Crimson Desert (PPSA25286) calls scePadSetVibrationMode(handle, 5)
at start-up, and main rejects any mode above 3 with
SCE_PAD_ERROR_INVALID_ARG (0x80920001). The title then carries on
with the call failed.
The modes are not documented. SharpProspero names 1 (advanced) and 2
(compatible); mode 3 was accepted for PPSA21480. The call now also
accepts 5, which a shipped title passes, and keeps rejecting the values
no title has been seen to use (4, 6 and above). The mode is stored as
before and has no other effect.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
sceSysmoduleGetModuleInfoForUnwind called VirtualQuery and GetMappedFileNameA on every call. VirtualQuery on a large image section costs time proportional to the section (2 us for 16 KiB, 51 us for 8 MiB, 167 us for 32 MiB), and a title that unwinds exceptions while loading calls it for every frame of every throw.
The region and file name of an address inside an image of the Windows loader's module list are kept per region and used while the loader still reports the same image (base, time stamp and size). Other addresses are queried every time.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
ds_add_f32 and ds_add_rtn_f32 now follow the measured hardware: both
operands are flushed to a signed zero when bit 0 of the f32 denormal field
is clear and the result when bit 1 is clear, the sum is rounded to nearest
even, a NaN data operand is stored quieted, else a NaN old value is stored
quieted, and +inf + -inf stores 0xffc00000. Measured on gfx1010 and, in
#5492, on gfx1031.
The new MemoryInfo field is stored in the shader disk cache (field count
31, minimum record 79 bytes, FormatVersion 34). The parts that depend only
on the data operand are computed once, before the CAS loop.
Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
The Windows error for a refused FindFirstChangeNotification was one string shared
by WatchParent and WatchContents, so the log could not tell which handle or path
was denied. Build it from the watcher, the path the API was given and
GetLastError instead.
Still throws: the EVFILT_VNODE attach path is vfs_kqfilter, which returns only
EINVAL, ENOMEM or 0, with EBADF from fget before it, and consults no directory
permission, so no FreeBSD errno stands for a host that refuses to notify.
Preserve instance and triangle order with one dynamic-reference shader pipeline. Require bounded references, complete export coverage, replay-safe mask control and resources; refuse unsupported side effects and feedback.
Co-Authored-By: Codex <[email protected]>
A draw with PA_SC_AA_CONFIG.MSAA_NUM_SAMPLES > 0 and
PA_SC_MODE_CNTL_0.MSAA_ENABLE clear threw. On GFX10 and later the bit
is what makes the rasterizer use the programmed sample locations; with
it clear the draw now keeps the target's sample count with every sample
at the pixel center. Points, lines, a depth target and
alpha-to-coverage still throw.
Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
The front-face VGPR was always +1.0 / -1.0, which is its form only while
FRONT_FACE_ALL_BITS is clear (current Mesa reads it with fgt 0 / fsign).
With the bit set, as Mesa 22.0 RADV programs it, a back face reads 0 and
a front face non-zero: ACO then tests it with v_cmp_lg_u32 0. Uncharted:
Legacy of Thieves Collection (PPSA05684) sets the bit and its two-sided
cloth shaders test v_cmp_lt_u32 0, so -1.0 (0xbf800000) made every back
face a front face: the insides of the menu skeleton's rags kept their
front normals and were lit white by the spot light behind them.
The pixel stage info now carries the bit (request version 26, cache and
draw keys), the decode reads SPI_BARYC_CNTL when FRONT_FACE is an active
input, and the translator turns the builtin into 0xffffffff / 0. The
exact front value is not measured (docs/dev/debt/shader.md).
AI-assisted: yes
On ds_ordered_count M0 holds the ordered wave ID, not a GDS address as
for ds_append: radeonsi and ACO pass the wave ID as the intrinsic's
pointer and keep the counter address in offset0. Reading M0 as the base
and size skipped the add whenever M0[15:0] was 0, so every wave got the
same range. The test now runs the ordered pass with M0 = 0 and M0 = 7.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
ds_ordered_count adds the first active lane's value to a GDS counter and
returns the previous value, like ds_append adds the lane count. Waves are
not serialized in launch order: each still gets its own range. Ordered
swap and multi-dword counts stay refused. DISPATCH_DIRECT and
DISPATCH_INDIRECT accept ORDERED_APPEND_ENBL (bit 3) of the initiator.
Compute shaders of MXGP 26 (PPSA30839) use both.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
VGT_TF_PARAM.PARTITIONING 3 now compiles to Vulkan's fractional-even
spacing, which radeonsi programs as PART_FRAC_EVEN. Its factors are
bounded at 64 like integer partitioning; Vulkan raises the remaining
ones to at least 2, the D3D11 range for this mode.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Since 794714983 every fiber ran on an mmap'd host stack so that host calls
cannot overrun the small contexts PPSA01341 packs next to each other. A
title that derives state from the stack pointer then reads the wrong
memory: PPSA05684's job fibers have 512 KiB contexts at 1 MiB-aligned
addresses and find their job record by masking rsp with ~0xfffff, so the
job system lost track of a GameInit job and the game waited forever
right after loading big4r/actor76.txt. Its 64 KiB fibers fault later on
a host stack too.
A fiber now gets a host stack only when its context is smaller than
64 KiB; a larger context is the stack again, as on the console. The
limit sits between the 16 KiB contexts that need protection and the
64 KiB ones that need the guest stack (technical debt entry). The fiber
test runs a 512 KiB fiber and checks that its stack is in its context;
it fails without this change.
AI-assisted: yes
The signature (uint32_t service label, const NpUnifiedEntitlementLabel*,
progress*) follows SharpProspero Interop/AppContent/AppContent.cs.
dlc_emu dlc_content.cpp (fcf69b16) answers PARAMETER for a null label or
progress and NOT_FOUND for a label that is not installed additional
content. No additional content is ever installed here, as
sceAppContentAddcontMount, sceAppContentAddcontEnqueueDownload and
sceAppContentAddcontDelete already model, so every other call answers
NOT_FOUND and the progress, whose 16-byte layout SharpProspero gives,
is never written.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
