dang it, do a better job adding sram memdomain to vbanext

BizHawk.Emulation.Cores/Consoles/Nintendo/GBA/LibVBANext.cs

@@ -175,6 +175,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.GBA
 			public IntPtr rom;
 			public IntPtr mmio;
 			public IntPtr sram;
+			public int sram_size;
 		}
 
 		// this isn't used directly at the moment.  but it could be used for something eventually...

BizHawk.Emulation.Cores/Consoles/Nintendo/GBA/VBANext.IMemoryDomains.cs

@@ -23,7 +23,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.GBA
 			mm.Add(MemoryDomain.FromIntPtr("VRAM", 96 * 1024, l, s.vram, true, 4));
 			mm.Add(MemoryDomain.FromIntPtr("OAM", 1024, l, s.oam, true, 4));
 			mm.Add(MemoryDomain.FromIntPtr("ROM", 32 * 1024 * 1024, l, s.rom, true, 4));
-			mm.Add(MemoryDomain.FromIntPtr("SRAM", 128 * 1024, l, s.sram, true, 4));
+			mm.Add(MemoryDomain.FromIntPtr("SRAM", s.sram_size, l, s.sram, true, 4));
 
 			mm.Add(new MemoryDomainDelegate("System Bus", 0x10000000, l,
 				delegate(long addr)

vbanext/instance.cpp

@@ -13443,7 +13443,29 @@ template<bool isReader>bool SyncBatteryRam(NewState *ns)
 		mem.rom = rom;
 		mem.vram = vram;
 		mem.oam = oam;
+		switch (cpuSaveType)
+		{
+		default:
+		case 0: // auto
 			mem.sram = flashSaveMemory;
+			mem.sram_size = 0x10000;;
+			return;
+		case 1:
+		case 4: // eeprom
+			mem.sram = eepromData;
+			mem.sram_size = eepromSize;
+			return;
+		case 2: // sram
+			mem.sram = flashSaveMemory;
+			mem.sram_size = 0x10000;
+			return;
+		case 3: // flash
+			mem.sram = flashSaveMemory;
+			mem.sram_size = flashSize;
+			return;
+		case 5: // none
+			return;
+		}
 	}
 
 	void BusWrite(u32 addr, u8 val)

vbanext/instance.h

@@ -28,9 +28,10 @@ struct MemoryAreas
 	void *palram;
 	void *vram;
 	void *oam;
-	void *sram;
 	void *rom;
 	void *mmio;
+	void *sram;
+	uint32_t sram_size;
 };
 
 #define FLASH_128K_SZ 0x20000