printletters.asm

section .data
    character db 0,10

section .bss
    mystr resb 128

section .text
    global _start

_start:
    mov r8, 0
    call getStr
    call printStrChars

    mov rax, 60
    mov rdi, 0
    syscall

getStr:
    mov rax, 0
    mov rdi, 0
    mov rsi, mystr
    mov rdx, 128
    syscall
    ret

printStrChars:
    add r8, 1
    mov rax, [mystr+r8-1]
    mov [character], al
    mov rax, 1
    mov rdi, 1
    mov rsi, character
    mov rdx, 2
    syscall
    cmp r8, 128
    jne printStrChars
    ret