The guest's second-kind Bessel functions return -inf and raise the divide-by-zero exception for x = +-0 (see e_jn.c), but the UCRT returns NaN for y1 and yn. Route x == +-0 through a shared helper, cover ynf(2, 0) in the guest math test, and note the special case in the libc technical debt.
The managed SceRudp.Rudp.EnableInternalIOThread in PPSA06888's Unity
metadata takes (uint stackSize, uint priority, ulong affinity), which
gives the signature. Like sceRudpEnableInternalIOThread it reports
RUDP_ERROR_NOT_INITIALIZED before sceRudpInit and success after it,
without starting a thread.
Co-Authored-By: Claude Haiku 5.5 <[email protected]>
sceRudpNetReceived follows sceRudpNetFlush: it reports
RUDP_ERROR_NOT_INITIALIZED before sceRudpInit and success after it, since
no packets are ever received. sceRudpGetOption now has the signature its
PPSA06888 call sites use, (ctx_id, option, value, len), and still throws
because the option codes, defaults and errors are unknown.
Co-Authored-By: Claude Haiku 5.5 <[email protected]>
v_fma_f16, v_fmac_f16, v_fmamk_f16, v_fmaak_f16 and v_fma_mix_f32 with
f16 sources left the NaN of an invalid operation to the driver, so
inf * 0 gave 0x7fff and 0x7fffffff on NVIDIA where the hardware gives
the default NaN 0xfe00 and 0xffc00000. An inf * 0 product, or a NaN
from sources that are not NaN, now gives the default NaN; NaN sources
are still left to the driver.
MinGW libstdc++ up to GCC 16 does not treat a reparse point as a link in
std::filesystem::remove_all, so a host tree that holds a symlink is walked
through the link and never returns. Add RemoveTree, which removes the tree
itself on Windows, and use it where save data, app content and the shader
disk cache removed host trees. The libstdc++ fix is in GCC 17 (88856ad855ae).
Queue the stream in the table of the 8 standard stream
slots of Dinkumware's ios.cpp: the first free slot or the one
that already holds the stream, with a reference count per slot,
and the destructor suppresses the destruction of a standard
stream while its slot still has open references.
A bundled libc.prx can export the ten allocator NIDs while forwarding
them to HLE, so adopting its exports for a title whose replacement
table is empty sends HLE allocations back into themselves. Keep the
default heap in that case, as before the guest SDK adoption.
A title can relocate a registered shader header, and the register, special and
semantic arrays it points at, into memory of its own and resolve the ABI with
that copy (Astro's Playroom, PPSA01325, #2914). SameHeader accepted such a copy
only while every pointer inside it stayed put, so a moved array left the
resolution throwing "refers to a replaced shader header".
Accept the copy when every array it names still holds the registered bytes: the
registered header then decodes what the copy describes, nothing is copied and
ShaderSnapshot stays immutable. A copy whose arrays differ or are unreadable
still throws.
Add sceSysmoduleUnloadModuleInternalWithArg to match the existing
sceSysmoduleLoadModuleInternalWithArg export. Decrement the module load
count on valid internal IDs, check module existence in kModuleTable,
and set the return pointer when provided.
Add unit test coverage in GuestSysmodule for invalid values, unloaded
modules, successful argument unload, and unknown IDs. Update technical
debt documentation.
Adds what testers reported in the Q&A thread and what our own runs
showed: confirming the GPU and the cache state, AC power and refresh
rate, the Windows exit code of an uncaught exception, Windows session
and scheduled-task start, Unity module placement and the MinGW DLLs,
a section on measuring performance, and the report fields.
Drops APS5_NO_MOUSE_CAPTURE, which main no longer has.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01BywPXoZACVi8ALV4JKvuPZ
A report names the GPU as the log's `Selected GPU name=` line shows it, since AnyPS5 can fall back to llvmpipe without presentation support or pick another adapter on Windows (suggested by odntht on #6627).
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01BywPXoZACVi8ALV4JKvuPZ
Draft guide for running a title on AnyPS5: the build and conversion steps,
the environment variables to set for each run, what to read in the log and
the exit code, how to tell a stall from a crash, Windows-specific notes, and
what to include when reporting a result. Maintainers are asked what they need
from it in the Q&A discussion linked from the page.
Co-Authored-By: Claude Haiku 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01BywPXoZACVi8ALV4JKvuPZ
A multisampled DCC color target imports its uniform DCC fast clear on
first use and then refuses any later change to its color, DCC or CMASK
memory. Titles built on the PS5 Mesa stack fast-clear such a target
every frame with two buffer fills, the CMASK to 0xcc (FMASK cleared,
color expanded) and the DCC to a uniform clear key, so the second
frame stopped on "writes to a resident multisampled DCC target or its
metadata are not implemented".
The fills of a resident DCC target's metadata are now noted. When a
fill covered the whole DCC range since the last use and the range holds
its key once pending writes land (LandedUniformMetadataByte, which
reads the bytes directly rather than through the resident read guard),
the next use clears every sample to that key's color, as the import
does, and takes the new DCC and CMASK generations. A CMASK written
since must have been filled whole too. Partial fills, other keys,
CMASK-only writes and any write to the color memory are still refused.
Fills of a DCC target's CMASK no longer go to the CMASK-only fast-clear
tracker, which refused the expanded code 0xcc.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
An indirect draw drained queue 0's draw pipeline on entry and recorded every
record on the worker, so titles that draw mostly through DRAW_INDIRECT,
DRAW_INDEX_INDIRECT and DRAW_INDEX_INDIRECT_MULTI got no overlap between the
worker's capture of one draw and the committer's recording of the previous.
The draw now drains only when its records or its count overlap a write still
queued on the pipeline. Records drawn inline drain first, so they stay in
order, and the last drawn record is queued like a direct draw, carrying its
write ranges. APS5_NO_PIPELINED_INDIRECT=1 restores the drain on every
indirect draw.
agc_driver_pipelined_indirect_draw holds the committer with a blocking item and
checks that two indirect draws queue behind it and draw what a direct draw
does, and that a draw whose record a queued label writes waits for it.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
The saver thread took the snapshot lock with a blocking exclusive lock. Behind
a pipeline creation that runs for minutes (an NVIDIA compile of a 1.5M-word
compute pipeline), the queued writer made the shared_mutex hold every later
pipeline creation on every queue until the compile ended. The periodic save now
tries the lock and waits for the next interval when it is busy; SaveNow and the
teardown save still wait.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
PPSA26578 (issue #7624) imports _ZSt26_Throw_bad_optional_accessv (NID
KwzEip7m6TM) from libc, and its bundled libc.prx does not export it,
causing the process to exit with 0xC0000139 (GetLastError: 127).
Implement std::bad_optional_access type record and vtable deriving from
std::exception, thrown through ThrowPlain, with what() returning
"bad_optional_access", and add unit test coverage in ExceptionRuntime.
v_add_f64 and v_mul_f64 ignored the FLOAT_MODE f16/f64 denormal field.
On RDNA2 (gfx1031) bit 6 clear flushes both inputs to a zero of their
sign, and bit 7 clear flushes a sum below 2^-1022 and a product whose
exact value rounded to 53 significant bits with an unbounded exponent
is below 2^-1022. The product test scales one source by 2^64 and
compares the host product with 2^-958.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
In a payload process on a PS5 (firmware 12.70),
sysctlbyname("kern.rng_pseudo") answers a size query with 64 and gives
at most 64 bytes per call, up to a 65536-byte buffer. A buffer smaller
than 64 bytes gets as many bytes as its length and a null length gets
none, both with -1 and ENOMEM; a null buffer with a null length returns
0, and errno is kept when the call succeeds. Here the whole buffer was
filled, a size query threw and the length was never changed. The 64
random bytes are now drawn only for a read that passes both a buffer
and a length.
AI-assisted: yes
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Adrià