
void main()
main: scope:[main]  from
  [0] phi()
  to:main::@1
main::@1: scope:[main]  from main main::@3 main::@4
  [1] ypos#1 = phi( main/0, main::@3/ypos#1, main::@4/ypos#0 )
  [1] counter#11 = phi( main/RATE, main::@3/counter#0, main::@4/RATE )
  to:main::@2
main::@2: scope:[main]  from main::@1 main::@2
  [2] if(*RASTER!=$ff) goto main::@2
  to:main::@3
main::@3: scope:[main]  from main::@2
  [3] counter#0 = -- counter#11
  [4] if(counter#0!=0) goto main::@1
  to:main::@4
main::@4: scope:[main]  from main::@3
  [5] ypos#0 = ++ ypos#1
  [6] *SCREEN = ypos#0
  to:main::@1
