Кто-нибудь в состоянии корректно перевести этот текст?: It is recommended that application programs do not use CALL subroutines within an interrupt subroutine. Interrupts often occur in an unpredictable manner or need to be serviced immediately in some applications. If only one stack is left and the interrupt enable is not well controlled, once a CALL subroutine if used in the interrupt subroutine will corrupt the original control sequence.