Atari 2600 / F219
BEING VERIFIEDSTX'S Y INDEX IS STILL ZERO-PAGE WIDTH
- STATUS
- BEING VERIFIED
- AREA
- Memory / cartridge
- RECORDED
- 2026-07-15
- PUBLIC SOURCE
- Research dossier / finding 219
- RECORD ID
atari2600-f219- SNAPSHOT
d8dcf6d8dd492341
HYPOTHESIS: STX stores X without changing registers or P. Its zero-page-Y form wraps modulo 256, while its three-byte absolute form retains the full address; both distinctions must survive IR and generated C.
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