pub unsafe fn vexDisplayScroll(nStartLine: i32, nLines: i32)
Expand description
Moves a region of the screen defined by all the pixels whose y-axis coordinate are
within the range [nStartLine, 272) nLines
pixels upwards, without affecting portions
of the screen outside the specified scroll region.
Since nLines
is a signed integer, a negative value will move the pixels in the
region downwards instead. Pixels that move outside the region being scrolled are
discarded, and any portions of the region that no longer have a value after the
operation are set to the background color.
ยงSafety
Calls to jumptable functions are unsafe because jumptable functions are owned by VEXos and we cannot guarantee their safety.