Can´t get DT´s interrupts working

[Mugelpower]

Hi Guys & Dolls,

got the DT program running but needed to implement a stupid LCD comment first!

otherwise the lcd shows only rubbish

'****************************************************************                                            *
'*  Notes   : To use this example with MicroCode Studio, you    *
'*          : should:                                           *
'*          : PIC 16F88 4 MHZ crystal                           *
'*                   WORKS!                  ´                  *
'****************************************************************





    CMCON = 7         ' Disable analog comparator
    ANSEL = %00000000     ' set all to digital
          
Include "modedefs.bas"


define OSC 4            ' this example uses a 4MHz clock

        CMCON = 7                ' RA0-RA3 are digital I/O
        TRISA = 0                ' PORT A is output
         TRISB = 3       ' RB0 is Input count RB1 Input reset others output
      

Minute   var     byte    ' Define minute variable
Second   var     byte    ' Define second variable
Ticks    var     byte    ' Define pieces of seconds variable
DoUpdate var     byte    ' Define variable to indicate update 

clear             ' clear all RAM (sets all VAR declarations to zero)
DoUpdate = 1      ' Force first display

OPTION_REG = %00000101            ' Set TMR0 configuration 
INTCON = $A0                ' Enable TMR0 interrupts
On Interrupt Goto TickInterrupt
   
         PAUSE 100
        LCDOUT $FE,1,"Guten" 
        pause 2000
         LCDOUT $FE,1,"Tag" 
        pause 2000
        
' Main program loop 
MainLoop:
   if DoUpdate then
      LCDOUT $FE,1
       LCDOUT $FE,1,DEC2 Minute, ":",DEC2 Second  
       DoUpdate = 0
   endif
   Goto MainLoop  

' Interrupt routine to handle each timer tick
' Disable interrupts during interrupt handler
disable 
TickInterrupt:
   Ticks = Ticks + 1                 ' Count pieces of seconds
   If Ticks < 61 Then ExitInterrupt  ' 61 ticks per second 

  ' One second elasped - update time
   Ticks = 0
   Second = Second + 1
   If Second >= 60 Then
      Second = 0
      Minute = Minute + 1
      If Minute >= 60 Then
         Minute = 0
      endif
   Endif
   DoUpdate = 1      ' Set update

ExitInterrupt: 
    INTCON.2 = 0    ' Reset timer interrupt flag
    Resume
    end

this is a far cry from my goal but at least a big jump for me, an unbelievable small step for mankind, maybe a step back.....