I need help using Interrupt routines

[KaRyu]

There is 1 led display, 3 switches
This should be the flow of the program:
the default led display is 0;
when sw1 is pressed, the led display will count up(1,2,3,4,5,6,7,8,9);
when sw2 is pressed, the led display will count down(9,8,7,6,5,4,3,2,1);
when sw3 is pressed, the led display will count odd numbers(1,3,5,7,9);

Whiile counting up when sw2 is pressed, the led display will count down then return to where it was interrupted
Whiile counting up when sw3 is pressed, the led display will just continue to count up.

Whiile counting down when sw3 is pressed, the led display will count odd numbers then return to where it was interrupted
Whiile counting down when sw1 is pressed, the led display will just continue to count up.



Whiile counting odd numbers when sw1 is pressed, the led display will count up then return to where it was interrupted
Whiile counting odd numbers when sw3 is pressed, the led display will just continue to count up.

 

[jpanhalt]

Which processor are you using? Why do you think that needs an interrupt? What language are you using?

John

 

[KaRyu]

Which processor are you using? Why do you think that needs an interrupt? What language are you using?

John

I'm using a z8.
This is really a nonsense program, just need to know how interrupt work