[Coco] Q: Field Sync Interrupt

[Torsten Dittel]

Hi,
something on-topic ;-):

What happens exactly, if you write to Bit 7 of $FF02? I know this Bit is
the Field Sync Interrupt Flag which (if interrupt enabled in the CC and
in Bit 0 of $FF03) is set when an interrupt occurs each 16.67ms and has
to be cleared by reading from address $FF02 within the Interrupt Service
Routine to allow further IRQs.

Thanks and regards,
Torsten