複選題
23) Which of the following is true?
(A) When the CPU receives a maskable interrupt, it stops what it is doing and
immediately transfers execution to the interrupt handler
(B) I/O controllers emit interrupts via interrupt-request
lines
(C) In critical sections, the CPU may disables the non-maskable interrupts
(D) In an Intel processor, the
interrupt No. 1 is a maskable interrupt