add sram memdomain to mgba

BizHawk.Emulation.Common/Base Implementations/MemoryDomainImpls.cs

@@ -83,6 +83,11 @@ namespace BizHawk.Emulation.Common
 				else
 					throw new ArgumentOutOfRangeException("addr");
 			}
+		}
+
+		public void SetSize(long size)
+		{
+			Size = size;
 		}
 
 		public MemoryDomainIntPtr(string name, Endian endian, IntPtr data, long size, bool writable, int wordSize)

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

@@ -42,6 +42,8 @@ namespace BizHawk.Emulation.Cores.Nintendo.GBA
 			public IntPtr vram;
 			public IntPtr oam;
 			public IntPtr rom;
+			public IntPtr sram;
+			public int sram_size;
 		}
 
 		[DllImport(dll, CallingConvention = cc)]

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

@@ -188,6 +188,8 @@ namespace BizHawk.Emulation.Cores.Nintendo.GBA
 			_vram.Data = s.vram;
 			_oam.Data = s.oam;
 			_rom.Data = s.rom;
+			_sram.Data = s.sram;
+			_sram.SetSize(s.sram_size);
 
 			// special combined ram memory domain
 
@@ -229,6 +231,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.GBA
 		private MemoryDomainIntPtr _vram;
 		private MemoryDomainIntPtr _oam;
 		private MemoryDomainIntPtr _rom;
+		private MemoryDomainIntPtr _sram;
 		private MemoryDomainDelegate _cwram;
 
 		private void CreateMemoryDomains(int romsize)
@@ -243,6 +246,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.GBA
 			mm.Add(_vram = new MemoryDomainIntPtr("VRAM", LE, IntPtr.Zero, 96 * 1024, true, 4));
 			mm.Add(_oam = new MemoryDomainIntPtr("OAM", LE, IntPtr.Zero, 1024, true, 4));
 			mm.Add(_rom = new MemoryDomainIntPtr("ROM", LE, IntPtr.Zero, romsize, false, 4));
+			mm.Add(_sram = new MemoryDomainIntPtr("SRAM", LE, IntPtr.Zero, 0, true, 4)); //size will be fixed in wireup
 			mm.Add(_cwram = new MemoryDomainDelegate("Combined WRAM", (256 + 32) * 1024, LE, null, null, 4));
 
 			MemoryDomains = new MemoryDomainList(mm);