When the region's file is absent, libretro.c (7fea57a5) finds no name and no matching sha1, then maps its built-in OpenBIOS (libretro.c:3425-3511). The region runs show it: each region's disc reaches its game with only the other regions' BIOS staged, under the oracle's reference frames (records 2026-10-27-55dd1e4943c4, 13be0e68b799, 33780d47efdf). scph5500.bin, scph5501.bin and scph5502.bin are required: false, hle_fallback stays true. Written through campaign_profiles.
Every reference block's run, judged again with the oracle as committed, boots in each repetition. Beetle Saturn's three BIOS lines are BIOS errors, the Japanese menu screens are error screens, and the PlayStation cores carry no error pattern.
Every value a run produced (claim, method, statement, host, flags, variant labels, core, content and file names) is escaped with quotes and its braces made inert for MDX, never read as Markdown. A record link is written only for an http(s) or relative target. Reference runs fold with the tests from before the oracle.
Puzzle Bobble 2 (Japan) and Bust-A-Move 2 (Europe) on the PlayStation cores, and the three Saturn editions on Beetle Saturn, each frame reviewed on its PNG. Beetle Saturn's BIOS error lines, read from ss.c, are its error patterns.
The first runs showed it: beetle_psx reaches the game of the US disc on the Japanese and European BIOS, through a different licence screen, so its frames differ from the full run while the oracle says boots. The interim rule read those frames as a failure. A variant now boots on the same frames as the full run or by its oracle verdict, and otherwise has no answer.
The sandbox bound only /usr, /lib and /bin. On the CI runner setup-python puts Python under /opt/hostedtoolcache, so the worker could not start and every core_probe and campaign run crashed (7 tests, plus their replay without jsonschema). A venv, pyenv or uv do the same. The interpreter's prefix and every link on the way to it are now bound read-only, each at its own path. Reproduced with uv's Python 3.13 outside /usr, 92 tests pass under it and under the system Python.
Merging the card and platform branches left two SHORT_HASH definitions, 8 and 12. The later one silently won, so the platform rows showed 12 characters while their tests expected 8. One constant now, 12, the card anchor's length. The copy-button selector skips buttons that carry their own data-copy, and the tests follow the merged markup.
Each file is a details whose summary is the row: name, folder when it is not the bare name, status chip. The short hash sits on one copy button beside it, since a summary is itself a control. Opened, the evidence runs across the list. A list with no folder drops the column. Code spans in the evidence are plain text.
The lists split by the share of a page they render to (elements against 10,000, bytes against 600,000) instead of Markdown length. With its parts, Batocera goes from 12 pages, 18,854 elements and 1.21 MB to 10 pages, 13,671 and 1.11 MB. A part that folds back into its platform page redirects there, from the record in website/src/data/platform-parts.json.
A finding line is written again when the records behind it change, so an open finding cites the oracle runs rather than a frame comparison. A contradicted validation shows the checks the runs prove, content and size, beside the profile's list.
MAME's card pages, GroovyMAME and yaps2 read 13,000 to 16,700 words of
cards. Each entry is now a table row (name, members, status, short
hash) that opens to its card in a details block, with the site's filter
box and row counter. Pages from 150 entries and every split part use it.
Visible words: mame-files-1 16,680 to 1,612, groovymame 14,396 to 1,876.
A row costs about five elements, so a part holds 180 cards: MAME goes
from 8 parts to 9, the largest at 567 KB and 8,989 elements.
Each wanted list (TOSEC, No-Intro, Redump) opens on its counts, then one
table folded under a filter box that opens it, in place of a block per
DAT. Only the names are searched: indexed descriptions and hashes put
the PlayStation page ahead of the PlayStation 2 one.
A filtered row stayed visible on a phone: a stacked row's display:block
outweighed the hidden attribute on every stacked table.
standalone_probe now holds the host probe lock for one run, its load check included, as core_probe does, and the docs no longer wrap region_check or standalone_probe in flock.
The install box's select had a rule of its own that dropped the arrow
and read as a text field. It now takes the shared select rule and
--rb-select-arrow in both themes.
core_probe takes probe.lock itself around one execution, load check included, and releases it when the run ends. A campaign pass never holds it between runs, so two passes interleave. RETROBIOS_PROBE_LOCK names another file, RETROBIOS_PROBE_LOCK_HELD says the caller holds it. Tests use their own lock file.
System and emulator file cards show the name, size, download, a short
SHA1 with a copy button, the setups and the emulators. The full hashes
and the other facts sit in one closed fold, each hash with a copy button.
A system's install box shows one command under the OS tabs for the
setup picked in a list, remembered across pages. Without the script the
list of every command shows, open. The Markdown the page budgets are
measured on is unchanged, so no card moves.
Each file of a platform list is one row: name, folder, status chip, a short hash on a button that copies it whole, and a details cell. The details hold every declared hash, the size, the served copy and the readers. A reference's role is one word (glue, port, upstream, build) defined once in a legend instead of a phrase after every reference.
Visible words: Batocera 2,433 to 2,332, AmberELEC 1,301 to 1,299, RomM 1,607 to 1,596, RetroArch 2,207 to 2,088, RetroDECK arcade part 2 19,127 to 2,104. Rows weigh more Markdown, so 38 more systems move to pages of their own under the existing budgets.
Rows sit under the file under test. A title names the game and what sets the test apart from the others of its file (build, clock, region, files tried), never cut. Zero counts leave the summary. A legend explains the dots. The chips say depends on the file and same with every file. Ran on shows the short host.
The Tested block opens on one summary line, then a row per test: a short title, a result chip, a dot per variant and the date. Method, claim, computer, core build and the record wait in the row's details. Tests from before the boot oracle fold under one line, benchmarks get their own table. beetle_saturn shows under 120 words before anything is opened.
Pins and launcher index recomputed for the merged install.py. Mouse modes are now written before the frame, so a screen read back already takes clicks.
core_version is a string the code states, null or keyed by build mode,
and the schema refuses Git, SVN, unknown, master, main, latest, dev and
HEAD, alone or annotated. version_basis is defined per kind with the
fields each one needs, and kind none requires a null version.
tests/test_version_basis.py reads a recorded fixture of forge answers
offline and fails on drift, holds every profile to a basis (tag versions
in describe form, aliases equal to their profile, none as null), checks
that a pin advance reads the version again or is refused, and that the
schema refuses placeholders.
The installer reads the version the system states in its own file,
without running anything: batocera.version, recalbox.version (a release
only), RetroBat's system/version.info, VERSION_ID in os-release on Lakka
and EmuELEC. When it differs from the version the list was built for, a
line says so before the install and again with the result, and the new
version event carries it for the screen. An unknown version says
nothing, and the install never stops on it.
install/<platform>.json wrote the constant "1.0" as the version of the
list it was built from. The manifest now carries the version the platform
YAML records, and generate_pack refuses a YAML without one.
inherits: no longer passes a parent's version to a child: Lakka was
published as RetroArch v1.22.2 in its manifest, pack name and site page.
lakka.yml records v6.1, the Lakka-LibreELEC tag its target list is read
at. The MiSTer scraper refuses a BiosDB without a timestamp instead of
writing an empty version.
A pack's manifest.json records list_version, so an install from the pack
alone knows it too. Manifests regenerated twice and compared: only
version and generated changed.
Modes 1000 and 1006 only, SGR and legacy reports decoded, a hit map built from each drawn frame, action on release. Off on every way out, on the screens whose text is copied, with a pad route or RETROBIOS_NO_MOUSE.
The run header, the menu, its game data split and g, the plan, the
screen's plan and game data row and both results now divide one tally
of the list the run keeps. Case variants were counted on the run and
missing from the screen's split, g counted the whole list under a head
narrowed by c, and the result left out the data tree files. The wiki
examples come from real runs of 2026-10-27.
The FAQ table of arcade romsets was typed by hand and told readers to
collect MAME 0.160 and FinalBurn Neo 1.0.0.2 sets for cores whose source
states 0.159 and 1.0.0.03. generate_site now writes it between generated
markers from the profiles, and a test holds the page to the generator.
An emulator page names where its version is read (the file, the tag and
the commits after it, the package), and says when the code states none
or the version could not be confirmed. HBMAME no longer claims a MAME
romset. tools.md and profiling.md document version_basis and the two
modes.
FBNeo bumps src/burn/version.h without tagging: the scraper wrote the
last tag, v1.0.0.02, while the source said 1.0.0.03. It now reads the
header the way the libretro core prints it. The merge no longer writes
core_version: the hashes come from finalburnneo/FBNeo's tip, which the
libretro/FBNeo pin does not name, so the version stays the one
version_basis reads at that pin. A MAME release profile is written with
its version_basis.
version_basis says where a profile's version is read: a pattern in a
file, the nearest tag and its distance, an alias, a package, none, or
unverified with the reason. profile_sync --verify-version reads it again
at the pin and exits 1 on a difference, --set-version writes what the
code states. A pin advance reads the version at the new pin in the same
write and is refused when it cannot.
upstream.describe counts the commits after the nearest tag in a treeless
clone kept under the cache, and graph_ancestry answers a pair GitHub
refuses to compare.
Ubuntu 24.04 blocks the unprivileged user namespaces bubblewrap needs, so the campaign refused to run the fake cores and four FakeCorePasses tests failed, also inside the no-jsonschema replay. CI now installs bubblewrap, lifts the AppArmor restriction and proves a sandbox starts. Locally the tests name the missing sandbox instead of failing on a KeyError.
One table of roles from the 16 basic colours (accent, success,
warning, failure, muted, strong, selected) read by the full screen and
by the end of a line-mode run. Status words take their role from one
pattern table, the text never changes, and colour is off with NO_COLOR,
TERM dumb or unset, a terminfo entry naming fewer than 8 colours, or an
output that is not a terminal.
Colour goldens keep the escape codes, and a test strips them back to
the text goldens.
core_probe refuses to record above its load threshold. region_check gave up on the first refusal, so twelve runs ended at once on a host still busy from the previous run. It now tries a refused run again every 15 seconds for up to --max-load-wait seconds, the threshold unchanged.
Abdessamad Derraz