Changes
PlayCity
,==Hardware Installation==
* Power OFF your Amstrad / Schneider CPC.
* Attach the PlayCity board to one free MotherX4 slogslot.
* Turn ON your computer, and enjoy! (if a grey screen appear, turn off your computer and check the connections)
==Peripheral Soft Reset==
All expansion peripherals should be reset when an output is performed to I/O port '''$F8FF'''.
Used by the standard BIOS functions
'''MC_BOOT_PROGRAM ''' and '''MC_START_PROGRAM ''' (vector BD13h vectors $BD13 and BD16h$BD16), in particular a peripheral that generates interrupts.
The PlayCity board use this feature to be sure that the CTC and YMZs circuits are properly reseted before using them.