In SX Microcontrollers, SX/B Compiler and SX-Key Tool, peterverkaik wrote:

I usually use

MASK equ value  ;clear bits for unused inputs

mode $09

clr w

mov !rb,w  ;clear wkpnd_B

and w,#MASK ;clear unused pins

or rbstatus,w  ;add new pin interrupts to status byte

 

This allows also to delay pin interrupts to main code if allowed

(for example, a button press). Once a pin interrupt task is completed,

the appropiate bit in rbstatus is cleared.

 

regards peter

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