🚀 go-pugleaf

Is there a lot of overhead in these puppies?  I guess the disk byte interrupts
come in a lot for floppy I/O, eh?

The thing is, my SMUS player doesn't sound right if floppy I/O is going on,
*or if there's no disk in one or more drives*, even though it uses a CIA
periodic timer to keep track of lost time.  

Right now, the player runs as a regular task, but I would be willing to make
it into a CIA timer interrupt handler if that would help it to play properly
concurrently with floppy I/O.

The thing is, apparently, the disk byte interrupt is higher priority, and
I get the idea you can get a lot of these, like many thousands a second.
The disk block interrupt is lower priority, so doing it from a timer interrupt
would preempt that, whereas a task cannot.

So I'd like an informed opinion on answers to these questions:  Is it possible
to play music (many notes, not just one long sample) during floppy I/O?
If so, will running it from an interrupt handler solve the problem, or what?
And what about no disk in a drive causing it to goof up occasionally?
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