Which brings me right back to the PAL on the Megabuck$ Japanese Three Slot SE/30 Adapter.
Does anyone know if that's a pure hardware hack or if there's an init/driver necessary for it to work? :?:
My second thought would be that VIA2's function on the IIsi may be handled, in part, by the NuBus Bridge Chipset. If the NewBus Bridge tells the Mac that there's a DeclROM on a NuBus Card in slot X, then it's using interrupt Y by definition, therefore the Slot Manager ought to handle it as such without the need for inits/drivers.
It may be a stretch, but the NuBus Signal and the NuBus Chipset availability seem to be the defining characteristics that differentiate the two machines and their near-identical '030 PDS implementations.
Does anyone know if that's a pure hardware hack or if there's an init/driver necessary for it to work? :?:
My second thought would be that VIA2's function on the IIsi may be handled, in part, by the NuBus Bridge Chipset. If the NewBus Bridge tells the Mac that there's a DeclROM on a NuBus Card in slot X, then it's using interrupt Y by definition, therefore the Slot Manager ought to handle it as such without the need for inits/drivers.
It may be a stretch, but the NuBus Signal and the NuBus Chipset availability seem to be the defining characteristics that differentiate the two machines and their near-identical '030 PDS implementations.