teainside_asm_chall.asm

global _start

section .data
    aa  db '1234567890a',0
    len equ $-aa

section .text



_start:
    xor r8,r8;
    mov r9,aa;
    mov r14,len;
    mov r10,1;
loop:
    
    mov rax,[aa+r8];
   
    test r14,r14;
    je exit;
   
    lea rsi,[aa+r8+1];
    call write;

    lea rsi,[aa+r8];
    call write;
   
    add r8,2;
    ; inc r8;
    add r9,r8;
    dec r14;
    jmp loop;    

exit:
    xor rdi,rdi;
    mov rax, 60;
    syscall

write:
    mov rax, 1;
    mov rdi, 1;
    ; mov rsi, r13;
    mov rdx, r10;
    syscall
    ret

; write2:
;     mov rax, 1;
;     mov rdi, 1;
;     mov rsi, r12;
;     mov rdx, r10;
;     syscall
;     ret
; write:
;     mov rax, 1;
;     mov rdi, 1;
;     mov rsi, r10;
;     mov rdx, len
;     syscall
;     ret