-- higher-order recursive functions

function f((*, integer -> integer, integer) -> *, integer -> integer, integer) {
  push 6;
  trace;
  pop;
  push arg[2];
  trace;
  pop;
  push 7;
  trace;
  pop;
  push arg[2];
  push 0;
  eq;
  br {
    true: {
      push "end";
      trace;
      pop;
      push void;
      ret;
    }
    false: {
      push 9;
      trace;
      pop;
      push arg[2];
      push arg[1];
      call $ 1;
      push arg[1];
      push arg[0];
      push $;
      tcall $ 3;
    }
  };
}

function g(integer) : integer {
  push arg[0];
  push 10;
  mul;
  trace;
  pop;
  push 1;
  push arg[0];
  sub;
  ret;
}

function main() {
  push 4;
  calloc g 0;
  calloc f 0;
  tcall f;
}