打印整数NASM

Question

I'm trying to read 3 numbers from the user and I store them in an array then I show them using paul carter functions in NASM here is my code :

%include "asm_io.inc"

SECTION .bss 

tab resb 3

SECTION .data 
msg db "Un nombre :",10 

SECTION .text 
 global main 
      main:
    mov esi,tab 
    xor ecx,ecx 
get_data:   
    mov eax,msg 
    call print_string 
    call read_int 
    mov [esi+ecx],eax   
    inc ecx 
    cmp ecx,3 
    jne get_data
    call print_nl
    xor ecx,ecx 
    mov edi,tab 
print_data: 
    mov eax,[edi+ecx]
    call print_int 
    inc ecx 
    cmp ecx,3 
    jne print_data 






    mov eax,1 ; exit code 
    int 0x80 ; call exit 

The problem is that is doesn't execute print_data loop and it exit .

Answer 1

Just to be clear. Are these the changes you did? Even if the ECX register is not used as an input or output for a particular function it might still be used internally. That's what Michael meant with 'ecx is typically caller-saved'

%include "asm_io.inc"

SECTION .bss 

tab resd 3

SECTION .data 
msg db "Un nombre :",10,0

SECTION .text 
global main 
main:
mov edi,tab 
xor ecx,ecx 
get_data:
push ecx   
mov eax,msg 
call print_string 
call read_int 
mov [edi+ecx*4],eax   
pop ecx
inc ecx 
cmp ecx,3 
jne get_data
call print_nl
mov esi,tab
xor ecx,ecx  
print_data: 
push ecx
mov eax,[esi+ecx*4]
call print_int 
pop ecx
inc ecx 
cmp ecx,3 
jne print_data 

mov eax,1 ; exit code 
int 0x80 ; call exit