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P/Dtext1
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Personal collection » Acorn ADFS disks » Electron_User_Group » EUG_19.ADF |
| Filename: | P/Dtext1 |
| Read OK: | ✔ |
| File size: | 1692 bytes |
| Load address: | 44204556 |
| Exec address: | 74786574 |
File contents
Viewing memory. A BASIC program can be listed but sometimes it is necessary to actually examine it in memory perhaps to see what has gone wrong. There are three ways of doing this, firstly by disassembling it.Here you will get a screen full of opcodes looking somewhat like an assembly language program. Secondly by listing it as ASCII and control codes. This will look rather like a screen full of HEX numbers. Thirdly as actual ASCII characters. Control codes will usually appear as innocuous symbols. The program featured here does the second an third method. To do the first would require a much larger program not least because every opcode would need to be detailed in DATA statements. If you have a program in memory say at PAGE and you want to see it it's no use LOADing this program because you will over write the begining of the program you want to see. You need to move PAGE to a high area of memory just below the screen area and then *LOAD and RUN this program from there. At the begining of the program are definations for the variables S and N. S is the point of memory where you want to start looking while N if the ammount of memory you waht to look at. For the moment S has been set to &1D00 while S is &FF. RUN the program and look at the screen. Where hex number is &0F or below only a single figure is produced ie F The first number is D. This is a control code for 'start of line'. All BASIC programs in memory start with &0D if they are to work. The second number is 0 while the third is A. This is the first line number. &0A = 10 and the first line is indeed 10. The 0 is the high byte in this case &00. Think of the meter in your car which tells you how far you have driven If you have done 10 miles then the meter might show 0010. To prove this enter RENUMBER 10000 <RET> then run the program. Now the second number will be &27 with the third 10 because &2710 = 10000 The fourth number is the length of the line here &12. If you count the number of places from the first &0D to the next you will find that there are indeed &12 or 18. Try to get use to using HEX. One tip I have is to think of &15 as ampersand one five and not as fifteen which it isn't in any case. Next comes &F4. This is the control code for REM. While &20 is the control code for space. Then of course comes a series of ASCII (anyone seen Arthur) codes representing the letters D, I, S and so on. Nothing to it really. ASCII codes are listed in the back of your user guide. The control codes I will give you now. I worked these out some time ago by typing in all of the keywords listed in the user guide and then looking at the memory. I then wrote then into the user guide next to each of the keywords. Some keywords have two codes usually to indicate anextra symbol such as 23 for #. Five keywords don't appear to have any particular codes for some reason. ABS 94 LOAD C8 ASC 95 LOCAL EA ADVAL 96 LOG AB AND 80 LOMEM D2 ASC 97 MID$ C1 ASN 98 MOD 83 ATN 99 MODE EB AUTO C6 MOVE EC BGET# 9A 23 NEW CA BPUT# D5 23 NEXT ED CALL D6 NOT AC CHAIN D7 OLD CB CHR$ BD ON EE CLEAR D8 OPENIN 8E CLG DA OPENOUT AE CLOSE# D9 23 OPENUP AD CLS DB OPT COLOUR FB OR 84 COS 9B OSCLI FF COUNT 9C PAGE D0 DATA DC PI AF DEF DD PLOT F0 DEG 9D POINT B0 DELETE C7 POS B1 DIM DE PRINT F1 DIV 81 PRINT# F1 23 DRAW DF PROC F2 ELSE 8B PTR# CF 23 END E0 RAD B2 ENDPROC E1 READ F3 ENVELOPE E2 REM F4 EOF# C5 RENUMBER CC EOR 82 REPEAT F5 EQUB REPORT F6 EQUD RESTORE F7 EQUS RETURN F8 EQUW RIGHT$ C2 ERL 9E RND B3 ERR 9F RUN F9 EVAL A0 SAVE CD EXP A1 SNG B4 EXT# A2 SIN B5 FALSE A3 SOUND D4 FN A4 SPC 89 FOR E3 SQR B6 GCOL E6 STEP 88 GET A5 STOP FA GET$ BE STR$ C3 GOSUB E4 STRING$ C4 GOTO E5 TAB 8A HIMEM D3 TAN B7 IF E7 THEN 8C INKEY A6 TIME D1 INKEY$ BF TO B8 INPUT E8 TOP B8 5D INPUT# E8 23 TRACE FC INSTR A7 TRUE B9 INT A8 UNTIL FD LEFT$ C0 USR BA LEN A9 VAL BB LET E9 VDU EF LIST C9 VPOS BC LISTO C9 4F WIDTH FE LN AA
00000000 56 69 65 77 69 6e 67 20 6d 65 6d 6f 72 79 2e 0d |Viewing memory..| 00000010 0d 41 20 42 41 53 49 43 20 70 72 6f 67 72 61 6d |.A BASIC program| 00000020 20 63 61 6e 20 62 65 20 6c 69 73 74 65 64 20 62 | can be listed b| 00000030 75 74 20 73 6f 6d 65 74 69 6d 65 73 20 69 74 20 |ut sometimes it | 00000040 69 73 20 6e 65 63 65 73 73 61 72 79 20 74 6f 20 |is necessary to | 00000050 0d 61 63 74 75 61 6c 6c 79 20 65 78 61 6d 69 6e |.actually examin| 00000060 65 20 69 74 20 69 6e 20 6d 65 6d 6f 72 79 20 70 |e it in memory p| 00000070 65 72 68 61 70 73 20 74 6f 20 73 65 65 20 77 68 |erhaps to see wh| 00000080 61 74 20 68 61 73 20 0d 67 6f 6e 65 20 77 72 6f |at has .gone wro| 00000090 6e 67 2e 0d 0d 54 68 65 72 65 20 61 72 65 20 74 |ng...There are t| 000000a0 68 72 65 65 20 77 61 79 73 20 6f 66 20 64 6f 69 |hree ways of doi| 000000b0 6e 67 20 74 68 69 73 2c 20 66 69 72 73 74 6c 79 |ng this, firstly| 000000c0 20 62 79 20 64 69 73 61 73 73 65 6d 62 6c 69 6e | by disassemblin| 000000d0 67 20 0d 69 74 2e 10 48 65 72 65 20 79 6f 75 20 |g .it..Here you | 000000e0 77 69 6c 6c 20 67 65 74 20 61 20 73 63 72 65 65 |will get a scree| 000000f0 6e 20 66 75 6c 6c 20 6f 66 20 6f 70 63 6f 64 65 |n full of opcode| 00000100 73 20 6c 6f 6f 6b 69 6e 67 20 0d 73 6f 6d 65 77 |s looking .somew| 00000110 68 61 74 20 10 6c 69 6b 65 20 61 6e 20 61 73 73 |hat .like an ass| 00000120 65 6d 62 6c 79 20 6c 61 6e 67 75 61 67 65 20 70 |embly language p| 00000130 72 6f 67 72 61 6d 2e 20 53 65 63 6f 6e 64 6c 79 |rogram. Secondly| 00000140 20 62 79 20 0d 6c 69 73 74 69 6e 67 20 69 74 20 | by .listing it | 00000150 61 73 20 10 41 53 43 49 49 20 61 6e 64 20 63 6f |as .ASCII and co| 00000160 6e 74 72 6f 6c 20 63 6f 64 65 73 2e 20 54 68 69 |ntrol codes. Thi| 00000170 73 20 77 69 6c 6c 20 6c 6f 6f 6b 20 72 61 74 68 |s will look rath| 00000180 65 72 20 0d 6c 69 6b 65 20 61 20 73 63 72 65 65 |er .like a scree| 00000190 6e 20 10 66 75 6c 6c 20 6f 66 20 48 45 58 20 6e |n .full of HEX n| 000001a0 75 6d 62 65 72 73 2e 20 54 68 69 72 64 6c 79 20 |umbers. Thirdly | 000001b0 61 73 20 61 63 74 75 61 6c 20 41 53 43 49 49 20 |as actual ASCII | 000001c0 0d 63 68 61 72 61 63 74 65 72 73 2e 20 10 43 6f |.characters. .Co| 000001d0 6e 74 72 6f 6c 20 63 6f 64 65 73 20 77 69 6c 6c |ntrol codes will| 000001e0 20 75 73 75 61 6c 6c 79 20 61 70 70 65 61 72 20 | usually appear | 000001f0 61 73 20 69 6e 6e 6f 63 75 6f 75 73 20 0d 73 79 |as innocuous .sy| 00000200 6d 62 6f 6c 73 2e 0d 0d 54 68 65 20 70 72 6f 67 |mbols...The prog| 00000210 72 61 6d 20 66 65 61 74 75 72 65 64 20 68 65 72 |ram featured her| 00000220 65 20 64 6f 65 73 20 74 68 65 20 73 65 63 6f 6e |e does the secon| 00000230 64 20 61 6e 20 74 68 69 72 64 20 6d 65 74 68 6f |d an third metho| 00000240 64 2e 0d 0d 54 6f 20 64 6f 20 74 68 65 20 66 69 |d...To do the fi| 00000250 72 73 74 20 77 6f 75 6c 64 20 72 65 71 75 69 72 |rst would requir| 00000260 65 20 61 20 6d 75 63 68 20 6c 61 72 67 65 72 20 |e a much larger | 00000270 70 72 6f 67 72 61 6d 20 6e 6f 74 20 6c 65 61 73 |program not leas| 00000280 74 20 0d 62 65 63 61 75 73 65 20 65 76 65 72 79 |t .because every| 00000290 20 6f 70 63 6f 64 65 20 77 6f 75 6c 64 20 6e 65 | opcode would ne| 000002a0 65 64 20 74 6f 20 62 65 20 64 65 74 61 69 6c 65 |ed to be detaile| 000002b0 64 20 69 6e 20 44 41 54 41 20 0d 73 74 61 74 65 |d in DATA .state| 000002c0 6d 65 6e 74 73 2e 0d 0d 49 66 20 79 6f 75 20 68 |ments...If you h| 000002d0 61 76 65 20 61 20 70 72 6f 67 72 61 6d 20 69 6e |ave a program in| 000002e0 20 6d 65 6d 6f 72 79 20 73 61 79 20 61 74 20 50 | memory say at P| 000002f0 41 47 45 20 61 6e 64 20 79 6f 75 20 77 61 6e 74 |AGE and you want| 00000300 20 74 6f 20 73 65 65 20 0d 69 74 20 69 74 27 73 | to see .it it's| 00000310 20 6e 6f 20 75 73 65 20 4c 4f 41 44 69 6e 67 20 | no use LOADing | 00000320 74 68 69 73 20 70 72 6f 67 72 61 6d 20 20 62 65 |this program be| 00000330 63 61 75 73 65 20 79 6f 75 20 77 69 6c 6c 20 6f |cause you will o| 00000340 76 65 72 20 0d 77 72 69 74 65 20 74 68 65 20 62 |ver .write the b| 00000350 65 67 69 6e 69 6e 67 20 6f 66 20 74 68 65 20 70 |egining of the p| 00000360 72 6f 67 72 61 6d 20 79 6f 75 20 77 61 6e 74 20 |rogram you want | 00000370 74 6f 20 73 65 65 2e 20 0d 0d 59 6f 75 20 6e 65 |to see. ..You ne| 00000380 65 64 20 74 6f 20 6d 6f 76 65 20 50 41 47 45 20 |ed to move PAGE | 00000390 74 6f 20 61 20 68 69 67 68 20 61 72 65 61 20 6f |to a high area o| 000003a0 66 20 6d 65 6d 6f 72 79 20 6a 75 73 74 20 62 65 |f memory just be| 000003b0 6c 6f 77 20 74 68 65 20 0d 73 63 72 65 65 6e 20 |low the .screen | 000003c0 61 72 65 61 20 61 6e 64 20 74 68 65 6e 20 2a 4c |area and then *L| 000003d0 4f 41 44 20 61 6e 64 20 52 55 4e 20 74 68 69 73 |OAD and RUN this| 000003e0 20 70 72 6f 67 72 61 6d 20 66 72 6f 6d 20 74 68 | program from th| 000003f0 65 72 65 2e 20 41 74 20 0d 74 68 65 20 62 65 67 |ere. At .the beg| 00000400 69 6e 69 6e 67 20 6f 66 20 74 68 65 20 70 72 6f |ining of the pro| 00000410 67 72 61 6d 20 61 72 65 20 64 65 66 69 6e 61 74 |gram are definat| 00000420 69 6f 6e 73 20 66 6f 72 20 74 68 65 20 76 61 72 |ions for the var| 00000430 69 61 62 6c 65 73 20 53 20 0d 61 6e 64 20 4e 2e |iables S .and N.| 00000440 20 53 20 69 73 20 74 68 65 20 70 6f 69 6e 74 20 | S is the point | 00000450 6f 66 20 6d 65 6d 6f 72 79 20 77 68 65 72 65 20 |of memory where | 00000460 79 6f 75 20 77 61 6e 74 20 74 6f 20 73 74 61 72 |you want to star| 00000470 74 20 6c 6f 6f 6b 69 6e 67 20 0d 77 68 69 6c 65 |t looking .while| 00000480 20 4e 20 69 66 20 74 68 65 20 61 6d 6d 6f 75 6e | N if the ammoun| 00000490 74 20 6f 66 20 6d 65 6d 6f 72 79 20 79 6f 75 20 |t of memory you | 000004a0 77 61 68 74 20 74 6f 20 6c 6f 6f 6b 20 61 74 2e |waht to look at.| 000004b0 20 46 6f 72 20 74 68 65 20 0d 6d 6f 6d 65 6e 74 | For the .moment| 000004c0 20 53 20 68 61 73 20 62 65 65 6e 20 73 65 74 20 | S has been set | 000004d0 74 6f 20 26 31 44 30 30 20 77 68 69 6c 65 20 53 |to &1D00 while S| 000004e0 20 69 73 20 26 46 46 2e 0d 0d 52 55 4e 20 74 68 | is &FF...RUN th| 000004f0 65 20 70 72 6f 67 72 61 6d 20 61 6e 64 20 6c 6f |e program and lo| 00000500 6f 6b 20 61 74 20 74 68 65 20 73 63 72 65 65 6e |ok at the screen| 00000510 2e 20 57 68 65 72 65 20 68 65 78 20 10 6e 75 6d |. Where hex .num| 00000520 62 65 72 20 69 73 20 0d 26 30 46 20 6f 72 20 62 |ber is .&0F or b| 00000530 65 6c 6f 77 20 6f 6e 6c 79 20 61 20 73 69 6e 67 |elow only a sing| 00000540 6c 65 20 66 69 67 75 72 65 20 69 73 20 70 72 6f |le figure is pro| 00000550 64 75 63 65 64 20 69 65 20 20 46 0d 0d 54 68 65 |duced ie F..The| 00000560 20 66 69 72 73 74 20 6e 75 6d 62 65 72 20 69 73 | first number is| 00000570 20 44 2e 20 54 68 69 73 20 69 73 20 61 20 63 6f | D. This is a co| 00000580 6e 74 72 6f 6c 20 63 6f 64 65 20 66 6f 72 20 27 |ntrol code for '| 00000590 73 74 61 72 74 20 6f 66 20 0d 6c 69 6e 65 27 2e |start of .line'.| 000005a0 20 41 6c 6c 20 10 42 41 53 49 43 20 70 72 6f 67 | All .BASIC prog| 000005b0 72 61 6d 73 20 69 6e 20 6d 65 6d 6f 72 79 20 73 |rams in memory s| 000005c0 74 61 72 74 20 77 69 74 68 20 26 30 44 20 69 66 |tart with &0D if| 000005d0 20 74 68 65 79 20 0d 61 72 65 20 74 6f 20 77 6f | they .are to wo| 000005e0 72 6b 2e 20 10 54 68 65 20 73 65 63 6f 6e 64 20 |rk. .The second | 000005f0 6e 75 6d 62 65 72 20 69 73 20 30 20 77 68 69 6c |number is 0 whil| 00000600 65 20 74 68 65 20 74 68 69 72 64 20 69 73 20 41 |e the third is A| 00000610 2e 20 0d 54 68 69 73 20 69 73 20 74 68 65 20 66 |. .This is the f| 00000620 69 72 73 74 20 10 6c 69 6e 65 20 6e 75 6d 62 65 |irst .line numbe| 00000630 72 2e 20 26 30 41 20 3d 20 31 30 20 61 6e 64 20 |r. &0A = 10 and | 00000640 74 68 65 20 66 69 72 73 74 20 6c 69 6e 65 20 69 |the first line i| 00000650 73 20 0d 69 6e 64 65 65 64 20 31 30 2e 20 54 68 |s .indeed 10. Th| 00000660 65 20 30 20 10 69 73 20 74 68 65 20 68 69 67 68 |e 0 .is the high| 00000670 20 62 79 74 65 20 69 6e 20 74 68 69 73 20 63 61 | byte in this ca| 00000680 73 65 20 26 30 30 2e 20 54 68 69 6e 6b 20 6f 66 |se &00. Think of| 00000690 20 0d 74 68 65 20 6d 65 74 65 72 20 69 6e 20 79 | .the meter in y| 000006a0 6f 75 72 20 10 63 61 72 20 77 68 69 63 68 20 74 |our .car which t| 000006b0 65 6c 6c 73 20 79 6f 75 20 68 6f 77 20 66 61 72 |ells you how far| 000006c0 20 79 6f 75 20 68 61 76 65 20 64 72 69 76 65 6e | you have driven| 000006d0 20 0d 49 66 20 79 6f 75 20 68 61 76 65 20 64 6f | .If you have do| 000006e0 6e 65 20 10 31 30 20 6d 69 6c 65 73 20 74 68 65 |ne .10 miles the| 000006f0 6e 20 74 68 65 20 6d 65 74 65 72 20 6d 69 67 68 |n the meter migh| 00000700 74 20 73 68 6f 77 20 30 30 31 30 2e 20 54 6f 20 |t show 0010. To | 00000710 0d 70 72 6f 76 65 20 74 68 69 73 20 65 6e 74 65 |.prove this ente| 00000720 72 20 10 52 45 4e 55 4d 42 45 52 20 31 30 30 30 |r .RENUMBER 1000| 00000730 30 20 3c 52 45 54 3e 20 74 68 65 6e 20 72 75 6e |0 <RET> then run| 00000740 20 74 68 65 20 70 72 6f 67 72 61 6d 2e 20 0d 4e | the program. .N| 00000750 6f 77 20 74 68 65 20 73 65 63 6f 6e 64 20 10 6e |ow the second .n| 00000760 75 6d 62 65 72 20 77 69 6c 6c 20 62 65 20 26 32 |umber will be &2| 00000770 37 20 77 69 74 68 20 74 68 65 20 74 68 69 72 64 |7 with the third| 00000780 20 31 30 20 62 65 63 61 75 73 65 20 0d 26 32 37 | 10 because .&27| 00000790 31 30 20 3d 20 31 30 30 30 30 0d 0d 54 68 65 20 |10 = 10000..The | 000007a0 66 6f 75 72 74 68 20 6e 75 6d 62 65 72 20 69 73 |fourth number is| 000007b0 20 74 68 65 20 6c 65 6e 67 74 68 20 6f 66 20 74 | the length of t| 000007c0 68 65 20 6c 69 6e 65 20 68 65 72 65 20 26 31 32 |he line here &12| 000007d0 2e 20 49 66 20 79 6f 75 20 0d 63 6f 75 6e 74 20 |. If you .count | 000007e0 74 68 65 20 6e 75 6d 62 65 72 20 6f 66 20 70 6c |the number of pl| 000007f0 61 63 65 73 20 66 72 6f 6d 20 74 68 65 20 66 69 |aces from the fi| 00000800 72 73 74 20 26 30 44 20 74 6f 20 74 68 65 20 6e |rst &0D to the n| 00000810 65 78 74 20 79 6f 75 20 0d 77 69 6c 6c 20 66 69 |ext you .will fi| 00000820 6e 64 20 74 68 61 74 20 74 68 65 72 65 20 61 72 |nd that there ar| 00000830 65 20 69 6e 64 65 65 64 20 26 31 32 20 6f 72 20 |e indeed &12 or | 00000840 31 38 2e 20 54 72 79 20 74 6f 20 67 65 74 20 75 |18. Try to get u| 00000850 73 65 20 74 6f 20 0d 75 73 69 6e 67 20 48 45 58 |se to .using HEX| 00000860 2e 20 4f 6e 65 20 74 69 70 20 49 20 68 61 76 65 |. One tip I have| 00000870 20 69 73 20 74 6f 20 74 68 69 6e 6b 20 6f 66 20 | is to think of | 00000880 26 31 35 20 61 73 20 61 6d 70 65 72 73 61 6e 64 |&15 as ampersand| 00000890 20 6f 6e 65 20 0d 66 69 76 65 20 61 6e 64 20 6e | one .five and n| 000008a0 6f 74 20 61 73 20 66 69 66 74 65 65 6e 20 77 68 |ot as fifteen wh| 000008b0 69 63 68 20 69 74 20 69 73 6e 27 74 20 69 6e 20 |ich it isn't in | 000008c0 61 6e 79 20 63 61 73 65 2e 0d 0d 4e 65 78 74 20 |any case...Next | 000008d0 63 6f 6d 65 73 20 26 46 34 2e 20 54 68 69 73 20 |comes &F4. This | 000008e0 69 73 20 74 68 65 20 63 6f 6e 74 72 6f 6c 20 63 |is the control c| 000008f0 6f 64 65 20 66 6f 72 20 52 45 4d 2e 20 57 68 69 |ode for REM. Whi| 00000900 6c 65 20 26 32 30 20 69 73 20 0d 74 68 65 20 63 |le &20 is .the c| 00000910 6f 6e 74 72 6f 6c 20 63 6f 64 65 20 66 6f 72 20 |ontrol code for | 00000920 73 70 61 63 65 2e 20 54 68 65 6e 20 6f 66 20 63 |space. Then of c| 00000930 6f 75 72 73 65 20 63 6f 6d 65 73 20 61 20 73 65 |ourse comes a se| 00000940 72 69 65 73 20 6f 66 20 0d 41 53 43 49 49 20 28 |ries of .ASCII (| 00000950 61 6e 79 6f 6e 65 20 73 65 65 6e 20 41 72 74 68 |anyone seen Arth| 00000960 75 72 29 20 63 6f 64 65 73 20 72 65 70 72 65 73 |ur) codes repres| 00000970 65 6e 74 69 6e 67 20 74 68 65 20 6c 65 74 74 65 |enting the lette| 00000980 72 73 20 44 2c 20 49 2c 20 0d 53 20 61 6e 64 20 |rs D, I, .S and | 00000990 73 6f 20 6f 6e 2e 20 0d 0d 4e 6f 74 68 69 6e 67 |so on. ..Nothing| 000009a0 20 74 6f 20 69 74 20 72 65 61 6c 6c 79 2e 20 41 | to it really. A| 000009b0 53 43 49 49 20 63 6f 64 65 73 20 61 72 65 20 6c |SCII codes are l| 000009c0 69 73 74 65 64 20 69 6e 20 74 68 65 20 62 61 63 |isted in the bac| 000009d0 6b 20 6f 66 20 0d 79 6f 75 72 20 75 73 65 72 20 |k of .your user | 000009e0 67 75 69 64 65 2e 20 54 68 65 20 63 6f 6e 74 72 |guide. The contr| 000009f0 6f 6c 20 63 6f 64 65 73 20 49 20 77 69 6c 6c 20 |ol codes I will | 00000a00 67 69 76 65 20 79 6f 75 20 6e 6f 77 2e 0d 0d 49 |give you now...I| 00000a10 20 77 6f 72 6b 65 64 20 74 68 65 73 65 20 6f 75 | worked these ou| 00000a20 74 20 73 6f 6d 65 20 74 69 6d 65 20 61 67 6f 20 |t some time ago | 00000a30 62 79 20 74 79 70 69 6e 67 20 69 6e 20 61 6c 6c |by typing in all| 00000a40 20 6f 66 20 74 68 65 20 0d 6b 65 79 77 6f 72 64 | of the .keyword| 00000a50 73 20 6c 69 73 74 65 64 20 69 6e 20 74 68 65 20 |s listed in the | 00000a60 75 73 65 72 20 67 75 69 64 65 20 61 6e 64 20 74 |user guide and t| 00000a70 68 65 6e 20 6c 6f 6f 6b 69 6e 67 20 61 74 20 74 |hen looking at t| 00000a80 68 65 20 0d 6d 65 6d 6f 72 79 2e 20 49 20 74 68 |he .memory. I th| 00000a90 65 6e 20 77 72 6f 74 65 20 74 68 65 6e 20 69 6e |en wrote then in| 00000aa0 74 6f 20 74 68 65 20 75 73 65 72 20 67 75 69 64 |to the user guid| 00000ab0 65 20 6e 65 78 74 20 74 6f 20 65 61 63 68 20 6f |e next to each o| 00000ac0 66 20 0d 74 68 65 20 6b 65 79 77 6f 72 64 73 2e |f .the keywords.| 00000ad0 0d 0d 53 6f 6d 65 20 6b 65 79 77 6f 72 64 73 20 |..Some keywords | 00000ae0 68 61 76 65 20 74 77 6f 20 63 6f 64 65 73 20 75 |have two codes u| 00000af0 73 75 61 6c 6c 79 20 74 6f 20 69 6e 64 69 63 61 |sually to indica| 00000b00 74 65 20 61 6e 10 65 78 74 72 61 20 0d 73 79 6d |te an.extra .sym| 00000b10 62 6f 6c 20 73 75 63 68 20 61 73 20 32 33 20 66 |bol such as 23 f| 00000b20 6f 72 20 23 2e 20 46 69 76 65 20 6b 65 79 77 6f |or #. Five keywo| 00000b30 72 64 73 20 64 6f 6e 27 74 20 61 70 70 65 61 72 |rds don't appear| 00000b40 20 74 6f 20 68 61 76 65 20 0d 61 6e 79 20 10 70 | to have .any .p| 00000b50 61 72 74 69 63 75 6c 61 72 20 63 6f 64 65 73 20 |articular codes | 00000b60 66 6f 72 20 73 6f 6d 65 20 72 65 61 73 6f 6e 2e |for some reason.| 00000b70 0d 0d 41 42 53 20 20 20 20 20 20 39 34 20 20 20 |..ABS 94 | 00000b80 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 00000b90 20 20 20 4c 4f 41 44 20 20 20 20 20 43 38 0d 41 | LOAD C8.A| 00000ba0 53 43 20 20 20 20 20 20 39 35 20 20 20 20 20 20 |SC 95 | 00000bb0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 00000bc0 4c 4f 43 41 4c 20 20 20 20 45 41 0d 41 44 56 41 |LOCAL EA.ADVA| 00000bd0 4c 20 20 20 20 39 36 20 20 20 20 20 20 20 20 20 |L 96 | 00000be0 20 20 20 20 20 20 20 20 20 20 20 20 20 4c 4f 47 | LOG| 00000bf0 20 20 20 20 20 20 41 42 0d 41 4e 44 20 20 20 20 | AB.AND | 00000c00 20 20 38 30 20 20 20 20 20 20 20 20 20 20 20 20 | 80 | 00000c10 20 20 20 20 20 20 20 20 20 20 4c 4f 4d 45 4d 20 | LOMEM | 00000c20 20 20 20 44 32 0d 41 53 43 20 20 20 20 20 20 39 | D2.ASC 9| 00000c30 37 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |7 | 00000c40 20 20 20 20 20 20 20 4d 49 44 24 20 20 20 20 20 | MID$ | 00000c50 43 31 0d 41 53 4e 20 20 20 20 20 20 39 38 20 20 |C1.ASN 98 | 00000c60 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 00000c70 20 20 20 20 4d 4f 44 20 20 20 20 20 20 38 33 0d | MOD 83.| 00000c80 41 54 4e 20 20 20 20 20 20 39 39 20 20 20 20 20 |ATN 99 | 00000c90 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 00000ca0 20 4d 4f 44 45 20 20 20 20 20 45 42 0d 41 55 54 | MODE EB.AUT| 00000cb0 4f 20 20 20 20 20 43 36 20 20 20 20 20 20 20 20 |O C6 | 00000cc0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 4d 4f | MO| 00000cd0 56 45 20 20 20 20 20 45 43 0d 42 47 45 54 23 20 |VE EC.BGET# | 00000ce0 20 20 20 39 41 20 32 33 20 20 20 20 20 20 20 20 | 9A 23 | 00000cf0 20 20 20 20 20 20 20 20 20 20 20 4e 45 57 20 20 | NEW | 00000d00 20 20 20 20 43 41 0d 42 50 55 54 23 20 20 20 20 | CA.BPUT# | 00000d10 44 35 20 32 33 20 20 20 20 20 20 20 20 20 20 20 |D5 23 | 00000d20 20 20 20 20 20 20 20 20 4e 45 58 54 20 20 20 20 | NEXT | 00000d30 20 45 44 0d 43 41 4c 4c 20 20 20 20 20 44 36 20 | ED.CALL D6 | 00000d40 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 00000d50 20 20 20 20 20 4e 4f 54 20 20 20 20 20 20 41 43 | NOT AC| 00000d60 0d 43 48 41 49 4e 20 20 20 20 44 37 20 20 20 20 |.CHAIN D7 | 00000d70 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 00000d80 20 20 4f 4c 44 20 20 20 20 20 20 43 42 0d 43 48 | OLD CB.CH| 00000d90 52 24 20 20 20 20 20 42 44 20 20 20 20 20 20 20 |R$ BD | 00000da0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 4f | O| 00000db0 4e 20 20 20 20 20 20 20 45 45 0d 43 4c 45 41 52 |N EE.CLEAR| 00000dc0 20 20 20 20 44 38 20 20 20 20 20 20 20 20 20 20 | D8 | 00000dd0 20 20 20 20 20 20 20 20 20 20 20 20 4f 50 45 4e | OPEN| 00000de0 49 4e 20 20 20 38 45 0d 43 4c 47 20 20 20 20 20 |IN 8E.CLG | 00000df0 20 44 41 20 20 20 20 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20 |5 | 000013a0 20 20 20 20 20 20 20 53 54 4f 50 20 20 20 20 20 | STOP | 000013b0 46 41 0d 47 45 54 24 20 20 20 20 20 42 45 20 20 |FA.GET$ BE | 000013c0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 000013d0 20 20 20 20 53 54 52 24 20 20 20 20 20 43 33 0d | STR$ C3.| 000013e0 47 4f 53 55 42 20 20 20 20 45 34 20 20 20 20 20 |GOSUB E4 | 000013f0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 00001400 20 53 54 52 49 4e 47 24 20 20 43 34 0d 47 4f 54 | STRING$ C4.GOT| 00001410 4f 20 20 20 20 20 45 35 20 20 20 20 20 20 20 20 |O E5 | 00001420 20 20 20 20 20 20 20 20 20 20 20 20 20 20 54 41 | TA| 00001430 42 20 20 20 20 20 20 38 41 0d 48 49 4d 45 4d 20 |B 8A.HIMEM | 00001440 20 20 20 44 33 20 20 20 20 20 20 20 20 20 20 20 | D3 | 00001450 20 20 20 20 20 20 20 20 20 20 20 54 41 4e 20 20 | TAN | 00001460 20 20 20 20 42 37 0d 49 46 20 20 20 20 20 20 20 | B7.IF | 00001470 45 37 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |E7 | 00001480 20 20 20 20 20 20 20 20 54 48 45 4e 20 20 20 20 | THEN | 00001490 20 38 43 0d 49 4e 4b 45 59 20 20 20 20 41 36 20 | 8C.INKEY A6 | 000014a0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 000014b0 20 20 20 20 20 54 49 4d 45 20 20 20 20 20 44 31 | TIME D1| 000014c0 0d 49 4e 4b 45 59 24 20 20 20 42 46 20 20 20 20 |.INKEY$ BF | 000014d0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 000014e0 20 20 54 4f 20 20 20 20 20 20 20 42 38 0d 49 4e | TO B8.IN| 000014f0 50 55 54 20 20 20 20 45 38 20 20 20 20 20 20 20 |PUT E8 | 00001500 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 54 | T| 00001510 4f 50 20 20 20 20 20 20 42 38 20 35 44 0d 49 4e |OP B8 5D.IN| 00001520 50 55 54 23 20 20 20 45 38 20 32 33 20 20 20 20 |PUT# E8 23 | 00001530 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 54 | T| 00001540 52 41 43 45 20 20 20 20 46 43 0d 49 4e 53 54 52 |RACE FC.INSTR| 00001550 20 20 20 20 41 37 20 20 20 20 20 20 20 20 20 20 | A7 | 00001560 20 20 20 20 20 20 20 20 20 20 20 20 54 52 55 45 | TRUE| 00001570 20 20 20 20 20 42 39 0d 49 4e 54 20 20 20 20 20 | B9.INT | 00001580 20 41 38 20 20 20 20 20 20 20 20 20 20 20 20 20 | A8 | 00001590 20 20 20 20 20 20 20 20 20 55 4e 54 49 4c 20 20 | UNTIL | 000015a0 20 20 46 44 0d 4c 45 46 54 24 20 20 20 20 43 30 | FD.LEFT$ C0| 000015b0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 000015c0 20 20 20 20 20 20 55 53 52 20 20 20 20 20 20 42 | USR B| 000015d0 41 0d 4c 45 4e 20 20 20 20 20 20 41 39 20 20 20 |A.LEN A9 | 000015e0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 000015f0 20 20 20 56 41 4c 20 20 20 20 20 20 42 42 0d 4c | VAL BB.L| 00001600 45 54 20 20 20 20 20 20 45 39 20 20 20 20 20 20 |ET E9 | 00001610 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 00001620 56 44 55 20 20 20 20 20 20 45 46 0d 4c 49 53 54 |VDU EF.LIST| 00001630 20 20 20 20 20 43 39 20 20 20 20 20 20 20 20 20 | C9 | 00001640 20 20 20 20 20 20 20 20 20 20 20 20 20 56 50 4f | VPO| 00001650 53 20 20 20 20 20 42 43 0d 4c 49 53 54 4f 20 20 |S BC.LISTO | 00001660 20 20 43 39 20 34 46 20 20 20 20 20 20 20 20 20 | C9 4F | 00001670 20 20 20 20 20 20 20 20 20 20 57 49 44 54 48 20 | WIDTH | 00001680 20 20 20 46 45 0d 4c 4e 20 20 20 20 20 20 20 41 | FE.LN A| 00001690 41 0d |A.| 00001692
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