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 Windows Commodore 64 Amstrad CPC ZX Spectrum MSX LZSA
- @dOc.K, I guarantee you that the average ratio is far behind the Shrinkler. You probably were exceptionally lucky with your choice of test data. Anyway, send any questions you may have to zxintrospec@gmail.com
- isokadded on the 2019-07-29 00:13:53
- demo Commodore 64 Stolen Properties by Triad [web]
- I loved it. Great ambience.
- rulezadded on the 2019-07-25 17:15:41
- demo Atari ST MOTUS by SMFX
- I've no idea why so many sceners scream "Amiga" when Atari ST has this much to offer. Particularly graphics are absolutely exceptional here, but the flow and sync are just as good. The idea to make a tunnel out of the multilayered checkboard zoomer is probably what surprised me most.
- rulezadded on the 2019-07-10 22:19:54
- demo BBC Micro Wave Runner by bitshifters collective [web]
- Substantial improvement on the last year's demo and quite possibly the best trackmo for BBC Micro thus far.
- rulezadded on the 2019-06-24 09:04:44
- demo PICO-8 earthxit by Rift
- Very solid concept.
- rulezadded on the 2019-06-23 10:42:48
- demotool MS-Dos Windows Commodore 64 Amstrad CPC ZX Spectrum MSX LZSA
- LZSA is a new data compressor written by Emmanuel Marty that was designed for using on small, primarily 8-bit platforms, and heavily optimized for high decompression speeds. It comes as a single executable capable of compressing into two data formats: one is a purely byte-based, aimed at the highest possible decompression speed, and another is a mixed byte/nibble-based compressor with higher compression ratios that is still capable of highly competitive decompression speed.
Both compressors are also capable of some strategic variability, so for each specific compression format, one can choose to either maximize the compression ratio or to sacrifice some of the ratio (on specific files) to increase their decompression speed.
Viewed from this perspective, the first available compression format, "LZSA1", can be seen as either an equivalent of LZ4 in terms of decompression speed, with about 3%+ higher compression ratio, or as equivalent of LZ4 in terms of compression ratio, while being up to 9% faster to decompress (all measurements of decompression speeds are done for Z80 decompressors).
The second available compression format "LZSA2" has a compression ratio similar to ZX7 (it is possibly 1-2% worse on graphics, but is 1-2% better on most other types of data, especially for larger file sizes). At the same time, it is 50-60% faster to decompress on Z80.
I contributed to this project size- and speed-optimized decompressors for Z80. The decompressors for 8088 and 6502 written by Emmanuel Marty are also provided. The project has been open-sourced:
https://github.com/emmanuel-marty/lzsa
so please contribute any new decompressors, or suggest improvements to the existing ones.
In any way, if you are working on your next treckmo for an old computer and need to keep decompression speeds for your internal data in check, this is probably the first compressor to be designed with you in mind. Please make a demo about it! - isokadded on the 2019-06-19 21:52:20
- demo Windows 쉿 (hush) by Limp Ninja [web]
- The only thing this misses is a perfect looping.
- rulezadded on the 2019-06-09 14:14:25
- demo ZX Spectrum aeon by Triebkraft & 4th Dimension
- When a demo gets into top three prods for the platform, esp. platform with such a rich scene history as ZX Spectrum, many people tends to complain about it. Supposedly, it is just not as good as some other demo, or it is not a coding feat enough, or the pixel graphics in it are relatively sparse. However, this demo is in the top 3 for over ten years now and it gets a steady stream of positive comments, which must count for something.
So, to put is simply. This is one of the most "complete" demos on the platform. Of course, it is imperfect and it can be criticised for various things. However, it just works, the music does not get tiresome and the kaleidoscope is just as exciting as when I saw it for the very first time. It just works together well and this is a lot more than can be said about many other contenders for the top. - rulezadded on the 2019-05-24 18:40:51
- demo Commodore 64 NGC 1277 80% by Samar Productions
- Amazing graphics and some very fresh interpretations of effects. Will be definitely looking for the final, but even this incomplete version is very impressive.
- rulezadded on the 2019-05-24 00:48:04
- demo MS-Dos Hyperventilation by Byterapers [web]
- Yes, it's a mess, but what a glorious mess it is.
- rulezadded on the 2019-05-21 20:21:30
account created on the 2013-06-24 00:03:10