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
ddidderr
dd0299c30b