2012-08-05, 05:37 PM
Window scroll up is already in wiki library. Scroll down would be a trivial alteration from that.
Left and right is a matter of using 9 bit rotates to carry to next byte - for a single pixel. More than one pixel is a bit tougher to do.
Left and right is a matter of using 9 bit rotates to carry to next byte - for a single pixel. More than one pixel is a bit tougher to do.