nxnative-easy/dm/games/010013C00E930000

Hollow Knight: Silksong (010013C00E930000)

Update 1.0.30000 (v655360) over the base game, SDK 20.5.8. Unity 6000.0.50f1 IL2CPP with FMOD (one AudioOut) on NVN. Modules main, subsdk0 (the SDK's movie library, whose movie::Extractor demuxes the 27 MP4 cinematics, H.264 and AAC; Intro_Cinematic.mp4 after a new file) and sdk. Plays on the iPhone. On the Mac: the logos, the title, a new file, the intro poem, the opening cinematic with its sound, and Hornet under control in the first two rooms of Moss Grotto (bind, jump, attack), with music and sound, at 60 fps as on the Switch (30 while a cinematic plays, as the game asks); memory flat in play. The base game alone (1.0.27776: another main, the same sdk and movie module) packs from a derived profile with its own 2,244 shaders and plays the same opening on the Mac with no red line.

What it needs

Setting	Where	Why
Node area cut 1 GB → 62 MB	dm/tools/sdk_patches.py, sdk build e01950c5… (the constructor at sdk+0x145bec; the movs at +0x145bfc and +0x145c68)	Unity 6's address regions start after the node area: +3.00 GB of the alias region in the first room without it, +2.26 GB with it; see Memory
sys_resource 0x1000000	game.tsv	the NPDM's 16 MB of system resource: virtual address memory
5 GB guest layout with the hardware pool: mem_reserve 0x140000000, mem_alias 0x118000000, mem_stack 0x10000000, app_pool 0xCD500000	game.tsv	the block of the other Unity games with virtual address memory (256 MB in front + 4.375 GB alias region + 256 MB stack region + 128 MB heap region); the pool is the hardware's (3.2 GB): Unity only reads it through QueryMemoryInfo, and nothing maps against it
nn::hid::GetDebugPadStates	host, hle_hid.c (every game)	an nn::diag abort in the first frames; see Services
shader_groups /Data/=data	game.tsv	everything is under Data/: the player's serialized files and the StreamingAssets bundles
No pad_layout (the 2D default)	game.tsv	A binds, B jumps, Y attacks; see Input and Open

Frame rate

• 60 fps, as on the Switch. While a cinematic plays the game draws 1280x720 with a window crop and asks for present interval 2 (30 fps).

Memory

• 16 MB of system resource (virtual address memory) and no heap: Unity 6's nninitStartup (main+0x118cb70) only calls QueryMemoryInfo and SetMemoryAllocatorForThreadLocal, so it sets up no StandardAllocator, and nothing aborts at startup as with 2022.3. Unity's own allocator reserves address regions with nn::os::AllocateAddressRegion and commits pages with AllocateMemoryPages in the alias region.
• Resolved: the provisional profile's block was far too small. main imports no SetMemoryHeapSize, and the provisional profile took that for a game living in its bss (a 1 GB block, 256 MB of alias region) while Unity maps 1.5 GB in the first room. profile_guess.py now gives every game with an NPDM system resource the 5 GB block (Absolum and Pokémon Legends: Z-A, heapless too, came out right with it).
• Current: the node area still sits at the start of the alias region, so it takes the cut: without it the high-water mark was +1.00 GB at nninitStartup and +3.00 GB in the first room of play; with it +2.26 GB, 1.51 GB mapped.
• Measured on the Mac: resident about 2.1–2.15 GB and 1.25 GB of GPU memory, flat for 100 s of play.
• BALL x PIT (010086A022444000, Unity 6000.0.62f1, SDK 20.5.19) takes its memory the same way and needed only the same cut on its sdk build.

Services

• Resolved: an nn::diag abort with Result 0x2aca in the first frames of nnMain (bt: sdk+0x514580 main+0x1296c64 …). main+0x1296c60 calls hid::GetDebugPadStates(states, 16) every frame, and the SDK's own reads a debug pad resource nothing initialized (module 202, hid). The host had only the single-state GetDebugPadState; the history form now answers every requested entry as not connected, newest first with consecutive sampling numbers (hle_hid.c).

Input

• A binds, B jumps, Y attacks (the game's own prompts name A and B). It stays docked at 1920x1080 with the 2D pad layout. Whether it reads touch in handheld mode has not been tried.

Files and shaders

• Nearly everything is in 2,068 Addressables bundles (StreamingAssets/aa/Switch).
• 2,450 stage shaders: 1,189 vertex, 1,193 pixel, 67 compute and one geometry shader (which does not build), 11 of them the player's own GLSLC outputs in main.
• The bundles carry their type trees (they report the engine version 0.0.0, Unity's stripped version string), so unityfs.py read Unity 6's Shader objects with no layout written out.

Mac routes

• From a fresh save, DM_KEYS="f1600:A,f1900:A,f2200:A,f2500:A,f2800:A,f9400:A~1.5,f9700:LLeft~60,f9800:B~0.5*60/50,f9830:Y*60/50" starts a new file in slot 1, plays the poem and the opening cinematic (control at about frame 9,200), binds, and walks left into the second room (its "B Jump" prompt), jumping and attacking as it goes.

Found on this game

General host changes first needed here; each applies to every game:

• hid::GetDebugPadStates, the history form (hle_hid.c): History reads fill every requested entry.
• Unity 6 memory with no StandardAllocator and no heap, and the NSP script's 5 GB block for every game with an NPDM system resource (profile_guess.py): Unity 6 takes its memory with no StandardAllocator and no heap, dm/games/README.md, Adding a game.
• Unity 6 Shader objects read from the bundles' own type trees: Unity 6 Shader objects.

Open

• The pad layout disagrees: the profile has no pad_layout (the default simple, 2D) and the notes say 2D, but README.md's touch-controls paragraph does not list this game among those that start in 2D.
• Whether it reads touch in handheld mode has not been tried.
• The one geometry shader does not build.