DuckStation identifies its BIOS by MD5 in a folder it scans
(bios.cpp:208), so its entries' names are labels. The export wrote them
into Batocera's and ROCKNIX's lists as files to hold: a user with only
scph5501.bin read 104 missing BIOS where DuckStation boots. Labels also
lent their md5 to a name another core opens, and paired by name they
replaced System.dat's scph5000.bin hashes.
found_by: name | content, on a profile or a file and keyed by build like
load_from. The truth records which cores open each name (_named_by). A
label pairs with a platform entry by hash only, is never added, merges
with an opened name only on a shared hash, and is counted in the export
report rather than listed as missing.
A name the platform declares filed an entry under that system before
its own system:, and the last declaration of a name won. fmsx's 16 KB
DISK.ROM went to nec-pc-88 for quasi88's 2 KB disk.rom and came out as
a second DISK.ROM line under "NEC - PC-8801"; dosbox's SC-55
ROM1.BIN/ROM2.BIN went to galaksija.
A declaration now files an entry only when it can be the same file: a
shared hash, or no size both admit. The same content declared under two
systems is filed under both, an entry's own system stands against a
refuted homonym, and a systemless profile's placeholder takes only names
the platform does not declare. Merging reads the same size rule, so a
24 KB ROM and an entry capped at 16 KB stay two files.
The truth model merged a pathless entry into another core's entry of
the same name even when their contents disagreed, so the export wrote
one core's size next to the other core's md5.
Abdessamad Derraz