Atari 2600 games (with .a26 extension) don't seem to be supported correctly when running with Stock Emulators, as it starts the Intellivision core (FreeIntv). The stella2014_libretro core in RetroArch is outdated and doesn't support Atari 2600 roms that use ARM chip. Please use the 1.2/1.3 Stock...
If the Rockchip Batch Tool shows you the error "Check Chip Fail", then please download the latest RKDevTool v2.79 from Rockchip's gihub repository --> /rockchip-linux/tools/tree/master/windows/ --> RKDevTool_Release_v2.79.zip
(sorry, as new member I'm not allowed to paste the URL here)
After...