;**If the button activity is short (a few bytes), it can fit here, though be
; careful that longest possible interrupt doesn't exceed int_period # of cycles.
;
; <short code segment can go here>
;
;**Otherwise, use this flag to process button press in main code (and don't
; forget to reset the flag once the button activity is complete). SETB pb1_pressed ; and set pb1 action flag SKIP ;skip next instruction :pb1_up CLRB pb1_down ;button up, clear flag CLR debounce1 ; and clear debounce count :done_pb1
; JMP done_pbs ;this needed only if path switch used ENDIF ;more than 1 push button pb2 IF num_buttons>2 ;more than 2 push buttons? ; BANK buttons ;do bank select (if not done elsewhere) JB button2,:pb2_up ;button2 pressed? JB pb2_down,:done_pb2 ;yes, but is it new press? INC debounce2 ; and adjust debounce count JNB debounce2.hold_bit,:done_pb2 ;wait till long enough SETB pb2_down ;yes, flag that button is down ;**If the button activity is short (a few bytes), it can fit here, though be
; careful that longest possible interrupt doesn't exceed int_period # of cycles.
;
;**Otherwise, use this flag to process button press in main code (and don't
;  orget to reset the flag once the button activity is complete). SETB pb2_pressed ; and set pb2 action flag SKIP ;skip next instruction :pb2_up CLRB pb2_down ;button up, clear flag CLR debounce2 ; and clear debounce count :done_pb2
; JMP done_pbs ;this needed only if path switch used ENDIF ;more than 2 push buttons pb3 IF num_buttons>2 ;more than 3 push buttons? ; BANK buttons ;do bank select (if not done elsewhere) JB button3,:pb3_up ;button3 pressed? JB pb3_down,:done_pb3 ;yes, but is it new press? INC debounce3 ; and adjust debounce count JNB debounce3.hold_bit,:done_pb3 ;wait till long enough SETB pb3_down ;yes, flag that button is down ;**If the button activity is short (a few bytes), it can fit here, though be
;  careful that longest possible interrupt doesn't exceed int_period # of cycles.
;
;**Otherwise, use this flag to process button press in main code (and don't
;  forget to reset the flag once the button activity is complete). SETB pb3_pressed ; and set pb3 action flag SKIP ;skip next instruction :pb3_up CLRB pb3_down ;button up, clear flag CLR debounce3 ; and clear debounce count :done_pb3 ENDIF ;more than 3 push buttons ;
done_pbs
;