Dot Product
Easy · Sequential · SystemVerilog
Implement a module that produces the dot product (scalar product) of two length-$3$ vectors, $A = [a_1, a_2, a_3]$ and $B = [b_1, b_2, b_3]$. The module has one port {din} for entering the input sequence and two outputs, {run} and {dout}, which return the computation status and dot product.
Assume inputs arrive in the following order: $a_1, a_2, a_3, b_1, b_2, b_3$. Once the sixth number has been registered, {run} is asserted and {dout} returns the dot product. In subsequent cycles, {run} is de-asserted while {dout} holds its previous valid value until the next six inputs are captured.
On reset, {run} is asserted for one cycle and {dout} is zeroed.