Consider the following statement:
I. Subroutine call occur only at the place where the programmer has written it.
II. The location of the service routine call is fixed for a particular kind of interrupt.
III. Subroutine call require some enabling command.
IV. Subroutine call and interrupt call both are externally initiated.
Which of the following above statements is not correct?
(A) Only I and II
(B) Only II and III
(C) III and IV only
(D) Only I and IV
Explanation: Only statement III and IV are false.
Subroutine call does not require any enabling command. A subroutine call is internally initiated while interrupt call is externally initiated.
So, option (C) is correct.
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