487 lines
9.9 KiB
QBasic
487 lines
9.9 KiB
QBasic
NEW
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REM APPLE BEFUNGE EDITOR V1.1
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REM ----- ------- ------ ----
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REM BEFUNGE-93-ESQUE INTERPRETER
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REM WRITTEN IN APPLESOFT BASIC!
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REM V1.0 JUN 2000 CHRIS PRESSEY
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REM V1.1 FEB 2012 CHRIS PRESSEY
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REM THIS WORK IS HEREBY ENTERED INTO
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REM THE PUBLIC DOMAIN
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REM THIS LISTING IS INTENDED TO BE
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REM PASTED INTO YOUR EMULATOR. SO,
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REM TO SAVE SPACE AND TIME, THESE
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REM 'REM'S EXIST ONLY IN THIS FILE,
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REM AND ARE NOT SAVED IN PROGRAM
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REM IT IS RECOMMENDED TO RUN YOUR
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REM EMULATOR AT FULL SPEED, OR THE
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REM INTERPRETER WILL BE SOMEWHAT,
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REM SHALL WE SAY, POKEY
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100 GOSUB 8000: GOTO 720
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REM RUN-PROGRAM LOOP
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200 VTAB Y%+1:HTAB X%+1
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220 IR%=PG%(X%,Y%)
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225 IF QM%=1 THEN GOSUB 910:GOTO 240
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230 IF IM%=0 OR IR%=59 THEN GOSUB 400
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235 IF RM%=0 THEN 720
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240 GOSUB 250: GOTO 200
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REM ADVANCE IP
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250 X%=X%+DX%:Y%=Y%+DY%
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260 IF X%>39 THEN X%=X%-40
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265 IF X%<0 THEN X%=X%+40
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270 IF Y%>23 THEN Y%=Y%-24
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275 IF Y%<0 THEN Y%=Y%+24
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280 RETURN
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REM DISPLAY PAGE
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300 J%=0
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320 VTAB J%+1: HTAB 1
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330 I%=0
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340 IF I%=39 AND J%=23 GOTO 360
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350 PRINT CHR$(PG%(I%,J%));
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360 I%=I%+1:IF I%<40 THEN GOTO 340
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370 J%=J%+1:IF J%<24 THEN GOTO 320
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390 RETURN
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REM EXECUTE IR%
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400 IF IR%<33 THEN RETURN
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412 IF IR%=86 THEN GOTO 3410:REM V
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413 IF IR%=73 THEN GOTO 3010:REM I
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414 IF IR%=71 THEN GOTO 3610:REM G
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415 IF IR%=80 THEN GOTO 3710:REM P
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416 IF IR%>=65 AND IR%<=70 THEN GOTO 2260
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418 IF IR%>=92 THEN ON IR%-91 GOTO 3610,3110,3210,3310
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420 IF IR%>=58 THEN ON IR%-57 GOTO 2310,2410,2510,2610,2710,2810,2910
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430 IF IR%>=48 AND IR%<=57 THEN GOTO 2210
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440 IF IR%>41 THEN ON IR%-41 GOTO 1610,1710,1810,1910,2010,2110
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450 ON IR%-32 GOTO 1010,1110,1210,1310,1410,1510,3510
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460 RETURN
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REM PUSH D% ONTO STACK
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500 ST%(SP%)=D%:SP%=SP%+1:RETURN
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REM POP D% FROM STACK
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600 IF SP%=0 THEN GOTO 650
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620 SP%=SP%-1:D%=ST%(SP%)
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630 RETURN
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650 D%=0
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690 RETURN
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REM EDIT-PROGRAM LOOP
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720 VTAB Y%+1:HTAB X%+1
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722 IR%=PG%(X%,Y%)
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730 GET A$:A%=ASC(A$)
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733 IF A%=23 THEN GOSUB 6210:GOTO 720
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734 IF A%=15 THEN GOSUB 6010:GOTO 720
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735 IF A%=1 THEN GOSUB 8010:GOTO 720
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736 IF A%=14 THEN GOSUB 7140:GOSUB 300:GOTO 720
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737 IF A%=5 THEN GOSUB 7010:GOTO 720
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738 IF A%=12 THEN DX%=1:DY%=0:X%=0:Y%=0:GOTO 720
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740 IF A%=7 THEN RM%=1:GOTO 200
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741 IF A%=9 THEN GOSUB 810
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REM BACKTICK BECOMES APOSTROPHE
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REM TILDE BECOMES EQUALS SIGN
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REM VERTICAL BAR BECOMES LETTER I
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742 IF A%=96 THEN A%=39
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744 IF A%=126 THEN A%=61
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746 IF A%=124 THEN A%=73
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750 IF A%=20 THEN GOSUB 7110:GOTO 720
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752 IF A%=18 THEN GOSUB 300:GOTO 720
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760 IF A%=11 THEN DX%= 0:DY%=-1:GOSUB 250
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765 IF A%=8 THEN DX%=-1:DY%= 0:GOSUB 250
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770 IF A%=21 THEN DX%= 1:DY%= 0:GOSUB 250
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775 IF A%=10 THEN DX%= 0:DY%= 1:GOSUB 250
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777 IF A%=13 THEN DX%= 0:DY%= 1:X%=0:GOSUB 250:DX%=1:DY%=0:GOTO 720
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REM SHELL TO BASIC
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785 IF A%=27 THEN HOME:END:GOSUB 300:GOTO 720
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786 IF X%=39 AND Y%=23 THEN GOSUB 250:GOTO 720
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787 IF A%>127 THEN A%=A%-128:GOTO 787
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788 IF A%>95 THEN A%=A%-32:GOTO 788
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790 IF A%>31 THEN PG%(X%,Y%)=A%:PRINT CHR$(A%);:GOSUB 250
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795 GOTO 720
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REM HELP
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810 VTAB 5:INVERSE
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812 HTAB 5:PRINT " CTRL+I - SHOW THIS HELP "
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814 HTAB 5:PRINT "------------------------------"
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816 HTAB 5:PRINT " ARROW KEYS - MOVE CURSOR/IP "
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818 HTAB 5:PRINT " (CTRL+J = DOWN, CTRL+K = UP) "
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820 HTAB 5:PRINT " CTRL+L - HOME CURSOR "
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822 HTAB 5:PRINT " CTRL+N - NEW:CLEAR PROG "
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824 HTAB 5:PRINT " CTRL+O - OPEN:LOAD PROG "
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826 HTAB 5:PRINT " CTRL+W - WRITE:SAVE PRG "
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828 HTAB 5:PRINT " CTRL+G - GO:RUN PROGRAM "
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830 HTAB 5:PRINT " CTRL+T - SINGLE STEP IP "
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832 HTAB 5:PRINT " CTRL+E - EXAMINE STACK "
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834 HTAB 5:PRINT " CTRL+R - REDRAW SCREEN "
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836 HTAB 5:PRINT " CTRL+A - SHOW ABOUT BOX "
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838 HTAB 5:PRINT " CTRL+C - STOP PROG RUN "
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840 HTAB 5:PRINT " ESC (,CONT) - SHELL TO BASIC "
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842 HTAB 5:PRINT "------------------------------"
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844 HTAB 5:PRINT " PRESS ANY KEY TO RESUME EDIT "
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880 NORMAL
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890 GET WT$:GOSUB 300
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895 RETURN
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REM QUOTEMODE
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910 IF IR%=34 THEN QM%=0:GOTO 990
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920 D%=IR%
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930 GOSUB 500
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990 RETURN
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REM ! BOOLEAN NOT
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1010 GOSUB 600
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1020 IF D%=0 THEN D%=1:GOTO 1040
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1030 D%=0
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1040 GOSUB 500
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1090 RETURN
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REM " TOGGLE QUOTEMODE
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1110 IF QM%=0 THEN QM%=1:GOTO 1190
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1120 QM%=0
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1190 RETURN
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REM # TRAMPOLINE
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1210 X%=X%+DX%
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1220 Y%=Y%+DY%
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1290 RETURN
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REM $ POP
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1310 GOSUB 600
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1390 RETURN
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REM % MODULO (SLOW!)
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1410 GOSUB 600
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1420 E%=D%
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1430 GOSUB 600
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1440 IF D%>E% THEN D%=D%-E%:GOTO 1440
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1450 GOSUB 500
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1490 RETURN
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REM & INPUT INTEGER
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1510 HTAB 1:VTAB 23
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1520 INVERSE:PRINT OS$;:NORMAL
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1530 INPUT "";WT$
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1535 D%=VAL(WT$)
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1537 IF WT$=CHR$(3) THEN RM%=0
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1538 J%=22:GOSUB 320
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1540 GOSUB 500
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1550 OS$=""
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1590 RETURN
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REM * MULTIPLY INTEGERS
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1610 GOSUB 600
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1620 E%=D%
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1630 GOSUB 600
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1640 D%=D%*E%
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1650 GOSUB 500
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1690 RETURN
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REM + ADD INTEGERS
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1710 GOSUB 600
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1720 E%=D%
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1730 GOSUB 600
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1740 D%=D%+E%
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1750 GOSUB 500
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1790 RETURN
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REM , OUTPUT CHARACTER
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1810 GOSUB 600
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1820 IF D%<>10 THEN GOTO 1880
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1825 HTAB 1:VTAB 24
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1830 INVERSE:PRINT OS$;" (EOL)";:NORMAL
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1840 GET WT$:IF WT$=CHR$(3) THEN RM%=0
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1850 OS$=""
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1858 J%=23:GOSUB 320
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1860 RETURN
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1880 OS$=OS$+CHR$(D%)
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1882 IF LEN(OS$)>30 THEN GOTO 1825
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1890 RETURN
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REM - SUBTRACT INTEGERS
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1910 GOSUB 600
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1920 E%=D%
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1930 GOSUB 600
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1940 D%=D%-E%
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1950 GOSUB 500
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1990 RETURN
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REM . OUTPUT INTEGER
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2010 GOSUB 600
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2020 OS$=OS$+STR$(D%)+" "
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2030 IF LEN(OS$)>30 THEN GOTO 1825
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2090 RETURN
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REM / DIVIDE INTEGERS
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2110 GOSUB 600
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2120 E%=D%
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2130 GOSUB 600
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2140 IF E%=0 GOTO 2170
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2150 D%=D%/E%
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2160 GOSUB 500
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2165 RETURN
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2170 PRINT "WHAT DO YOU WANT ";D%;"/";E%;" TO BE";
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2180 INPUT D%
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2185 GOSUB 500
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2190 RETURN
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REM 0-9 PUSH DIGIT
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2210 D%=IR%-48
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2220 GOSUB 500
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2240 RETURN
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REM A-F PUSH HEX DIGIT
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2260 D%=IR%-55
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2270 GOSUB 500
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2290 RETURN
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REM COLON DUP VALUE
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2310 GOSUB 600:GOSUB 500:GOSUB 500
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2390 RETURN
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REM ; IGNORE MODE
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2410 IF IM%=0 THEN IM%=1:GOTO 2490
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2420 IM%=0
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2490 RETURN
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REM < LEFT
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2510 DX%=-1:DY%=0
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2590 RETURN
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REM ~ INPUT CHARACTER
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REM USES = ON APPLE ][+
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2610 HTAB 1:VTAB 24
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2615 INVERSE:PRINT OS$;:NORMAL
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2620 GET WT$
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2626 J%=23:GOSUB 320:REM TRICKY BASTARD!
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2628 IF WT$=CHR$(3) THEN RM%=0
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2630 D%=ASC(WT$)
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2640 GOSUB 500
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2690 RETURN
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REM > RIGHT
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2710 DX%=1:DY%=0
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2790 RETURN
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REM ? RANDOM
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2810 QD%=RND(1)*4+1
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2815 ON QD% GOTO 2820,2830,2840,2850
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2820 DX%= 1:DY%= 0:RETURN
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2830 DX%=-1:DY%= 0:RETURN
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2840 DX%= 0:DY%= 1:RETURN
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2850 DX%= 0:DY%=-1:RETURN
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2890 RETURN
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REM @ END PROGRAM
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2910 HTAB 1:VTAB 24
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2920 INVERSE:PRINT OS$;" (END)";:NORMAL
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2930 GET WT$
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2935 J%=23:GOSUB 320:REM TRICKY BASTARD!
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2940 RM%=0:OS$=""
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2990 RETURN
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REM | UP-DOWN DECISION
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REM USES I ON APPLE ][+
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3010 GOSUB 600
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3015 DX%=0
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3020 IF D%<>0 THEN DY%=-1:GOTO 3090
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3030 DY%=1
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3090 RETURN
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REM ] CALL MACHINE LANGUAGE
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3110 GOSUB 600
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3111 CALL D%
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3190 RETURN
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REM ^ UP
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3210 DX%=0:DY%=-1
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3290 RETURN
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REM _ LEFT-RIGHT DECISION
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3310 GOSUB 600
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3315 DY%=0
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3320 IF D%<>0 THEN DX%=-1:GOTO 3390
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3330 DX%=1
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3390 RETURN
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REM V DOWN
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3410 DX%=0:DY%=1
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3490 RETURN
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REM ` GREATER THAN
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REM USES ' ON APPLE ][+
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3510 GOSUB 600
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3515 E%=D%
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3520 GOSUB 600
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3525 IF D%>E% THEN D%=1:GOTO 3530
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3527 D%=0
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3530 GOSUB 500
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3590 RETURN
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REM G GET FROM SPACE
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3610 GOSUB 600
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3615 E%=D%
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3620 GOSUB 600
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3732 IF D%<0 THEN D%=PEEK(E%):GOTO 3640
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3630 D%=PG%(D%,E%)
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3640 GOSUB 500
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3690 RETURN
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REM P PUT INTO SPACE
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3710 GOSUB 600
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3715 E%=D%
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3720 GOSUB 600
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3725 F%=D%
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3730 GOSUB 600
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3732 IF F%<0 THEN POKE E%,D%:GOTO 3790
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3740 PG%(F%,E%)=D%
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3742 HTAB F%+1:VTAB E%+1:INVERSE:PRINT CHR$(D%);:NORMAL
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3790 RETURN
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REM \ SWAP
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3610 GOSUB 600
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3620 E%=D%
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3630 GOSUB 600
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3640 F%=D%:D%=E%:GOSUB 500
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3650 D%=F%:GOSUB 500
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3690 RETURN
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REM ---------------------------------
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REM LOAD PROGRAM
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6010 HTAB 1:VTAB 23:INPUT "FILENAME: ";F$
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6012 GOSUB 7140
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6015 I=0:J=0
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6020 PRINT D$;"OPEN";F$
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6030 PRINT D$;"READ";F$
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6032 A$="": CALL 64879
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6034 FOR K=512 TO 611: IF PEEK(K)<>141 THEN A$=A$+CHR$(PEEK(K)-128): NEXT
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6042 IF LEFT$(A$,14)="END OF PROGRAM" THEN GOTO 6060
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6045 FOR I=0 TO LEN(A$)-1:PG%(I,J)=ASC(MID$(A$,I+1,1)):NEXT
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6050 J=J+1:GOTO 6032
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6060 PRINT D$;"CLOSE";F$
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6080 GOSUB 300
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6090 RETURN
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REM SAVE PROGRAM
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6210 HTAB 1:VTAB 23:INPUT "FILENAME: ";F$
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6215 I=0
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6220 PRINT D$;"OPEN";F$
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6230 PRINT D$;"WRITE";F$
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6242 FOR J=0 TO 24
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6244 FOR I=0 TO 39:PRINT CHR$(PG%(I,J));:NEXT
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6246 PRINT: NEXT
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6248 PRINT "END OF PROGRAM"
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6250 PRINT D$;"CLOSE";F$
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6280 GOSUB 300
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6290 RETURN
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REM EXAMINE STACK
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7010 HTAB 1:VTAB 20:QQ$=""
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7012 D%=0
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7014 IF D%=SP% GOTO 7020
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7016 QQ$=QQ$+STR$(ST%(D%))+" "
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7018 D%=D%+1:GOTO 7014
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7020 INVERSE:PRINT QQ$;:NORMAL
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7030 GET WT$
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7035 J%=19:GOSUB 320
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7090 RETURN
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REM SINGLE STEP
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7110 IF QM%=1 THEN GOSUB 910:GOTO 7114
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7112 IF IM%=0 OR IR%=59 THEN GOSUB 400
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7114 GOSUB 250
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7116 RETURN
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REM NEW PLAYFIELD
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7140 J%=0
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7150 I%=0
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7160 PG%(I%,J%)=32
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7170 I%=I%+1:IF I%<40 THEN GOTO 7160
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7180 J%=J%+1:IF J%<24 THEN GOTO 7150
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7190 RETURN
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REM INITIALIZE AND SHOW ABOUT BOX
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8000 DIM PG%(79,24)
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8010 DIM ST%(256)
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8020 X%=0:Y%=0:DX%=1:DY%=0:QM%=0:IM%=0:RM%=0
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8030 I%=0:J%=0:IR%=0:SP%=0:D%=0:E%=0:F%=0
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8040 OS$="":D$=CHR$(4)
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8050 HOME:VTAB 7
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8053 HTAB 4:PRINT " ______________________________"
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8055 HTAB 4:PRINT "/ \"
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8056 HTAB 4:PRINT "\ APPLE BEFUNGE V1.1 /"
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8058 HTAB 4:PRINT "/ ------------------ \"
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8060 HTAB 4:PRINT "\ BY CAT'S EYE TECHNOLOGIES /"
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8062 HTAB 4:PRINT "/ HTTP://WWW.CATSEYE.TC/ \"
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8063 HTAB 4:PRINT "\ PUBLIC DOMAIN, FEB 2012 /"
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8064 HTAB 4:PRINT "/ BASED ON BEFUNGE-93 & -96+ \"
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8066 HTAB 4:PRINT "\ PRESS CTRL+I FOR HELP INFO /"
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8068 HTAB 4:PRINT "/ LONG LIVE RETROCOMPUTING :-) \"
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8070 HTAB 4:PRINT "\______________________________/"
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8080 HTAB 4:PRINT " INITIALIZING, PLEASE WAIT... ";
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8090 GOSUB 7140
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8100 VTAB 18:HTAB 4:PRINT " PRESS RETURN KEY TO CONTINUE ";
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8110 GET WT$:GOSUB 300
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8120 RETURN
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RUN
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