int a=50,b;
void main()
{
   __out a + &b - &a;
}

3

   top:top top sqmain

.  _a:50 _b:0

_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; t2 0

   t1; t2; _a t1; c1 t1; t1 t2
   t1; t2 Z; Z t1; Z; c2 t1
   t1 (-1)

   ?+8; sp ?+4; t2; 0 t2; 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)

. c2:_a c1:_b

. t1:0 t2:0

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

Root (mg_18_4.hsq:6)
   Declaration (mg_18_4.hsq:1)
      Keyword [int] (mg_18_4.hsq:1)
      Declarator [=] (mg_18_4.hsq:1)
         Id [a] (mg_18_4.hsq:1)
         Const [50] (mg_18_4.hsq:1)
      Declarator [0] (mg_18_4.hsq:1)
         Id [b] (mg_18_4.hsq:1)
   Function:0 [main] (mg_18_4.hsq:2)
      Keyword [void] (mg_18_4.hsq:2)
      Param-type-list (mg_18_4.hsq:2)
      Block (mg_18_4.hsq:3)
         OperatorIO [__out] (mg_18_4.hsq:4)
            Additive [-] (mg_18_4.hsq:4)
               Additive [+] (mg_18_4.hsq:4)
                  Variable [a] (mg_18_4.hsq:4) =:1
                  Unary [&] (mg_18_4.hsq:4)
                     Variable [b] (mg_18_4.hsq:4) 0:1
               Unary [&] (mg_18_4.hsq:4)
                  Variable [a] (mg_18_4.hsq:4) =:1