How to shift the elements of binary matrix?

I have a 8*8 binary matrix.

example;

a=[1 0 0 1 0 1 0 1; 0 1 0 0 0 1 1 0; 0 1 0 1 1 0 0 0; 0 1 1 1 1 0 1 0; 1 0 1 0 1 0 1 1; 0 0 0 1 0 1 0 1; 1 0 1 1 0 1 0 0; 1 0 0 1 0 1 1 1];

I want to shift each element of the matrix either right shift or left shift for multiple times, so that the original matrix is altered completely.

How can I do this?

Help me out!

Thank you!

[Walter Roberson]

circshift(a, how_far_to_move_right, 2)
circshift(a, -1 * how_far_to_move_left, 2)