Game Boy / Game Boy Color / F022
BEING VERIFIEDMBC3 RTC selection and latch state must not alias external RAM
- STATUS
- BEING VERIFIED
- AREA
- Timing / bus
- RECORDED
- undated
- PUBLIC SOURCE
- Research dossier / finding 022
- RECORD ID
gb-f022- SNAPSHOT
a58ea4ac37c644e9
MBC3 types $0F-$13 now use a distinct 7-bit ROM-bank path and treat $08-$0C in the RAM/RTC select register as RTC registers rather than RAM banks. The bus models RAM/RTC enable, the 0 -> 1 latch edge, latched seconds/minutes/hours/day values, deterministic T-cycle advancement, halt, and day carry.
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