2648 - Provenance — ContextQMD

blueMSX Core Bridge — Full controls bridge for blueMSX including joystick, keyboard (via libretro HID pipeline), and mouse support; adds PVblueMSXEmuCore Swift wrapper mirroring fMSX architecture

fMSX Button Mapping — MSX joystick buttons now correctly map to RETRO_DEVICE_ID_JOYPAD_* constants; reset maps to L, leftDiff/rightDiff map to L2/R2 matching the established libretro MSX mapping
RetroPad Buffer Overflow — Expanded _pad buffer in PVLibRetroCoreBridge from 12 to 16 entries to cover the full RetroPad button range including L2/R2 (indices 12–13)