eglantine-cirakg/src/core/loader/nso.cpp, branch nx2

nx2: frame-locked input replay and quieter logs

2026-10-28T08:56:14+00:00

EDEN_NX2_KEY_RECORD records keyboard transitions as "f:code" against a global count of guest presents; EDEN_NX2_KEY_SCRIPT replays them on the same frames (or by seconds, as before), so a played session reproduces exactly. Debug aids: the PC/LR/SP of the first unmapped reads, NSO load addresses, EDEN_NX2_IPC_SUMMARY (request counts every 5 s), EDEN_NX2_FORCE_LOD0. Unmapped-access logging is rate limited and the per-draw/semaphore spam is demoted, so long sessions stay under the log size cap.

[loader] add ZBIC (zstd variant) NSO decompression support for Switch 22.0+ (#4482)

2026-09-27T10:48:45+00:00

- [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. ------------------- A new NSO compression method was introduced in Switch 22.0.0. This is a customized variant of zstd and is used when NSO flags have bit 7 set. Key characteristics: - ZSTD_MAGICNUMBER is set to 0x4349425A (b'ZBIC') instead of 0xFD2FB528 - ZSTD_LEGACY_SUPPORT is set to 0 - ZSTD_TRACE is set to 1, zstd version used is 1.5.7 (10507) - FSE_readNCount is replaced with a BIC (Binary Interpolative Coding) version which improves compression of entropy tables significantly Source: https://switchbrew.org/wiki/22.0.0 Implementation: - Detect ZBIC segments via NSO flag bit 7 (NsoFlags_UseZbicCompression) and/or ZBIC magic scan in nso.cpp - Fall back to LZ4 when ZBIC is not detected or returns unexpected size - Handle segment 0 alternate offset (0x100 vs 0x108) for both ZBIC and LZ4 References: - Atmosphère loader/strat zstd-zbic integration: https://github.com/Atmosphere-NX/Atmosphere/commit/082115187a0509cb6b8a757de639a4e4741b8712 - nxdumptool ZBIC segment compression support: https://github.com/DarkMatterCore/nxdumptool/commit/441e5c0904f29427987433be4eb057a2843d222a - STORM_SWITCH ZBIC implementation: https://github.com/ReiKatari/STORM_SWITCH/commit/1e09eb82b760aaf340b810031400991c0740c091 Tested with firmware 23.0.0 and ZBIC-compressed NSOs. Co-authored-by: xbzk Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4482 Reviewed-by: CamilleLaVey Reviewed-by: lizzie Reviewed-by: Maufeat

[core, hle, video_core, memory] Improve multi-process, display layers, dynamic shader cache and rework overlay (#4238)

2026-08-28T23:04:02+00:00

- [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. ------------------- - Dynamic shader cache reloading capability for qlaunch - Multi-process improvements (thanks to @frank1734), instead of just using the main application we now respect caller process (also did it for HID devices while I was at it) - Layer stack masks & shared buffer screenshot for video core, added different masks (screenshot, recording, etc.) this was discovered as an issue due to how in qlaunch the transition was not right between applications. May not be perfect but also fixes screenshots while using qlaunch - Reworked overlay display management (input and visibility) - instead of random numbers as I've previously did, I decided to add an AppletZIndex enum for better readability. Also split capability of input by touch and gamepad. - etc. Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4238 Reviewed-by: Samuel Reviewed-by: CamilleLaVey Reviewed-by: MaranBr

[fmt] use {#:x} instead of 0x{:#x} (#4170)

2026-07-25T19:47:07+00:00

continuation of #309 but applying to even more files than before :) also makes them lowercase because `0xfafafa` is better as `0XFAFAFA` Signed-off-by: lizzie Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4170 Reviewed-by: CamilleLaVey Reviewed-by: Maufeat

[video_core, hle] remove redundant parent references in system structs (#3908)

2026-06-23T04:31:25+00:00

reworked a bit to remove references of parent objects and instead pass as arguments to methods to prevent useless reloads Signed-off-by: lizzie Co-authored-by: maufeat Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3908 Reviewed-by: Maufeat Reviewed-by: crueter

[common/logging] Simplify logging logic and fix issues when logging before system is created (#3688)

2026-03-12T17:29:15+00:00

- our logging code was bigger than spdlog itself, why???? just keep it simple - fix issues when logging before logging system is even started - removes the "initialized logging twice" issue - removes uneeded indirection in file logging - uses direct formatting instead of jumping hoopla-around the fmt::format() ressult - code duplication and dead code removal as usual I did explore dup2() but I think it's not worth the hassle I did try `fwopen()` but it's better if things are just kept as-is. there is a lot of noise because I removed a bunch of redundant files on logging and just put everything in one file now normally this wouldn't be a good idea, however consider: the complexity of logging; it's less than 500 lines... does it really need a whole subsystem?!?!?! ITS JUST LOGGING Signed-off-by: lizzie Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3688 Reviewed-by: crueter Reviewed-by: DraVee Reviewed-by: CamilleLaVey Co-authored-by: lizzie Co-committed-by: lizzie

[core/loader] prevent program_image reallocations in NSO+KIP loading methods (#3639)

2026-02-28T00:06:33+00:00

also changes some methods to std::span<> as well, but mainly std::vector<> in the NSO/KIP loading stuff is not needed to be memcpy'ed and memmove'd around this should save a marginal amount of loading time (RDR1) Signed-off-by: lizzie Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3639 Reviewed-by: DraVee Reviewed-by: Maufeat Co-authored-by: lizzie Co-committed-by: lizzie

[nce] add split patch mode to support modules bigger than 128MB (#3489)

2026-02-07T21:59:38+00:00

nce patcher was extended to support modules larger than 128MB due to ARM64 branch limit. now added a pre-patch and (existing) post-patch module code. Allowwing MRS/MSR/SVC handler to remain within branch branch range Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3489 Reviewed-by: MaranBr Reviewed-by: CamilleLaVey Co-authored-by: Maufeat Co-committed-by: Maufeat

[fmt] use {:#X} for format instead of 0x{:X} (#309)

2025-08-27T20:39:11+00:00

Signed-off-by: lizzie Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/309 Reviewed-by: crueter Co-authored-by: lizzie Co-committed-by: lizzie

[core, nce] module_id cache key handling (#195)

2025-08-04T16:41:28+00:00

Uses Module_id plus offset for cache key, Module_id is unique to each module. Also passes the module_id everytime new patcher is created in case the module is too big. Co-authored-by: crueter Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/195 Reviewed-by: crueter Co-authored-by: wildcard Co-committed-by: wildcard