HalfAdder is a two bit adder which is composed by Gates components.
Its logic behavior is like this:
HalfAdder behavior
input a |
input b |
sum s |
carry c |
0 |
0 |
0 |
0 |
1 |
0 |
1 |
0 |
0 |
1 |
1 |
0 |
1 |
1 |
0 |
1 |
The parameter delayTime is the delay time (tLH=tHL) of both the components.