pouët.net

leonard information 325 glöps

• general:
• level: user
• personal:
• first name: Arnaud
• last name: Carré

• demotool Windows Atari ST Wild Nintendo DS PackFire v1.6 by Rebels & Neural [web]
• Hi, me again :-) The package include the 68000 source code of LZMA depacking routine. The routine is really small compared to the original C version of the official LZMA SDK. So my question:
  Is that depacker the same version as the latest LZMA sdk? And if yes, could you point me to the "small" C version? Did you get it somewhere, or did you extract it from original source code?
  thanks!
• isokadded on the 2010-06-22 16:01:32
• musicdisk Atari STe Amiga Demo 2 by Oxygene [web]
• For those who didn't notice yet, the complete source code and tools to build the demo disk on PC is release on my website:
  http://leonard.oxg.free.fr/download/AmigaDemo2SourceCodeVersion.zip
  
• isokadded on the 2010-04-26 21:09:08
• demotool Windows Atari ST Wild Nintendo DS PackFire v1.6 by Rebels & Neural [web]
• you got it! thanks, it works now like a charm. LZMA is really amazing. My latest ATARI sound demo disk is now about 700Kb instead of 820kb!!! The drawback is that depacking is really, really slow (but you have to pay to get such packing ratio :-))
• isokadded on the 2010-04-17 01:14:04
• demotool Windows Atari ST Wild Nintendo DS PackFire v1.6 by Rebels & Neural [web]
• thanks! it's almost perfect :-) Why -t is "if possible" ? I want to try to pack my complete demo directory structure (LZMA seems a bit slow) with tiny mode, and some files append to be 0 bytes! could you change that if you specify -t, it output a tiny model file, even if -l would have produce smaller result?
  
  (btw: my program crash with some files when trying to use large model. In the depacker you specifiy A2 should point on probs, is it only a 15980bytes buffer large? or is there something else to worry about?)
• isokadded on the 2010-04-17 00:48:31
• demotool Windows Atari ST Wild Nintendo DS PackFire v1.6 by Rebels & Neural [web]
• >No need because for such small file the packer will select tiny output
  
  You're right in the general case, but believe me, I *need* that option :-) in my special case a tiny depacker is located in the bootsector. Currently I use ARJ mode 4 (not mode 7) for boot sector depacking routine, it takes only 112 bytes. You tiny depacker takes 152 bytes, and I WANT to test the packing ratio of your tiny mode. Please add a '-t' option so I can compare your small version with the ARJ4. 't' option for next release will be fantastic ! :-)
• isokadded on the 2010-04-16 23:50:21
• demotool Windows Atari ST Wild Nintendo DS PackFire v1.6 by Rebels & Neural [web]
• the -l option is great, but in some case you need to force the "tiny" mode. In my case I will try the tiny routine inside a bootsector, so I have to patch tiny depacker a bit, and use tiny binary. Should be terrific if I can force "tiny" way :-) ( "-t" ? :-))
• isokadded on the 2010-04-16 12:31:35
• demotool Windows Atari ST Wild Nintendo DS PackFire v1.6 by Rebels & Neural [web]
• Thanks for that version with depacker source code, really great stuff!
  Btw, could you told me the difference between the "Tiny" and "Large" depacker? "Tiny" seems to be a classic LZ-like algorythm. How can I specify the packing method with PackFire.exe (tiny or large deapck?)
• isokadded on the 2010-04-16 09:58:53
• demotool Windows Atari ST Wild Nintendo DS PackFire v1.6 by Rebels & Neural [web]
• >Too slow for realtime depacking.
  
  But how? 1Kb/s ? 0.5Kb/s ? 0.001 Kb/s ? Do you have an idea of the time to depack, say, 50Kb of packed stream?
• isokadded on the 2010-04-15 18:42:58
• demotool Windows Atari ST Wild Nintendo DS PackFire v1.6 by Rebels & Neural [web]
• striped down LZMA with only one MUL? wow pretty cool. Waht about the depacking speed on ATARI ST? (with LZH or ARJ I depack almost the same speed as the floppy is loading, that is, 15Kb/sec). What speed do you think LZMA is on 8mhz machine?
• isokadded on the 2010-04-15 01:26:39
• demotool Windows Atari ST Wild Nintendo DS PackFire v1.6 by Rebels & Neural [web]
• impressive packing ratio. Could I get in touch with you to get the ATARI source code depacker? So I can improve my demo system using your depacking routine?
  I see there is 32bits MUL instructions, are you using kind of arithmetic packer? (instead of classic LZ+Huffman stuf) ?
  
• rulezadded on the 2010-04-14 23:26:58