@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::@1
  [5] (byte) main::a#2 ← phi( main/(byte) 0 main::@1/(byte) main::a#1 )
  [6] (byte) main::v#0 ← (byte) main::a#2 + (byte) 1
  [7] callprepare plus (byte) '0' (byte) main::v#0 
  [8] callexecute plus 
  [9] (byte) main::w#0 ← callfinalize plus 
  [10] (byte~) main::$2 ← (byte) main::w#0 + (byte) main::a#2
  [11] *((const byte*) SCREEN) ← (byte~) main::$2
  [12] (byte) main::a#1 ← ++ (byte) main::a#2
  [13] if((byte) main::a#1!=(byte) 2) goto main::@1
  to:main::@return
main::@return: scope:[main]  from main::@1
  [14] return 
  to:@return

__stackcall (byte()) plus((byte) plus::a , (byte) plus::b)
plus: scope:[plus]  from
  [15] (byte) plus::a#0 ← stackidx(byte,(const byte) plus::OFFSET_STACK_A)
  [16] (byte) plus::b#0 ← stackidx(byte,(const byte) plus::OFFSET_STACK_B)
  [17] (byte) plus::return#0 ← (byte) plus::a#0 + (byte) plus::b#0
  to:plus::@return
plus::@return: scope:[plus]  from plus
  [18] return (byte) plus::return#0
  to:@return
