M src/platform/libretro/libretro.c → src/platform/libretro/libretro.c

@@ -171,9 +171,8 @@ if (!GBAIsROM(rom)) {
 		return false;
 	}
 
-	// TODO
-	save = 0;
-	savedata = 0;
+	savedata = malloc(SIZE_CART_FLASH1M);
+	save = VFileFromMemory(savedata, SIZE_CART_FLASH1M);
 
 	GBALoadROM(&gba, rom, save, game->path);
 	ARMReset(&cpu);
@@ -232,15 +231,29 @@ return false;
 }
 
 void* retro_get_memory_data(unsigned id) {
-	// TODO
-	UNUSED(id);
-	return 0;
+	if (id != RETRO_MEMORY_SAVE_RAM) {
+		return 0;
+	}
+	return savedata;
 }
 
 size_t retro_get_memory_size(unsigned id) {
-	// TODO
-	UNUSED(id);
-	return 0;
+	if (id != RETRO_MEMORY_SAVE_RAM) {
+		return 0;
+	}
+	switch (gba.memory.savedata.type) {
+	case SAVEDATA_AUTODETECT:
+	case SAVEDATA_FLASH1M:
+		return SIZE_CART_FLASH1M;
+	case SAVEDATA_FLASH512:
+		return SIZE_CART_FLASH512;
+	case SAVEDATA_EEPROM:
+		return SIZE_CART_EEPROM;
+	case SAVEDATA_SRAM:
+		return SIZE_CART_SRAM;
+	case SAVEDATA_FORCE_NONE:
+		return 0;
+	}
 }
 
 void GBARetroLog(struct GBAThread* thread, enum GBALogLevel level, const char* format, va_list args) {