shawnnapora

; If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23.
; Find the sum of all the multiples of 3 or 5 below 1000.

.include "tn85def.inc"

  .def counter_lR = r24  ; adiw works against r24+
  .def counter_hR = r25
  .def zeroR      = r1   ; so we can carry with adc since there's no adic
  .def threeR     = r18
  .def fiveR      = r19