== 8bit Printer Port Mods ==
=== 8bit Printer Port in CPC Plus ===
In the CPC Plus, Bit 3 of CRTC Register 0Ch can be used as eighth
printer bit. For compatibility to normal CPCs it might be possible to
enable/disable this feature by a 'jumper' on the mainboard.
=== Happy Computer 8bit Printer Port upgrade (DIY) ===