Atari 2600 / F99
BEING VERIFIEDPHP/PLP were flag no-ops; Pac-Man's maze-row parity died in transit
- STATUS
- BEING VERIFIED
- AREA
- CPU
- RECORDED
- 2026-06-11
- PUBLIC SOURCE
- Research dossier / finding 99
- RECORD ID
atari2600-f99- SNAPSHOT
a58ea4ac37c644e9
The lifter pushed/pulled a dead r_flags vreg; the materialized model (ucmp carry, cmp_result N/Z, decimal_mode, overflow_flag) was never packed/unpacked. Pac-Man computes its legal-move table index as (X>>2) + 0x28*(row&1), preserving row parity in CARRY across two LSRs via PHP/PLP ($FBC5-$FBCE).
Raw traces, ROM material, local paths, and personal data are not part of this public record.
01INPUT IDhash receipt
02BYTE MAPdecode coverage
03CPU STATEtrace comparison
04BUS / TIMEordered effects
05OUTPUTvisual · audio · input
06ARTIFACTbuild identity