MZ-700 - Fully working MZ-80A - needs resistor to vcc on DRQ, CPM on MZ-80A wont boot, could be timing, need to disassemble CPM FDC code to detect what it is doing different to Sharp software. FDOS boots fine. Changes needed: GAL16V8 pin 12 to output as ROMA10, pin 18 used for input mode0 in order to use registered mode as DRQ needs sample and hold.