pop_backup
__next_stmt = pop_backup();
__cur_stmt = pop_backup();
__prev_stmt = pop_backup();
cur_func_sym = pop_backup();
switch_expr_stack = pop_backup();
big_condition_stack = pop_backup();
big_expression_stack = pop_backup();
big_statement_stack = pop_backup();
final_pass = PTR_INT(pop_backup()) >> 2;
loop_count = PTR_INT(pop_backup()) >> 2;
loop_num = PTR_INT(pop_backup()) >> 2;
goto_stack = pop_backup();
continue_stack = pop_backup();
default_stack = pop_backup();
remaining_cases = pop_backup();
switch_stack = pop_backup();
fake_break_stack = pop_backup();
break_stack = pop_backup();
fake_cur_stree_stack = pop_backup();
cond_false_stack = pop_backup();
cond_true_stack = pop_backup();
pre_cond_stack = pop_backup();
false_stack = pop_backup();
true_stack = pop_backup();
cur_stree = pop_backup();