From b5cbd557189b7fe046afba606e9f2a93ec41081d Mon Sep 17 00:00:00 2001
From: Jeffrey Pfau <jeffrey@endrift.com>
Date: Thu, 18 Apr 2013 00:58:42 -0700
Subject: [PATCH] Read back I/O memory when reading 32-bit

---
 src/gba/gba-memory.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gba/gba-memory.c b/src/gba/gba-memory.c
index ff79ef366..1960149cd 100644
--- a/src/gba/gba-memory.c
+++ b/src/gba/gba-memory.c
@@ -113,7 +113,7 @@ int32_t GBALoad32(struct ARMMemory* memory, uint32_t address) {
 	case BASE_WORKING_IRAM:
 		return gbaMemory->iwram[(address & (SIZE_WORKING_IRAM - 1)) >> 2];
 	case BASE_IO:
-		break;
+		return GBAIORead(gbaMemory->p, address & (SIZE_IO - 1)) | (GBAIORead(gbaMemory->p, (address & (SIZE_IO - 1)) | 2) << 16);
 	case BASE_PALETTE_RAM:
 		break;
 	case BASE_VRAM: