Read only miror of the eden emulator
Find a file
PavelBARABANOV 58968bd127
[core] Support block-compressed NSZ and XCZ (#4552)
- [x] I have read and followed the [Contribution Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/CONTRIBUTING.md#code-contributions).
- [x] I have read and followed the [AI Policy](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/AI.md).
- [x] I have read and followed the [Coding Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/Coding.md) to the best of my ability.

-------------------
- Add NCZBLOCK (nsz -B / .xcz) reader: each read decodes only the covered blocks and re-encrypts CTR sections, no disk output.
- Allow installing solid .nsz to NAND via DecompressNCZForInstall (lazy, incremental decode with frontier, O(n) instead of O(n^2)).
- Accept BKTR updates with thousands of sections (MaxSectionCount = 0x10000).
- Wire .nsz/.xcz into loader, registered cache, scanner, and NAND install (content_manager.h), and reject solid NCZ from the game list.
- Bump the pinned zstd to 33618c8 in cpmfile.json, which includes the upstream AArch64 revert ([33618c89](33618c89e5)) for a ZSTD_decodeSequence branch optimization that could corrupt data on ARM64; without it, solid NCZ decoding on Android fails with "Data corruption detected".

NCZ format and CTR counter semantics follow the reference nsz tool and its
Rust port:
- https://github.com/nicoboss/nsz (Decompressor.py, BlockDecompressorReader.py)
- https://docs.rs/nsz-rs/0.3.0/src/nsz_rs/decompress.rs.html

The last-block edge case (decompressed size is an exact multiple of block
size) is handled as described in https://github.com/nicoboss/nsz/issues/210

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4552
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Reviewed-by: Shinmegumi <shinmegumi@eden-emu.dev>
2026-10-26 17:23:18 +01:00
.ci [tools] refactor, use #!/bin/sh, update license files (#3998) 2026-05-22 21:15:31 +02:00
.forgejo/workflows [ci] Only update translations once a week (#4256) 2026-08-08 05:46:52 +02:00
.github [docs] revise AI policy (#4522) 2026-10-13 23:54:51 +02:00
.patch [cmake] Use a debloated boost distribution (#4198) 2026-09-15 07:22:23 +02:00
.reuse [qt] nuke game compat list (again) (#4201) 2026-07-12 09:32:11 +02:00
.tx [cmake] feat: FFmpeg CI, allow 16kb android builds, update translations for transifex (#2543) 2025-09-23 19:38:11 +02:00
CMakeModules [cmake] fix macOS compilation by forcing lz4 to be static (#4540) 2026-10-16 21:41:11 +02:00
dist [dist, android] Update translations from Transifex for Oct 12 (#4527) 2026-10-12 19:23:00 +02:00
docs Revert "[hle] constexpr handler dispatch maps, introduce version gating (#4480)" (#4532) 2026-10-15 08:45:15 +02:00
externals [loader] add ZBIC (zstd variant) NSO decompression support for Switch 22.0+ (#4482) 2026-09-27 12:48:45 +02:00
hooks [tools] refactor, use #!/bin/sh, update license files (#3998) 2026-05-22 21:15:31 +02:00
LICENSES general: fix trailing whitespace 2024-01-08 09:34:32 -05:00
src [core] Support block-compressed NSZ and XCZ (#4552) 2026-10-26 17:23:18 +01:00
tools Revert "[hle] constexpr handler dispatch maps, introduce version gating (#4480)" (#4532) 2026-10-15 08:45:15 +02:00
.codespellrc core: refactor emulated cpu core activation 2023-12-04 10:37:16 -05:00
.git-blame-ignore-revs Skip git blame 2023-11-04 18:26:49 +00:00
.gitattributes chore: make yuzu REUSE compliant 2022-07-27 12:53:49 +02:00
.gitignore [chore] re-add out/ to .gitignore (#4578) 2026-10-26 16:23:23 +01:00
.shellcheckrc [tools, cmake] refactor: update/hash check scripts, use tags for some more deps, proper CPMUtil separation (#2666) 2025-10-05 03:04:53 +02:00
AGENTS.md [docs] revise AI policy (#4522) 2026-10-13 23:54:51 +02:00
CMakeLists.txt [cmake] Use a debloated boost distribution (#4198) 2026-09-15 07:22:23 +02:00
CONTRIBUTING.md [docs] revise AI policy (#4522) 2026-10-13 23:54:51 +02:00
cpmfile.json [core] Support block-compressed NSZ and XCZ (#4552) 2026-10-26 17:23:18 +01:00
Doxyfile chore: make yuzu REUSE compliant 2022-07-27 12:53:49 +02:00
LICENSE.txt chore: make yuzu REUSE compliant 2022-07-27 12:53:49 +02:00
README.md [docs] Various grammar fixes, fix dead links, update deps.md, merge RDOC into Debug.md (#4315) 2026-09-01 06:45:47 +02:00
shell.nix Revert "[audio] Replace libopus with FFmpeg (#4169)" (#4419) 2026-09-14 14:34:24 +02:00


Eden
Eden

Eden is a free and open-source (FOSS) Switch 1 emulator started by developer Camille LaVey.
Written in C++, with builds for Windows, Linux, macOS, Android, FreeBSD and more.

Discord Stoat

Compatibility | Development | Building | Download | Support | License

Compatibility

The emulator is capable of running most commercial games at full speed, provided you meet the necessary hardware requirements.

A list of supported games will be available in future. Please be patient.

Check out our website for the latest news on exciting features, monthly progress reports, and more!

Packaging status

Contribute

To contribute to Eden; be it financially, code, bug reports, or otherwise, see our Contributing guidelines.

Documentation

We have a user manual! See our User Handbook.

Building

See the General Build Guide

For information on provided development tooling, see the Tools directory

Download

You can download the latest releases from our release page.

Save us some bandwidth! We have mirrors available as well.

License

Eden is licensed under the GPLv3 (or any later version). Refer to the LICENSE.txt file.

Special thanks

Super special thanks to Cloudflare for preventing the git server from blowing up.

  • Yuzu
  • Ryujinx
  • Sudachi
  • Citron
  • Torzu
  • Suyu
  • Ryubing

And everyone who continues or had contributed to the project! <3