Jusant (PPSA10264)

[edubox]

Existing thread

• I searched this category for the title ID and no thread exists for this title on any platform.

Title

Jusant (PPSA10264)

Content version tested

02.000.000 (masterVersion 02.00; the dump directory is named 01.007)

AnyPS5 commit

main 87b810a1db with nothing on top for the first run. The run that reaches the scene has the two unmerged local changes listed below. Last updated 2026-10-28.

System tested

CachyOS, GCC 16.2.1, RTX 4080 SUPER (NVIDIA 615.78.08), 60 GiB RAM

Furthest point

A 3D scene renders. Whether it is the menu or gameplay is unverified: the captured frame has no readable text and only Cross was sent.

What is shown

• Plain main: aborts at compute shader 0x1a00ec0000: reads or writes a converted float image with 16-bit data, which is not implemented (fix(shader): load and store 16-bit data of converted packed images #11580).
• With fix(shader): load and store 16-bit data of converted packed images #11580 applied: aborts at ShaderRecompiler::Recompile: value IR instruction definition does not dominate its use for compute shaders 0x1ac12fa000 and 0x1ac12fd000. fix(shader): preserve read lane dominance across branches #8089 (fixes recompiler: ReadLaneEliminator rewrites a spilled lane read to a value stored inside a branch, which does not dominate the read; fix branch ready #8050) prevents it.
• With both: 240 s without exceptions, presenting a bright 3D scene.
• Frame rate in the last 10 s window: 72 presents (~7.2 FPS), GPU busy 82.5 ms per frame with 54.8 ms of idle gaps, ~755 render passes and ~135 dispatches per frame, 11,522 draws over 10 s. Dispatch cache: 8,259 hits against 209,462 evictions. Buffers: 126,000 uploads, ~71 GB copied out of imports and ~71 GB copied back over the run.
• No not implemented path appears after those two changes.

Current blocker

Frame rate in the rendered scene. It is not a missing export: the remaining cost is in the AGC/render path (render passes, dispatches and buffer imports), so it likely belongs with performance work rather than a new API.

How it was run

• Retail dump (8.6 GiB) converted with the current relinker: eboot.bin, sce_module/*.prx and prx/*.prx unwrapped and converted; app0 entries symlinked; no font substitution.
• ANYPS5_GPU="RTX 4080" APS5_PROFILE_DRAW=1 APS5_LOG_TIMESTAMPS=1, hidden window, 1080p output.
• Cross sent through APS5_PAD_INPUT_FILE with tools/pad_input.py at 45, 60, 75 and 90 s. It did not produce a new failure.
• Local logs: .anyps5-work/jusant-run/run{1..5}.log; the key lines are quoted above.