NATIVE_FIRM and SAFE_MODE_FIRM for the initial versions are exactly the same, besides [[Configuration_Memory|core-version]] fields.
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NATIVE_FIRM and SAFE_MODE_FIRM for the initial versions are exactly the same, besides [[Configuration_Memory|core-version]] fields. When a GBA VC title is launched, AGB_FIRM is launched to handle running this title. GBA VC savegames stored under SD card /title/<TID>/data use a custom format, this is handled by AGB_FIRM.