section .data
    msg db 'Value of rcx: ', 0  ; Mensagem para ajudar na depuração
    len equ $ - msg             ; Tamanho da mensagem
 
section .text
    global _start
 
_start:
    ; Comparação entre rax e rbx
    mov rax, 4              ; Coloca 4 em rax
    mov rbx, 4              ; Coloca 4 em rbx
    cmp rax, rbx            ; Compara rax com rbx
    jz iguais               ; Se forem iguais, salta para 'iguais'
 
    mov rcx, 2              ; Se não forem iguais, coloca 2 em rcx
    jmp fim                  ; Salta para 'fim'
 
iguais:
    mov rcx, 7              ; Se forem iguais, coloca 7 em rcx
 
fim:
    ; Imprimir a mensagem
    mov rax, 1              ; Syscall sys_write
    mov rdi, 1              ; File descriptor 1 (stdout)
    mov rsi, msg            ; Mensagem a ser impressa
    mov rdx, len            ; Tamanho da mensagem
    syscall                 ; Chama a syscall para imprimir a mensagem
 
    ; Verifica se rcx está entre 0 e 9 (é um número de 1 dígito)
    cmp rcx, 9
    jae erro                ; Se rcx for maior que 9, vai para erro
 
    ; Converte rcx para o caractere ASCII correspondente
    add rcx, '0'            ; Converte o valor de rcx (0-9) para o caractere ASCII
 
    ; Exibe o valor de rcx na tela
    mov rax, 1              ; Syscall sys_write
    mov rdi, 1              ; File descriptor 1 (stdout)
    mov rsi, rcx            ; Passa o caractere a ser impresso (em rcx)
    mov rdx, 1              ; Apenas 1 byte (caractere) será impresso
    syscall                 ; Chama a syscall para imprimir o valor de rcx
 
    ; Final do programa
    mov rax, 60             ; Syscall sys_exit
    xor rdi, rdi            ; Código de saída 0 (sucesso)
    syscall                 ; Chama a syscall de saída
 
erro:
    ; Se rcx estiver fora do intervalo, imprima uma mensagem de erro
    mov rsi, erro_msg
    mov rdx, erro_len
    mov rax, 1
    mov rdi, 1
    syscall
    mov rax, 60             ; Syscall sys_exit
    xor rdi, rdi            ; Código de saída 1 (erro)
    syscall
 
section .data
    erro_msg db 'Error: rcx value is out of bounds (0-9)', 0
    erro_len equ $ - erro_msg
 

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