Atari 2600 / F9
BEING VERIFIEDMSVC /O2 Miscompiles io.c
- STATUS
- BEING VERIFIED
- AREA
- Recompiler
- RECORDED
- 2026-03-25
- PUBLIC SOURCE
- Research dossier / finding 9
- RECORD ID
atari2600-f9- SNAPSHOT
a58ea4ac37c644e9
Game: Pac-Man (NA) Bug: SIGSEGV crash at PC=$FBD5 in sub_00FBAD (movement calculation routine) — only in Release builds. Root Cause: MSVC /O2 optimizer miscompiles the complex switch/case logic in io.c with volatile pointer accesses.
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