Suppose a processor does not have any stack pointer registers, which of the following statements is true ?
A. It cannot have subroutine call instruction
B. It cannot have nested subroutine calls
C. Interrupts are not possible
D. All subroutine calls and interrupts are possible
Answer:A
Suppose a processor does not have any stack pointer registers, which of the following statements is true ?
A. It cannot have subroutine call instruction B. It cannot have nested subroutine calls C. Interrupts are not possible D. All subroutine calls and interrupts are possible