pfff... maybe
Code:
    IF TimerFlag = 1 THEN
       SecondsCounter = SecondsCounter + 1
       INTCON = 0
       HSEROUT ["Seconds = ",#SecondsCounter,13,10]
       INTCON = %11100000 
       TimerFlag = 0
       Timer = 0
       ENDIF

    IF KeyHitFlag = 1 THEN
       INTCON = 0
       HSERIN [Y]
       HSEROUT[Y]
       INTCON = %11100000 
       KeyHitFlag = 0
       ENDIF