M src/gb/gb.c → src/gb/gb.c

@@ -81,12 +81,13 @@ gb->memory.romSize = gb->pristineRomSize;
 	gb->romCrc32 = doCrc32(gb->memory.rom, gb->memory.romSize);
 	gb->sramVf = sav;
 	if (sav) {
-		if (sav->size(sav) < 0x8000) {
-			sav->truncate(sav, 0x8000);
+		// TODO: Do this in bank-switching code
+		if (sav->size(sav) < 0x20000) {
+			sav->truncate(sav, 0x20000);
 		}
-		gb->memory.sram = sav->map(sav, 0x8000, MAP_WRITE);
+		gb->memory.sram = sav->map(sav, 0x20000, MAP_WRITE);
 	} else {
-		gb->memory.sram = anonymousMemoryMap(0x8000);
+		gb->memory.sram = anonymousMemoryMap(0x20000);
 	}
 	return true;
 	// TODO: error check

M src/gb/memory.c → src/gb/memory.c

@@ -419,6 +419,11 @@ break;
 	case 0x1:
 		_switchBank(memory, bank);
 		break;
+	case 0x2:
+		if (value < 0x10) {
+			_switchSramBank(memory, value);
+		}
+		break;
 	default:
 		// TODO
 		mLOG(GB_MBC, STUB, "MBC5 unknown address: %04X:%02X", address, value);