%include "io.inc"

section .data
r db "r", 0
s db "%s", 0
d db "%d", 0
in1 db "data.txt", 0
k dd 0

section .bss
x resd 1

section .text

CEXTERN fopen
CEXTERN fclose
CEXTERN fscanf
EXTERN printf

global CMAIN
CMAIN:
    mov ebp, esp; for correct debugging
    sub esp, 4; 4 + 4 = 8

    push r
    push in1; 16
    call fopen
    add esp, 8; 8

    mov esi, eax; esi = f

    .while:
    sub esp, 12 ; 20
    push x
    push d
    push dword[esi]; 32
    call fscanf
    add esp, 12; 20

    cmp eax, 1
    je .add

    cmp eax, -1
    je .end

    .add:
    add dword[k], 1
    jmp .while



    .end:

    sub esp, 4; 24
    mov ecx, dword[k]
    push ecx
    push d; 32
    call printf
    add esp, 8; 24

    sub esp, 4; 28
    push dword[esi]; 32
    call fclose
    add esp, 4; 28

    add esp, 28

    xor eax, eax
    ret