Three things this session that are cheap to rediscover wrongly and
expensive to rediscover wrongly twice.
The core index interleaves single-word region offsets with count/offset
pairs, so gs_ram and the three class tables are two words each while
tfrags..collision are one. Treating the pairs as single words shifts
every field after them, which is how collision got read as sky and
produced a page of implausible collision headers on all 27 levels.
Sky is not uniform. Most levels share a header shape, but level 2 carries
extra fields and the count word at +0x0a over-reports against the number
of real offset slots, so no single fixed header fits.
Moby geometry starts with zero words rather than a header and then packed
half-float VIF data. Not decoded; recorded so the next attempt starts
from the data instead of re-deriving the layout.
ReaperOfVeriod
1f96ef09b9