# PHLEGM v4 NES CPU identity correction

The NTSC NES machine now identifies its processor as the Ricoh RP2A03, not as a MOS 6502.
The RP2A03 contains a 6502-derived CPU core, but it is a distinct Ricoh system chip with integrated APU/DMA/controller I/O behavior and no decimal arithmetic mode.

Canonical PHLEGM v4 definition paths:
- cfg/chipset/2A03/Ricoh-RP2A03/
- cfg/support/apu/Ricoh-RP2A03-APU-IO/

NES-NTSC now declares cpu_family=2A03 and cpu_variant=Ricoh-RP2A03.
The opcode compatibility declaration remains MOS-6502-official because that describes the executable instruction-set lineage, not the identity of the physical NES processor.
