When J2 is connected and all switches are off then no roms are visible. This now allows you to program the ROMs safely.
NOTE: Symbiface 2 does a partial decode of the current rom written to #df00. It only processes the lower 5 bits. This means the roms will repeat 4 times through the entire 256 ROM range. This also means they will clash with C4CPC and override Plus cartridge romspages.
== Mechanisms ==