I don't know much about bit math, or else I wouldn't be asking this.
What is the simplest way to swap the first and last nybbles in a byte? For example, turn 01101010 into 10100110
Thanks for the help! :)
By the way, if you want to know why, I have a custom pcb for 2 led matrices, but I swapped the top and bottom rows of each matrices' connections! I can't rotate it, since it is not rotationally symmetrical.