Richard's way is the best. Just for referece it could also be done without asm since its not time sensitive.

Code:
old_enc_counter var word
Main_Loop:   
  
if enc_counter<> old_enc_counter then 'If change update LCD
Lcdout $fe, 1                    
Lcdout Dec enc_counter     ; display counter value on LCD
old_enc_counter = enc_counter
endif
goto Main_Loop
end