$(25$pts$)$ a$)$ What is the purpose of the following program? b$)$ the contents of $A,R5,R6$ and $R7?$

MOV $A,$ #OFEH

MOV P$1,$ A

MOV P$1,$ #$0$E$8$H

MOV A$,$ P$1$

MOV $B,$#$10$

DIVAB

MOV $R7,B$

Q MOV $B,$#$10$

$I=$DIVAB

MOV R$6,$ B

MOV R$5,$ A

$R5=$

$R6=$

$R7=$

ACC$=$