please explain too

2. Write the instructions (either in assembly or C ) you wrote in a previous course in which there are statements that: [ 3 points] a. Set the direction of a pin as input or output. b. Read a port (all pins). c. Write a port (all pins). d. Read pins 2 and 5 but not the other pins of the port. e. Write to pins 1 and 3 but not the other pins of the port