@begin: scope:[]  from
  [0] phi()
  to:@1
@1: scope:[]  from @begin
  [1] phi()
  [2] call main 
  to:@end
@end: scope:[]  from @1
  [3] phi()

(void()) main()
main: scope:[main]  from @1
  [4] phi()
  to:main::@1
main::@1: scope:[main]  from main main::@2
  [5] (byte) main::i#2 ← phi( main/(byte) 0 main::@2/(byte) main::i#1 )
  [6] (word) main::w#0 ← (word)(byte) main::i#2
  [7] (byte~) main::$0 ← (byte) main::i#2 & (byte) 1
  [8] if((byte) 0==(byte~) main::$0) goto main::@3
  to:main::@2
main::@3: scope:[main]  from main::@1
  [9] phi()
  to:main::@2
main::@2: scope:[main]  from main::@1 main::@3
  [10] (word) main::w#2 ← phi( main::@3/(word) main::w#0 main::@1/(byte) -1 )
  [11] (byte~) main::$3 ← (byte) main::i#2 << (byte) 1
  [12] *((const word*) screen + (byte~) main::$3) ← (word) main::w#2
  [13] (byte) main::i#1 ← ++ (byte) main::i#2
  [14] if((byte) main::i#1!=(byte) 8) goto main::@1
  to:main::@return
main::@return: scope:[main]  from main::@2
  [15] return 
  to:@return
