This is a simple question but I can't seem to find a good answer from searching endlessly on Google.

Do the basic implementations of the 68000 support nested exceptions?

if so when you execute a nested exception does it RTE to where it was called within the previous exception? and if the exception has the same or lower vector/mask/priority will that change if the exception occurs within an exception?

I searched Google and the book I have on the 68000 but haven't found an example or explanation yet.

for example is it possible to have a 68000 system with an external switch linked to the IPL that causes an exception when activated which runs in a loop until another exception of the same type is executed?

actually my example would be an interrupt not exception, I think....