REFORGE
Atari 2600 / F203
BEING VERIFIED

RRA'S ROTATE-OUT BIT IS ADC'S CARRY-IN

STATUS
BEING VERIFIED
AREA
Recompiler
RECORDED
2026-07-15
PUBLIC SOURCE
Research dossier / finding 203
RECORD ID
atari2600-f203
SNAPSHOT
d8dcf6d8dd492341

HYPOTHESIS: each stable RRA form performs one memory ROR through the incoming carry, stores that rotated byte, then executes the NMOS ADC contract using the ROR carry-out. No flag refresh may intervene: ADC replaces the rotate's temporary N/Z/C state with its final C/V/N/Z.

Raw traces, ROM material, local paths, and personal data are not part of this public record.