A load selected instead of branched still accesses memory, so its fallback
element must be one no write can race with: scratch keeps element 0, LDS in
workgroup or function memory reads a sentinel dword appended after the
program's LDS and lock, and storage buffers read element 0xfffffffe, which
robustBufferAccess2 turns into a zero load without a memory access. The
device enables robustBufferAccess2 when it has it and the target carries the
flag; without it, and for LDS in device memory, buffer loads keep their
selections. The aligned high word of a buffer read re-reads the low word's
element instead of word 0. agc_guarded_memory_loads traces the emitted loads
in both device modes.
Co-Authored-By: Claude Fable 5.1 <[email protected]>
LDS, scratch and direct storage-buffer loads load element 0 when the lane is
inactive or the address is out of bounds and select 0 as the result, instead of
opening a selection per guard. Stores, atomics, formatted and physical-address
accesses keep their branches. A branch guard cost four blocks per lane half, and
the host compiler's time grows with the block count: PPSA11142's merged PSP
vertex program emitted 16,983 blocks and 1,710 conditional branches, 5,907 and
868 with the selects.
Co-Authored-By: Claude Fable 5.1 <[email protected]>
Implement sceSslGetSerialNumber, sceSslGetSubjectName, sceSslGetIssuerName, sceSslGetNameEntryCount, sceSslGetNameEntryInfo, and sceSslFreeSslCertName. Signatures follow VitaSDK. Mbed TLS extracts the certificate's serial number and X.509 subject and issuer distinguished names, extracting OID attribute short names (or numeric strings) and value strings.
sceSystemServiceParamGetInt answered 0 for the time zone (parameter 4)
and summer time (parameter 5), so the console looked set to UTC while
libSceRtc and libc convert local time with the host's zone. Titles add
the time zone in minutes and 60 more minutes when summer time is 1 to
UTC to get the local time (Apollo, GoldHEN's frame logger). Both now
follow the host's local time zone: summer time is whether it is in
effect, and the time zone is the current offset east of UTC less the
summer time shift while it is.
On Windows that shift is the C runtime's own summer time bias
(_get_dstbias), the one localtime_s applied, not a fixed 60 minutes.
The UCRT reads the system zone when libc.prx loads and keeps that
zone's bias after TZ is set later, so on a host whose system zone has
no summer time (the CI runner's UTC) a TZ of CET-1CEST shifted by 0 and
the time zone came out as 0. The cause and the change are screamm's,
from the review.
Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
Implement sceNgs2GeomApply, which was previously an unimplemented
throwing stub and was blocking Dead Cells (PPSA15552).
The implementation validates null handles/output addresses and writes a
minimal Ngs2GeomAttribute: pitch_ratio 1.0, source position, source
volume/level maxima, and diagonal channel levels for the source's channel
count. It does not implement source attenuation, distance rolloff, panning
or Doppler.
The export lives in Geom.cpp's internal Ngs2GeomApply and is exposed through
the existing default-visibility wrapper in Voice.cpp. Unimplemented.cpp no
longer defines the stub. A passing test was added to Ngs2Geom.cpp.
Unblocks: PPSA15552 #<Game bring-up discussion number>
Depends on: none
AI assistance: yes
A concurrent scePsmlMfsrReleaseSharedResources could pass its "still used
by a context" check between the handle lookup and the context insertion.
The technical debt entry now says how KytyPS5's layout differs from the
calls in PPSA08330 and PPSA03016.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
scePsmlMfsrInit, the shared-resource calls and the 800M3_2 context calls
threw or answered "not initialized", so a title that sets PSSR up at
start-up stopped there even when it never uses PSSR on hardware without
it (PPSA08330 calls the setup unconditionally and only dispatches when
sceKernelIsTrinityMode is set, which AnyPS5 reports as 0).
The layouts come from the calls in PPSA08330 and PPSA03016: requirements
are {block bytes, alignment, block count}, handles are 8-byte values
written through the first argument, and a context parameter carries its
block list at 8/16 and the shared-resources handle at 0x38. Init sets
the initialized state, the requirements ask for four 2 MiB blocks (what
PPSA08330 allocates regardless of the returned count), and create and
release keep bookkeeping objects. Invalid arguments throw because their
error codes are unknown.
The 1100 calls, scePsmlMfsrCreateContext1300 and the 900/1000/1300
dispatch packets keep returning 0x8A810001 before Init and throw after
it; packet size, mip bias and capture still throw.
The guest test links libc and gets Windows unwinding so it can check the
refused calls.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
