UP_asm_3.1

#include <iostream>

using namespace std;

const int n = 4;

int main() {
	int M[n][n] = { {3,2,4,2},{4,3,2,6},{2,8,7,6},{3,3,2,4} };
	cout << "Old matrix" << endl;
	for (int i = 0; i < n; i++)
	{
		for (int j = 0; j < n; j++)
		{
			cout << M[i][j] << " ";
		}
		cout << endl;
	}
	cout << "Type k" << endl;
	int k;
	cin >> k;

	_asm
	{
		mov eax,k
		dec eax
		mov k,eax
		mov ecx,n
		beg_:
		//{
			sub ecx,1
			//address
			mov eax, ecx //i
			mov ebx, n
			imul ebx //i*n
			add eax, k
			mov esi, eax

			mov eax, k
			mov ebx, n
			imul n
			add eax, ecx
			mov edi, eax
			//swap
			mov eax, M[esi*4]
			mov ebx, M[edi*4]
			mov M[esi*4], ebx
			mov M[edi*4], eax
			add ecx,1
		//}
		loop beg_
	}
	cout << "New matrix" << endl;
	for (int i = 0; i < n; i++)
	{
		for (int j = 0; j < n; j++)
		{
			cout << M[i][j] << " ";
		}
		cout << endl;
	}
	system("pause");
	return 0;

}