M CHANGES → CHANGES

@@ -24,6 +24,7 @@ - GBA Memory: Improve gamepak prefetch timing
  - GBA Memory: Stall on VRAM access in mode 2 (fixes mgba.io/i/190)
  - GBA SIO: Fix copying Normal mode transfer values
  - GBA SIO: Fix Normal mode being totally broken (fixes mgba.io/i/1800)
+ - GBA SIO: Fix deseralizing SIO registers
  - GBA Video: Latch scanline at end of Hblank (fixes mgba.io/i/1319)
  - GBA Video: Fix Hblank timing
  - GBA Video: Invalidate map cache when modifying BGCNT (fixes mgba.io/i/1846)

M src/gba/io.c → src/gba/io.c

@@ -980,6 +980,8 @@ LOAD_32(gba->memory.dma[i].nextCount, 0, &state->dma[i].nextCount);
 		LOAD_32(gba->memory.dma[i].when, 0, &state->dma[i].when);
 	}
 	GBAAudioWriteSOUNDCNT_X(&gba->audio, gba->memory.io[REG_SOUNDCNT_X >> 1]);
+	gba->sio.siocnt = gba->memory.io[REG_SIOCNT >> 1];
+	GBASIOWriteRCNT(&gba->sio, gba->memory.io[REG_RCNT >> 1]);
 
 	LOAD_32(gba->memory.dmaTransferRegister, 0, &state->dmaTransferRegister);
 	LOAD_32(gba->dmaPC, 0, &state->dmaBlockPC);