64   ex_stack = NULL;  in init_storage()
280   if (ex_stack != NULL)  in pop()
282       temp = ex_stack;  in pop()
283       ex_stack = temp->s_next;  in pop()
299   temp->s_next = ex_stack;  in push_copy()
300   ex_stack = temp;  in push_copy()
313   temp->s_next = ex_stack;  in push_num()
314   ex_stack = temp;  in push_num()
327   temp = ex_stack;  in check_stack()
468 	  var_ptr->v_value = bc_copy_num (ex_stack->s_num);  in store_var()
476       if (bc_is_neg (ex_stack->s_num))  in store_var()
501 	  temp = bc_num2long (ex_stack->s_num);  in store_var()
502 	  if (!bc_is_zero (ex_stack->s_num) && temp == 0)  in store_var()
598   idx = bc_num2long (ex_stack->s_next->s_num);  in store_array()
600       (idx == 0 && !bc_is_zero(ex_stack->s_next->s_num)))   in store_array()
608 	  *num_ptr = bc_copy_num (ex_stack->s_num);  in store_array()
609 	  bc_free_num (&ex_stack->s_next->s_num);  in store_array()
610 	  ex_stack->s_next->s_num = ex_stack->s_num;  in store_array()
611 	  bc_init_num (&ex_stack->s_num);  in store_array()
632       bc_int2num (&ex_stack->s_num, i_base);  in load_var()
638       bc_int2num (&ex_stack->s_num, o_base);  in load_var()
644       bc_int2num (&ex_stack->s_num, scale);  in load_var()
651       bc_int2num (&ex_stack->s_num, n_history);  in load_var()
676   idx = bc_num2long (ex_stack->s_num);  in load_array()
678      (idx == 0 && !bc_is_zero(ex_stack->s_num)))   in load_array()
757   idx = bc_num2long (ex_stack->s_num);  in decr_array()
759      (idx == 0 && !bc_is_zero (ex_stack->s_num)))   in decr_array()
838   idx = bc_num2long (ex_stack->s_num);  in incr_array()
840       (idx == 0 && !bc_is_zero (ex_stack->s_num)))   in incr_array()
1016 	      v_temp->v_value = ex_stack->s_num;  in process_params()
1017 	      bc_init_num (&ex_stack->s_num);  in process_params()
1026 		ix = (int) bc_num2long (ex_stack->s_num);  in process_params()