Consider the following delay subroutine.

a$.$ Write after each instruction the number of instruction cycles it takes to execute

b$.$ Calculate the number of instruction cycles it takes to execute the call instruction and

Delay subroutine.

; more code

call Delay ; call subroutine

; more code

Delay: movlw $250$ ; Count init value

movwf cnt$0,$a ; Init counter

decf cnt$0,$f$,$a ; decrement count

nop ; delay cycle

bnz DTop ; not done?

return ; back to caller