Joker, Assembly - rextester

Joker

;nasm 2.11.08

section .data
    mas:     db 'more than or equal to 20',10    ; 'Hello world!' plus a linefeed character
    masLen:  equ $-mas             ; Length of the 'Hello world!' string
    menos:     db 'menos de 20',10
    menosLen:  equ $-menos
    joker:     db 'THE JOKER', ' '
    jokerLen:  equ $-menos
    
section .text
	global _start

_start:
;PROCESSING SECTION
    mov si, 0
    mov ax, [iNumber]
    cmp ax, 20
    jb displaymenos
    jae displaymas

;OUTPUT SECTION
displaymas
    mov eax,4            ; The system call for write (sys_write)
	mov ebx,1            ; File descriptor 1 - standard output
	mov ecx,mas        ; Put the offset of hello in ecx
	mov edx, masLen     ; helloLen is a constant, so we don't need to say
	                     ;  mov edx,[helloLen] to get it's actual value
	int 80h              ; Call the kernel
    
    jmp exit
    
displaymenos
    
    mov eax,4          
	mov ebx,1
    mov ecx,menos    
	mov edx, menosLen
    int 80h
    
jokerloop:
    mov eax,4          
	mov ebx,1
    mov ecx, joker    
	mov edx, jokerLen
    int 80h
    
    add si, 1
    cmp si, 5
    jb jokerloop

exit
	mov eax,1            ; The system call for exit (sys_exit)
	mov ebx,0            ; Exit with return code of 0 (no error)
	int 80h;


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