;Divide by zero cpu exeption trap
  ;cpu exeption 5 ,will cause a Guru 00000005.xxxxxxxx
  ;Div by zero error will come up when the cpu uses Divs,Divu if the 
  ;denominator is so small that the cpu rounds it to zero,if it is
  ;smaller then a word because Divs,Divu only uses words.
  ;this little bit of code stops guru 5 and sets the answer to Div by zero
  ;to computer infinity i.e. for Divs $FFF and for Divu $FFFF. you may say 
  ;why do this, well if the number in the denominator is so small anyway then 
  ;the answer to the division will be very large so we set the answer to
  ;infinity,and go on. in almost all cases the program that caused the div by
  ;zero will work just fine with the answer at infinity.  
  ;to use this program just put Divzero in your startup-sequence
  ;it will do the work of traping the exception 5 and stopping guru