KIORC with 512K RAM/ROM and Z80

KIORC is integrated with original RC2014 512K RAM/ROM board and Karlab's 23c Z80 with oscillator.

This setup can operate reliably with 14.7MHz CPU clock.

ROMWBW for KIORC. Build with “buildrom” command and specify “rcz80” and “kio” using factory settings.