Parni Paritet

#void SetParity(word *vrijednost);
.section .text
.globl SetParity


SetParity:
    pushl %ebp
    movl %esp, %ebp

    movl 8(%esp), %eax
    movw (%eax), %ax    # %ax broj


    movb $0, %dl    #paran/neparan
    movw $1, %cx    #maska
    movl $0, %esi   #brojac
    while:
    cmpl $15, %esi
    je whileKraj
        testw %cx, %ax
        jz whileBrojac

        # %dl ce za parni ce biti 0, za neparni 1
        xorb $1, %dl

        whileBrojac:
        incl %esi
        shlw $1, %cx
    jmp while
    whileKraj:

    cmpb $0, %dl
    je kraj


    #e sad, ako je neparan negiram prvi bit
    movw $1, %cx
    shlw $15, %cx
    xorw %cx, %ax


    kraj:
        movl 8(%esp), %edx
        movl $0, (%edx)
        movw %ax, (%edx)


    movl %ebp, %esp
    popl %ebp
    ret







########################### njegov C kod ############################
#include <stdio.h>

void SetParity(unsigned short int* v);

void printbin16(unsigned short int x) {
    unsigned short int m=0x8000, s=0;
    while(m) {
        printf("%s%s",m&x ? "1" : "0",++s%8 ? "" : " ");
        m >>= 1;
    }
    printf(" (%d)",x);
}

int main() {
    unsigned short int v = 41226;
    printf("\nVrednost pre  : ");
    printbin16(v);
    SetParity(&v);
    printf("\nVrednost posle: ");
    printbin16(v);
    printf("\n");
}