WINCONx_ENWIN_F
val &= WINCONx_ENWIN_F;
decon_set_bits(ctx, DECON_WINCONx(win), WINCONx_ENWIN_F, ~0);
decon_set_bits(ctx, DECON_WINCONx(win), WINCONx_ENWIN_F, 0);
decon_set_bits(ctx, DECON_WINCONx(win), WINCONx_ENWIN_F, 0);