pouët.net

dominikr information 23 glöps

• general:
• level: user
• personal:
• first name: Dominik
• last name: Russenberger
• portals:
• csdb: profile
• demozoo: profile

• 128b Linux Orange vs Green
• Quote:

  nice xor pattern effect :)

  
  Thanks! I hope to create some more interesting effects for my next demo, but after all the ELF headers and framebuffer setup there wasn't much space for actual gfx code left
• isokadded on the 2026-03-04 15:37:50
• 128b Linux rot(ate)
• Nice to see that I'm not the only one in the world doing 128b linux demos :). And gfx *and* sound in 128b, nice :)
  
  Bit of a bummer that I'm apparently not the first one to come up with the '<>/dev/fb0' trick :)
  
  I guess command line arguments were not allowed at Lovebyte and that's why there's a shellscript wrapper?
• rulezadded on the 2026-03-04 12:59:25
• 512b demotool Linux lz4pack
• Quote:

  Maybe, you could have it decompress directly into the stack of the current process and just jump there afterwards. You would just need a mprotect syscall to make give the memory execute permissions.

  
  Yes, this version is a safe one-size-fits-all packer. The newer version I'm working on is at 106b with the
  Code:jmp esp
  option. No need for mprotect actually, as 32bit has the stack executable, lacking GNU_STACK phdrs. I also made some other decompressors: 9-14b for RLE, 18b for LZ77, 21-31b for LZSS, 82b for zx0 (ported from DOS). 31b LZSS has similar ratio to LZ4, that would result in a 78b stub.
• isokadded on the 2026-03-04 12:25:53
• 512b demotool Linux lz4pack
• small LZ4 packer for Linux/x86.
  Whole compressor is 511 bytes, decompression stub is 156 bytes.
  See nfo file for more
• isokadded on the 2026-03-02 18:50:32
• demo Windows bhack by Spinning Kids [web] & JapoTek
• really nice visuals, and thanks for the war stories :)
• rulezadded on the 2026-03-01 16:49:52
• 128b Linux lintro by fsqrt [web]
• If anyone wants to run it on a contemporary linux system... execute
  Code:sudo sysctl -w vm.mmap_min_addr=0
  beforehand to prevent an immediate segfault
• rulezadded on the 2026-02-24 15:19:09