M CHANGES → CHANGES

@@ -13,6 +13,7 @@ - GBA Memory: Fix OOB ROM reads showing up as AGBPrint memory
  - GB Serialize: Fix loading states with negative pixel x (fixes mgba.io/i/1293)
  - Qt: Fix audio context holding onto closed game controller
  - Switch: Fix gyroscope orientation (fixes mgba.io/i/1300)
+ - GBA SIO: Prevent writing read-only multiplayer bits
 Misc:
  - GBA Savedata: EEPROM performance fixes
  - GBA Savedata: Automatically map 1Mbit Flash files as 1Mbit Flash

M src/gba/sio.c → src/gba/sio.c

@@ -164,6 +164,7 @@ value &= ~0x0080;
 			}
 			break;
 		case SIO_MULTI:
+			value &= 0xFF83;
 			value |= 0xC;
 			break;
 		default: