Peter Graf wrote: > Disadvantage: No 8 bit or 16 bit access possible - there are no such > signals on the ROM sockets. It would be up to the driver to use only 32 > bit wide access! (This might be achievable by making the screen area > copyback-cacheable and force a flush with every 50 Hz interrupt.)
For the experts: As the ROM sockets have no "read/write" pin, the Q60 glue logic would have to code the information about a write access into the pulse length of the "output enable signal". This requires reprogramming one of the Q60 chips. If someone does not want that, the addon card could still serve as an EPROM replacement and SD card interface. Peter _______________________________________________ QL-Users Mailing List
