:PRINT "(C) Copyright IBM Corp 1981"
1090 COLOR 14,0:LOCATE 23,7,0:PRINT "Press space bar to continue"
1100 IF INKEY$<>"" THEN GOTO 1100
1110 CMD$ = INKEY$
1120 IF CMD$ = "" THEN GOTO 1110
1130 IF CMD$ = CHR$(27) THEN GOTO 1298
1140 IF CMD$ = " " THEN GOTO 1160
1150 GOTO 1110
1160 DEF SEG=0
1170 IF (PEEK(&H410) AND &H30)<>&H30 THEN DEF SEG:GOTO 1291
1180 WIDTH 80:CLS:LOCATE 3,1
1190 PRINT "HOLD IT!"
1200 PRINT "YOU'RE NOT USING THE COLOR/GRAPHICS MONITOR ADAPTER!"
1210 PRINT "THIS PROGRAM USES GRAPHICS AND REQUIRES THAT ADAPTER."
1220 PRINT "PRESS THE SPACE BAR TO CONTINUE."
1230 DEF SEG
1240 IF INKEY$<>"" THEN GOTO 1240
1250 CMD$ = INKEY$
1260 IF CMD$ = "" THEN GOTO 1250
1270 IF CMD$ = CHR$(27) THEN GOTO 1298
1280 IF CMD$ = " " THEN GOTO 1298
1290 GOTO 1250
1291 KEY OFF
1292 ON ERROR GOTO 1295
1293 PLAY "p16"
1294 GOTO 1300
1295 COLOR 31,0,0
1296 PRINT "THIS PROGRAM REQUIRES ADVANCED BASIC -- USE COMMAND 'BASICA'":COLOR 15,0,0:FOR I=1 TO 9000:NEXT: RESUME 1298
1298 ON ERROR GOTO 0
1299 SCREEN 0,1:IF SAMPLES$="YES" THEN CHAIN"samples",1000 ELSE COLOR 7,0,0:CLS:END
1300 REM
1410 COLOR 0
1420 DEFINT A-Y
1440 SCREEN 1,0:COLOR 8,1
1450 DIM Q%(500)
1460 DIM D1%(150),D2%(150),C1%(200),C2%(200)
1470 DIM DNK%(300)
1480 GOSUB 1940
1490 GOSUB 1780
1500 CLS
1510 DIM B%(300)
1520 FOR I=2 TO 300:B%(I)=-16384+192:NEXT
1530 B%(0)=2:B%(1)=193
1540 REM
1550 CX=110:CLS
1590 LINE (0,0)-(305,199),,B
1600 LINE (6,6)-(97,195),1,BF
1610 LINE (183,6)-(305,195),1,BF
1620 LOCATE 3,5:PRINT "Donkey"
1630 LOCATE 3,29:PRINT "Driver"
1631 LOCATE 19,25:PRINT"Press Space  ";
1632 LOCATE 20,25:PRINT"Bar to switch";
1633 LOCATE 21,25:PRINT"lanes        ";
1635 LOCATE 23,25:PRINT"Press ESC    ";
1636 LOCATE 24,25:PRINT"to exit      ";
1640 FOR Y=4 TO 199 STEP 20:LINE(140,Y)-(140,Y+10):NEXT
1650 CY=105:CX=105
1660 LINE (100,0)-(100,199):LINE(180,0)-(180,199)
1670 LOCATE 5,6:PRINT SD:LOCATE 5,31:PRINT SM
1680 CY=CY-4:IF CY<60 THEN 2230
1690 PUT (CX,CY),CAR%,PRESET
1700 DX=105+42*INT(RND*2)
1710 FOR Y=(RND*-4)*8 TO 124 STEP 6
1720 SOUND 20000,1
1730 A$=INKEY$:IF A$=CHR$(27) THEN 1298 ELSE POKE 106,0:IF LEN(A$)>0 THEN LINE (CX,CY)-(CX+28,CY+44),0,BF:CX=252-CX:PUT (CX,CY),CAR%,PRESET:SOUND 200,1
1740 IF Y=>3 THEN PUT (DX,Y),DNK%,PSET
1750 IF CX=DX AND Y+25>=CY THEN 2060
1760 IF Y AND 3 THEN PUT (140,6),B%
1770 NEXT:LINE (DX,124)-(DX+32,149),0,BF:GOTO 1670
1780 CLS
1790 DRAW "S8C3"
1800 DRAW"BM12,1r3m+1,3d2R1ND2u1r2d4l2u1l1"
1810 DRAW"d7R1nd2u2r3d6l3u2l1d3m-1,1l3"
1820 DRAW"m-1,-1u3l1d2l3u6r3d2nd2r1u7l1d1l2"
1830 DRAW"u4r2d1nd2R1U2"
1840 DRAW"M+1,-3"
1850 DRAW"BD10D2R3U2M-1,-1L1M-1,1"
1860 DRAW"BD3D1R1U1L1BR2R1D1L1U1
1870 DRAW"BD2BL2D1R1U1L1BR2R1D1L1U1
1880 DRAW"BD2BL2D1R1U1L1BR2R1D1L1U1
1890 LINE(0,0)-(40,60),,B
1900 PAINT (1,1)
1910 DIM CAR%(900)
1920 GET(1,1)-(29,45),CAR%
1930 RETURN
1940 CLS
1950 DRAW"S08"
1960 DRAW "BM14,18"
1970 DRAW"M+2,-4R8M+1,-1U1M+1,+1M+2,-1
1980 DRAW"M-1,1M+1,3M-1,1M-1,-2M-1,2"
1990 DRAW"D3L1U3M-1,1D2L1U2L3D2L1U2M-1,-1"
2000 DRAW"D3L1U5M-2,3U1"
2010 PAINT (21,14),3
2020 PRESET (37,10):PRESET (40,10)
2030 PRESET (37,11):PRESET (40,11)
2040 GET (13,0)-(45,25),DNK%
2050 RETURN
2060 SD=SD+1:LOCATE 14,6:PRINT "BOOM!"
2070 GET (DX,Y)-(DX+16,Y+25),D1%
2080 D1X=DX:D1Y=Y:D2X=DX+17
2090 GET (DX+17,Y)-(DX+31,Y+25),D2%
2100 GET (CX,CY)-(CX+14,CY+44),C1%
2110 GET (CX+15,CY)-(CX+28,CY+44),C2%
2120 C1X=CX:C1Y=CY:C2X=CX+15
2130 FOR P=6 TO 0 STEP -1:Z=1/(2^P):Z1=1-Z
2140 PUT (C1X,C1Y),C1%:PUT(C2X,C1Y),C2%
2150 PUT (D1X,D1Y),D1%:PUT(D2X,D1Y),D2%
2160 C1X=CX*Z1:D1Y=Y*Z1:C2X=C2X+(291-C2X)*Z
2170 D1X=DX*Z1:C1Y=C1Y+(155-C1Y)*Z:D2X=D2X+(294-D2X)*Z
2180 PUT (C1X,C1Y),C1%:PUT(C2X,C1Y),C2%
2190 PUT (D1X,D1Y),D1%:PUT(D2X,D1Y),D2%
2200 SOUND 37+RND*200,4:NEXT
2210 FOR Y=1 TO 2000:NEXT
2220 CLS:GOTO 1540
2230 SM=SM+1:LOCATE 7,25:PRINT "Donkey loses!"
2240 FOR Y=1 TO 1000:NEXT
2250 CLS:GOTO 1540

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