Comparação CMP

;comparação cmp
;Lincoln Cesar dos Reis Arantes
;compilador https://www.tutorialspoint.com/compile_assembly_online.php

section .text
    global _start       ;must be declared for using gcc
_start:   ;tell linker entry point


   ;chamada de escrita
    mov edx, len    ;message length
    mov ecx, msg    ;message to write
    mov ebx, 1      ;file descriptor (stdout)
    mov eax, 4      ;system call number (sys_write)
    int 0x80        ;call kernel


    mov eax, 0x1
    mov ebx, 0x1

    ;comparar
    cmp eax, ebx
    jne errada
    call igual




    errada:

    mov edx, len3    ;message length
    mov ecx, msg3    ;message to write
    mov ebx, 1      ;file descriptor (stdout)
    mov eax, 4      ;system call number (sys_write)
    int 0x80        ;call kernel

        ;chamada de saída
    mov eax, 1      ;system call number (sys_exit)
    int 0x80        ;call kernel




    igual:

    mov edx, len2    ;message length
    mov ecx, msg2    ;message to write
    mov ebx, 1      ;file descriptor (stdout)
    mov eax, 4      ;system call number (sys_write)
    int 0x80        ;call kernel

            ;chamada de saída
    mov eax, 1      ;system call number (sys_exit)
    int 0x80        ;call kernel


section .data

msg db  'Resultado: ',0xa   ;our dear string
len equ $ - msg         ;length of our dear string


msg2    db  'Igual',0xa ;our dear string
len2    equ $ - msg2            ;length of our dear string

msg3    db  'não Igual',0xa    ;our dear string
len3    equ $ - msg3            ;length of our dear string