Take the code from part $2$ and modify it so that for this part, your display should

only output light if the digit is being used. This means you will have to have

some sort of check to see when you read a $0000$ for a hex digit, if there are any

digits to the left of those four $0$s$,$ if there is display a hex $0,$ if not, turn off all the

LEDs for that display. For example, if the generated answer is supposed to be

F$80$B$,$ it should display only those four digits, it should show neither $00$F$80$B$,$

nor F$8$ B$,$ just F$80$B This is part $2$ "SEGMENT$2$: $.$byte $0,0$

SEVEN: $.$byte $63,6,91,79,102,109,125,7,127,111,119,124,57,94,121,113$

$.$text

$.$global $\_$start

$\_$start:

LDR R$2,=0$xff$200050//$pushbutton

LDR R$6,=0$xff$200040//$switches

LDR R$3,=$SEVEN $//$LUT

LDR R$12,=$SEGMENT

LOOP: LDRB R$10,=0$x$000$F

LDR R$1,=0$xff$200020//$seven segment $0$ through $3$

LDR R$7,=0$

LDR R$11,=0$

LDRB R$0,[$R$2]//$LOADING VALUE OF PUSH BUTTONS

LDRB R$5,[$R$6]//$LOADING VALUE OF SWITCHES

B MASK

MASK:

LSL R$7,$ R$5,$ R$0$

AND R$8,$ R$7,$ R$10$

LDRB R$11,[$R$3,$ R$8]$

STRB R$11,[$R$12]$

MASK$2$: LSR R$7,$ #$4$

AND R$8,$ R$7,$ R$10$

$//$ LSL R$7,$ #$8$

LDRB R$11,[$R$3,$ R$8]$

STRB R$11,[$R$12,$ #$1]$

MASK$3$: LSR R$7,$ #$4$

AND R$8,$ R$7,$ R$10$

$//$ LSL R$7,$ #$8$

LDRB R$11,[$R$3,$ R$8]$

STRB R$11,[$R$12,$ #$2]$

MASK$4$: LSR R$7,$ #$4$

AND R$8,$ R$7,$ R$10$

LDRB R$11,[$R$3,$ R$8]$

STRB R$11,[$R$12,$ #$3]$

MASK$5$: LDR R$9,=$SEGMENT$2$

LSR R$7,$ #$4$

AND R$8,$ R$7,$ R$10$

LDRB R$11,[$R$3,$ R$8]$

STRB R$11,[$R$9]$

MASK$6$:

LSR R$7,$ #$4$

AND R$8,$ R$7,$ R$10$

LDRB R$11,[$R$3,$ R$8]$

STRB R$11,[$R$9,$ #$1]$

B DISPLAY

DISPLAY: LDR R$4,[$R$12]$

STR R$4,[$R$1]$

LDR R$5,=0$xff$200030//$second set of segments $4$ and $5$

LDR R$4,[$R$9]$

STR R$4,[$R$5]$

B LOOP

DEAD: B DEAD

$.$end"