The Wizard of Oz <wizard@emeraldcity.gov> writes:
I was going to ignore this thread until I thought about the possibility
of co-processor cards. If a co-processor card could be active the same
time as the GS processor then you could get true multi-tasking as opposed
to the time slice mechanism everyone else is suggesting.
It depends on the type of co-processor card. A Stellation Mill with a
6809E chip can run a program while the motherboard CPU runs another program
but as both are using the same RAM on the motherboard they still time slice
(just at a much finer level than an interrupt driven pre-emptive multitasking
system) with the 6502 only running during cycles when the 6809E does not need
to use the data bus.
Do any co-processor cards for the Apple II family have on-board RAM allowing
them to run completely independently of the motherboard (apart from I/O)?