A DMA or host store (psx_host_write_*) has no instruction hook, and
validation on read only rejects a shadow whose word changed. A writer
that stores the identical word left the old shadow believed, although
two projections that round to the same integer X/Y carry different
fractions and depth. memory.c now drops the shadow of every RAM or
scratchpad word a DMA or host store touches (pgxp_invalidate_word); the
drop is journaled, so a render pass rolls it back with its other writes.
pgxp_untracked_store_test drives the real memory.c store paths against
the real engine (fails 9 checks without the fix).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Preserve current segmented dispatch, active-plan mod hooks and software scale limits. Extend function filters through the active plan, retain the last-store pointer with overlay ABI 25, and keep default config fingerprints stable. Refresh BIOS emitter stamps after byte-identical regeneration and reconcile regression fixtures.
Shokunin