I am trying to write a program that prints an integer, the integer is stored in rax register, I don't know why it only prints the first digit of the integer, in this case it's 3. The program divides rax by 10 and stores the remainder+48 in the reserved memory to display it later. we repeat this as long as rax is different than 0.
code:
section .bss
integer resb 100
section .text
global _start
_start:
mov rax, 321
call _printRAX
mov rax, 60
mov rdi, 0
syscall
_printRAX:
mov rbx, 10
mov rcx, integer
mov [rcx], rbx
_loop1:
inc rcx
mov rdx, 0
div rbx
add rdx, 48
mov [rcx], dl
cmp rax, 0
jne _loop1
_loop2:
mov rax, 1
mov rdi, 1
mov rsi, rcx
mov rdx, 1
syscall
dec rcx
cmp rcx, integer
jge _loop2
ret
output:
3
