@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
  asm { lda#'a' ldx#$ff !: sta$0400,x sta$0500,x sta$0600,x sta$0700,x dex bne!-  }
  to:main::@return
main::@return: scope:[main]  from main
  [5] return 
  to:@return