asm_3_r

#include <iostream>

using namespace std;

int main() {
    int a, i = 0; //a - num, i - order
    cout << "Type a: ";
    cin >> a;
    _asm {
        //count order
        mov eax, a
        cmp eax,0 //
        je end_yes_
    beg_ord:
        cmp eax, 0
        jle end_ord
        mov ebx, 10
        xor edx, edx
        cdq
        idiv ebx
        //i++
        mov ebx, i
        add ebx, 1
        mov i, ebx
        jmp beg_ord
    end_ord :
    }
    int l, r;// left and right temp vars
    _asm{
        cmp ebx,1 //num = digit
        je end_yes_
        //divide i by 2
        mov eax, i
        mov ebx, 2
        xor edx, edx
        cdq
        idiv ebx
        mov ecx, eax
        mov esi,a
        //beg division
        beg_div:
        // save ecx as external loop counter
        mov edi,ecx
            //devide a by 10
            mov eax,esi
            mov ebx,10
            xor edx,edx
            cdq
            idiv ebx
            mov r,edx //fill r
            mov esi,eax //fill esi
            //i-2
            mov eax,i
            sub eax,2
            mov i,eax
            //10^i (current i)
            mov ecx,i //set ecx as internal loop counter
            mov eax,1
            cmp ecx, 0
            je next_step_
            mov ebx,10
            beg_pow:
        imul ebx
        loop beg_pow
            //esi/10^i
            next_step_ :
            mov ebx,eax
            mov eax,esi
            xor edx, edx
            cdq
            idiv ebx
            mov l,eax //fill l
            mov esi,edx// fill esi
            //compare
            mov eax,r
            mov ebx,l
            cmp eax,ebx
            jne end_no_
            //set ecx as external loop counter
            mov ecx,edi
            loop beg_div
    }
end_yes_:
    cout << "Number " << a << " is symmetric" << endl;
    system("pause");
    return 0;
end_no_:
    cout << "Number " << a << " is not symmetric" << endl;
    system("pause");
}