[Coco] More GIME behavior

[Darren A]

Quoting Super Extended Basic Unravelled:

The design of the interrupt input circuitry also causes an interrupt
to occur if the interrupt source is high when the enable line is
brought low. This will cause a spurious interrupt, which your
interrupt handling routines must detect and reject. A current anomaly
in the interrupt circuitry causes the interrupt status register to be
cleared when a zero is written to the interrupt enable bit.

Does anyone know if the terms "enable line" and "interrupt enable bit"
are referring to the common enables in FF90, the individual enables in
FF92-93 or both?

Darren