Home » Archimedes archive » Acorn Computing » 1994 04 subscription disc.adf » 9404s » PD/BACKDROP/A
PD/BACKDROP/A
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 » Archimedes archive » Acorn Computing » 1994 04 subscription disc.adf » 9404s |
| Filename: | PD/BACKDROP/A |
| Read OK: | ✔ |
| File size: | 0930 bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
Coming Soon! P - a versatile language development system ------------------------------------------- Based on a subset of Pascal, P is a compiled language ideal for teaching compiler theory and programming as well as developing small to medium sized programs. CipherEngine - secure file encryption ------------------------------------- A module with 20 SWIs for secure EOR file encryption within your own programs complete with 2 full scale demos that are useful programs in their own right. XAsm - extended syntax assembler -------------------------------- A powerful assembler that allows multi-file assembly, constants, libraries, macros, linking to BBC basic, source file generation, floating point assembly, error throwback (not DDE) modules / applications, and an extended syntax, among other things. Also, later: PDL - A Program Development Language ------------------------------------ A high level language that can be compiled to Pascal, C, or (perhaps) BASIC. The language is problem-orientated and implementation-independant, so you can stop worrying about the "how" and concentrate on the "what"!! BBV - BBC Basic V to machine code --------------------------------- Powerful program to disguise a BASIC program as machine code to prevent other people borrowing your ideas. Proof against most detection utilities as is actually disguised as ARM code. Finally: Acorn User's Forum ------------------ I'm thinking of starting a disc-based magazine and club called Acorn User's Forum for the exchange of ideas, programs, etc., and am at the moment "testing the water". If anyone is interested, would like to write an article or have a program they want published, write to me and if interest is sufficiently high, the first issue may yet be rolling of the press! Sorry, but you may not get a reply to this unless the project comes off. Thanks. -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- PLEASE! Don't seperate this document from the program it came with! -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- History: (Please add your name and date to the list below:) David J Seery 23 August 1993 -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- David J Seery 15 Farm Walk Bents Farm Estate Littleborough Lancashire OL15 8LJ
00000000 43 6f 6d 69 6e 67 20 53 6f 6f 6e 21 0a 0a 50 20 |Coming Soon!..P | 00000010 2d 20 61 20 76 65 72 73 61 74 69 6c 65 20 6c 61 |- a versatile la| 00000020 6e 67 75 61 67 65 20 64 65 76 65 6c 6f 70 6d 65 |nguage developme| 00000030 6e 74 20 73 79 73 74 65 6d 0a 2d 2d 2d 2d 2d 2d |nt system.------| 00000040 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------| * 00000060 2d 2d 2d 2d 2d 0a 42 61 73 65 64 20 6f 6e 20 61 |-----.Based on a| 00000070 20 73 75 62 73 65 74 20 6f 66 20 50 61 73 63 61 | subset of Pasca| 00000080 6c 2c 20 50 20 69 73 20 61 20 63 6f 6d 70 69 6c |l, P is a compil| 00000090 65 64 20 6c 61 6e 67 75 61 67 65 20 69 64 65 61 |ed language idea| 000000a0 6c 20 66 6f 72 20 74 65 61 63 68 69 6e 67 0a 63 |l for teaching.c| 000000b0 6f 6d 70 69 6c 65 72 20 74 68 65 6f 72 79 20 61 |ompiler theory a| 000000c0 6e 64 20 70 72 6f 67 72 61 6d 6d 69 6e 67 20 61 |nd programming a| 000000d0 73 20 77 65 6c 6c 20 61 73 20 64 65 76 65 6c 6f |s well as develo| 000000e0 70 69 6e 67 20 73 6d 61 6c 6c 20 74 6f 20 6d 65 |ping small to me| 000000f0 64 69 75 6d 20 73 69 7a 65 64 0a 70 72 6f 67 72 |dium sized.progr| 00000100 61 6d 73 2e 0a 0a 43 69 70 68 65 72 45 6e 67 69 |ams...CipherEngi| 00000110 6e 65 20 2d 20 73 65 63 75 72 65 20 66 69 6c 65 |ne - secure file| 00000120 20 65 6e 63 72 79 70 74 69 6f 6e 0a 2d 2d 2d 2d | encryption.----| 00000130 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------| * 00000150 2d 0a 41 20 6d 6f 64 75 6c 65 20 77 69 74 68 20 |-.A module with | 00000160 32 30 20 53 57 49 73 20 66 6f 72 20 73 65 63 75 |20 SWIs for secu| 00000170 72 65 20 45 4f 52 20 66 69 6c 65 20 65 6e 63 72 |re EOR file encr| 00000180 79 70 74 69 6f 6e 20 77 69 74 68 69 6e 20 79 6f |yption within yo| 00000190 75 72 20 6f 77 6e 20 70 72 6f 67 72 61 6d 73 0a |ur own programs.| 000001a0 63 6f 6d 70 6c 65 74 65 20 77 69 74 68 20 32 20 |complete with 2 | 000001b0 66 75 6c 6c 20 73 63 61 6c 65 20 64 65 6d 6f 73 |full scale demos| 000001c0 20 74 68 61 74 20 61 72 65 20 75 73 65 66 75 6c | that are useful| 000001d0 20 70 72 6f 67 72 61 6d 73 20 69 6e 20 74 68 65 | programs in the| 000001e0 69 72 20 6f 77 6e 0a 72 69 67 68 74 2e 0a 0a 58 |ir own.right...X| 000001f0 41 73 6d 20 2d 20 65 78 74 65 6e 64 65 64 20 73 |Asm - extended s| 00000200 79 6e 74 61 78 20 61 73 73 65 6d 62 6c 65 72 0a |yntax assembler.| 00000210 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------| * 00000230 0a 41 20 70 6f 77 65 72 66 75 6c 20 61 73 73 65 |.A powerful asse| 00000240 6d 62 6c 65 72 20 74 68 61 74 20 61 6c 6c 6f 77 |mbler that allow| 00000250 73 20 6d 75 6c 74 69 2d 66 69 6c 65 20 61 73 73 |s multi-file ass| 00000260 65 6d 62 6c 79 2c 20 63 6f 6e 73 74 61 6e 74 73 |embly, constants| 00000270 2c 20 6c 69 62 72 61 72 69 65 73 2c 0a 6d 61 63 |, libraries,.mac| 00000280 72 6f 73 2c 20 6c 69 6e 6b 69 6e 67 20 74 6f 20 |ros, linking to | 00000290 42 42 43 20 62 61 73 69 63 2c 20 73 6f 75 72 63 |BBC basic, sourc| 000002a0 65 20 66 69 6c 65 20 67 65 6e 65 72 61 74 69 6f |e file generatio| 000002b0 6e 2c 20 66 6c 6f 61 74 69 6e 67 20 70 6f 69 6e |n, floating poin| 000002c0 74 0a 61 73 73 65 6d 62 6c 79 2c 20 65 72 72 6f |t.assembly, erro| 000002d0 72 20 74 68 72 6f 77 62 61 63 6b 20 28 6e 6f 74 |r throwback (not| 000002e0 20 44 44 45 29 20 6d 6f 64 75 6c 65 73 20 2f 20 | DDE) modules / | 000002f0 61 70 70 6c 69 63 61 74 69 6f 6e 73 2c 20 61 6e |applications, an| 00000300 64 20 61 6e 0a 65 78 74 65 6e 64 65 64 20 73 79 |d an.extended sy| 00000310 6e 74 61 78 2c 20 61 6d 6f 6e 67 20 6f 74 68 65 |ntax, among othe| 00000320 72 20 74 68 69 6e 67 73 2e 0a 0a 41 6c 73 6f 2c |r things...Also,| 00000330 20 6c 61 74 65 72 3a 0a 0a 50 44 4c 20 2d 20 41 | later:..PDL - A| 00000340 20 50 72 6f 67 72 61 6d 20 44 65 76 65 6c 6f 70 | Program Develop| 00000350 6d 65 6e 74 20 4c 61 6e 67 75 61 67 65 0a 2d 2d |ment Language.--| 00000360 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------| * 00000380 2d 2d 0a 41 20 68 69 67 68 20 6c 65 76 65 6c 20 |--.A high level | 00000390 6c 61 6e 67 75 61 67 65 20 74 68 61 74 20 63 61 |language that ca| 000003a0 6e 20 62 65 20 63 6f 6d 70 69 6c 65 64 20 74 6f |n be compiled to| 000003b0 20 50 61 73 63 61 6c 2c 20 43 2c 20 6f 72 20 28 | Pascal, C, or (| 000003c0 70 65 72 68 61 70 73 29 20 42 41 53 49 43 2e 0a |perhaps) BASIC..| 000003d0 54 68 65 20 6c 61 6e 67 75 61 67 65 20 69 73 20 |The language is | 000003e0 70 72 6f 62 6c 65 6d 2d 6f 72 69 65 6e 74 61 74 |problem-orientat| 000003f0 65 64 20 61 6e 64 20 69 6d 70 6c 65 6d 65 6e 74 |ed and implement| 00000400 61 74 69 6f 6e 2d 69 6e 64 65 70 65 6e 64 61 6e |ation-independan| 00000410 74 2c 20 73 6f 20 79 6f 75 0a 63 61 6e 20 73 74 |t, so you.can st| 00000420 6f 70 20 77 6f 72 72 79 69 6e 67 20 61 62 6f 75 |op worrying abou| 00000430 74 20 74 68 65 20 22 68 6f 77 22 20 61 6e 64 20 |t the "how" and | 00000440 63 6f 6e 63 65 6e 74 72 61 74 65 20 6f 6e 20 74 |concentrate on t| 00000450 68 65 20 22 77 68 61 74 22 21 21 0a 0a 42 42 56 |he "what"!!..BBV| 00000460 20 2d 20 42 42 43 20 42 61 73 69 63 20 56 20 74 | - BBC Basic V t| 00000470 6f 20 6d 61 63 68 69 6e 65 20 63 6f 64 65 0a 2d |o machine code.-| 00000480 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------| * 000004a0 0a 50 6f 77 65 72 66 75 6c 20 70 72 6f 67 72 61 |.Powerful progra| 000004b0 6d 20 74 6f 20 64 69 73 67 75 69 73 65 20 61 20 |m to disguise a | 000004c0 42 41 53 49 43 20 70 72 6f 67 72 61 6d 20 61 73 |BASIC program as| 000004d0 20 6d 61 63 68 69 6e 65 20 63 6f 64 65 20 74 6f | machine code to| 000004e0 20 70 72 65 76 65 6e 74 20 6f 74 68 65 72 0a 70 | prevent other.p| 000004f0 65 6f 70 6c 65 20 62 6f 72 72 6f 77 69 6e 67 20 |eople borrowing | 00000500 79 6f 75 72 20 69 64 65 61 73 2e 20 20 50 72 6f |your ideas. Pro| 00000510 6f 66 20 61 67 61 69 6e 73 74 20 6d 6f 73 74 20 |of against most | 00000520 64 65 74 65 63 74 69 6f 6e 20 75 74 69 6c 69 74 |detection utilit| 00000530 69 65 73 20 61 73 0a 69 73 20 61 63 74 75 61 6c |ies as.is actual| 00000540 6c 79 20 64 69 73 67 75 69 73 65 64 20 61 73 20 |ly disguised as | 00000550 41 52 4d 20 63 6f 64 65 2e 0a 0a 0a 46 69 6e 61 |ARM code....Fina| 00000560 6c 6c 79 3a 0a 0a 41 63 6f 72 6e 20 55 73 65 72 |lly:..Acorn User| 00000570 27 73 20 46 6f 72 75 6d 0a 2d 2d 2d 2d 2d 2d 2d |'s Forum.-------| 00000580 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 0a 49 27 6d 20 |-----------.I'm | 00000590 74 68 69 6e 6b 69 6e 67 20 6f 66 20 73 74 61 72 |thinking of star| 000005a0 74 69 6e 67 20 61 20 64 69 73 63 2d 62 61 73 65 |ting a disc-base| 000005b0 64 20 6d 61 67 61 7a 69 6e 65 20 61 6e 64 20 63 |d magazine and c| 000005c0 6c 75 62 20 63 61 6c 6c 65 64 20 41 63 6f 72 6e |lub called Acorn| 000005d0 20 55 73 65 72 27 73 0a 46 6f 72 75 6d 20 66 6f | User's.Forum fo| 000005e0 72 20 74 68 65 20 65 78 63 68 61 6e 67 65 20 6f |r the exchange o| 000005f0 66 20 69 64 65 61 73 2c 20 70 72 6f 67 72 61 6d |f ideas, program| 00000600 73 2c 20 65 74 63 2e 2c 20 61 6e 64 20 61 6d 20 |s, etc., and am | 00000610 61 74 20 74 68 65 20 6d 6f 6d 65 6e 74 0a 22 74 |at the moment."t| 00000620 65 73 74 69 6e 67 20 74 68 65 20 77 61 74 65 72 |esting the water| 00000630 22 2e 20 20 49 66 20 61 6e 79 6f 6e 65 20 69 73 |". If anyone is| 00000640 20 69 6e 74 65 72 65 73 74 65 64 2c 20 77 6f 75 | interested, wou| 00000650 6c 64 20 6c 69 6b 65 20 74 6f 20 77 72 69 74 65 |ld like to write| 00000660 20 61 6e 20 61 72 74 69 63 6c 65 0a 6f 72 20 68 | an article.or h| 00000670 61 76 65 20 61 20 70 72 6f 67 72 61 6d 20 74 68 |ave a program th| 00000680 65 79 20 77 61 6e 74 20 70 75 62 6c 69 73 68 65 |ey want publishe| 00000690 64 2c 20 77 72 69 74 65 20 74 6f 20 6d 65 20 61 |d, write to me a| 000006a0 6e 64 20 69 66 20 69 6e 74 65 72 65 73 74 20 69 |nd if interest i| 000006b0 73 0a 73 75 66 66 69 63 69 65 6e 74 6c 79 20 68 |s.sufficiently h| 000006c0 69 67 68 2c 20 74 68 65 20 66 69 72 73 74 20 69 |igh, the first i| 000006d0 73 73 75 65 20 6d 61 79 20 79 65 74 20 62 65 20 |ssue may yet be | 000006e0 72 6f 6c 6c 69 6e 67 20 6f 66 20 74 68 65 20 70 |rolling of the p| 000006f0 72 65 73 73 21 0a 0a 53 6f 72 72 79 2c 20 62 75 |ress!..Sorry, bu| 00000700 74 20 79 6f 75 20 6d 61 79 20 6e 6f 74 20 67 65 |t you may not ge| 00000710 74 20 61 20 72 65 70 6c 79 20 74 6f 20 74 68 69 |t a reply to thi| 00000720 73 20 75 6e 6c 65 73 73 20 74 68 65 20 70 72 6f |s unless the pro| 00000730 6a 65 63 74 20 63 6f 6d 65 73 20 6f 66 66 2e 0a |ject comes off..| 00000740 0a 54 68 61 6e 6b 73 2e 0a 0a 2d 2b 2d 2b 2d 2b |.Thanks...-+-+-+| 00000750 2d 2b 2d 2b 2d 2b 2d 2b 2d 2b 2d 2b 2d 2b 2d 2b |-+-+-+-+-+-+-+-+| * 00000790 2d 2b 2d 2b 2d 2b 2d 0a 0a 50 4c 45 41 53 45 21 |-+-+-+-..PLEASE!| 000007a0 0a 0a 44 6f 6e 27 74 20 73 65 70 65 72 61 74 65 |..Don't seperate| 000007b0 20 74 68 69 73 20 64 6f 63 75 6d 65 6e 74 20 66 | this document f| 000007c0 72 6f 6d 20 74 68 65 20 70 72 6f 67 72 61 6d 20 |rom the program | 000007d0 69 74 20 63 61 6d 65 20 77 69 74 68 21 0a 0a 2d |it came with!..-| 000007e0 2b 2d 2b 2d 2b 2d 2b 2d 2b 2d 2b 2d 2b 2d 2b 2d |+-+-+-+-+-+-+-+-| * 00000820 2b 2d 2b 2d 2b 2d 2b 2d 2b 2d 2b 2d 0a 0a 48 69 |+-+-+-+-+-+-..Hi| 00000830 73 74 6f 72 79 3a 0a 0a 28 50 6c 65 61 73 65 20 |story:..(Please | 00000840 61 64 64 20 79 6f 75 72 20 6e 61 6d 65 20 61 6e |add your name an| 00000850 64 20 64 61 74 65 20 74 6f 20 74 68 65 20 6c 69 |d date to the li| 00000860 73 74 20 62 65 6c 6f 77 3a 29 0a 0a 44 61 76 69 |st below:)..Davi| 00000870 64 20 4a 20 53 65 65 72 79 20 20 20 20 20 20 20 |d J Seery | 00000880 20 20 20 32 33 20 41 75 67 75 73 74 20 31 39 39 | 23 August 199| 00000890 33 0a 0a 2d 2b 2d 2b 2d 2b 2d 2b 2d 2b 2d 2b 2d |3..-+-+-+-+-+-+-| 000008a0 2b 2d 2b 2d 2b 2d 2b 2d 2b 2d 2b 2d 2b 2d 2b 2d |+-+-+-+-+-+-+-+-| * 000008e0 0a 0a 44 61 76 69 64 20 4a 20 53 65 65 72 79 0a |..David J Seery.| 000008f0 31 35 20 46 61 72 6d 20 57 61 6c 6b 0a 42 65 6e |15 Farm Walk.Ben| 00000900 74 73 20 46 61 72 6d 20 45 73 74 61 74 65 0a 4c |ts Farm Estate.L| 00000910 69 74 74 6c 65 62 6f 72 6f 75 67 68 0a 4c 61 6e |ittleborough.Lan| 00000920 63 61 73 68 69 72 65 0a 4f 4c 31 35 20 38 4c 4a |cashire.OL15 8LJ| 00000930
.