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Letter
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 » EUG_submission_1.ADF |
| Filename: | Letter |
| Read OK: | ✔ |
| File size: | 0E99 bytes |
| Load address: | 4C204556 |
| Exec address: | 65747465 |
Duplicates
There is 1 duplicate copy of this file in the archive:
- Personal collection » Acorn ADFS disks » Electron » EUG_submission_1.ADF » Letter
- Personal collection » Acorn ADFS disks » Electron » View_1.ADF » EUG/Letter
File contents
�.........*.......*.......*.......*.......*.......*.......*.......*.......*.<
Matthew Ford
27th November 1994
Dear Gus,
I have sent in a number of contributions for the disc, though there
may be too much for one issue. The most interesting (in my opinion) is a
program to turn pictures into apparently meaningless patterns of dots
called autostereograms. I have also adapted the Electon User's Banner
printing program (June 1989) to print large messages on the screen, and
have made some improvements to the Diagram screen dump from EUG16. These
programs are described in seperate articles
In EUG9 Christopher Chadwick sent in a conversion of "Mornington
Crescent", to run in Mode 1 on a 64k Electron. This is a game based on
the London Underground, which was originally published in the Micro User.
I have at last managed to compress this enough to run on a 32k Electron
(still in MODE 1, apart from the instructions, which are deleted from
memory after they have been read). All of the station names and numerical
data are now stored directly in memory, and retrieved using a machine code
routine (instead of using BASIC array variables). The game is, however,
extremely sluggish, and passing through King's Cross could mean a very
long wait for your next move! The memory is also very tight, so if you
want to improve the program, you will probably have to shorten a message,
or remove an unnecessary routine somewhere.
Anyone who continued their Micro User subscription long enough to
see the change of name to "Acorn Computing" might have noticed that
"Pixel Mapper", a program published for the BBC Micro in October/November
1992 did not work on the Electron. This was a shame, as it was actually a
very clever program to distort pictures into virtually any shape you
wanted. I eventually found the problems, and will now give instructions to
make the program work:
(1) Load the program "Shaper", and change line 360 to:
360 IF INKEY-40 PROCsave
then re-save the program. This enables you to press 0 instead
of f0 to save your shape file.
(2) Load the program "PixMap", and add the following line:
385VDU23,1,0;0;0;0;
This prevents the flashing cursor from corrupting your
picture.
(3) Load the source code "X.PMSrc", and change line 120 to:
120 Srcl=&C36D:Scrh=&C36E
Run the program, and a new version of the file "mapcode" will
be saved.
(4) Run the program as described in the magazine.
If some members do not already have an original copy of the
program, and would like one, then I could send in a complete working
version for the disc. However, I am not sure whether the Copyright laws
would permit this (though some Copyright Electron User programs have been
published in EUG in the past).
Have any members come across a disassembler which is capable of
re-generating source code, in the form of a BASIC program, from machine
code? This would be very useful, as it can be difficult to insert commands
into a program using a conventional disassembler. I have considered
writing one myself, but memory constraints, and the problem of adding
labels into the program, made this rather complicated (though not
impossible - I have a complete flow-chart version). I would be interested
to hear from anyone who has found or tried to write such a program.
Matthew Ford
00000000 81 2e 2e 2e 2e 2e 2e 2e 2e 2e 2a 2e 2e 2e 2e 2e |..........*.....| 00000010 2e 2e 2a 2e 2e 2e 2e 2e 2e 2e 2a 2e 2e 2e 2e 2e |..*.......*.....| * 00000040 2e 2e 2a 2e 2e 2e 2e 2e 2e 2e 2a 2e 3c 0d 20 20 |..*.......*.<. | 00000050 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | * 00000070 20 20 20 20 20 20 20 20 20 20 20 20 20 20 4d 61 | Ma| 00000080 74 74 68 65 77 20 46 6f 72 64 0d 20 20 20 20 20 |tthew Ford. | 00000090 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | * 000000b0 20 20 20 20 20 20 20 20 20 20 20 32 37 74 68 20 | 27th | 000000c0 4e 6f 76 65 6d 62 65 72 20 31 39 39 34 0d 44 65 |November 1994.De| 000000d0 61 72 20 47 75 73 2c 0d 20 20 20 20 20 20 20 49 |ar Gus,. I| 000000e0 20 68 61 76 65 20 73 65 6e 74 20 69 6e 20 61 20 | have sent in a | 000000f0 6e 75 6d 62 65 72 20 6f 66 20 63 6f 6e 74 72 69 |number of contri| 00000100 62 75 74 69 6f 6e 73 20 66 6f 72 20 74 68 65 20 |butions for the | 00000110 64 69 73 63 2c 20 74 68 6f 75 67 68 20 74 68 65 |disc, though the| 00000120 72 65 0d 6d 61 79 20 62 65 20 74 6f 6f 20 6d 75 |re.may be too mu| 00000130 63 68 20 66 6f 72 1a 20 6f 6e 65 1a 20 69 73 73 |ch for. one. iss| 00000140 75 65 2e 20 54 68 65 20 6d 6f 73 74 20 69 6e 74 |ue. The most int| 00000150 65 72 65 73 74 69 6e 67 20 28 69 6e 20 6d 79 20 |eresting (in my | 00000160 6f 70 69 6e 69 6f 6e 29 20 69 73 20 61 0d 70 72 |opinion) is a.pr| 00000170 6f 67 72 61 6d 1a 20 74 6f 1a 20 74 75 72 6e 20 |ogram. to. turn | 00000180 70 69 63 74 75 72 65 73 20 69 6e 74 6f 20 61 70 |pictures into ap| 00000190 70 61 72 65 6e 74 6c 79 20 6d 65 61 6e 69 6e 67 |parently meaning| 000001a0 6c 65 73 73 1a 20 70 61 74 74 65 72 6e 73 1a 20 |less. patterns. | 000001b0 6f 66 1a 20 64 6f 74 73 0d 63 61 6c 6c 65 64 20 |of. dots.called | 000001c0 61 75 74 6f 73 74 65 72 65 6f 67 72 61 6d 73 2e |autostereograms.| 000001d0 20 49 1a 20 68 61 76 65 1a 20 61 6c 73 6f 1a 20 | I. have. also. | 000001e0 61 64 61 70 74 65 64 1a 20 74 68 65 1a 20 45 6c |adapted. the. El| 000001f0 65 63 74 6f 6e 20 55 73 65 72 27 73 20 42 61 6e |ecton User's Ban| 00000200 6e 65 72 0d 70 72 69 6e 74 69 6e 67 20 70 72 6f |ner.printing pro| 00000210 67 72 61 6d 20 28 4a 75 6e 65 20 31 39 38 39 29 |gram (June 1989)| 00000220 20 74 6f 20 70 72 69 6e 74 20 6c 61 72 67 65 20 | to print large | 00000230 6d 65 73 73 61 67 65 73 1a 20 6f 6e 1a 20 74 68 |messages. on. th| 00000240 65 1a 20 73 63 72 65 65 6e 2c 20 61 6e 64 0d 68 |e. screen, and.h| 00000250 61 76 65 1a 20 6d 61 64 65 1a 20 73 6f 6d 65 20 |ave. made. some | 00000260 69 6d 70 72 6f 76 65 6d 65 6e 74 73 20 74 6f 20 |improvements to | 00000270 74 68 65 20 44 69 61 67 72 61 6d 20 73 63 72 65 |the Diagram scre| 00000280 65 6e 20 64 75 6d 70 20 66 72 6f 6d 20 45 55 47 |en dump from EUG| 00000290 31 36 2e 20 54 68 65 73 65 0d 70 72 6f 67 72 61 |16. These.progra| 000002a0 6d 73 20 61 72 65 20 64 65 73 63 72 69 62 65 64 |ms are described| 000002b0 20 69 6e 20 73 65 70 65 72 61 74 65 20 61 72 74 | in seperate art| 000002c0 69 63 6c 65 73 0d 0d 20 20 20 20 20 20 20 49 6e |icles.. In| 000002d0 20 45 55 47 39 20 43 68 72 69 73 74 6f 70 68 65 | EUG9 Christophe| 000002e0 72 20 43 68 61 64 77 69 63 6b 20 73 65 6e 74 1a |r Chadwick sent.| 000002f0 20 69 6e 1a 20 61 1a 20 63 6f 6e 76 65 72 73 69 | in. a. conversi| 00000300 6f 6e 20 6f 66 20 22 4d 6f 72 6e 69 6e 67 74 6f |on of "Morningto| 00000310 6e 0d 43 72 65 73 63 65 6e 74 22 2c 20 74 6f 20 |n.Crescent", to | 00000320 72 75 6e 20 69 6e 20 4d 6f 64 65 20 31 20 6f 6e |run in Mode 1 on| 00000330 20 61 1a 20 36 34 6b 1a 20 45 6c 65 63 74 72 6f | a. 64k. Electro| 00000340 6e 2e 1a 20 54 68 69 73 20 69 73 20 61 20 67 61 |n.. This is a ga| 00000350 6d 65 20 62 61 73 65 64 20 6f 6e 0d 74 68 65 20 |me based on.the | 00000360 4c 6f 6e 64 6f 6e 20 55 6e 64 65 72 67 72 6f 75 |London Undergrou| 00000370 6e 64 2c 20 77 68 69 63 68 20 77 61 73 20 6f 72 |nd, which was or| 00000380 69 67 69 6e 61 6c 6c 79 20 70 75 62 6c 69 73 68 |iginally publish| 00000390 65 64 20 69 6e 20 74 68 65 20 4d 69 63 72 6f 20 |ed in the Micro | 000003a0 55 73 65 72 2e 0d 49 20 68 61 76 65 20 61 74 20 |User..I have at | 000003b0 6c 61 73 74 20 6d 61 6e 61 67 65 64 20 74 6f 20 |last managed to | 000003c0 63 6f 6d 70 72 65 73 73 20 74 68 69 73 20 65 6e |compress this en| 000003d0 6f 75 67 68 20 74 6f 20 72 75 6e 1a 20 6f 6e 1a |ough to run. on.| 000003e0 20 61 1a 20 33 32 6b 20 45 6c 65 63 74 72 6f 6e | a. 32k Electron| 000003f0 0d 28 73 74 69 6c 6c 1a 20 69 6e 1a 20 4d 4f 44 |.(still. in. MOD| 00000400 45 1a 20 31 2c 1a 20 61 70 61 72 74 1a 20 66 72 |E. 1,. apart. fr| 00000410 6f 6d 20 74 68 65 20 69 6e 73 74 72 75 63 74 69 |om the instructi| 00000420 6f 6e 73 2c 20 77 68 69 63 68 20 61 72 65 20 64 |ons, which are d| 00000430 65 6c 65 74 65 64 20 66 72 6f 6d 0d 6d 65 6d 6f |eleted from.memo| 00000440 72 79 20 61 66 74 65 72 20 74 68 65 79 20 68 61 |ry after they ha| 00000450 76 65 20 62 65 65 6e 20 72 65 61 64 29 2e 1a 20 |ve been read).. | 00000460 41 6c 6c 20 6f 66 20 74 68 65 20 73 74 61 74 69 |All of the stati| 00000470 6f 6e 20 6e 61 6d 65 73 20 61 6e 64 20 6e 75 6d |on names and num| 00000480 65 72 69 63 61 6c 0d 64 61 74 61 20 61 72 65 20 |erical.data are | 00000490 6e 6f 77 20 73 74 6f 72 65 64 20 64 69 72 65 63 |now stored direc| 000004a0 74 6c 79 20 69 6e 20 6d 65 6d 6f 72 79 2c 20 61 |tly in memory, a| 000004b0 6e 64 20 72 65 74 72 69 65 76 65 64 20 75 73 69 |nd retrieved usi| 000004c0 6e 67 20 61 20 6d 61 63 68 69 6e 65 20 63 6f 64 |ng a machine cod| 000004d0 65 0d 72 6f 75 74 69 6e 65 20 28 69 6e 73 74 65 |e.routine (inste| 000004e0 61 64 20 6f 66 20 75 73 69 6e 67 20 42 41 53 49 |ad of using BASI| 000004f0 43 20 61 72 72 61 79 20 76 61 72 69 61 62 6c 65 |C array variable| 00000500 73 29 2e 1a 20 54 68 65 1a 20 67 61 6d 65 1a 20 |s).. The. game. | 00000510 69 73 2c 20 68 6f 77 65 76 65 72 2c 0d 65 78 74 |is, however,.ext| 00000520 72 65 6d 65 6c 79 1a 20 73 6c 75 67 67 69 73 68 |remely. sluggish| 00000530 2c 1a 20 61 6e 64 1a 20 70 61 73 73 69 6e 67 1a |,. and. passing.| 00000540 20 74 68 72 6f 75 67 68 20 4b 69 6e 67 27 73 20 | through King's | 00000550 43 72 6f 73 73 20 63 6f 75 6c 64 20 6d 65 61 6e |Cross could mean| 00000560 20 61 20 76 65 72 79 0d 6c 6f 6e 67 20 77 61 69 | a very.long wai| 00000570 74 20 66 6f 72 20 79 6f 75 72 20 6e 65 78 74 1a |t for your next.| 00000580 20 6d 6f 76 65 21 20 54 68 65 1a 20 6d 65 6d 6f | move! The. memo| 00000590 72 79 1a 20 69 73 20 61 6c 73 6f 20 76 65 72 79 |ry. is also very| 000005a0 20 74 69 67 68 74 2c 20 73 6f 20 69 66 20 79 6f | tight, so if yo| 000005b0 75 0d 77 61 6e 74 20 74 6f 20 69 6d 70 72 6f 76 |u.want to improv| 000005c0 65 20 74 68 65 20 70 72 6f 67 72 61 6d 2c 20 79 |e the program, y| 000005d0 6f 75 20 77 69 6c 6c 20 70 72 6f 62 61 62 6c 79 |ou will probably| 000005e0 20 68 61 76 65 1a 20 74 6f 20 73 68 6f 72 74 65 | have. to shorte| 000005f0 6e 20 61 20 6d 65 73 73 61 67 65 2c 0d 6f 72 20 |n a message,.or | 00000600 72 65 6d 6f 76 65 20 61 6e 20 75 6e 6e 65 63 65 |remove an unnece| 00000610 73 73 61 72 79 20 72 6f 75 74 69 6e 65 20 73 6f |ssary routine so| 00000620 6d 65 77 68 65 72 65 2e 0d 0d 20 20 20 20 20 20 |mewhere... | 00000630 20 41 6e 79 6f 6e 65 20 77 68 6f 20 63 6f 6e 74 | Anyone who cont| 00000640 69 6e 75 65 64 20 74 68 65 69 72 20 4d 69 63 72 |inued their Micr| 00000650 6f 1a 20 55 73 65 72 1a 20 73 75 62 73 63 72 69 |o. User. subscri| 00000660 70 74 69 6f 6e 20 6c 6f 6e 67 20 65 6e 6f 75 67 |ption long enoug| 00000670 68 20 74 6f 0d 73 65 65 1a 20 74 68 65 1a 20 63 |h to.see. the. c| 00000680 68 61 6e 67 65 20 6f 66 20 6e 61 6d 65 20 74 6f |hange of name to| 00000690 20 22 41 63 6f 72 6e 1a 20 43 6f 6d 70 75 74 69 | "Acorn. Computi| 000006a0 6e 67 22 1a 20 6d 69 67 68 74 1a 20 68 61 76 65 |ng". might. have| 000006b0 1a 20 6e 6f 74 69 63 65 64 1a 20 74 68 61 74 20 |. noticed. that | 000006c0 0d 22 50 69 78 65 6c 20 4d 61 70 70 65 72 22 2c |."Pixel Mapper",| 000006d0 20 61 1a 20 70 72 6f 67 72 61 6d 20 70 75 62 6c | a. program publ| 000006e0 69 73 68 65 64 20 66 6f 72 20 74 68 65 20 42 42 |ished for the BB| 000006f0 43 20 4d 69 63 72 6f 20 69 6e 20 4f 63 74 6f 62 |C Micro in Octob| 00000700 65 72 2f 4e 6f 76 65 6d 62 65 72 0d 31 39 39 32 |er/November.1992| 00000710 20 64 69 64 20 6e 6f 74 20 77 6f 72 6b 1a 20 6f | did not work. o| 00000720 6e 20 74 68 65 20 45 6c 65 63 74 72 6f 6e 2e 20 |n the Electron. | 00000730 54 68 69 73 20 77 61 73 20 61 20 73 68 61 6d 65 |This was a shame| 00000740 2c 20 61 73 20 69 74 20 77 61 73 20 61 63 74 75 |, as it was actu| 00000750 61 6c 6c 79 20 61 0d 76 65 72 79 20 63 6c 65 76 |ally a.very clev| 00000760 65 72 20 70 72 6f 67 72 61 6d 20 74 6f 20 64 69 |er program to di| 00000770 73 74 6f 72 74 1a 20 70 69 63 74 75 72 65 73 1a |stort. pictures.| 00000780 20 69 6e 74 6f 1a 20 76 69 72 74 75 61 6c 6c 79 | into. virtually| 00000790 1a 20 61 6e 79 1a 20 73 68 61 70 65 1a 20 79 6f |. any. shape. yo| 000007a0 75 0d 77 61 6e 74 65 64 2e 20 49 20 65 76 65 6e |u.wanted. I even| 000007b0 74 75 61 6c 6c 79 20 66 6f 75 6e 64 20 74 68 65 |tually found the| 000007c0 20 70 72 6f 62 6c 65 6d 73 2c 20 61 6e 64 20 77 | problems, and w| 000007d0 69 6c 6c 20 6e 6f 77 20 67 69 76 65 20 69 6e 73 |ill now give ins| 000007e0 74 72 75 63 74 69 6f 6e 73 20 74 6f 0d 6d 61 6b |tructions to.mak| 000007f0 65 20 74 68 65 20 70 72 6f 67 72 61 6d 20 77 6f |e the program wo| 00000800 72 6b 3a 0d 20 20 20 20 20 20 20 20 20 28 31 29 |rk:. (1)| 00000810 20 4c 6f 61 64 20 74 68 65 20 70 72 6f 67 72 61 | Load the progra| 00000820 6d 20 22 53 68 61 70 65 72 22 2c 20 61 6e 64 20 |m "Shaper", and | 00000830 63 68 61 6e 67 65 20 6c 69 6e 65 20 33 36 30 20 |change line 360 | 00000840 74 6f 3a 0d 20 20 20 20 20 20 20 20 20 20 20 20 |to:. | 00000850 20 20 33 36 30 20 49 46 20 49 4e 4b 45 59 2d 34 | 360 IF INKEY-4| 00000860 30 20 50 52 4f 43 73 61 76 65 0d 20 20 20 20 20 |0 PROCsave. | 00000870 20 20 20 20 20 20 20 20 74 68 65 6e 20 72 65 2d | then re-| 00000880 73 61 76 65 20 74 68 65 20 70 72 6f 67 72 61 6d |save the program| 00000890 2e 20 54 68 69 73 20 65 6e 61 62 6c 65 73 20 79 |. This enables y| 000008a0 6f 75 20 74 6f 20 70 72 65 73 73 20 30 20 69 6e |ou to press 0 in| 000008b0 73 74 65 61 64 0d 20 20 20 20 20 20 20 20 20 20 |stead. | 000008c0 20 20 20 6f 66 20 66 30 20 74 6f 20 73 61 76 65 | of f0 to save| 000008d0 20 79 6f 75 72 20 73 68 61 70 65 20 66 69 6c 65 | your shape file| 000008e0 2e 0d 20 20 20 20 20 20 20 20 20 28 32 29 20 4c |.. (2) L| 000008f0 6f 61 64 20 74 68 65 20 70 72 6f 67 72 61 6d 20 |oad the program | 00000900 22 50 69 78 4d 61 70 22 2c 20 61 6e 64 20 61 64 |"PixMap", and ad| 00000910 64 20 74 68 65 20 66 6f 6c 6c 6f 77 69 6e 67 20 |d the following | 00000920 6c 69 6e 65 3a 20 20 0d 20 20 20 20 20 20 20 20 |line: . | 00000930 20 20 20 20 20 20 33 38 35 56 44 55 32 33 2c 31 | 385VDU23,1| 00000940 2c 30 3b 30 3b 30 3b 30 3b 0d 20 20 20 20 20 20 |,0;0;0;0;. | 00000950 20 20 20 20 20 20 20 54 68 69 73 1a 20 70 72 65 | This. pre| 00000960 76 65 6e 74 73 1a 20 74 68 65 1a 20 66 6c 61 73 |vents. the. flas| 00000970 68 69 6e 67 1a 20 63 75 72 73 6f 72 1a 20 66 72 |hing. cursor. fr| 00000980 6f 6d 1a 20 63 6f 72 72 75 70 74 69 6e 67 1a 20 |om. corrupting. | 00000990 79 6f 75 72 0d 20 20 20 20 20 20 20 20 20 20 20 |your. | 000009a0 20 20 70 69 63 74 75 72 65 2e 0d 20 20 20 20 20 | picture.. | 000009b0 20 20 20 20 28 33 29 20 4c 6f 61 64 20 74 68 65 | (3) Load the| 000009c0 20 73 6f 75 72 63 65 20 63 6f 64 65 20 22 58 2e | source code "X.| 000009d0 50 4d 53 72 63 22 2c 20 61 6e 64 20 63 68 61 6e |PMSrc", and chan| 000009e0 67 65 20 6c 69 6e 65 20 31 32 30 20 74 6f 3a 0d |ge line 120 to:.| 000009f0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 31 32 | 12| 00000a00 30 20 53 72 63 6c 3d 26 43 33 36 44 3a 53 63 72 |0 Srcl=&C36D:Scr| 00000a10 68 3d 26 43 33 36 45 0d 20 20 20 20 20 20 20 20 |h=&C36E. | 00000a20 20 20 20 20 20 52 75 6e 20 74 68 65 20 70 72 6f | Run the pro| 00000a30 67 72 61 6d 2c 20 61 6e 64 20 61 20 6e 65 77 20 |gram, and a new | 00000a40 76 65 72 73 69 6f 6e 20 6f 66 20 74 68 65 20 66 |version of the f| 00000a50 69 6c 65 20 22 6d 61 70 63 6f 64 65 22 20 77 69 |ile "mapcode" wi| 00000a60 6c 6c 0d 20 20 20 20 20 20 20 20 20 20 20 20 20 |ll. | 00000a70 62 65 20 73 61 76 65 64 2e 0d 20 20 20 20 20 20 |be saved.. | 00000a80 20 20 20 28 34 29 20 52 75 6e 20 74 68 65 20 70 | (4) Run the p| 00000a90 72 6f 67 72 61 6d 20 61 73 20 64 65 73 63 72 69 |rogram as descri| 00000aa0 62 65 64 20 69 6e 20 74 68 65 20 6d 61 67 61 7a |bed in the magaz| 00000ab0 69 6e 65 2e 0d 20 20 20 20 20 20 20 49 66 1a 20 |ine.. If. | 00000ac0 73 6f 6d 65 20 6d 65 6d 62 65 72 73 20 64 6f 20 |some members do | 00000ad0 6e 6f 74 1a 20 61 6c 72 65 61 64 79 1a 20 68 61 |not. already. ha| 00000ae0 76 65 1a 20 61 6e 1a 20 6f 72 69 67 69 6e 61 6c |ve. an. original| 00000af0 1a 20 63 6f 70 79 1a 20 6f 66 1a 20 74 68 65 0d |. copy. of. the.| 00000b00 70 72 6f 67 72 61 6d 2c 20 61 6e 64 1a 20 77 6f |program, and. wo| 00000b10 75 6c 64 1a 20 6c 69 6b 65 1a 20 6f 6e 65 2c 1a |uld. like. one,.| 00000b20 20 74 68 65 6e 1a 20 49 1a 20 63 6f 75 6c 64 20 | then. I. could | 00000b30 73 65 6e 64 20 69 6e 20 61 20 63 6f 6d 70 6c 65 |send in a comple| 00000b40 74 65 20 77 6f 72 6b 69 6e 67 0d 76 65 72 73 69 |te working.versi| 00000b50 6f 6e 20 66 6f 72 20 74 68 65 20 64 69 73 63 2e |on for the disc.| 00000b60 20 48 6f 77 65 76 65 72 2c 20 49 20 61 6d 20 6e | However, I am n| 00000b70 6f 74 1a 20 73 75 72 65 1a 20 77 68 65 74 68 65 |ot. sure. whethe| 00000b80 72 1a 20 74 68 65 20 43 6f 70 79 72 69 67 68 74 |r. the Copyright| 00000b90 20 6c 61 77 73 0d 77 6f 75 6c 64 1a 20 70 65 72 | laws.would. per| 00000ba0 6d 69 74 20 74 68 69 73 20 28 74 68 6f 75 67 68 |mit this (though| 00000bb0 20 73 6f 6d 65 20 43 6f 70 79 72 69 67 68 74 20 | some Copyright | 00000bc0 45 6c 65 63 74 72 6f 6e 20 55 73 65 72 20 70 72 |Electron User pr| 00000bd0 6f 67 72 61 6d 73 20 68 61 76 65 20 62 65 65 6e |ograms have been| 00000be0 0d 70 75 62 6c 69 73 68 65 64 20 69 6e 20 45 55 |.published in EU| 00000bf0 47 20 69 6e 20 74 68 65 20 70 61 73 74 29 2e 20 |G in the past). | 00000c00 20 20 20 20 20 20 20 20 0d 0d 20 20 20 20 20 20 | .. | 00000c10 20 48 61 76 65 20 61 6e 79 20 6d 65 6d 62 65 72 | Have any member| 00000c20 73 20 63 6f 6d 65 20 61 63 72 6f 73 73 1a 20 61 |s come across. a| 00000c30 1a 20 64 69 73 61 73 73 65 6d 62 6c 65 72 1a 20 |. disassembler. | 00000c40 77 68 69 63 68 1a 20 69 73 20 63 61 70 61 62 6c |which. is capabl| 00000c50 65 20 6f 66 0d 72 65 2d 67 65 6e 65 72 61 74 69 |e of.re-generati| 00000c60 6e 67 20 73 6f 75 72 63 65 20 63 6f 64 65 2c 20 |ng source code, | 00000c70 69 6e 20 74 68 65 20 66 6f 72 6d 20 6f 66 20 61 |in the form of a| 00000c80 20 42 41 53 49 43 1a 20 70 72 6f 67 72 61 6d 2c | BASIC. program,| 00000c90 1a 20 66 72 6f 6d 1a 20 6d 61 63 68 69 6e 65 0d |. from. machine.| 00000ca0 63 6f 64 65 3f 20 54 68 69 73 20 77 6f 75 6c 64 |code? This would| 00000cb0 20 62 65 20 76 65 72 79 20 75 73 65 66 75 6c 2c | be very useful,| 00000cc0 20 61 73 20 69 74 20 63 61 6e 20 62 65 20 64 69 | as it can be di| 00000cd0 66 66 69 63 75 6c 74 20 74 6f 20 69 6e 73 65 72 |fficult to inser| 00000ce0 74 20 63 6f 6d 6d 61 6e 64 73 0d 69 6e 74 6f 1a |t commands.into.| 00000cf0 20 61 1a 20 70 72 6f 67 72 61 6d 1a 20 75 73 69 | a. program. usi| 00000d00 6e 67 1a 20 61 1a 20 63 6f 6e 76 65 6e 74 69 6f |ng. a. conventio| 00000d10 6e 61 6c 1a 20 64 69 73 61 73 73 65 6d 62 6c 65 |nal. disassemble| 00000d20 72 2e 1a 20 49 20 68 61 76 65 20 63 6f 6e 73 69 |r.. I have consi| 00000d30 64 65 72 65 64 0d 77 72 69 74 69 6e 67 1a 20 6f |dered.writing. o| 00000d40 6e 65 1a 20 6d 79 73 65 6c 66 2c 20 62 75 74 20 |ne. myself, but | 00000d50 6d 65 6d 6f 72 79 20 63 6f 6e 73 74 72 61 69 6e |memory constrain| 00000d60 74 73 2c 20 61 6e 64 20 74 68 65 1a 20 70 72 6f |ts, and the. pro| 00000d70 62 6c 65 6d 1a 20 6f 66 1a 20 61 64 64 69 6e 67 |blem. of. adding| 00000d80 0d 6c 61 62 65 6c 73 1a 20 69 6e 74 6f 1a 20 74 |.labels. into. t| 00000d90 68 65 1a 20 70 72 6f 67 72 61 6d 2c 1a 20 6d 61 |he. program,. ma| 00000da0 64 65 1a 20 74 68 69 73 1a 20 72 61 74 68 65 72 |de. this. rather| 00000db0 1a 20 63 6f 6d 70 6c 69 63 61 74 65 64 1a 20 28 |. complicated. (| 00000dc0 74 68 6f 75 67 68 1a 20 6e 6f 74 0d 69 6d 70 6f |though. not.impo| 00000dd0 73 73 69 62 6c 65 20 2d 20 49 1a 20 68 61 76 65 |ssible - I. have| 00000de0 20 61 20 63 6f 6d 70 6c 65 74 65 20 66 6c 6f 77 | a complete flow| 00000df0 2d 63 68 61 72 74 20 76 65 72 73 69 6f 6e 29 2e |-chart version).| 00000e00 20 49 20 77 6f 75 6c 64 20 62 65 20 69 6e 74 65 | I would be inte| 00000e10 72 65 73 74 65 64 0d 74 6f 20 68 65 61 72 20 66 |rested.to hear f| 00000e20 72 6f 6d 20 61 6e 79 6f 6e 65 20 77 68 6f 20 68 |rom anyone who h| 00000e30 61 73 20 66 6f 75 6e 64 20 6f 72 20 74 72 69 65 |as found or trie| 00000e40 64 20 74 6f 20 77 72 69 74 65 20 73 75 63 68 20 |d to write such | 00000e50 61 20 70 72 6f 67 72 61 6d 2e 0d 0d 20 20 20 20 |a program... | 00000e60 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | * 00000e80 20 20 20 20 20 20 20 20 20 20 20 20 4d 61 74 74 | Matt| 00000e90 68 65 77 20 46 6f 72 64 0d |hew Ford.| 00000e99
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