pouët.net

introspec information 746 glöps

• general:
• level: user
• personal:
• portals:
• demozoo: profile
• cdcs:
• cdc #1: paimen by Coma
• cdc #2: Unshaped by Masters Of Electric City
• cdc #3: Number One/Another One by Carillon & Cyberiad [web] & Fairlight [web]
• cdc #4: sjasmplus

• demotool MS-Dos Commodore 64 Amstrad CPC ZX Spectrum MSX apultra
• Apultra is actually a very old new packer at heart. Those of you who used executable compressors for 16-bit MS-DOS programs may remember aPACK by Ibsen Software, which was one of the best executable packers at the time. The compression format underlying aPACK is a fairly well tuned variation of LZ77/LZSS with rep-offsets, a sort of LZX-lite. aPACK became the basis for universal compression library ApLib, still available from Ibsen Software. It offered a decent compression ratio (worse than Exomizer but better than most other pure LZ77/LZSS compressors). It also had a fairly good balance between the compression ratio and decompression rate, so decompressors were ported onto many old systems and used, for example, in all ZX Spectrum games based on La Churrera engine.
  
  The only bad thing about it was the fact that ApLib is freeware, but with closed source. The compressor was not updated for a fairly long while and the competition was gradually catching up.
  
  It was recognized during the last few years that the format used by ApLib is not exploited by the official compressor fully. A series of compressors with better ratios than the official compressor were produced by enthusiasts. Notably, CAP by Sven-Åke Dahl got so good that it edged to just 1-2% behind Exomizer. This is particularly impressive because much simpler format of ApLib allows decompression at about twice the speed compared to Exomizer. Another very recent compressor OAPACK by Eugene Larchenko implemented a brute-force truly optimal compression into ApLib format, albeit at the expense of significant memory and speed requirements.
  
  Apultra written by Emmanuel Marty is a pragmatic compromize offering nearly optimal compression into ApLib format at very competitive speed. It is an open source software with the zlib licence, written in pure C, which has about the same compression ratio as CAP (i.e. about 0.5% behind the truly optimum compression and about 1.5% behind Exomizer). It also provides a number of other useful features, such as the support for backward compression and the work with external dictionary files.
  
  Apultra also comes with a number of new highly optimized decompressors. John Brandwood contributed a very efficient 6502 decompressor. Dan Weiss contributed an ARM7 decompressor. Emmanuel Marty implemented support for 8088 and x86. I contributed new size- and speed-optimized decompressors for Z80 - the size-optimized one is only 139 bytes long and the speed-optimized one is almost 20% faster than the previously fastest decompressor. Backward decompressors, at least on Z80, are even smaller/faster.
  
  Basically, on 8-bit platforms it is a good option for when you need a reasonably good ratio, without having to sacrifice too much speed. On 16/32-bit oldschool platforms it is probably a good choice for when reasonably fast decompression is needed. Give it a try, it may surprise you.
• isokadded on the 2020-06-11 22:59:47
• 128b ZX Spectrum art by g0blinish
• Looks pretty good; I wish your screenshot was chosen with more care.
• rulezadded on the 2020-05-18 14:42:12
• 256b MS-Dos Color Show by Abaddon [web]
• Palette 6 from above seems to belong to Above by sensenstahl. At least I recalled that intro when saw this palette :)
• rulezadded on the 2020-05-01 23:56:20
• 64k Amiga OCS/ECS Colombia by Lemon.
• Ah, I am starting to get the context a little bit better, Soundy. Well, for all it's worth, I agree with you on this particular occasion (even if I do tend to prefer overly synchronized productions otherwise). Not because of how much effort was spend coding it, but because I find your production to be designed with more care and attention to details. And to prove that I really mean it, I am going to steal your wobbly credits in one of my future demos.
• rulezadded on the 2020-04-26 15:56:58
• demo Atari XL/XE Unsolved by Masters Of Electric City
• I loved you before, but now that you added some pixel art - I adore you.
  Your work is always inspiring, even when you draw same old fractals.
  Have a look at https://www.pouet.net/prod.php?which=20982 - I think it is similar in spirit to what you do here.
• rulezadded on the 2020-04-04 14:44:51
• intro NES/Famicom New Year 2020 by Shiru
• Exceptionally smooth. Never thought I like NES, but here you go.
• rulezadded on the 2020-01-08 10:33:52
• slideshow ZX Spectrum MAC Gallery Vol 1 (ZX Spectrum 128K) by Batman Group
• What Optimus said. And also, wow. We love MAC.
  Welcome to ZX Spectrum, Rhino and we hope to see even more one day.
• rulezadded on the 2019-12-09 00:16:18
• demo Atari XL/XE Near by Agenda
• @Photon, yes, I knew how it is done, but the phrase "texture mapping" came to my mind at the time, so I called it incorrectly. The reference to Dawnfall is my proof :)
  
  Lovely demo, re-watched it with great pleasure.
• isokadded on the 2019-12-04 22:01:17
• demo ZX Spectrum Hara Mamba, Scene! by sibCrew
• I hate the negativity of it and this is probably the first time when I did not had any laughs in your funny demo. At the same time, the tech is brilliant, as ever, and, in fact, better than ever. You are clearly the force to be reckoned with.
• rulezadded on the 2019-11-07 21:28:15
• demo ZX Spectrum TIRATOK by deMarche
• Very cool effects and it is nice to see you trying various new technologies, even if not all of them are working as well as your signature 4x4 multigiga.
• rulezadded on the 2019-11-06 23:55:18