4 bit Adder / Substractor
4 bit Adder / SubstractorA simple adder that adds two 4-bit integers and returns the result on a hex display.
It also keeps track of the flags.
It can also subtract if the ADD/SUB is 1
ADD/SUB = 0 => add
ADD/SUB = 1 => sub
A simple adder that adds two 4-bit integers and returns the result on a hex display.
It also keeps track of the flags.
It can also subtract if the ADD/SUB is 1
ADD/SUB = 0 => add
ADD/SUB = 1 => sub
