In an $8086$ microprocessor$-$based system, a simple input$/$output application is desired using an $8255$ chip, placed at consecutive even addresses starting from address $60$H $(60$H $-$ PortA, $62$H $$ PortB, $64$H $-$ PortC, and $66$H $$ control register$).$ For this purpose, two buttons are connected to the PortA$0$ and PortA$1$ terminals of the $8255,$ producing logical $0$ when pressed and logical $1$ when released. Four common anode $7-$segment displays are to be driven by PortB and PortC. PortC terminals will be used for the selection of the $7-$segment displays, while PortB terminals will serve as common data lines $($PortB$07-$segment display a$,...,$ PortB$77-$segment display h$)$ for the $7-$segment displays. All hardware connections related to the system have been made, and the project file is provided with the assignment. On the software side, a skeleton code defining the values to illuminate the common anode $7-$segment display segments for numbers $0-9$ at the data breakpoint is given in the project file.

Write assembly code that implements the following:

The system is controlled by two buttons $($INCREASE and DECREASE$)$ and consists of a counter with four $7-$segment displays. When the system is powered on$,$ the counter starts from $0000.$ The counter value increases by one each time the INCREASE button is pressed and decreases by one each time the DECREASE button is pressed. The counter counts in decimal places.STACK SEGMENT PARA STACK 'STACK'

DW $20$ DUP$(?)$

STACK ENDS

DATA SEGMENT PARA 'DATA'

DIGITS DB $0$C$0$H$,0$F$9$H$,0$A$4$H$,0$B$0$H$,99$H$,92$H$,82$H$,0$F$8$H$,80$H$,98$H

DATA ENDS

CODE SEGMENT PARA 'CODE'

ASSUME CS:CODE, DS:DATA, SS:STAK

START:

MOV AX$,$ DATA

MOV DS$,$ AX

; Write your code here

ENDLESS:

; Write your code here

JMP ENDLESS

CODE ENDS

END START That is the code diagram