I$\text{'}$m writing code to add two $64$ bit integers together using $32$ bit registers in assembly. I$\text{'}$m not sure what is wrong with my code, but I$\text{'}$m failing tests and having issues compiling. Here it is: $.$global start

$.$equ wordsize, $4$

$.$data

num$1$: $.$long $1,1$

num$2$: $.$long $1,1$

$.$text

$\_$start:

movl num$1,\%$eax #eax $=$ first half num$1$

movl num$2,\%$ecx #ecx $=$ first half num$2$

addl $\%$ecx, $\%$eax

movl $(\%$eax$),\%$ecx #ecx $=$ second half num$1$

movl $(\%$ebx$),\%$edx #edx $=$ second half num$2$

addl $\%$ecx, $\%$edx

jnc end$\_$carry

carry:

addl $$1,\%$eax

end$\_$carry:

nop

done:

nop