V_WINDOW
V_WINDOW(ilog2(MEMWIN0_APERTURE) - X_WINDOW_SHIFT));
V_WINDOW(ilog2(MEMWIN0_APERTURE) - 10));
V_WINDOW(ilog2(MEMWIN1_APERTURE) - 10));
V_WINDOW(ilog2(mem_win2_aperture) - 10));