From baa937b68f85e3710971b7450e0ad32c8d09a697 Mon Sep 17 00:00:00 2001
From: Vicki Pfau <vi@endrift.com>
Date: Fri, 22 Sep 2017 21:19:07 -0700
Subject: [PATCH] GBA Savedata: Fix size of SRAM saves (fixes #883)

---
 CHANGES                            | 1 +
 include/mgba/internal/gba/memory.h | 2 +-
 src/gba/cheats.c                   | 2 +-
 3 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/CHANGES b/CHANGES
index 620f08f78..b9592e7ea 100644
--- a/CHANGES
+++ b/CHANGES
@@ -28,6 +28,7 @@ Bugfixes:
  - GBA: Fix keypad IRQs not firing when extra buttons are pressed
  - GBA Video: Fix broken sprite blending hack (fixes mgba.io/i/532)
  - GBA I/O: Fix reading from a few invalid I/O registers (fixes mgba.io/i/876)
+ - GBA Savedata: Fix size of SRAM saves (fixes mgba.io/i/883)
 Misc:
  - Qt: Don't rebuild library view if style hasn't changed
  - SDL: Fix 2.0.5 build on macOS under some circumstances
diff --git a/include/mgba/internal/gba/memory.h b/include/mgba/internal/gba/memory.h
index 165d956d0..4e9839798 100644
--- a/include/mgba/internal/gba/memory.h
+++ b/include/mgba/internal/gba/memory.h
@@ -64,7 +64,7 @@ enum {
 	SIZE_CART0 = 0x02000000,
 	SIZE_CART1 = 0x02000000,
 	SIZE_CART2 = 0x02000000,
-	SIZE_CART_SRAM = 0x00010000,
+	SIZE_CART_SRAM = 0x00008000,
 	SIZE_CART_FLASH512 = 0x00010000,
 	SIZE_CART_FLASH1M = 0x00020000,
 	SIZE_CART_EEPROM = 0x00002000,
diff --git a/src/gba/cheats.c b/src/gba/cheats.c
index 2e1a30b54..c8a8f2c82 100644
--- a/src/gba/cheats.c
+++ b/src/gba/cheats.c
@@ -367,7 +367,7 @@ int GBACheatAddressIsReal(uint32_t address) {
 		return -0x8;
 	case REGION_CART_SRAM:
 	case REGION_CART_SRAM_MIRROR:
-		if ((address & OFFSET_MASK) > SIZE_CART_SRAM) {
+		if ((address & OFFSET_MASK) > SIZE_CART_FLASH512) {
 			return -0x80;
 		}
 		return -0x8;