@begin: scope:[]  from
  [0] phi()
  to:@1
@1: scope:[]  from @begin
  [1] phi()
  [2] call main 
  to:@end
@end: scope:[]  from @1
  [3] phi()
main: scope:[main]  from @1
  [4] *((const signed byte*) main::SCREEN#0) ← *((const signed byte[]) main::msg#0)
  [5] *((const signed byte*) main::SCREEN#0+(byte) 1) ← *((const signed byte[]) main::msg#0+(byte) 1)
  [6] *((const signed byte*) main::SCREEN#0+(byte) 2) ← *((const signed byte[]) main::msg#0+(byte) 2)
  to:main::@return
main::@return: scope:[main]  from main
  [7] return 
  to:@return
