void f();

void main()
{
   f();
}

Warning {2992}(ex012.hsq:5) unresolved 'f'

   top:top top sqmain

_main:
   dec sp; ?+11; sp ?+7; ?+6; sp ?+2; 0
   ?+6; sp ?+2; bp 0
   bp; sp bp
   dec sp; ?+11; sp ?+7; ?+6; sp ?+2; 0
   ?+6; sp ?+2; t1 0

   dec sp; ?+11; sp ?+7; ?+6; sp ?+2; 0
   ?+6; sp ?+2; ?+2 0 _f; . ?;
   inc sp

   ?+8; sp ?+4; t1; 0 t1; inc sp
   sp; bp sp
   ?+8; sp ?+4; bp; 0 bp; inc sp
   ?+8; sp ?+4; ?+7; 0 ?+3; Z Z 0

sqmain:
   dec sp; ?+11; sp ?+7; ?+6; sp ?+2; 0
   ?+6; sp ?+2; ?+2 0 _main; . ?; inc sp

   Z Z (-1)

. t1:0

. inc:-1 Z:0 dec:1 ax:0 bp:0 sp:-sp

Root (ex012.hsq:7)
   Function:0 [f] (ex012.hsq:1)
      Keyword [void] (ex012.hsq:1)
      Param-type-list (ex012.hsq:1)
   Function:0 [main] (ex012.hsq:3)
      Keyword [void] (ex012.hsq:3)
      Param-type-list (ex012.hsq:3)
      Block (ex012.hsq:4)
         Postfix [(] (ex012.hsq:5)
            Label [f] (ex012.hsq:5)