I made a program in x$8664$ assembly that reads two single digit numbers from the user, adds them and displays the result. But it's not working properly. These are the errors: as $-$o addnumbers.o addnumber.s ld $-$o addnumbers addnumbers.o

$./$addnumbers

Enter a number: E$4$

Enter another number: H$5$

Here's the total: $\%$ld

$4$

When it should be:

$./$addnumbers

Enter a number: $4$

Enter another number: $5$

Here's the total: $9$

Here's my code: $.$section $.$data

prompt$1$: $.$asciz "Enter a number: $"$

prompt$2$: $.$asciz "Enter another number: $"$

output: $.$asciz "Here's the total: $\%$ld

$"$

$.$section $.$bss

$.$lcomm num$1,8$

$.$lcomm num$2,8$

$.$lcomm result, $8$

$.$section $.$text

$.$globl $\_$start

$\_$start:

mov $$1,\%$rdi # File descriptor: STDOUT

mov $prompt$1,\%$rsi # Message to display

mov $$18,\%$rdx # Length of the message

mov $$1,\%$rax # System call number: write

syscall

mov $$0,\%$rdi # File descriptor: STDIN

mov $num$1,\%$rsi # Buffer to read into

mov $$8,\%$rdx # Maximum number of bytes to read

mov $$0,\%$rax # System call number: read

syscall

mov $$1,\%$rdi # File descriptor: STDOUT

mov $prompt$2,\%$rsi # Message to display

mov $$24,\%$rdx # Length of the message

mov $$1,\%$rax # System call number: write

syscall

mov $$0,\%$rdi # File descriptor: STDIN

mov $num$2,\%$rsi # Buffer to read into

mov $$8,\%$rdx # Maximum number of bytes to read

mov $$0,\%$rax # System call number: read

syscall

movq $($num$1),\%$rax # Load the first number into $\%$rax

movq $($num$2),\%$rbx # Load the second number into $\%$rbx

add $\%$rbx$,\%$rax # Add $\%$rbx to $\%$rax

movq $\%$rax, $($result$)$ # Store the result in the 'result' variable

mov $$1,\%$rdi # File descriptor: STDOUT

mov $output, $\%$rsi # Message to display

mov $$26,\%$rdx # Length of the message

mov $$1,\%$rax # System call number: write

syscall

mov $$1,\%$rdi # File descriptor: STDOUT

mov $($result$),\%$rsi # Result to display

mov $$8,\%$rdx # Length of the result

mov $$1,\%$rax # System call number: write

syscall

mov $$60,\%$rax # System call number: exit

xor $\%$rdi, $\%$rdi # Exit code $0$

syscall