The same raw Div32 pattern used by the item animation appears in every nested
idle phase: after division by 32, 40, or 16, the binary copies the remainder
from CX:BX before the second division. Readable C and Rust used quotients for
targets, word quads, the record strip, and the four-point chase, turning short
repeating chases into slow one-shot progressions.
Use `%32/2`, `%32/4`, `%40/4`, and `%16/4` for those cycles alongside the
already corrected `%144/8` items. Preserve the first-cycle phase-zero delay,
then repeat each incremental overlay state exactly. Add C and Rust coverage at
phase activation, reversal, deactivation, and wrap boundaries.
Test Plan:
- raw instruction review at `1000:01b7-063b` -- all remainder transfers confirmed
- `cargo test --workspace --all-targets --all-features` -- 125 passed
- `cargo clippy --workspace --all-targets --all-features -- -D warnings` -- passed
- `bash original/tools/test_reconstructed_c.sh` -- passed
- `python3 original/tools/audit_reconstruction.py --require-complete` -- passed with zero incomplete or unclassified units
- `cargo run -- --simulate attract --step 145 --screenshot /tmp/tdkpin-attract-remainder.png` -- passed; visually inspected at 640x460
- `rumdl check --flavor commonmark RECONSTRUCTION.md CHANGELOG.md` -- passed
- `git diff --cached --check` -- passed
Raw 1000:061c-063b divides the idle tick by 144, copies the remainder from
CX:BX into AX:DX, and only then divides by 8. Readable C and Rust instead used
an unbounded quotient equivalent to tick/1152, making DAT801-809 advance far
too slowly and suggesting a nonexistent negative long-idle index.
Use `(tick % 144) / 8` to repeat item states 0,1..9,8..1 every 144 callbacks.
Remove the disproven long-idle status crops and restore the ten-minute simulator
ceiling. Extend the C and Rust phase tests across the forward, reverse, and wrap
boundaries.
Test Plan:
- raw instruction review at `1000:061c-063b` -- remainder transfer confirmed
- `cargo test --workspace --all-targets --all-features` -- 125 passed
- `cargo clippy --workspace --all-targets --all-features -- -D warnings` -- passed
- `bash original/tools/test_reconstructed_c.sh` -- passed
- `python3 original/tools/audit_reconstruction.py --require-complete` -- passed with zero incomplete or unclassified units
- `rumdl check --flavor commonmark RECONSTRUCTION.md CHANGELOG.md` -- passed
- `git diff --cached --check` -- passed
Replace the partial mechanics transcriptions with a separate, readable C11
reconstruction of the complete Win16 image while preserving the original raw
Ghidra export as immutable evidence. Cover all ordinary and overlapping entry
points, Borland runtime behavior, Win16 imports, segmented data, callbacks,
resources, indirect control flow, physics, rendering, persistence, and
startup/shutdown lifecycles.
Add deterministic extraction and audit tooling plus address-linked ledgers for
functions, imports, DGROUP ranges and objects, relocations, resources, and
callbacks. The final gate records zero raw, partial, restored, unknown,
blocked, or unclassified required units. Keep the semantic-fidelity boundary
explicit: the portable C is not claimed to reproduce a byte-identical Borland
NE build.
Add strict focused harnesses for every reconstructed C unit, exact resource
round-trip checks, and a 16-bit Borland Real48 reference probe. No Rust source
or Cargo metadata is changed in this phase.
Test Plan:
- `bash original/tools/test_reconstructed_c.sh` -- passed
- `bash original/tools/probe_real48_reference.sh` -- passed bit-for-bit
- `python3 original/tools/audit_reconstruction.py --require-complete` -- passed
- `git diff --cached --check` -- passed
- `git diff HEAD -- '*.rs' Cargo.toml Cargo.lock` -- empty
ddidderr