PV1000

• https://github.com/mamedev/mame/blob/master/src/mess/drivers/pv1000.c
• http://homepage3.nifty.com/takeda-toshiya/pv1000
• http://en.wikipedia.org/wiki/PV-1000
• http://www.old-computers.com/museum/computer.asp?c=849&st=2