Re: A86: interrupts and on key


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Re: A86: interrupts and on key




you detect an on press from port 3, whereas if you want to detect down and
left (not sure why you want that, but i guess maybe there's a reason), then
you use port 1.  the only way that down+left  [probably] triggers an on
interrupt is in the system im 1 interrupt.


In a message dated 2/17/99 10:49:07 AM Eastern Standard Time,
rabidcow@juno.com writes:

> does anyone know how to tell the difference between the on key and
>  something like down&left?  i'm reading the keypad from an im 2 routine,
>  so the os isn't involved and i'm reading directly from the ports.