Question $4($Mandatory$)(45$ points$)$

Following the specification for subroutine Full given in the comment header below for the circular FIFO queue used in class and lab, complete the subroutine to determine whether the queue is full.

Full PROC $\backslash (\backslash \{\backslash )$ RO$-$R$14\backslash \}$

;Determines if queue is full.

;Sets$/$clears APSR Z flag to reflect full$/$non$-$full queue.

;Input: R$1$: Address of queue management record structure

;Output: APSR Z flag $=($Boolean$)$ Full $(1$ if full; $0$ otherwise$)$

;Modify: APSR

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