TV Noise by Les Sucres en Morceaux [web]
screenshot added by Supersly on 2010-11-22 08:36:25
platform :
type :
release date : november 2010
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popularity : 58%
  • 0.35
alltime top: #9150
added on the 2010-11-22 08:36:25 by Supersly Supersly

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rulez added on the 2010-11-22 08:52:48 by Optimus Optimus
rulez added on the 2010-11-22 08:57:05 by ɧ4ɾɗվ. ɧ4ɾɗվ.
Yeah baby.
too late noise :D
rulez added on the 2010-11-22 09:48:18 by panic panic
Well done!
rulez added on the 2010-11-22 10:57:15 by MuffinHop MuffinHop
any improvement (except double the size) to this?
added on the 2010-11-22 11:06:37 by wysiwtf wysiwtf
rulez added on the 2010-11-22 11:40:38 by SiR SiR
rulez added on the 2010-11-22 13:10:53 by chiourme chiourme
wow, cool noise! =]
rulez added on the 2010-11-22 14:20:09 by bitl bitl
sucks added on the 2010-11-22 14:35:36 by Mystra Mystra
noisy noise :D
rulez added on the 2010-11-22 16:22:16 by rez rez
rulez added on the 2010-11-22 16:38:18 by las las
size does not matter !
goddess, i'd like to touch a CPC once again.
rulez added on the 2010-11-22 16:49:10 by gentleman gentleman
teheres kolozrz!
rulez added on the 2010-11-22 17:00:26 by leGend leGend
rulez added on the 2010-11-22 17:45:04 by nekomono nekomono
"any improvement (except double the size) to this?"(wysiwtf)
Many ones, you should run it :)
- Fullscreen
- Does not crash
- Start faster
...and the 256 bytes version is really nicer (with sound).

A very small one just for you: 32 Bytes (better in MODE 2)
Code:2 PRINT CHR$(RND+127);:OUT &BD00,RND*9:RUN
You can replace "127" with "200" or "201" to get interesting textures. Sorry I can't to make shorter un Basic ;)
added on the 2010-11-22 18:52:37 by Supersly Supersly
Totally awesome. How do you do it? Open Border in Basic! aye! Respect.
rulez added on the 2010-11-22 22:05:50 by aki aki
sucks added on the 2010-11-23 00:53:12 by xTr1m xTr1m
Real screenshots:

BB Image

BB Image
added on the 2010-11-23 05:33:43 by chiourme chiourme
stop it
sucks added on the 2010-11-23 14:27:52 by bull bull
sucks added on the 2010-11-23 18:52:41 by havoc havoc
@sly: A mon tour... ;)
Pour gagné encore un peu, utilise le nom du fichier basic pour y inserer tes DATAs. Par exemple, cela permet de descendre le fichier TV-128.BAS de 128 bytes a 112 bytes.
Code: Edit 1 ...FOR x=1 TO 5:READ a,b:OUT &BC00,a:OUT &BD00,b:NEXT:WHILE 1:OUT &BD00,RND*255:POKE RND*&FFF+&C000,RND*255:WEND:DATA 9,1,1,48,2,50,4,24,13,0 a modifié en: ...FOR x=1 TO 5:OUT &BC00,peek(&A709+x)-64:OUT &BD00,peek(&A70E+x)-32:NEXT:WHILE 1:OUT &BD00,RND*255:POKE RND*&FFF+&C000,RND*255:WEND puis: save"IABDM!PR.8 run"IABDM!PR.8
added on the 2010-11-23 20:54:23 by chiourme chiourme
I love this idea (even if I consider it as cheating a little bit), but I didn't success to run it... can you verify the peek adress ? Are they the same on 6128 / 464 ? With or withour a RAMcard ? Your cheat could allow to attribute the 4 colours in mode 1 and maybe the raster of the 256b version.
added on the 2010-11-23 21:21:25 by Supersly Supersly
Testé sur un 6128 sans extension et WinApe 2.0 Alpha 17
added on the 2010-11-23 21:29:18 by chiourme chiourme
Joys of basic sizecoding...

I believe there are ways to do more :)

* Hex numbers may take more or less space than decimal ones depending on the number. I know that decimal 0 to 9 take only 1 byte, but numbers above that take 3 bytes each.
* Using variable for numbers used often (BD00) may get interesting too. Bonus if you use the same var for two things or more.
* The next step is using 'invalid' tokens. For example, with the line above, it should be possible to split it in two smaller lines just between the NEXT and the WHILE, and use a GOTO instead of the while/wend. But of course this takes more space because it's two lines. So, make the first one a bit shorter, and the opcode for : and NEXT will also serve as the header for the next line. Good luck figuring out line numbers after that.
* If you start playing with peek and pokes, it is also possible to automodify the code and/or read from it. For example a 'GOTO 1' could become a 'WHILE 1' if you poke at the right place :).
* Setting video mode and inks are done smaller with printing control chars (in catalog mode :)). And you can then reuse the chars as data for something else :)

Mh... maybe I should do my ownversion with all this...
@Chiourme : your trick does work only on a nude CPC. A RAMcard moves the filename adress.

@PulkoMandy : I tried many things yet.
* Hex numbers: it seem that they never help to win bytes : 9<&9 / 15=&F / 255=&FF ...
* using variable : a loss for only twice the same value (&BD00).
* invalid token : I am not convinced. Just show me ! Most of the interest to win bytes is for the 128b or smaller. So a single line is enough.
* automodify : I made tests to automodify a PRINT "NNNN" and create noise with it. But it took me more bytes to poke than to include the value in a CHR$.
* Printing controls are already used in the 128b & 256b for the colour / mode init
added on the 2010-11-23 22:22:47 by Supersly Supersly
Yes, I noticed automodifying may be painfulsometimes because you have to keep the address somewhere.

Invalid tokens are the most fun but also the less easy to write. But yes, space is limited here :). The idea would be to do a GOTO that jumps in the middle of an instruction to do something else, so use your bytes twice. The problem is doing something useful :)

Anyway, here's my own 64b (actually 45 bytes) noise for today :

1 out &bc00,rnd*255:out &bd00,rnd*255:print chr$(rnd*255);:run

Well, don't run this on a real CPC or you will likely kill your monitor. But it may do something nice before that if you're lucky :o)

Hex numbers are smaller for &BC00 and &BD00, but bigger for 0 to 9.

Another trick I just found: "run" is smaller and faster than "goto 1". "run 1" is slower, however.
rulez added on the 2010-11-23 22:58:04 by PulkoMandy PulkoMandy
didnt know amstrad could do this in 128b
sucks added on the 2010-11-23 23:36:20 by keith303 keith303
I used the slower RUN trick instead of GOTO in the 32b (previous page).

My favorite is this 40 byte one (8 bytes too long):
Code:1 PRINT CHR$(RND*15+129);:OUT &BD00,RND*255:GOTO 1 You can save 5 bytes (=35b) like this : 1 PRINT CHR$(RND*9+129);:OUT &BD00,RND*99:RUN

it can help to change colors, but I don't know how to reduce 3 more bytes in an elegant way !
added on the 2010-11-23 23:48:28 by Supersly Supersly
Interesting CPC coding discussion
rulez added on the 2010-11-23 23:52:38 by faraday faraday
[offtopuc] Sympa le CAT'arts (vu sur le site web) ! Je ne savais pas que cette pratique était développé à ce point...[/offtopic]
added on the 2010-11-23 23:59:28 by faraday faraday
what faraday said+
mixing Basic with pseudoASM always yielded into a mess tho! no matter what system. ( i know whoze fault that is ;) Rotten Gates of TchernoBill ! )
(les mecs venez sur bbs.demoscene.fr :p)
rulez added on the 2010-11-24 00:56:18 by wullon wullon
tv noise
sucks added on the 2010-11-24 07:03:19 by mic mic
rulez added on the 2010-11-25 00:37:29 by Sparklite Sparklite
rulez added on the 2010-11-28 03:22:47 by Buckethead Buckethead
rulez added on the 2010-12-10 19:28:25 by kyv kyv
sucks added on the 2011-03-21 21:09:52 by Octoate Octoate
sucks added on the 2012-04-16 16:33:36 by krusty krusty

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