CGB bank selectors must not be modeled as flat memory

The native Game Boy state now owns dual VRAM and banked WRAM storage. CGB VBK/SVBK writes route CPU-visible VRAM/WRAM accesses, zero SVBK selects bank 1, and DMG mode reads the selectors as inactive.

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