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1 | using System; | |
2 | using System.Collections.Generic; | |
3 | ||
4 | class Program | |
5 | { | |
6 | static void Main() | |
7 | { | |
8 | uint n = 4290772963; | |
9 | ||
10 | //Print the number before it has been changed for comparison | |
11 | Console.WriteLine(Convert.ToString(n, 2)); | |
12 | ||
13 | byte p = 3; | |
14 | byte q = 2; | |
15 | byte k = 21; | |
16 | uint mask = 1;//when shifting right you need yout right side to be int | |
17 | ||
18 | //set the mask E.g (2^3) - 1 | |
19 | for (int i = 0; i < p; i++) | |
20 | { | |
21 | mask *= 2; | |
22 | } | |
23 | ||
24 | //get the first bits | |
25 | uint getFirstBits = (((mask - 1) << q) & n) >> q; | |
26 | //get the second bits | |
27 | uint getSecondBits = (((mask - 1) << k) & n) >> k; | |
28 | ||
29 | //null the first bits | |
30 | n = n & (~((mask - 1) << q)); | |
31 | //null the second bits | |
32 | n = n & (~((mask - 1) << k)); | |
33 | ||
34 | //we concatnate the first bits and the nulled number(we exchange them) | |
35 | n = n | (getFirstBits << k); | |
36 | ||
37 | //we concatnate the second bits and the nulled number(we exchange them) | |
38 | n = n | (getSecondBits << q); | |
39 | ||
40 | //Print changed | |
41 | Console.WriteLine(Convert.ToString(n, 2)); | |
42 | - | |
42 | + | |
43 | } |