Write a program in assembly language that retrieves input from the keypad and displays it on a $7-$segment display using EDSIM$51.$ That is my attempt but the code does not work $($KEYPAD$\_$DISPLAY:

CLR P$0\mathrm{.}0$

JNB P$0\mathrm{.}0,$ROW$\_0$

L$1$:

CLR P$0\mathrm{.}1$

JNB P$0\mathrm{.}1,$ROW$\_1$

L$2$:

CLR P$0\mathrm{.}2$

JNB P$0\mathrm{.}2,$ROW$\_2$

L$3$:

CLR P$0\mathrm{.}3$

JNB P$0\mathrm{.}3,$ROW$\_3$

ROW$\_0$:

JNB P$0\mathrm{.}4,$NUM$\_1$

JNB P$0\mathrm{.}5,$NUM$\_2$

JNB P$0\mathrm{.}6,$NUM$\_3$

SJMP L$1$

ROW$\_1$:

JNB P$0\mathrm{.}4,$NUM$\_4$

JNB P$0\mathrm{.}5,$NUM$\_5$

JNB P$0\mathrm{.}6,$NUM$\_6$

SJMP L$2$

ROW$\_2$:

JNB P$0\mathrm{.}4,$NUM$\_7$

JNB P$0\mathrm{.}5,$NUM$\_8$

JNB P$0\mathrm{.}6,$NUM$\_9$

SJMP L$3$

ROW$\_3$:

JNB P$0\mathrm{.}5,$NUM$\_0$

SJMP $

NUM$\_0$:

MOV P$1,$ #$11000000$B

NOP

NUM$\_1$:

MOV P$1,$ #$11111001$B

NOP

NUM$\_2$:

MOV P$1,$ #$10100100$B

NOP

NUM$\_3$:

MOV P$1,$ #$10110000$B

NOP

NUM$\_4$:

MOV P$1,$ #$10011001$B

NOP

NUM$\_5$:

MOV P$1,$ #$10010010$B

NOP

NUM$\_6$:

MOV P$1,$ #$10000010$B

NOP

NUM$\_7$:

MOV P$1,$ #$11111000$B

NOP

NUM$\_8$:

MOV P$1,$ #$10000000$B

NOP

NUM$\_9$:

MOV P$1,$ #$10010000$B

NOP

SJMP $$)$

$"""""$I do not want to use DPTR$"""""$