
void main()
main: scope:[main]  from
  [0] phi()
  [1] call mul16u
  [2] mul16u::return#0 = mul16u::return#2
  to:main::@1
main::@1: scope:[main]  from main
  [3] main::$0 = mul16u::return#0
  [4] *main::screen = main::$0
  [5] call mul16u
  [6] mul16u::return#1 = mul16u::return#2
  to:main::@2
main::@2: scope:[main]  from main::@1
  [7] main::$1 = mul16u::return#1
  [8] *(main::screen+1*SIZEOF_UNSIGNED_LONG) = main::$1
  to:main::@return
main::@return: scope:[main]  from main::@2
  [9] return 
  to:@return

unsigned long mul16u(unsigned int b , unsigned int a)
mul16u: scope:[mul16u]  from main main::@1
  [10] mul16u::a#2 = phi( main/$a, main::@1/$3e8 )
  [10] mul16u::b#2 = phi( main/$a, main::@1/$3e8 )
  [11] mul16u::mb#0 = (unsigned long)mul16u::b#2
  [12] mul16u::return#2 = mul16u::mb#0 + mul16u::a#2
  to:mul16u::@return
mul16u::@return: scope:[mul16u]  from mul16u
  [13] return 
  to:@return
