🚀 go-pugleaf

After looking through the manuals, I have found nothing mentioning any way of
triggering an interrupt.  Here's the situation:
   1) I'm creating a system that will change the frequencies of an audio
   signal musically.  Thus, I might bring everything up an octave, or a
   semitone, or whatever.  I have the theory for that all down.
   2) I want to add hardware logic(using gates and F/F's) that will allow the
   user to change the number of semitones shifted.  The user presses the up or
   down button, which would send a trigger to the interrupt.  Meanwhile, the
   flip-flops would be used to hold the current amount the pitch is shifted,
   while displaying it on (either one or two) 7-segment LEDs.  This part is no
   problem.
So, I just basically want to know if any means are possible to trigger an
interrupt in the system like this, and what addresses would need to be changed
for setting the address of the interrupt routine, the masks, etc.
                        Thanks for any help.
                        Eric Landrieu

                        
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               =   Eric Landrieu  =  ETL0@ns1.CC.lehigh.EDU  =
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"I'd be apathetic, but I don't really care about it.