I implemented the program but there are errors like r$0$is an invalid operand.

and i tried to solve the errors through chatgpt but the digital clock is not visible on edsim$518051$microcontroller$.$ Pls help me with this solution

As you can see there is no output on lcd module as well as on $7$segment display

I want a digital clock using $7$ segment display or lcd module on edsim. I should be hh:mm:ss $.$

Code you have given is:$-$

ORG $0000$H ; Origin SJMP MAIN ; Jump to main program ORG $000$BH ; Timer $0$interrupt vector AJMP TIMER$\_$ISR ; Jump to Timer ISR MAIN: MOV TMOD, #$01$H ; Timer $0$in mode $1(16-$bit$)$MOV TH$0,$#$0$E$1$H ; Load high byte for $1-$sec delay MOV TL$0,$#$083$H ; Load low byte for $1-$sec delay SETB TR$0$; Start Timer $0$SETB ET$0$; Enable Timer $0$interrupt SETB EA ; Enable global interrupts MOV R$0,$#$00$H ; Initialize seconds MOV R$1,$#$00$H ; Initialize minutes MOV R$2,$#$00$H ; Initialize hours DISPLAY$\_$LOOP: CALL DISPLAY$\_$TIME ; Display current time SJMP DISPLAY$\_$LOOP ; Repeat TIMER$\_$ISR: CLR TR$0$; Stop Timer $0$MOV TH$0,$#$0$E$1$H ; Reload high byte MOV TL$0,$#$083$H ; Reload low byte INC R$0$; Increment seconds CJNE R$0,$#$60,$EXIT$\_$ISR ; Check if seconds reached $60$CLR R$0$; Reset seconds INC R$1$; Increment minutes CJNE R$1,$#$60,$EXIT$\_$ISR ; Check if minutes reached $60$CLR R$1$; Reset minutes INC R$2$; Increment hours CJNE R$2,$#$24,$EXIT$\_$ISR ; Check if hours reached $24$CLR R$2$; Reset hours EXIT$\_$ISR: SETB TR$0$; Restart Timer $0$RETI ; Return from interrupt DISPLAY$\_$TIME: MOV A$,$R$2$; Move hours to accumulator CALL DISPLAY$\_$DIGIT MOV A$,$R$1$; Move minutes to accumulator CALL DISPLAY$\_$DIGIT MOV A$,$R$0$; Move seconds to accumulator CALL DISPLAY$\_$DIGIT RET ; Return from subroutine DISPLAY$\_$DIGIT: ;; Code to display digit on seven$-$segment $($implement multiplexing here$)$RET END ; End of program