Poll the controller in port 1 once. The returned [`PadState`] always contains active-high buttons; in analog mode it also contains the four DualShock

Immutable access to port 1. Used by the frontend to read pad state (rumble motor) without having to mutate.

Add an empty floor stacked just above the current top floor's ceiling and return its index. The new floor copies the base footprint dimensions but sta

Rasterize a monochrome line using Redux's four-slope Bresenham walkers. The tie-breaks matter: `hello-gte`'s wireframe cube lands on many half-step di

Resolve authored far-vista values against room-local fog metadata.

Save to `<project_dir>/project.ron`, retargeting the project directory when the user-facing project name changes.

Update the buttons currently held on the port-1 controller. Called by the frontend each frame from the keyboard state.

Slot index currently mapped to `key` in any non-empty state, validated against the forward store (so a stale reverse entry never lies).

Submit a projected textured Gouraud triangle after the caller has already applied the desired winding/cull policy.

Prepacked words for textured Gouraud triangle packet emission.

Walk `cmd_log`, return the vertex stream for this frame laid out as one slice per `BlendKind`. The slices borrow from `self`; copy out before the next

Underlying byte-level view. Borrow it when you need the raw slice access (validation, debug dump, …).

Shared Shift-range / toggle / replace multi-selection over an ordered list. Mutates `set` and `anchor` in place and returns the new primary selection

Set this wall's V span so texel density follows the world grid: `TILE_UV` texels cover one sector-height. The wall geometry is not changed. Returns `

Target address for a conditional branch. The 16-bit immediate is sign-extended and shifted left by 2, then added to the delay slot's PC (`pc + 4`).

Build a sector-aligned world package from already-cooked chunks. Format: - fixed header: magic, version, chunk count, total sectors, header sectors,

Ceiling corner heights `[NW, NE, SE, SW]` for vertex emission.

`true` if the ceiling split triangle is present.

World-space bounds of a sector cell rooted at world `(0, 0)`. Returns `(x0, x1, z0, z1)` so individual quads can pick the corners they need by index.

Reset VRAM to all zeros (matches CPU `Vram::new`). Done on the GPU side via `clear_buffer` -- no host roundtrip.

Zero the optional BSS range declared by a PSX-EXE header. The BIOS clears this area before jumping to the executable; side-load and fast-boot paths n

Send a command and return its first response packet.

Drive the CPU rasterizer through a GP0 textured-triangle packet. Caller has already set draw area + uploaded VRAM.

Run the CPU rasterizer for a monochrome triangle, optionally with semi-trans / mask flags pre-configured. Returns the full row-major VRAM snapshot for

Enqueue a batch of stereo samples from the CDROM -- either CD-DA (Red Book) or decoded XA ADPCM. Consumed one sample per SPU output sample during `tic

FNV-1a-64 over any number of input slices, rendered as a 16-hex-char string. Same algorithm the parity-cache uses -- no adversarial input, just a stab

Fetch row `r` of glyph `i` as 4 bytes LSB-packed little- endian -- the row comes out as a `u32` with pixel 0 in bit 0, pixel 1 in bit 1, … up to pixel

One UI update tick with no buttons held, so focus seeds without triggering any action. Render is the GPU draw path and cannot run in a host unit test

Borrow the raw 128 KiB image (for persisting to a host file).

`true` when `ancestor` appears anywhere on the parent chain of `id`. Includes `id` itself, matching [`Scene::is_descendant_of`].

Return whether this projection can be consumed by a textured primitive.

On DataReady event firing: populate the data FIFO with the next sector's user data and bump the read LBA. When the sector's subheader marks it as an X

glTF matrices are column-major. Keep the same representation here: m[column][row].

Multiply another Q12 scalar, returning Q12.

`delta * amount / sector` without overflowing the intermediate product: the whole and remainder parts of `delta / sector` scale separately, so the par

Current project document.