Listing:

    1  DEFINITION MODULE multi1;
    2  
    3  (* For x we use Modula naming and calling convention *)
    4  PROCEDURE x(a,b,c,d:LONGCARD);
*****                      ^ undeclared identifier
    5  
    6  (* For y we use C naming and calling convention *)
    7  (*# save, name(prefix=>c), call(c_conv=>on) *)
    8  PROCEDURE y(a,b,c,d:LONGCARD);
*****                      ^ undeclared identifier
    9  (*# restore *)
   10  
   11  END multi1.
*****      ^ not supported yet

    3 errors