Atari 2600 / F251
BEING VERIFIEDSTABLE IMMEDIATE BYTES NOW FETCH THEIR DATA ON CYCLE TWO
- STATUS
- BEING VERIFIED
- AREA
- Timing / bus
- RECORDED
- 2026-07-16
- PUBLIC SOURCE
- Research dossier / finding 251
- RECORD ID
atari2600-f251- SNAPSHOT
f114355884d03a2c
HYPOTHESIS: immediate operands are constants to the generated semantics, but the 6507 still reads their ROM byte on the external bus. Replacing that access with an aggregate two-cycle tick hides mapper side effects and scheduler order.
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