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

core: detect Switch 2 programs in NSP containers

2026-11-02T22:28:10+00:00

Read the selected program metadata before kernel initialization so NSP launches receive the Switch 2 memory layout and clock. This fixes Mario Kart World 1.8.0 crashing during startup while its loose 1.0 dump already boots.

loader: add NUP (Unencrypted (Archival) Package) container support

2026-11-01T18:53:47+00:00

1st pass of review: code cleanup & windows test

2026-10-31T17:04:23+00:00

Assisted-by: Claude Opus 5.5 (review, cleanup and log analysis)

texture_cache: keep Switch 2 VRAM use under the driver's budget

2026-10-31T17:04:23+00:00

Mario Kart World filled the GPU after a few minutes on 8 GB cards, and on 16 GB cards with uncompressed ASTC: textures were created without memory (garbage), then the emulator crashed. The Switch 2 collector thresholds came from the sum of all heap budgets, but on AMD the host-visible device-local heap is the same VRAM, so the critical threshold ended above the real budget and the collector never kicked in. Unbacked images were also counted at their full size. Thresholds now follow the main device-local heap's budget, re-read every 30 frames, and images count the memory they really have. Switch 2 titles on GPUs under 12 GiB re-compress ASTC to BC3 for the session when it is set to Uncompressed (EDEN_NX2_KEEP_ASTC=1 opts out), and EDEN_NX2_VRAM_LIMIT_MIB simulates a smaller GPU for testing. Assisted-by: Claude Opus 5.5 (diagnosis and code)

Fixed game support about docked/handheld mode, applying only to ns2 games. Tested on windows.

2026-10-30T19:27:35+00:00

core: return empty perf stats before the system is running (#30)

2026-10-30T14:09:38+00:00

The SDL frontend's title timer can fire before perf_stats exists and crashed on its null mutex during boot. Assisted-by: Claude (Anthropic) Co-authored-by: givethesourceplox <272928635+givethesourceplox@users.noreply.github.com>

nx2: run the guest counter at 31.25 MHz for Switch 2 titles

2026-10-30T06:31:58+00:00

The Switch 2 counter runs at 31.25 MHz and its SDK converts ticks with that constant: Mario Kart World's sdk builds 31,250,000 in nn::os::GetSystemTickFrequency, TickManager::ConvertToTimeSpan and TickManager::ConvertToTick (19.2 MHz appears nowhere). Eglantine counted at the Switch 1 rate for every title, so every tick-based time in a Switch 2 game was off by 1.63x: elapsed times read short, and a deadline of one 60 Hz frame converted to ticks waited ~27 ms. The wall clock now has a guest counter frequency, set at boot: 31.25 MHz for Switch 2 programs, 19.2 MHz otherwise, EDEN_NX2_CNTFRQ= to force one. CNTPCT reads, CNTFRQ_EL0, svcGetSystemTick, thread tick counts and the time services' tick conversions follow it, and the CNTPCT spin detection keeps its ~1.7 us threshold. Mario Kart World, title screen and attract demo, 180 s, same build: frame times unchanged (17-19 ms once warm), process CPU time 848 s instead of 930 s.

core: use the 12 GiB layout and auto-stub IPC for Switch 2 titles

2026-10-29T07:40:34+00:00

Switch 2 titles size their heap from the total memory and stop at the first unimplemented command, so they only booted with the 12 GiB layout and EDEN_NX2_AUTO_STUB set by hand. Detect them from main.npdm before the kernel starts and apply the layout as a per-game value (the configured layout comes back once the game is closed), and auto-stub unknown commands from Switch 2 processes.

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.

[hle][core] Hang Freeze Fix - Video Fixes - Revert Microsleep (#4316) (#4525)

2026-10-26T16:25:47+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. ------------------- Credit: amicuchu Co-Authored-By: Claude Opus 5.5 - Fixes Mario Strikers Intro Freezing from legacy. - Microsleep no longer needed for Absolum Video freezing and other videos freezing. - Revert `[service, nvhost] added machinery to allow microsleep between nvdec read requests to avoid guest panic in some games #4316` - Tested with CPU/GPU decoding on Linux/Windows. Special thanks to xbzk Co-authored-by: Your Name Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4525 Reviewed-by: Maufeat Reviewed-by: Shinmegumi